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• Why Fine Powders Blind Test Sieves—and How an Ultrasonic Test Sieve Shaker Helps

  

  Jul 14, 2026

    Fine Powder Screening Guide Why Fine Powders Blind Test Sieves—and How an Ultrasonic Test Sieve Shaker Helps Sieve analysis looks straightforward when a material is dry, free-flowing and substantially smaller than the selected openings. The procedure becomes much less predictable when the sample contains fine, cohesive or electrostatic particles. Instead of presenting themselves individually to the mesh, particles form agglomerates, adhere to the wires and progressively cover usable openings. The operator may extend the test, increase mechanical vibration or stop repeatedly to brush the mesh, yet the result can remain slow and difficult to reproduce. An ultrasonic test sieve shaker addresses this specific limitation by combining conventional laboratory sieve motion with high-frequency energy applied to one dedicated sieve frame. The mechanical shaker continues to move the full sieve stack, while the ultrasonic generator, matched transducer and connected frame target the layer where mesh blinding is most likely to occur. The goal is not to replace a sound test method or guarantee a clog-free result. It is to keep more of the critical mesh area active and make difficult fine-powder screening easier to control. In This Guide Why fine powders blind sieve mesh Where mechanical screening reaches its limit How ultrasonic-assisted sieving works What changes in the screening process Applications in research and advanced materials How to select a suitable system Method-development recommendations Test-sieve standards and result comparability Frequently asked questions Key Takeaways Fine powders can blind mesh because cohesion, electrostatic behavior, particle shape and loading can prevent individual particles from reaching open apertures. Mechanical horizontal and vertical motion remains responsible for moving the complete sieve stack and separating ordinary powders and granules. Ultrasonic assistance introduces high-frequency vibration directly into one dedicated sieve frame at the most difficult separation point. The most defensible benefits are reduced blinding, improved dispersion and more consistent screening—not “zero clogging” or guaranteed analytical accuracy. Method repeatability still depends on representative sampling, verified test sieves, controlled sample mass, documented settings and consistent cleaning. Why Do Fine Powders Blind Test-Sieve Mesh? Coarse, free-flowing particles are dominated largely by gravity and collision. Fine powders behave differently because their mass decreases faster than the relative influence of surface forces. Cohesion between particles, electrostatic charging, moisture, irregular morphology and soft agglomeration can therefore become more important than gravity. A nominally fine sample may reach the sieve as clusters rather than as discrete particles. Mesh blinding occurs when particles lodge in apertures, bridge across openings or build a persistent layer on the wire cloth. Once part of the mesh is covered, the effective screening area shrinks. Material then concentrates on the remaining open area, increasing local loading and making further blockage more likely. This feedback loop explains why a test may start normally and then slow dramatically. Aperture size alone does not predict the difficulty. Two powders with similar nominal particle-size distributions can behave very differently because of particle shape, surface texture, density, oxidation, humidity or formulation additives. Gas-atomized metal powder may flow differently from water-atomized powder. A dry ceramic powder may behave differently after storage. A pharmaceutical blend may contain a small cohesive fraction that controls the behavior of the whole sample. Experimental work on vibrated fine-powder beds illustrates this broader point. Studies by Sonar and Katsuragi observed consolidation, fracture and decompaction behavior in cohesive micron-scale powder under different vibration conditions. Their work concerns powder-bed vibration rather than ultrasonic sieving, but it reinforces an important practical lesson: cohesive fine powders do not respond like free-flowing grains, and simply applying “more shaking” does not create one universal outcome. See the authors’ original studies on decompaction-wave propagation and vibration-induced fluidization of fine powder. Where a Conventional Laboratory Test Sieve Shaker Reaches Its Limit A well-designed laboratory test sieve shaker is still the foundation of the process. Horizontal forward/reverse rotation distributes material across the sieve surface, while vertical vibration lifts and reorients particles so that they can approach apertures in different orientations. With suitable test time, sample mass and sieve selection, this combined motion is effective for many powders and granules. The limitation appears when mechanical motion moves the stack but cannot keep the critical fine mesh clear. Increasing time may only circulate an agglomerated layer. Increasing intensity can sometimes compact material against the mesh, accelerate sieve wear or change the balance between passage and retention. Manual brushing interrupts the method and introduces another operator-dependent variable. Adding dispersing aids can alter the sample and may be unacceptable for research, pharmaceutical or high-purity material workflows. The useful question is therefore not “Is ultrasonic always better?” It is “At which sieve layer does adhesion or blinding prevent the mechanical method from completing its intended separation?” An ultrasonic system is most valuable when that critical layer can be identified and fitted with a dedicated ultrasonic frame. How Does an Ultrasonic Test Sieve Shaker Work? An ultrasonic-assisted laboratory system contains two coordinated but distinct sources of motion. Understanding their roles prevents unrealistic expectations and helps the laboratory design a repeatable procedure. 1. The Mechanical Shaker Moves the Entire Stack The shaker provides the conventional screening action for every installed sieve: horizontal forward/reverse movement plus vertical vibration. It carries the sample across successive apertures and collects size fractions in the appropriate pans. Touchscreen models can store operating programs so laboratories can document and recall speed, intensity, frequency, run count and motion timing for repeated procedures. 2. The Ultrasonic Generator Produces High-Frequency Output The separate generator produces a controlled high-frequency electrical signal. In the LVBO configuration discussed here, the nominal output frequency is 28 kHz, with adjustable amplitude and a touchscreen display for time, temperature and power information. Frequency is a system specification; it should not be interpreted as a test-sieve standard or a guarantee that every material will respond identically. 3. A Matched Transducer Transfers Energy The transducer converts the generator’s electrical output into mechanical ultrasonic vibration and transfers that energy through its connection to the dedicated sieve frame. Matching the generator, transducer, connection and frame matters because losses or unstable coupling can reduce the energy that reaches the mesh. 4. One Dedicated Frame Targets the Critical Layer In this product configuration, ultrasonic energy is applied to one dedicated ultrasonic sieve frame per system. The other sieves still receive the shaker’s mechanical motion. This focused architecture lets the laboratory position ultrasonic assistance at the layer most vulnerable to blinding rather than implying that every sieve in a tall stack is ultrasonically energized. What Changes When Ultrasonic Assistance Is Added? More Active Screening Area High-frequency vibration at the mesh can make it harder for fine particles to remain lodged in openings or attached as a persistent layer. Keeping more apertures active supports continued passage at the critical separation point. The appropriate claim is “reduced mesh blinding,” not “zero clogging,” because performance remains material- and method-dependent. Improved Dispersion of Soft Agglomerates Ultrasonic energy can help disturb weakly bound clusters and reduce the residence time of powder on the mesh. That can be useful for electrostatic, low-density or cohesive powders that otherwise travel as lumps. It should not be assumed to deagglomerate every strongly bonded particle or to replace a separate sample-dispersion step when the method requires one. More Consistent Test Completion If blinding is the main cause of an incomplete or excessively long test, keeping the selected frame active can reduce operator intervention and make endpoint behavior more consistent. Repeatability still depends on the complete method: sample preparation, sieve condition, loading, operating parameters, duration, environmental control and cleaning. Better Control Than Simply Increasing Mechanical Intensity Ultrasonic assistance adds energy where the problem occurs—the selected mesh—without requiring the laboratory to drive the entire stack more aggressively. This can be a more targeted response than extending test time or increasing overall mechanical intensity. The optimum amplitude should be established experimentally for each material rather than automatically set to maximum. Where Is Ultrasonic-Assisted Sieving Most Useful? Metal Powders and Additive Manufacturing Metal powder particle size analysis supports incoming inspection, powder-lot comparison, reclaimed-powder monitoring and research into process consistency. Fine or irregular fractions can adhere to mesh, while high-density particles place significant load on the sieve. An ultrasonic frame can be positioned at the critical cut point to support metal-powder classification. Research on vibratory feeding of gas- and water-atomized metal powders also demonstrates that powder type and operating parameters materially affect flow behavior; see the original additive-manufacturing study by Sinclair and colleagues on vibratory powder feeding. Battery Materials and New-Material Research Cathode, anode, conductive and precursor powders may be fine, electrostatic or sensitive to contamination. Research teams often need controlled separation for material preparation, comparative studies or quality checks. Stainless-steel material-contact components and documented cleaning procedures should be evaluated against the chemistry and contamination limits of the specific sample. Pharmaceutical and Food Powders Fine excipients, active ingredients, nutraceutical powders and milled food ingredients may bridge or agglomerate. Ultrasonic sieving can support development and quality-control studies, but equipment suitability does not by itself establish GMP compliance, hygienic qualification or product-contact compatibility. Those requirements must be assessed within the buyer’s validated process. Chemical Materials, Pigments and Mineral Powders Pigments, catalysts, fillers, coatings, mineral powders and fine chemical intermediates frequently combine small particle size with irregular shape or electrostatic behavior. An ultrasonic screening machine can help laboratories complete difficult sieve cuts with less manual intervention, provided the material is compatible with the sieve, seals, transducer assembly and cleaning method. Electronic Ceramics and Laboratory Testing Alumina, zirconia and other electronic-ceramic powders require controlled handling because small fractions can affect forming and sintering behavior. Universities and materials laboratories can use sieve-based classification as one part of a broader characterization workflow, particularly when a physical retained fraction is needed for weighing, microscopy or subsequent testing. How to Select Fine Powder Sieving Equipment Selection should begin with the material and method, not with the largest available power value. Ask suppliers to evaluate the target cut size, particle morphology, density, sample mass, expected throughput, electrostatic tendency, moisture sensitivity and cleaning requirements. Identify the Critical Ultrasonic Layer Determine which aperture is actually blinding. Because this system uses one dedicated ultrasonic frame, it should be installed at the critical separation point. If several layers experience severe blinding, the method may require sequential tests, a different stack arrangement or a separate evaluation rather than an assumption that one transducer energizes every layer equally. Choose 200 mm or 300 mm A 200 mm configuration is compact and appropriate for many research-scale samples. A 300 mm configuration provides greater screen area and may suit larger samples or applications that benefit from lower areal loading. Diameter alone does not determine throughput; powder behavior, aperture, sample mass and acceptable endpoint remain important. Check Generator and Laboratory Compatibility Confirmed LVBO ultrasonic generator specifications Models BO-CSZ200 / BO-CSZ300 Input voltage AC100–220V Input power 350W Approximate output power 300W Output frequency 28kHz Generator dimensions 176 × 176 × 220 mm Dedicated ultrasonic frames 1 per system Frame options 200 mm / 300 mm Confirm local voltage, plug, grounding and laboratory electrical requirements before shipment. US, EU, UK and AU plug preparation may be available, but the laboratory remains responsible for confirming local installation and safety requirements. A Practical Method-Development Workflow Define the analytical objective. Specify the fractions or critical aperture, acceptable sample mass and how the retained material will be reported. Prepare a representative sample. Follow the laboratory’s sampling and conditioning procedure. Do not assume the shaker can correct sampling bias. Inspect and clean the sieves. Check wire cloth, frame, seals and ultrasonic connection. Damaged or contaminated sieves compromise results regardless of the drive system. Install the dedicated ultrasonic frame at the critical layer. Confirm that the transducer and cable are correctly secured before energizing the generator. Begin with conservative settings. Establish suitable mechanical motion, time and ultrasonic amplitude through controlled trials. Maximum intensity is not automatically the best setting. Document the complete recipe. Record sample mass, sieve stack, environmental conditions, mechanical parameters, ultrasonic amplitude, duration and endpoint criteria. Assess repeatability. Run replicate tests and compare retained masses, completion time and visible blinding. Optimize one variable at a time. Create cleaning and inspection intervals. Fine powder can accumulate at joints and mesh edges. Follow the manufacturer’s instructions and the laboratory’s contamination-control procedure. Safety note: Fine powders may present inhalation, reactivity, electrostatic or combustible-dust hazards. Review the material safety data, grounding, ventilation and dust-control requirements before testing. Do not process combustible or reactive powders unless the complete equipment and facility are approved for that hazard. Follow the operating manual and local laboratory rules. Test-Sieve Standards and Result Comparability Ultrasonic assistance cannot compensate for an unverified or damaged sieve. Test-sieve standards address the wire cloth, aperture tolerances, frame construction and inspection methods that underpin sieve-based particle classification. ASTM E11-24 covers woven-wire test-sieve cloth and test sieves used to classify materials by particle size. ASTM states that the specification includes requirements for sieve cloth, test-sieve construction and inspection procedures, with nominal apertures from 125 mm down to 20 µm. ISO 3310-1:2016 specifies technical requirements and test methods for test sieves of metal wire cloth over the same nominal aperture range and remains current after confirmation in 2022. These standards do not certify that an ultrasonic shaker will produce a particular result for every powder. They establish requirements for the sieve itself. Buyers should therefore phrase procurement requirements carefully: matching sieve pans can be configured to the requested ASTM E11 or ISO 3310-1 specification, while the screening method must still be developed and verified for the material. Is an Ultrasonic Sieve Shaker a Particle Size Analyzer? It is more accurate to describe the system as sieve-based particle size analysis equipment. The instrument separates material physically through specified apertures, allowing the laboratory to weigh retained fractions. A laser-diffraction or image-based particle size analyzer uses a different measurement principle and may report an equivalent diameter rather than a physical sieve fraction. The methods can be complementary. A particle size analyzer can provide rapid distribution data, while a laboratory vibratory sieve shaker can prepare fractions, remove oversize contamination or provide material retained at a defined aperture for further examination. Results from different principles should not be treated as interchangeable without a correlation study. LVBO’s Combined Mechanical and Ultrasonic Screening System LVBO combines BO-200SY or BO-300SY touchscreen laboratory shakers with BO-CSZ200 or BO-CSZ300 ultrasonic generators and one matching 200 mm or 300 mm dedicated frame. The shaker supplies programmable horizontal and vertical screening motion for the complete stack. The separate 28 kHz system adds adjustable ultrasonic assistance at the critical fine-powder layer. This architecture is intended for laboratories that need ordinary sieve separation and targeted anti-blinding assistance in one workflow. Before selection, share the material, target aperture, sample mass, current problem and destination voltage. A supplier evaluation or material trial is more useful than relying only on a generic mesh-number claim. Frequently Asked Questions What is an ultrasonic test sieve shaker? It is a laboratory sieve shaker combined with an ultrasonic generator, matched transducer and dedicated sieve frame. Mechanical motion moves the sieve stack, while high-frequency energy assists the selected mesh layer. Does ultrasonic screening completely eliminate mesh blinding? No universal system can guarantee zero blinding for every powder. Ultrasonic assistance is designed to reduce persistent adhesion and blockage. Performance depends on material behavior, aperture, loading, amplitude and test method. Can one ultrasonic generator energize every sieve in the stack? In the configuration described here, one dedicated ultrasonic frame is connected per system. The mechanical shaker moves the entire stack, but ultrasonic energy is focused on the selected frame. Why use 28 kHz? 28 kHz is the nominal output frequency of this matched LVBO generator and transducer system. It identifies the equipment configuration; it is not a test-sieve standard or a guarantee of identical performance for all materials. Should I choose a 200 mm or 300 mm sieve? Choose according to sample mass, available bench space, required screen area and existing laboratory method. A 300 mm frame offers more area, while a 200 mm system is more compact. Which powders are suitable? Typical candidates include cohesive or electrostatic metal, battery, ceramic, pharmaceutical, food, chemical, pigment and mineral powders. Compatibility and safety must be reviewed for the specific sample. Can ultrasonic sieving replace a laser particle size analyzer? Not directly. Sieve analysis produces physical mass fractions based on aperture passage. Laser diffraction uses an optical model. The methods can complement each other but measure particle size differently. What information should I send when requesting a recommendation? Provide the material name, target aperture or sieve standard, approximate particle-size range, sample mass, current blinding problem, desired frame diameter, destination voltage and any contamination or safety constraints. Need to Evaluate a Difficult Powder? Send LVBO your material, target sieve aperture, sample mass, existing test method and the type of blinding you observe. We can help you compare 200 mm and 300 mm configurations and identify the most appropriate layer for one dedicated ultrasonic frame. Request a material and configuration review before ordering. Technical References ASTM E11-24: Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves. ISO 3310-1:2016: Test sieves—Technical requirements and testing—Part 1: Test sieves of metal wire cloth. Sonar, P. and Katsuragi, H. Decompaction-wave propagation in a vibrated fine powder bed. Sonar, P. and Katsuragi, H. Fracturing-induced fluidization of vibrated fine-powder column. Sinclair, C. W. et al. Vibratory Powder Feeding for Powder Bed Additive Manufacturing Using Water- and Gas-Atomized Metal Powders. { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What is an ultrasonic test sieve shaker?", "acceptedAnswer": {"@type": "Answer", "text": "It is a laboratory sieve shaker combined with an ultrasonic generator, matched transducer and dedicated sieve frame. 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It is not a test-sieve standard or a universal performance guarantee."} }, { "@type": "Question", "name": "Should I choose a 200 mm or 300 mm sieve?", "acceptedAnswer": {"@type": "Answer", "text": "Choose according to sample mass, bench space, required screen area and the established laboratory method."} }, { "@type": "Question", "name": "Which powders are suitable?", "acceptedAnswer": {"@type": "Answer", "text": "Typical candidates include cohesive or electrostatic metal, battery, ceramic, pharmaceutical, food, chemical, pigment and mineral powders, subject to compatibility and safety review."} }, { "@type": "Question", "name": "Can ultrasonic sieving replace a laser particle size analyzer?", "acceptedAnswer": {"@type": "Answer", "text": "Not directly. 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  THẺ HOT : laboratory test sieve standard test sieve lab sieving equipment sieve shaker machine laboratory test sieve shaker ultrasonic sieve shaker ultrasonic laboratory test sieve powder coating lab sieve shaker

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• Green Innovation of Powder Spraying Machine: Eco-friendly Development of Low-carbon Coating Era

  May 12, 2026

  Environmental protection and low-carbon have become the inevitable theme of global industrial manufacturing transformation, and powder spraying machines, as key equipment for surface coating, are leading the coating industry to bid farewell to high-pollution and high-energy consumption with continuous green technological innovation, opening a new chapter of sustainable production. Traditional liquid coating processes rely heavily on organic solvents, which will produce a large amount of volatile organic compounds (VOCs) during construction, causing air pollution and also bringing hidden dangers to the occupational health of operators. As a representative of green coating equipment, modern powder spraying machines completely abandon solvent-based raw materials and adopt solvent-free powder coatings, achieving near-zero VOC emissions fundamentally, which perfectly complies with increasingly stringent global environmental protection policies. The optimization of powder recovery system is the core highlight of green innovation of powder spraying machines. Traditional equipment has a low powder utilization rate, and a large amount of excess powder drifts away with the air flow, which not only causes serious material waste, but also pollutes the workshop environment. The new generation of powder spraying machines adopts closed-loop recycling design and high-efficiency dust purification structure, which can recover excess floating powder to the greatest extent, with the powder utilization rate exceeding 95%. The recycled powder can be reused after simple filtering, which greatly reduces production costs while cutting waste emissions. Energy-saving technological innovation runs through the whole operation link of the equipment. Modern powder spraying machines adopt low-power electrostatic control modules and optimized air duct design, effectively reducing electric energy loss during operation. Matching with low-temperature curing technology, it lowers the required curing temperature of powder coatings, shortens heating time, reduces the energy consumption of curing ovens by more than 25%, and realizes double energy saving in spraying and curing links. In addition, the structural design of the equipment also adheres to the green concept. The application of wear-resistant and corrosion-free environmentally friendly materials prolongs the service life of the equipment and reduces the waste generated by equipment replacement. The optimized mute and dust-proof design improves the production workshop environment, reduces noise and dust pollution, and creates a safer and more comfortable working space. Driven by the dual constraints of environmental protection policies and market demand, green upgrading has become the only way for the powder spraying machine industry. Future technological research and development will focus on low-carbon materials, ultra-low energy consumption operation and zero-emission recycling system, helping more manufacturing enterprises realize green transformation and contribute to the global goal of carbon peak and carbon neutrality.  

  THẺ HOT : máy phun bột environmental protection innovation powder recovery system low-energy consumption technology dual carbon goals VOCs emissions（ closed-loop recovery system water-based powder

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• Intelligent Empowerment of Powder Spraying Machines: Leading the Intelligent Reform of Coating Industry

  

  May 12, 2026

  In the wave of Industry 4.0, intelligentization has become the core breakthrough point for the iterative upgrading of industrial equipment, and powder spraying machines are taking the lead in completing the transformation from traditional mechanical equipment to intelligent integrated equipment. It is no longer a simple spraying tool, but a smart terminal integrating perception, analysis, adjustment and execution, rewriting the operation mode of the entire coating industry.   Traditional powder spraying machines rely heavily on manual experience for parameter setting and operation adjustment. Workers need to repeatedly debug according to the shape, material and spraying requirements of workpieces, which not only has high technical threshold, but also easily causes unstable coating quality and inconsistent production standards. With the deep integration of IoT technology, AI algorithm and machine vision, modern powder spraying machines have broken this bottleneck thoroughly.   Machine vision recognition technology endows the spraying machine with "perception ability". It can automatically identify the contour, corner and special structure of irregular workpieces, independently plan the optimal spraying path, and avoid spraying dead angles and powder accumulation. No matter complex hardware parts, automotive accessories or household appliance shells, it can realize adaptive spraying without manual repeated programming.   The embedded intelligent algorithm realizes real-time dynamic optimization of spraying parameters. The equipment can monitor environmental temperature, humidity, powder flow and electrostatic voltage in real time, automatically adjust atomization volume and spraying distance according to changes in the production environment, and always maintain the best coating state. Meanwhile, the cloud interconnection function supports remote monitoring, data synchronization and fault early warning. Enterprises can view production data anytime and anywhere, realize predictive maintenance of equipment, and greatly reduce downtime losses.   Intelligent upgrading also brings qualitative changes to production management. The intelligent powder spraying production line can realize seamless connection with automated manipulators and assembly lines, forming an unmanned full-process operation mode from feeding, pretreatment, spraying to curing. It not only liberates labor, reduces human error interference, but also realizes standardized and streamlined production.   In the future, the intelligent evolution of powder spraying machines will continue to deepen. With the empowerment of digital twin technology and big data analysis, equipment will have stronger self-learning and process optimization capabilities, provide customized spraying solutions for different industries, and become an important cornerstone for manufacturing enterprises to build smart factories.

  THẺ HOT : máy phun bột intelligent upgrading AI-driven adaptive spraying IoT technology Industry 4.0 digital twin technology spraying path 3D vision senso

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• How should small and medium-sized enterprises select appropriate spray painting equipment? Don't overlook these 4 key points

  Apr 13, 2026

  For small and medium-sized enterprises and individual operators, choosing a suitable spraying equipment can not only improve production efficiency and reduce costs, but also ensure product quality and enhance market competitiveness. But there are many types of spraying equipment on the market, including large automated production lines and portable spraying machines, and many companies do not know how to choose. Today, based on the characteristics of small and medium-sized enterprises, we will share four key points for selection to help everyone avoid pitfalls and choose the right equipment. Key point one: Choose equipment types based on production scale and demand. If the enterprise produces in small batches and multiple categories, such as small metal crafts, automotive repair parts, etc., it is recommended to choose a portable spray coating machine. The portable spray coating machine is compact, easy to carry, easy to operate, does not require a dedicated site, has low investment cost, and can flexibly adapt to the spraying needs of different scenarios; If the enterprise is engaged in large-scale and standardized production, such as household appliance casings, automotive parts, etc., it is recommended to choose an automated spray coating production line. Although the initial investment is high, the production efficiency is high, the coating quality is stable, and long-term use is more cost-effective. Key point two: Pay attention to the core performance and stability of the device. Regardless of which device is chosen, core performance is crucial. For spray painting machines, attention should be paid to the atomization effect of the spray gun, the range of powder output adjustment, and the stability of electrostatic voltage, which directly affect the quality of the coating; The stability of the powder supply device is also important to ensure uniform and continuous powder feeding, and to avoid powder breakage; The curing oven should be able to accurately control temperature to ensure that the coating is fully cured. It is recommended to choose brands with good reputation and guaranteed quality, and avoid purchasing cheap equipment, which may result in high maintenance costs and affect production in the later stage. Key point three: Consider environmental and cost factors. Under the "paint to powder" policy, environmental compliance is the bottom line for enterprises. The selected spraying equipment should meet environmental requirements, preferably equipped with a powder recycling system to improve powder utilization, reduce waste and environmental pollution. At the same time, the energy consumption and maintenance costs of the equipment should be considered. Portable spray painting machines have low energy consumption and simple maintenance, making them suitable for small and medium-sized enterprises; Automated production lines have high energy consumption, but unit costs can be reduced through large-scale production. Key point four: Choose based on one's own technical level. Small and medium-sized enterprises often lack professional spray coating technicians, so the equipment selection threshold should not be too high. It is best to have simple and easy to operate equipment, and the manufacturer can provide comprehensive technical training and after-sales service. For example, portable spray painting machines can be operated by ordinary workers after simple training, and manufacturers provide on-site maintenance services, which can reduce the technical pressure and maintenance costs of enterprises. To sum up, small and medium-sized enterprises should follow the principle of "choosing according to needs, focusing on performance, taking into account environmental protection, and being suitable for themselves" when choosing spray painting equipment. They should not blindly pursue high-end equipment, nor be tempted by cheapness. What suits them is the best.

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• Common Faults and Solutions in Powder Coating: This Guide Will Last You a Year

  Apr 13, 2026

  In the process of powder coating, many enterprises will encounter various faults, such as coating peeling, bubbles, sagging, color difference, etc., which not only affect product quality, but also reduce production efficiency and increase costs. I have been working in the powder coating industry for many years, and I have compiled the 6 most common faults and detailed solutions. I have collected this article so that you don't have to panic when encountering problems in the future. Fault 1: Coating peeling and poor adhesion. There are three main reasons: firstly, incomplete pre-treatment of the workpiece, resulting in oil stains, rust, and dust on the surface; Secondly, the curing temperature or time is insufficient, resulting in insufficient curing of the coating; The third issue is the poor quality of powder coating, which does not match the material of the workpiece. Solution: Thoroughly clean the surface of the workpiece, remove impurities through grinding, acid washing, and other methods to ensure a dry and smooth surface; Strictly adjust the curing temperature and time according to the powder instructions to ensure that the coating is fully cured; Choose high-quality powder coating that matches the material of the workpiece. Fault 2: There are bubbles and pinholes in the coating. Main reasons: There is moisture and oil on the surface of the workpiece, and bubbles are generated when the moisture evaporates during spraying; Powder coating becomes damp and clumps, resulting in pinholes after spraying; There are impurities in the curing oven that adhere to the surface of the coating. Solution: After pre-processing, the workpiece should be thoroughly dried to avoid surface moisture; When storing powder coatings, keep them dry. After being damp, they can be dried before use; Regularly clean the curing furnace to keep it clean. Fault 3: Coating sagging and uneven thickness. Main reasons: The distance between the spray gun and the workpiece is too close, and the dwell time is too long; Excessive powder output and high electrostatic voltage; Uneven movement speed during spraying. Solution: Adjust the distance between the spray gun and the workpiece (15-25cm), move the spray gun at a constant speed to avoid stopping; Adjust the powder output and electrostatic voltage according to the workpiece requirements to avoid excessive powder output; Strengthen operator training and standardize operating procedures. Fault 4: Obvious color difference in coating. Main reason: Different batches of powder coatings result in color differences; Inconsistent spraying parameters and varying coating thicknesses; Uneven curing temperature leads to color changes. Solution: Try to use the same batch of powder coating as much as possible, and conduct small batch trial spraying for different batches first; Unified spraying parameters to ensure uniform coating thickness; Check the temperature of the curing furnace to ensure uniform temperature inside the furnace. Fault 5: The powder does not apply and the adsorption effect is poor. Main reasons: Low static voltage, insufficient powder charging; The workpiece is not grounded or poorly grounded; Poor flowability of powder coating and blockage of spray gun due to clumping. Solution: Increase the electrostatic voltage to ensure that the powder is fully charged; Check the grounding condition of the workpiece to ensure good grounding; Clean the spray gun and powder supply device, crush the agglomerated powder, and ensure the flowability of the powder. Fault 6: There are impurities and particles on the surface of the coating. Main reason: There is dust in the spraying environment, which adheres to the surface of the workpiece; Impurities are present in powder coatings; There are debris inside the spray gun, blocking the powder outlet. Solution: Keep the spraying environment clean and clean it regularly; Filter the powder coating before use to remove impurities; Regularly clean the spray gun and keep the powder outlet unobstructed.

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• 2026 Powder Coating Industry Trend Forecast: These Three Directions Merit Special Attention

  Apr 13, 2026

  With the continuous tightening of environmental policies, the rapid advancement of intelligent manufacturing, and the rise of emerging industries, the powder coating industry is facing unprecedented development opportunities. As an industry practitioner, combined with the latest industry reports and market trends, today we will talk about the three major development trends of the powder coating industry in 2026, hoping to provide reference for everyone's enterprise development and personal career planning. Trend 1: Environmental protection continues to upgrade, and low-carbon has become the core competitiveness of the industry. With the advancement of the "dual carbon" target and the continuous tightening of environmental policies, low VOC and VOC free powder coatings will become the mainstream in the market. It is expected that the market share of low VOC powder coatings will further increase to over 50% by 2026. At the same time, the low-carbon value chain of powder coating will become a key focus. Enterprises will start from the entire process of raw material selection, production technology, and recycling system to reduce carbon emissions. The cooperation between giants such as BASF and AkzoNobel is a good example. In addition, the dividends of environmental policies will continue to be released, and the "double tax exemption" policy will further promote the process of "paint to powder". Environmental compliance will become the bottom line for the survival of enterprises. Trend 2: Intelligent and automated accelerated penetration, unmanned spraying has become a new hotspot. With the advancement of Industry 4.0, intelligent spraying technology will gradually become popular. Machine vision, big data, artificial intelligence and other technologies will be deeply integrated with powder spraying equipment to achieve real-time monitoring, parameter optimization and defect warning of the spraying process. The application of unmanned spraying lines will become increasingly widespread, reducing manual intervention, lowering labor costs and production risks. It is expected that by 2026, the penetration rate of automated powder spraying equipment will reach over 40%, and small enterprises will gradually introduce intelligent equipment to improve production efficiency and product quality. Trend 3: The application areas continue to expand, and emerging fields have become new growth points. The traditional fields of automobiles, home appliances, and building materials will continue to maintain stable growth, while emerging fields such as new energy vehicles, photovoltaics, rail transit, and medical equipment will become the core driving force for industry growth. For example, the demand for lightweight and highly corrosion-resistant powder coatings in new energy vehicles has surged, and high-performance powder coatings are also needed for surface protection of photovoltaic modules. The demand in these emerging fields will drive the innovation of powder coating technology and product upgrades. At the same time, the popularization of portable spray painting machines will further expand the subdivision scenarios such as on-site maintenance and small product processing, enriching the industry application scenarios. Opportunities and challenges coexist. In 2026, the powder coating industry will enter a stage of high-quality development. Only by keeping up with industry trends, increasing research and development investment, and enhancing core competitiveness can we stand out in industry competition.

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• Powder coating vs traditional painting: After reading this article, you'll know how to make the right choice.

  Apr 04, 2026

  In the field of industrial surface treatment, powder coating and traditional spray painting are the two most common coating methods, and many companies are hesitant when choosing: which one is more suitable for themselves? Today, we will make a detailed comparison in terms of environmental protection, cost, effectiveness, and applicable scenarios to help everyone make the best choice. From an environmental perspective, powder coating is superior to traditional spray painting. Traditional spray painting uses organic solvents, which generate a large amount of VOCs emissions and pollute the environment. It also requires a significant investment in the construction of end of pipe treatment facilities, otherwise it cannot meet environmental standards; Powder coating has no VOCs emissions, and the overspray powder can be recycled and reused with a utilization rate of over 95%. It not only complies with national environmental protection policies, but also reduces environmental pollution. It is currently one of the most environmentally friendly coating methods, especially suitable for enterprise transformation under the "paint to powder" policy. From a cost perspective, powder coating has more advantages over long-term use. The utilization rate of traditional spray paint coatings is only 30% -50%, resulting in a large amount of paint waste, high prices of organic solvents, and high environmental management costs; Although the initial equipment investment for powder spraying may be slightly higher, the powder utilization rate is high, there is no solvent consumption, and the cost of environmental protection is low. Long term use can significantly reduce coating costs. For small and micro enterprises engaged in small-scale production, the emergence of portable spray painting machines has further lowered the entry threshold for powder spraying, resulting in higher cost-effectiveness. From the perspective of coating effect, powder coating is more durable and uniform. The adhesion, hardness, corrosion resistance, and weather resistance of powder coating are superior to traditional spray painting. The coating thickness is uniform and not prone to defects such as sagging, bubbles, and peeling, providing long-term protection for workpieces; Traditional spray paint coatings are thinner, have poor anti-corrosion performance, are prone to fading, paint peeling and other problems, and have a shorter service life. From the perspective of applicable scenarios, both have their own focuses. Powder coating is suitable for metal workpieces, such as automotive parts, home appliance casings, metal furniture, building materials, etc., especially for scenarios with high requirements for corrosion resistance and wear resistance; Traditional spray painting is suitable for non-metallic workpieces such as plastic, wood, etc., and is also suitable for scenes that require high painting accuracy and multiple color gradients. To sum up, if your company focuses on metal workpieces, pays attention to environmental protection, cost, and coating durability, especially under the "paint to powder" policy, powder coating is definitely the first choice; If it is a non-metallic workpiece with high requirements for coating accuracy and color diversity, traditional spray painting can be chosen.

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• Essential Guide for Beginners: Operational Manual for Portable Spray Painting Machines to Avoid Common Pitfalls and Minimize Missteps

  Apr 04, 2026

  As a veteran who has been working in the industrial coating industry for 8 years, I am often asked by novice friends, "How to operate a portable spray coating machine? Why does the coating I spray always have unevenness and bubbles?" In fact, the operation of a portable spray coating machine is not difficult, but many beginners are prone to some misunderstandings, which can lead to poor coating effects. Today, I will compile a detailed operation guide to help you avoid misunderstandings and quickly get started. Firstly, sufficient preparation work must be done before operation. Many beginners are eager to start work and neglect the pre-treatment of workpieces, which is the main reason for coating peeling and bubbles. The surface of the workpiece must be cleaned thoroughly to remove impurities such as oil, rust, dust, etc. It can be treated by grinding, acid washing, phosphating, etc. to ensure that the surface is dry and flat. At the same time, it is necessary to check the spraying machine equipment to confirm that the spray gun, powder supply device, air compressor, etc. are operating normally, and that the powder coating is not clumped or deteriorated. Secondly, master the correct spraying techniques. When spraying, it is recommended to maintain a distance of 15-25cm between the spray gun and the workpiece, control the angle between 45 ° -90 °, and move at a constant speed to avoid staying for too long and causing the coating to become too thick or hang. The powder output and electrostatic voltage should be adjusted according to the material of the workpiece and the type of powder. Generally speaking, the electrostatic voltage can be appropriately increased for metal workpieces, and the powder output can be reduced when the powder particles are finer. In addition, the spraying environment is also important. It is recommended to operate in a ventilated, dry, and dust-free environment, with a temperature control of 15-30 ℃ and humidity not exceeding 70%, to avoid dust adhering to the surface of the workpiece. Then, the high-temperature curing process cannot be taken lightly. Different types of powder coatings have different curing temperatures and times, generally ranging from 160-220 ℃ and curing times of 15-30 minutes. It is important to strictly follow the powder instructions and not lower the temperature or shorten the time arbitrarily, otherwise it will result in insufficient coating curing, insufficient hardness, and easy detachment. After curing, the workpiece should be allowed to cool naturally to avoid immediate contact with cold water and prevent coating cracking. Finally, share a few common misconceptions. One is that it is believed that "the more powder is produced, the thicker the coating, the better". However, excessive coating thickness can lead to sagging, bubbles, and affect aesthetics and adhesion; Secondly, neglecting powder recycling not only wastes raw materials but also pollutes the environment; Thirdly, long-term failure to clean the spray gun and powder supply device leads to powder blockage, which affects the spraying effect. As long as you avoid these misconceptions and strictly follow the operating instructions, even beginners can spray a uniform, beautiful, and durable coating.

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• Làm thế nào để chọn máy rây bột có cơ chế tích hợp?

  

  Oct 24, 2025

  Trong thế giới làm bánh, độ chính xác là tối quan trọng. Trong khi nhiều người tập trung vào chất lượng bột mì hoặc độ chính xác của các phép đo, thì một công cụ khiêm tốn thường tạo nên sự khác biệt giữa một món bánh ngon và một món bánh tuyệt vời: rây bột. Qua nhiều thế hệ, thợ làm bánh sử dụng rây lưới đơn giản, nhưng sự ra đời của rây cơ chế tích hợp hứa hẹn hiệu quả và dễ dàng hơn. Tuy nhiên, việc lựa chọn đúng loại rây cần được cân nhắc kỹ lưỡng.'không chỉ là về việc sục khí cho bột; nó'là tìm một người bạn đồng hành trong bếp giúp đơn giản hóa quy trình và nâng cao kết quả của bạn. Mục đích chính của rây bột là hai mặt: để tạo bọt khí cho bột và loại bỏ các cục vón. Việc tạo bọt khí giúp trộn đều không khí, giúp bánh ngọt, bánh muffin và bánh ngọt mềm xốp hơn. Nó cũng giúp việc đong đếm chính xác hơn, vì bột nén có thể nặng hơn đáng kể so với bột đã rây. Cơ chế tích hợp, thường là tay quay, tay bóp hoặc nút nhấn, được thiết kế để giúp quá trình này dễ dàng và kín đáo, giảm thiểu sự bừa bộn. Điểm quyết định đầu tiên của bạn nằm ở loại cơ chế này. 1. Máy sàng tay quay: Con ngựa thồ cổ điểnĐây là loại dễ nhận biết nhất, thường gợi lên cảm giác hoài niệm. Nó có một tay quay ở bên hông, khi xoay, sẽ làm quay các cánh khuấy hoặc lưỡi dao bên trong để đẩy bột qua một lưới lọc mịn. Ưu điểm: Nhìn chung, máy xay này hiệu quả và có thể chứa một lượng bột đáng kể (thường là 3-4 cốc). Cơ chế quay tay tạo lực đòn bẩy tốt, giúp dễ dàng xay ngay cả bột đã được nén chặt. Nhiều mẫu máy được trang bị nhiều lưới sàng để rây mịn hơn.Nhược điểm: Cồng kềnh khi cất giữ. Cơ cấu, nếu được làm bằng bánh răng nhựa rẻ tiền, có thể bị kẹt hoặc hỏng theo thời gian. Thường phải dùng cả hai tay.—một cái để giữ rây và một cái để quay. Lý tưởng cho: Người thợ làm bánh thường xuyên làm bánh với số lượng lớn và coi trọng hiệu suất truyền thống, đáng tin cậy. 2. Máy sàng tay cầm bóp: Điều kỳ diệu chỉ cần một tayThiết kế hiện đại này có tay cầm mà bạn chỉ cần bóp nhẹ, giống như một chiếc kìm. Thao tác này sẽ kích hoạt một cơ chế khuấy bột và đẩy bột qua lưới. Ưu điểm: Ưu điểm lớn nhất của nó là thao tác bằng một tay. Bạn có thể giữ rây trên bát bằng một tay và bóp, để tay kia rảnh. Điều này cực kỳ tiện lợi khi cho nguyên liệu đã rây trực tiếp vào hỗn hợp. Chúng thường nhỏ gọn hơn và dễ bảo quản hơn.Nhược điểm: Dung tích thường nhỏ hơn (khoảng 1-2 cốc). Động tác bóp có thể kém hiệu quả hơn khi trộn lượng bột lớn và có thể cần lặp lại nhiều lần, có thể gây mỏi tay. Thích hợp cho: Người thợ làm bánh coi trọng sự tiện lợi, có không gian lưu trữ hạn chế hoặc thường xuyên thêm nguyên liệu đã rây vào giữa công thức. 3. Bộ lọc nút nhấn hoặc cò súng: Chuyên gia hiện đạiChúng có khái niệm tương tự như tay cầm bóp nhưng thường có thiết kế công thái học khác, chẳng hạn như cò súng ở phía trên hoặc nút bấm ở bên hông. Chúng hoạt động bằng động tác ấn nhanh. Ưu điểm: Rất dễ sử dụng và trực quan, thường ít gây mỏi tay hơn so với bóp liên tục. Chúng thường được thiết kế để dễ dàng lấy sản phẩm đúng nơi bạn cần.Nhược điểm: Giống như các mẫu máy ép, chúng thường có công suất nhỏ hơn và công suất có thể yếu hơn so với máy sàng trục khuỷu chắc chắn. Cơ chế bên trong có thể phức tạp và dễ bị tắc nghẽn hơn nếu không được vệ sinh đúng cách. Lý tưởng cho: Người làm bánh hoặc trang trí bánh quy thông thường cần rây một lượng nhỏ đường bột hoặc rắc bột ca cao lên bề mặt bánh. Một số người cho rằng thiết kế thông minh này của Lvobo là lựa chọn sàng lọc tốt nhất cho tiệm bánh, bạn nghĩ sao?

  THẺ HOT : máy sàng lọc rây bánh mì máy sàng tự động tùy chọn sàng lọc máy sàng nhỏ máy rây bánh mì máy sàng thông minh máy sàng rung

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• Sơn tĩnh điện bằng súng phun bột thủ công Hộp điện bằng nhôm sắt Khung xe máy Thiết bị sơn tĩnh điện

  

  Aug 21, 2025

  Là một công nghệ xử lý bề mặt hiệu quả và thân thiện với môi trường, phun tĩnh điện đã được áp dụng rộng rãi trong các ngành công nghiệp như ô tô, thiết bị gia dụng, xây dựng và sản xuất đồ nội thất. Tuy nhiên, bất chấp những lợi thế đáng kể về quy trình, sự xuất hiện của các khuyết tật lớp phủ vẫn là một thách thức không thể tránh khỏi trong sản xuất. Trong số đó, hiện tượng lõm (Cratering) đã thu hút sự chú ý đặc biệt do hình thái và cơ chế hình thành độc đáo của nó. Là một chuyên gia hàng đầu thế giới về công nghệ phun tĩnh điện, tôi sẽ đi sâu vào bản chất, tác động và giải pháp của hiện tượng lõm trong chủ đề đặc biệt này, giúp các học viên có được sự hiểu biết toàn diện và giải quyết vấn đề này một cách hiệu quả. Phần giới thiệu trước tiên sẽ định nghĩa hiện tượng lõm và các đặc điểm điển hình của nó, sau đó giải thích lý do tại sao cần đặc biệt chú ý đến hiện tượng lõm để đặt nền tảng cho các phân tích tiếp theo. Hiện tượng lỗ là gì (như thể hiện trong hình bên trái)Hố lõm là một khuyết tật lớp phủ thường gặp trong quá trình phun tĩnh điện, đặc trưng bởi các vết lõm hình tròn hoặc hình bán nguyệt giống như "miệng núi lửa" hoặc "vùng va chạm thiên thạch". Những vết lõm này thường có đường kính từ 1-3 mm, với phần tâm sâu hơn và các cạnh hơi nhô lên, tạo nên kết cấu ba chiều đặc trưng. Không giống như lỗ kim - nhỏ và có khả năng xuyên thấu - hố lõm xảy ra khi lực đẩy hoặc lực co ngót cục bộ trong quá trình đóng rắn khiến lớp phủ bị sụp đổ. Vật liệu xung quanh thường tạo thành một vòng tròn nhỏ nhô lên xung quanh những vết lõm này.Sự hình thành các lỗ rỗng co ngót thường liên quan đến sự thay đổi sức căng bề mặt hoặc nhiễm bẩn. Khi các chất gây ô nhiễm như cặn dầu, các chất gốc silicon hoặc các hạt lạ khác tồn tại trên bề mặt phôi, khả năng thấm ướt của lớp phủ bột tại những khu vực này giảm đáng kể. Điều này dẫn đến sự co ngót của lớp phủ trong quá trình nấu chảy và san phẳng, dẫn đến hình thành lỗ rỗng. Ngoài ra, các vấn đề về chất lượng bên trong lớp phủ bột (chẳng hạn như tạp chất hoặc sức căng bề mặt không đồng đều) và việc điều chỉnh thông số quy trình không đúng cách cũng có thể gây ra lỗ rỗng co ngót. Kiểm tra bằng kính hiển vi cho thấy tâm của các lỗ rỗng này đôi khi để lộ vật liệu nền, đôi khi thậm chí còn cho thấy dấu vết của các chất gây ô nhiễm nhỏ. Những quan sát này chỉ ra thêm rằng sự hình thành lỗ rỗng có liên quan chặt chẽ đến điều kiện bề mặt.Trong phun tĩnh điện, lỗ kim không phải là hiện tượng ngẫu nhiên mà là dấu hiệu trực tiếp cho thấy quy trình kiểm soát chưa đầy đủ. Hình thái đặc trưng của chúng khiến chúng dễ dàng nhìn thấy trên bề mặt lớp phủ, đặc biệt là trong các lớp phủ có độ bóng cao, nơi sự phản xạ ánh sáng làm nổi bật sự hiện diện của chúng. Dù trên phôi kim loại hay nền nhựa, lỗ kim có thể xuất hiện dưới nhiều hình dạng khác nhau, đặc biệt là trên các bề mặt hình học phức tạp và các khu vực cạnh dễ bị ảnh hưởng. Do đó, việc xác định chính xác lỗ kim và hiểu rõ đặc điểm của chúng là bước thiết yếu đầu tiên để tối ưu hóa chất lượng sơn phun.

  THẺ HOT : Hệ thống sơn tĩnh điện Máy phủ Máy sơn tĩnh điện Súng sơn tĩnh điện thủ công Thiết bị phủ khung xe máy Thiết bị lò sơn tĩnh điện Máy súng sơn bột Thiết bị sơn bột

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• Các vấn đề cơ học thường gặp trong ngành sơn tĩnh điện (Hai)

  

  Aug 08, 2025

  Chất giải quyết:Điều chỉnh thời gian đóng rắn theo yêu cầu đóng rắn của lớp phủ bột: mỗi lớp phủ bột đều có thời gian và nhiệt độ đóng rắn khuyến nghị, cần được thiết lập theo các thông số kỹ thuật của lớp phủ.Tối ưu hóa đường cong nhiệt độ của lò nung: làm nóng dần dần và đảm bảo sự ổn định của giai đoạn nhiệt độ không đổi, để lớp sơn tĩnh điện có thể được đóng rắn trong thời gian thích hợp.Hiệu chuẩn lò nung thường xuyên: đảm bảo lò nung hoạt động bình thường và hệ thống kiểm soát nhiệt độ chính xác. Xuất hiện bong bóng hoặc bong tróc:Trong quá trình bảo dưỡng, nếu xuất hiện bọt khí hoặc bong tróc trên bề mặt lớp phủ, nguyên nhân thường là do điều kiện bảo dưỡng không phù hợp hoặc bề mặt của vật liệu nền có vấn đề.Nguyên nhân phổ biến:Nhiệt độ quá cao hoặc quá thấp: Nếu nhiệt độ đóng rắn không được kiểm soát đúng cách, có thể dẫn đến hình thành bọt khí. Đặc biệt khi nhiệt độ quá cao, khí trong lớp phủ không thể thoát ra kịp thời và hình thành bọt khí.Bề mặt vật liệu nền không sạch: Nếu có dầu, nước hoặc tạp chất khác trên bề mặt vật liệu nền, những chất này không thể bay hơi trong quá trình đóng rắn, dẫn đến hình thành bọt khí hoặc bong tróc lớp phủ.Vấn đề về chất lượng bột: Việc sử dụng lớp phủ bột không đạt tiêu chuẩn có thể chứa tạp chất hoặc chất phụ gia, gây ra bọt khí trong quá trình đông cứng.Chất giải quyết:Đảm bảo bề mặt nền hoàn toàn sạch: Làm sạch bề mặt trước khi phun để tránh dầu hoặc nước ảnh hưởng đến quá trình đóng rắn.Kiểm soát nhiệt độ đóng rắn hợp lý: điều chỉnh nhiệt độ đóng rắn theo yêu cầu của lớp phủ bột, tránh nhiệt độ dao động quá mức và đảm bảo lớp phủ được đóng rắn ở nhiệt độ chính xác.Sử dụng sơn tĩnh điện chất lượng: Chọn sơn tĩnh điện đã qua kiểm tra để đảm bảo độ ổn định trong quá trình đóng rắn.

  THẺ HOT : Hệ thống máy sơn tĩnh điện tự động Máy sơn tĩnh điện cho kim loại Máy phun sơn tĩnh điện Máy phun sơn súng phun sơn tĩnh điện Máy sơn súng phun sơn tĩnh điện Máy sơn tĩnh điện

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• Các vấn đề cơ học thường gặp trong ngành sơn tĩnh điện (Một)

  

  Aug 01, 2025

  Các vấn đề trong quá trình bảo dưỡng:Nhiệt độ đóng rắn không đồng đềuNhiệt độ không đồng đều trong quá trình đóng rắn là nguyên nhân chính khiến chất lượng lớp phủ không đồng đều. Nhiệt độ đóng rắn quá cao hoặc quá thấp sẽ ảnh hưởng đến độ cứng, độ bám dính và hình thức của lớp phủ bột. Nguyên nhân phổ biến: Kiểm soát nhiệt độ trong lò không chính xác: Hệ thống kiểm soát nhiệt độ của lò nung bị lỗi, dẫn đến nhiệt độ quá cao hoặc quá thấp ở một số khu vực của lò. Sắp xếp vật liệu không đều: Nếu các vật được phủ không được sắp xếp đều trong lò nung, một số vật có thể không được nung nóng đều, do đó ảnh hưởng đến hiệu quả nung. Chất giải quyết:Hiệu chuẩn thường xuyên hệ thống kiểm soát nhiệt độ của lò nung: đảm bảo phân bổ nhiệt độ đồng đều trong lò nung và tránh biến động nhiệt độ cục bộ. Tối ưu hóa việc sắp xếp vật thể: sắp xếp vị trí vật thể trong lò nung hợp lý, tránh sắp xếp dày đặc và đảm bảo mỗi vật thể có thể được nung nóng đều. Sử dụng hệ thống tuần hoàn khí nóng: tuần hoàn khí hiệu quả có thể giúp phân bổ nhiệt đều và giảm hiện tượng quá nhiệt hoặc làm mát cục bộ.Thời gian bảo dưỡng quá ngắn hoặc quá dàiThời gian đóng rắn quá ngắn hoặc quá dài đều ảnh hưởng đến hiệu quả cuối cùng của lớp phủ. Thời gian đóng rắn quá ngắn có thể khiến lớp phủ không đóng rắn hoàn toàn, dẫn đến độ cứng không đủ và độ bám dính kém; thời gian đóng rắn quá dài có thể dẫn đến bề mặt bị ố vàng và lớp phủ giòn.Nguyên nhân phổ biến:Thời gian gia nhiệt của lò nung không được thiết lập đúng cách: nhiệt độ trong lò nung tăng quá nhanh hoặc quá chậm, dẫn đến thời gian nung quá ngắn hoặc quá dài.Các loại sơn tĩnh điện không tương thích: Các loại sơn tĩnh điện khác nhau yêu cầu thời gian và nhiệt độ đóng rắn khác nhau và việc sử dụng các loại sơn không phù hợp có thể dẫn đến thời gian đóng rắn không hợp lý.

  THẺ HOT : Máy sơn tĩnh điện sơn tĩnh điện súng phun sơn tĩnh điện sơn Dây chuyền xích băng tải trên cao Lò sơn tĩnh điện máy móc phủ kim loại gian hàng sơn tĩnh điện

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