Electrophoretic coating is an advanced technology where the painted object is immersed in water-soluble paint, serving as the anode (anodic electrophoresis), while a corresponding cathode is set up. A direct current is passed between them, ensuring a uniform application of paint on the object through the electrochemical and physical effects of the current.
The electrophoretic coating workflow for general metal surfaces is meticulously structured as follows: Pre-cleaning → On-line → Oil removal → Washing → Rust removal → Washing → Neutralization → Washing → Phosphating → Washing → Passivation → Electrophoretic coating → Cleaning in the tank → Ultrafiltration → Drying → Off-line.
Electrophoretic coating is a multifaceted process encompassing four simultaneous stages.
1. Electrophoresis: Under the influence of a DC electric field, positively and negatively charged colloidal particles migrate towards the respective opposite poles, a phenomenon also referred to as swimming.
2. Electrolysis: Redox reactions occur at the electrodes, resulting in oxidation and reduction phenomena at the respective poles.
3. Electrodeposition: Due to electrophoresis, charged colloidal particles move towards the anode, release electrons, and deposit in an insoluble form. This precipitation forms a robust paint film on the surface.
4. Electroosmosis: Under the electric field, the solid phase remains stationary while the liquid phase moves. This process expels water from the paint film, resulting in a dense, high-resistance coating that even current cannot penetrate.
5. Taking iron red epoxy electrophoresis paint as an example: The paint system comprises modified epoxy resin, butanol, ethanolamine, talc, and iron red substances. When mixed with distilled water and subjected to a DC electric field, it separates into positively charged cations and negatively charged anions, initiating a series of complex physical, chemical, and electrochemical changes.
Electrophoretic coating boasts rapid construction speed, enabling mechanized and automated continuous operation. This reduces labor intensity and ensures uniform paint film adhesion. Even hard-to-coat areas, like welded seams, achieve smooth, even coverage.
The paint utilization rate in electrophoretic coating is impressively high at 90%-95%. Using water as a solvent, it offers advantages such as non-combustibility, non-toxicity, and ease of operation.
Post-electrophoresis, the dried paint film exhibits superior adhesion, with enhanced rust resistance, corrosion resistance, and weather durability compared to conventional paints and application methods.
Our paint spraying line automates the application of desired colors or decorations onto products, replacing manual labor with precision spraying. It features fast spraying speeds, uniform application, high efficiency, low energy consumption, and increased output. The system includes an advanced auxiliary leveling device for different material lengths, with fully automated process control.
1. Fast speed, consistent spraying, high efficiency, low energy consumption, and high output – 4-5 times more productive than manual labor.
3. A quick color change system can be tailored to customer requirements, significantly reducing gun washing time during color changes and enhancing equipment utilization.
4. Centralized control system for easy operation and maintenance.
5. The upper and lower conveying track system is designed for varying material lengths, featuring an auxiliary automatic leveling device that ensures seamless and comfortable lowering. The entire process is fully automated for ease of control.
6. With years of unparalleled expertise in the painting process, our entire painting line is meticulously engineered for simplicity and smoothness. The operation procedures are straightforward, ensuring swift and effective execution by workers.
7. Tailored to the dimensions and contours of each product, the spray gun angle is automatically adjustable, providing precision and efficiency.
Our versatile powder spraying line is expertly designed for applying paint and plastic coatings to workpiece surfaces. Seamlessly integrated with delivery machinery such as suspension conveyors, electric rail trolleys, and ground conveyors, it forms a streamlined transportation operation.
Key components of our advanced powder spraying line include: a state-of-the-art powder spraying system, high-performance pretreatment equipment, precision painting tools, an efficient oven, robust heat source system, sophisticated electric control system, and a durable suspension conveyor chain. The process flow is thoughtfully segmented into: pre-treatment, powder coating, heating, and curing.
Discover the unparalleled advantages of our automatic powder spraying equipment.
1. Utilizing our automatic powder spraying equipment not only slashes labor costs but also markedly enhances product quality. This ensures consistent product excellence, enabling smooth, stable, and large-scale production. It offers a comprehensive solution to productivity challenges faced by enterprises.
2. Our automatic spraying equipment operates without emitting any irritating odors, effectively safeguarding the environment and the health of operators. It prevents environmental pollution and protects the physical and mental well-being of users.
3. The initial utilization rate of our automatic powder spraying equipment reaches an impressive 70%-80%, with coating thicknesses of 60-150 microns. Furthermore, its powder coating is recyclable, boosting overall utilization rates to an exceptional 90%-98%. A single application can achieve a robust and thicker coating.
4. Our automatic powder coating equipment uses solvent-free powder coatings, ensuring a safer and more environmentally friendly process.
5. Post-curing, the powder coatings exhibit high fullness and a rich, soft color. The solvent-free nature of the powder coating minimizes the risk of pinholes and bubbles during curing. As a solid coating, it eliminates leakage and evaporation during transportation, maintaining the integrity of the coat.
Q1. What are your packing terms?
A: Typically, we ensure the utmost protection by using thicker bubble paper for most items, while some are securely packed in cartons.
Q2. What are your payment terms?
A: We require a 30% deposit via T/T for production commencement, with the remaining 70% due before delivery. To ensure transparency, we will provide you with photos of the products and packaging prior to the final payment.
Q3. What are your delivery terms?
A: Our standard quotation is based on FOB Qingdao. However, we also accommodate other terms such as EXW, CFR, CIF, and DDU.
Q4. What is your delivery timeframe?
A: Delivery times vary depending on project specifics, as customization is often required. For instance, different voltage requirements like 380V/3PH/50Hz necessitate additional time for custom-made motors or electric components.
Q5. Can you manufacture according to technical drawings?
A: Absolutely, we can produce based on your technical drawings or specific requirements. Additionally, we can create detailed drawings for you.
Q6: How do you foster long-term and good relationships with clients?
A1. We ensure that good quality and competitive pricing are at the forefront to benefit our customers;
A2. We treat every customer as a valued friend, conducting business with sincerity and fostering genuine relationships, regardless of their origin.
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