Electrophoretic coating is an advanced technology where the object to be coated is submerged in a water-soluble paint solution. Acting as an anode (anodic electrophoresis), the object is paired with a cathode, and a direct current is applied between the two. This process ensures that the paint is uniformly layered onto the object through the combined physical and chemical effects of the current.
The standardized process flow for electrophoretic coating on metal surfaces includes the following steps: Pre-cleaning → On-line → Oil removal → Washing → Rust removal → Washing → Neutralization → Washing → Phosphating → Washing → Passivation → Electrophoretic coating → Cleaning in the tank → Ultra-filtration → Drying → Off-line. Each phase ensures optimal surface preparation and coating quality.
Electrophoretic coating typically encompasses four simultaneous processes, each contributing to the superior finish and durability of the coating.
1. Electrophoresis: Driven by a DC electric field, positively and negatively charged colloidal particles migrate towards their respective opposite poles, a phenomenon also known as swimming.
2. Electrolysis: Redox reactions occur at the electrodes, leading to oxidation and reduction phenomena which enhance the coating's adherence and uniformity.
3. Electrodeposition: Colloidal particles, driven by electrophoresis, migrate towards the anode and release electrons on the template surface, resulting in the formation of an insoluble, deposited paint film.
4. Electroosmosis: While the solid phase remains stationary, the liquid phase moves under an electric field. This movement expels water from the paint film, creating a dense, highly resistant coating with minimal water content.
5. Example - Iron Red Epoxy Electrophoresis Paint: Utilizing a system of modified epoxy resin, butanol, ethanol amine, talc, and iron red substances mixed with distilled water. Under DC electrical influence, this mixture separates into positively charged cations and negatively charged anions, undergoing a series of complex physical, chemical, and electrochemical transformations.
Electrophoretic coating offers rapid application and enables automated, continuous operation. This reduces labor intensity and ensures a uniform, strong, and smooth paint film. It is especially effective for coating challenging areas, such as weld seams on fascia plates, that are difficult to cover using traditional methods.
With a paint utilization rate of 90%-95%, electrophoretic painting stands out for its efficiency. Using water as a solvent, it is non-flammable, non-toxic, and easy to handle, making it a safer and more environmentally friendly option.
Coatings cured through electrophoresis boast excellent adhesion. Their rust resistance, corrosion resistance, and weather durability surpass those of conventional paints and application methods, offering long-lasting protection and aesthetic appeal.
Our paint spraying line automates the process of applying color and decorations, replacing manual labor with precision spraying. Designed by Shandong Bonita Machinery Co. Ltd, this system offers rapid and uniform application, high efficiency, and low energy consumption, significantly boosting production output. The innovative conveyor system adapts to different material lengths, featuring an auxiliary automatic leveling device that ensures fully automated process control.
1. Key Benefits: Fast speed, uniform spraying, high efficiency, low energy consumption, and high output—4-5 times that of manual labor.
3. Quick Color Change System: Customizable to meet customer requirements, this feature minimizes gun cleaning time during color changes, enhancing equipment usage efficiency.
4. Centralized Control: Simplifies operation and maintenance, ensuring a streamlined process.
5. Advanced Conveying System: Developed to handle various material lengths, the upper and lower tracks feature an auxiliary automatic leveling device for easy and comfortable lowering, ensuring fully automated process control.
6. Leveraging years of expertise in painting processes, our entire painting line is meticulously designed for simplicity and fluidity. The operation procedures are straightforward, enabling rapid and efficient performance by workers.
7. Our advanced system allows the spray gun angle to adjust automatically based on the product's size and shape, ensuring precision and efficiency.
Our powder spraying line is expertly engineered for applying paint and plastic coatings on workpiece surfaces. It seamlessly integrates with various delivery systems such as suspension conveyors, electric rail trolleys, and ground conveyors to enhance transportation operations.
Key components of our powder spraying line include a powder spraying system, pretreatment equipment, painting equipment, oven, heat source system, electric control system, and suspension conveyor chain. The process flow is methodically segmented into pre-treatment, powder coating, heating, and curing phases.
Advantages of Our Automatic Powder Spraying Equipment:
1. Utilizing our automatic powder spraying equipment not only substantially reduces labor costs but also significantly enhances product quality. This ensures consistent product excellence, enabling smooth, stable, and high-volume production, effectively addressing productivity challenges faced by enterprises.
2. During the spraying process, our equipment emits no irritating odors. This prevents environmental pollution and protects the physical and mental health of operators, making it an eco-friendly solution.
3. Our automatic powder spraying equipment achieves an initial powder utilization rate of 70%-80%, with coating thickness ranging from 60-150 microns. The system's recycling capability boosts the overall coating utilization rate to an impressive 90%-98%, providing a robust, thick coating with just one application.
4. The powder coating used in our automatic powder coating equipment is solvent-free, ensuring a safer and more environmentally friendly process.
5. Post-curing, the powder coating boasts high fullness and vibrant color. Due to the absence of solvents, it avoids the formation of pinholes and bubbles during curing. As a solid coating, it remains intact during transportation, preventing leaks and evaporation.
Q1. What is your terms of packing?
A: We prioritize the safety and integrity of our products. Typically, we use thicker bubble paper for protective cushioning. For additional protection, some items are securely packed in durable cartons.
Q2. What is your terms of payment?
A: Our payment terms are flexible to accommodate your needs. We require a 30% deposit via T/T to initiate production, with the remaining 70% balance due before delivery. Rest assured, we will provide detailed photos of the products and packaging prior to your final payment.
Q3. What is your terms of delivery?
A: We primarily offer quotations based on FOB Qingdao. However, to better serve you, we also accommodate other terms such as EXW, CFR, CIF, and DDU, ensuring we meet your specific shipping needs.
Q4. How about your delivery time?
A: Delivery times can vary depending on the customization level of your project. If your required voltage differs from the standard 380V/3PH/50Hz, please note that additional time may be needed for sourcing custom-made motors or electrical components.
Q5. Can you produce according to the technical drawings?
A: Absolutely. We pride ourselves on our ability to manufacture products based on your technical drawings or specifications. Additionally, our expert team can create detailed drawings tailored to your unique requirements.
Q6: How do you make our business long-term and good relationship?
A1. We ensure unwavering quality and competitive pricing, providing substantial value to our customers.
A2. We foster long-term relationships by treating every customer with the utmost respect and professionalism. We are dedicated to conducting business sincerely and building genuine friendships, regardless of geographical boundaries.
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