Electrophoretic coating is an advanced technology where the painted object is immersed in water-soluble paint, acting as the anode in anodic electrophoresis. A corresponding cathode is established, and a direct current is applied between the electrodes. This causes the paint to coat the object uniformly through the physical and chemical effects of the current.
The process flow of electrophoretic coating on general metal surfaces includes several meticulous stages: Pre-cleaning → On-line positioning → Oil removal → Washing → Rust removal → Washing → Neutralization → Washing → Phosphating → Washing → Passivation → Electrophoretic coating → Tank cleaning → Ultrafiltration → Drying → Off-line.
Electrophoretic coating encompasses four concurrent processes that work synergistically.
1. Electrophoresis: Under the influence of a DC electric field, colloidal particles charged positively and negatively migrate towards their respective electrodes, a process also known as swimming.
2. Electrolysis: Oxidation and reduction reactions occur at the electrodes, resulting in the formation of distinct oxidation and reduction phenomena on each electrode.
3. Electrodeposition: Due to electrophoresis, charged colloidal particles move towards the anode, release electrons, and deposit in an insoluble state, forming a paint film.
4. Electroosmosis: The electric field causes the liquid phase to move while the solid phase remains stationary. Electroosmosis drives water out of the paint film, resulting in a dense, low-water-content paint film with high resistance, impervious even to current.
5. Taking Iron Red Epoxy Electrophoresis Paint as an example: The electrophoresis paint system includes modified epoxy resin, butanol, ethanolamine, talc, and iron red pigments. When mixed with distilled water and subjected to a DC electric field, it separates into positively charged cations and negatively charged anions, undergoing a complex series of physical, chemical, colloid, and electrochemical changes.
The construction speed of electrophoretic coating is remarkably fast. It supports mechanized and automatic continuous operations, reducing labor intensity and producing a uniform, strong adhesive paint film. It achieves an even and smooth finish on parts that are typically challenging to coat, such as the welding seams on fascia plates.
With a paint utilization rate of 90%-95%, electrophoretic paint is efficient and economical. Utilizing water as a solvent, it boasts non-combustible, non-toxic properties and is easy to operate.
The paint film formed after electrophoresis exhibits excellent adhesion, with superior rust resistance, corrosion resistance, and weather resistance compared to ordinary paints and general construction methods.
Our company's paint spraying line is designed for automatic surface spraying to apply desired colors or decorations, replacing manual labor. This system offers fast spraying speeds, uniform coverage, high efficiency, low energy consumption, and increased output. The up-and-down conveying system includes an auxiliary automatic leveling device to accommodate varying material lengths, ensuring a fully automated process.
1. Fast speed, uniform spraying, high efficiency, low energy consumption, and high output—yielding 4-5 times more than manual labor.
3. The quick color change system, customizable to customer requirements, significantly reduces gun washing time during color changes and enhances equipment utilization.
4. Centralized control for convenient operation and maintenance.
5. The conveying track system accommodates long and short materials, with an auxiliary lowering automatic leveling device that ensures a fully automated and comfortable lowering process.
6. Leveraging years of expertise in painting processes, our streamlined painting line is engineered for simplicity and ease of operation. The design ensures a straightforward workflow, enabling workers to execute tasks swiftly and efficiently.
7. The spray gun angle is fully adjustable to accommodate various product sizes and shapes, delivering precise and consistent coverage with every application.
The powder spraying line is adept at applying both paint and plastic coatings to workpiece surfaces. This versatile system integrates seamlessly with transportation machinery, including suspension conveyors, electric rail trolleys, and ground conveyors to facilitate smooth and efficient material handling.
Key components of our powder spraying line include a high-performance powder spraying system, advanced pretreatment equipment, state-of-the-art painting machinery, reliable ovens, an efficient heat source system, an intuitive electric control system, and a robust suspension conveyor chain. The process flow encompasses pre-treatment, powder coating, heating, and curing stages.
Advantages of Automatic Powder Spraying Equipment.
1. Utilizing automatic powder spraying equipment not only reduces labor costs significantly but also enhances product quality and ensures its consistency. This technology facilitates large-scale, stable production, effectively resolving productivity challenges for enterprises.
2. During the spraying process, our automatic equipment emits no irritating odors, safeguarding the environment from pollution and shielding operators from potential health hazards. This aligns with our commitment to sustainability and worker well-being.
3. Our automatic powder spraying equipment boasts an initial powder utilization rate of 70%-80%, with coating thicknesses ranging from 60-150 microns. Additionally, the system allows for powder recycling, elevating the overall coating utilization rate to an impressive 90%-98%, ensuring thicker and more uniform coatings in a single pass.
4. The powder coatings used in our automatic equipment are solvent-free, promoting a safer and more eco-friendly application process.
5. Post-curing, the powder coatings reveal a high-gloss finish with rich, vibrant colors. The absence of solvents minimizes the risk of pinholes and bubbles during the curing process, and as a solid coating, it remains stable without leakage or evaporation during transportation.
Q1. What are your packing terms?
A: Typically, we meticulously pack our goods with thicker bubble paper for ultimate protection. Some items may also be secured in cartons to ensure they reach you in perfect condition.
Q2. What are your payment terms?
A: We require a T/T payment method, with a 30% deposit to commence production. The remaining 70% balance is due before delivery. Rest assured, we will provide detailed photos of the products and their packaging before the final payment is made.
Q3. What are your delivery terms?
A: Our quotations are typically based on FOB Qingdao terms. However, we are flexible and can also accommodate EXW, FOB, CFR, CIF, and DDU terms to suit your needs.
Q4. What is your delivery timeline?
A: Delivery times vary depending on the project due to our customized solutions. If your requirements differ from our standard 380V/3PH/50Hz voltage, additional time may be needed to source custom-made motors or electric components.
Q5. Can you manufacture based on technical drawings?
A: Absolutely, we can produce items according to your technical drawings or specific requirements. Additionally, our team is capable of creating detailed drawings for your approval.
Q6: How do you ensure long-term and positive business relationships with your clients?
A1. We maintain superior quality and competitive pricing to ensure our clients gain maximum benefits.
A2. We treat every client with the utmost respect and cherish the opportunity to build genuine business partnerships and friendships,
regardless of their geographic location.
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