Electrophoretic coating is a cutting-edge technology where the object to be painted, acting as the anode (anodic electrophoresis), is immersed in a water-soluble paint. A corresponding cathode is set up, and a direct current is applied between them. This process ensures the paint is uniformly applied to the object through the combined physical and chemical actions of the current.
The comprehensive process flow for electrophoretic coating on general metal surfaces includes: Pre-cleaning → On-line → Oil removal → Washing → Rust removal → Washing → Neutralization → Washing → Phosphating → Washing → Passivation → Electrophoretic coating → Cleaning on the tank → Ultra-filtration → Drying → Off-line.
Four simultaneous processes are typically involved in electrophoretic coating.
1. **Electrophoresis:** Under the influence of a DC electric field, positively and negatively charged colloidal particles move towards their respective electrodes, a phenomenon also known as swimming.
2. **Electrolysis:** Redox reactions occur at the electrodes resulting in oxidation and reduction phenomena.
3. **Electrodeposition:** Due to electrophoresis, charged colloidal particles move toward the anode near the template surface, release electrons, and deposit in an insoluble state, forming a paint film.
4. **Electroosmosis:** Under an electric field, the solid phase remains stationary while the liquid phase moves. This causes the water in the paint film to be gradually expelled, resulting in a dense paint film with very low water content and high resistance.
5. **Iron Red Epoxy Electrophoresis Paint Example:** The electrophoresis 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, undergoing complex physical, chemical, colloid, and electrochemical changes.
Electrophoretic coating boasts a fast construction speed, enabling mechanized and automatic continuous operation. This reduces labor intensity while ensuring a uniform, strong, and smooth paint film, even on parts that are difficult to coat using traditional methods, such as the welding seams on fascia plates.
The paint utilization rate reaches an impressive 90%-95%. Since electrophoretic paint uses water as a solvent, it is non-flammable, non-toxic, and easy to handle.
After electrophoresis, the resulting paint film exhibits excellent adhesion, superior rust and corrosion resistance, and remarkable weather resilience, surpassing ordinary paints and general construction methods.
Our revolutionary paint spraying line offers automatic surface treatment to infuse products with stunning colors and decorations, replacing manual labor with cutting-edge automation. Designed by Shandong Bonita Machinery Co. Ltd, this state-of-the-art system boasts rapid spraying speeds, uniform application, exceptional efficiency, and low energy consumption, substantially boosting output. The innovative up-and-down conveying system integrates an advanced automatic leveling device to handle varying material lengths with ease. Fully automated process control ensures seamless, high-quality operations.
1. Experience lightning-fast speeds, impeccable uniform spraying, unmatched efficiency, and impressive energy savings that result in outputs 4-5 times higher than manual methods.
3. Our quick color change system, customizable to your specifications, dramatically reduces gun washing time during color transitions, optimizing equipment usage and enhancing productivity.
4. Centralized control makes operation and maintenance hassle-free, ensuring efficiency and ease of use.
5. The sophisticated upper and lower conveying track system, designed to handle various material lengths, features an automatic leveling device that guarantees effortless and precise lowering, fully automated for your convenience.
6. With extensive experience in painting processes, our entire line is engineered for simplicity and smoothness, featuring intuitively easy procedures that enable swift operation by workers.
7. Automatically adjustable spray gun angles cater to the size and shape of each product, ensuring optimal application every time.
Our powder spraying line excels in applying paint and plastic treatments to workpiece surfaces, seamlessly integrating with delivery mechanisms like suspension conveyors, electric rail trolleys, and ground conveyors to form a coherent transportation operation.
Key components of the powder spraying line include: a high-efficiency powder spraying system, advanced pretreatment equipment, state-of-the-art painting equipment, energy-efficient ovens, a robust heat source system, sophisticated electric control systems, and a durable suspension conveyor chain. The comprehensive process involves pretreatment, powder coating, and heating & curing stages.
Advantages of Automatic Powder Spraying Equipment.
1. By leveraging automatic powder spraying equipment, companies can significantly cut labor costs while dramatically enhancing product quality. This ensures consistent product standards and smooth, large-scale production, resolving productivity challenges for enterprises.
2. Our automatic spraying equipment emits no irritating odors during operation, preventing environmental pollution and safeguarding the physical and mental health of operators.
3. With first-time powder utilization rates of 70%-80%, our automatic powder spraying equipment achieves coating thicknesses of 60-150 microns. The ability to recycle powder coatings further elevates utilization rates to an impressive 90%-98%, delivering thicker, more durable coatings with each application.
4. The solvent-free powder coating used in our automatic powder coating equipment ensures a safer and more environmentally friendly application.
5. Once cured, our powder coatings achieve high plumpness and a soft, vibrant color. The absence of solvents means no pinholes or bubbles form during curing, and the solid nature of the coating prevents leakage or evaporation during transport, guaranteeing a flawless finish.
Q1. What is your terms of packing?
A: Generally, we pack our goods by thicker bubble paper to ensure maximum protection. Additionally, some items are securely packed in sturdy cartons to prevent damage during transit.
Q2. What is your terms of payment?
A: We require payment through T/T, with a 30% deposit to initiate production and the remaining 70% balance to be paid before delivery. We will provide you with detailed photos of the products and packaging prior to your final payment.
Q3. What is your terms of delivery?
A: Our standard quotation is based on FOB Qingdao. However, we are flexible and also accept delivery terms such as EXW, FOB, CFR, CIF, and DDU to cater to your specific needs.
Q4. How about your delivery time?
A: The delivery time mainly depends on the custom requirements of each project. For projects requiring non-standard voltages, such as variations from 380V/3PH/50Hz, additional time will be needed to source custom-made motors or electric components.
Q5. Can you produce according to the technical drawings?
A: Absolutely, we can manufacture products based on your technical drawings and specific requirements. Moreover, we can create detailed drawings for your review and approval.
Q6: How do you make our business long-term and good relationship?
A1. We maintain superior quality and competitive pricing to ensure our customers continue to benefit from our products and services.
A2. We treat every customer with the utmost respect and view them as our valued friends. We are committed to conducting business sincerely and fostering lasting friendships,
no matter where they come from.
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