Electrophoretic coating is a pioneering technology where the painted object, serving as the anode (anodic electrophoresis), is immersed in water-soluble paint. A cathode is set up opposite to it, and a direct current is passed between them. This current facilitates an even coating on the object, achieved through both physical and chemical effects.
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 in the tank → Ultra-filtration → Drying → Off-line.
Electrophoretic coating encompasses four simultaneous, integral processes.
1. Electrophoresis: In a DC electric field, colloidal particles charged positively and negatively move towards the negative and positive electrodes respectively, a process also referred to as swimming.
2. Electrolysis: Redox reactions occur at the electrodes, producing oxidation and reduction phenomena.
3. Electrodeposition: Driven by electrophoresis, charged colloidal particles move to the anode's surface, releasing electrons and forming an insoluble deposition. This culminates in the creation of a paint film.
4. Electroosmosis: Under the electric field, the liquid phase moves while the solid phase remains stationary. This action expels water from the paint film, resulting in a dense, high resistance film with minimal water content.
5. Taking iron red epoxy electrophoresis paint as an example: The system includes modified epoxy resin, butanol, ethanol amine, talc, and iron red substance. 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 chemistry, and electrochemical processes.
Electrophoretic coating offers rapid construction speeds with mechanized, automatic, and continuous operation, reducing labor intensity. It produces uniform, strongly adhesive, and smooth paint films, even on hard-to-coat areas like the welding seams of fascia plates.
With an outstanding paint utilization rate of 90%-95%, electrophoretic paint uses water as a solvent, offering non-combustibility, non-toxicity, and ease of operation.
Dried electrophoretic paint films exhibit excellent adhesion. Their rust resistance, corrosion resistance, and weather resistance surpass those of ordinary paints and conventional construction methods.
Our paint spraying line automates surface spraying, adding desired colors or decorations while replacing manual labor. Designed and developed by our company, it boasts fast spraying speeds, uniform application, high efficiency, and low energy consumption, significantly boosting output. Additionally, the system includes an advanced auxiliary down automatic leveling device for different material lengths, with fully automated process control.
1. Featuring rapid speeds, uniform spraying, high efficiency, and low energy consumption, our system achieves high output, outperforming manual labor by 4-5 times.
3. Customized quick color change systems are available, significantly reducing gun washing time during color changes and enhancing equipment usage efficiency.
4. Centralized control makes operation and maintenance convenient and user-friendly.
5. Our upper and lower conveying track system tackles the differences between long and short materials. It includes an auxiliary lowering automatic leveling device for easy and comfortable lowering, with fully automated process control.
6. Drawing from years of expertise in the painting process, our entire painting line is meticulously crafted to ensure simplicity and efficiency. The operation procedures are streamlined, making it easy for workers to perform tasks quickly and efficiently.
7. Tailored to the size and shape of each product, our advanced spray gun automatically adjusts its angle for optimal coating precision.
Our powder spraying line is meticulously designed for applying paint and plastic treatments on workpiece surfaces. It seamlessly integrates with transportation systems such as suspension conveyors, electric rail trolleys, and ground conveyors to ensure smooth operation.
The powder spraying line is composed of several key components: a powder spraying system, pretreatment equipment, painting equipment, an oven, a heat source system, an electric control system, and a suspension conveyor chain. The process flow is thoughtfully divided into pre-treatment, powder coating, heating, and curing stages.
Advantages of Automatic Powder Spraying Equipment.
1. Employing automatic powder spraying equipment not only slashes labor costs but, more importantly, it significantly enhances product quality. This ensures consistent, high-quality output and facilitates the smooth and stable production of large quantities, effectively addressing productivity challenges faced by enterprises.
2. During the spraying process, our automatic equipment does not emit any irritating odors, thereby preventing environmental pollution and safeguarding the physical and mental health of operators.
3. Our automatic powder spraying equipment boasts a first-time utilization rate of 70%-80% for powder spraying. The coating thickness ranges from 60-150 microns, and the powder can be recycled, pushing the overall coating utilization rate to an impressive 90%-98%. A single application yields a robust, thicker coating.
4. The powder coating applied by our automatic powder coating equipment is entirely solvent-free,
5. Post-curing, the powder coating from our automatic powder spraying equipment exhibits high plumpness and a soft color. Due to the absence of solvents, the coating is less prone to pinholes and bubbles during curing. As a solid coating, it remains stable without leaking or evaporating during transportation.
Q1. What is your standard for packing?
A: Generally, we meticulously wrap our goods with thicker bubble paper to ensure maximum protection. Some items are also securely packed in sturdy cartons.
Q2. What are your payment terms?
A: We require a 30% deposit via T/T to commence production, with the remaining 70% balance paid before delivery. We provide detailed photos of the products and their packaging before you finalize the balance payment.
Q3. What are your delivery terms?
A: Our quotations are typically under FOB Qingdao. However, we are flexible and also accept EXW, FOB, CFR, CIF, and DDU terms.
Q4. What is your estimated delivery time?
A: The delivery time largely depends on the specific project since each is customized. If your required voltage differs from our standard 380V/3PH/50Hz, additional time will be necessary to source custom-made motors or electric components.
Q5. Can you manufacture products according to technical drawings?
A: Absolutely. We can produce items based on your technical drawings or specific requirements. We can also create detailed drawings for you if needed.
Q6: How do you ensure a long-term and positive business relationship?
A1: We maintain high-quality standards and competitive pricing to ensure our customers consistently benefit.
A2: We treat every customer with respect and consider them our friends, conducting business with sincerity and building genuine relationships,
regardless of their origin.
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