Electrophoretic coating is an advanced coating technology that involves immersing the painted object in water-soluble paint as the anode (anodic electrophoresis) while setting up a corresponding cathode. A direct current is passed between these electrodes, leveraging the physical and chemical effects of the current to ensure the paint is evenly coated on the object.
The comprehensive process flow of 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.
Electrophoretic coating encompasses four simultaneous processes that work in unison.
1. Electrophoresis: Under the influence of a DC electric field, colloidal particles with positive and negative charges move towards the respective electrodes, a phenomenon also referred to as swimming.
2. Electrolysis: Redox reactions occur at the electrodes, resulting in oxidation and reduction phenomena.
3. Electrodeposition: Driven by electrophoresis, charged colloidal particles migrate toward the anode, release electrons, and deposit in an insoluble state on the template surface, forming a paint film.
4. Electroosmosis: The electric field causes the liquid phase to move while the solid phase remains stationary. This process gradually expels water from the paint film, forming a dense, high-resistance film with minimal water content.
5. Using iron red epoxy electrophoresis paint as an example: This paint system combines modified epoxy resin, butanol, ethanol amine, 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 a series of intricate physical, chemical, colloidal, and electrochemical changes.
Electrophoretic coating boasts rapid construction speeds and supports mechanized, automated continuous operation. It reduces labor intensity while achieving a uniform, strongly adherent paint film. This method excels at coating areas that are difficult or impossible to reach with conventional methods, such as fascia plate welding seams.
With a remarkable paint utilization rate of 90%-95%, electrophoretic paint uses water as a solvent, offering non-combustibility, non-toxicity, and operational ease.
The paint film produced by electrophoresis achieves excellent adhesion and surpasses ordinary paints and general construction methods in rust resistance, corrosion resistance, and weather resilience.
The paint spraying line automates the process of applying chosen colors or decorations to product surfaces, replacing manual labor with automatic spraying. Our company's paint spraying line features rapid spraying speed, consistent application, high efficiency, and low energy consumption, enhancing output. The up-and-down conveying system includes a sophisticated auxiliary lowering automatic leveling device, providing fully automated process control.
1. Experience rapid speed, uniform spraying, high efficiency, low energy consumption, and increased output, achieving 4-5 times the productivity of manual labor.
3. A quick color change system can be custom-designed to meet customer requirements, significantly reducing gun washing time during color changes and optimizing equipment usage.
4. Centralized control ensures convenient operation and maintenance.
5. The upper and lower conveying track system is customized for long and short materials, integrating an auxiliary lowering automatic leveling device for fully automated process control, making the lowering process easy and smooth.
6. With years of dedicated experience in the painting process, our entire painting line is meticulously designed to be both simple and seamless, ensuring user-friendly operation procedures and swift execution for workers.
7. Tailored to the specific dimensions and contours of the product, the spray gun angle is adjustable automatically, ensuring precision and convenience.
The powder spraying line is highly suitable for applying paint and plastic treatments on workpiece surfaces. It integrates seamlessly with various delivery machinery, including suspension conveyors, electric rail trolleys, and ground conveyors, forming an efficient transportation operation.
The core components of our powder spraying line include: powder spraying system, pretreatment equipment, painting equipment, oven, heat source system, electric control system, and suspension conveyor chain. The process flow is meticulously divided into: pre-treatment, powder coating, heating, and curing stages.
Advantages of our Automatic Powder Spraying Equipment:
1. Employing automatic powder spraying equipment not only reduces labor costs significantly but also enhances product quality, ensuring consistent and stable production for large quantities. It effectively addresses productivity challenges faced by enterprises.
2. During the spraying construction process, our automatic spraying equipment emits no irritating odors, thus preventing environmental pollution and safeguarding the physical and mental health of operators.
3. The initial utilization rate of powder spraying for our automatic equipment ranges between 70%-80%, with coating thicknesses of 60-150 microns. Remarkably, the powder coating can be recycled, allowing the overall coating utilization rate to reach 90%-98%, delivering a thicker, more durable coating in a single application.
4. The powder coatings used in our automatic powder coating equipment are solvent-free, making the process environmentally friendly and safe.
5. Once cured, the powder coatings applied by our automatic powder spraying equipment exhibit high plumpness and vibrant colors. Due to the absence of solvents, the coatings do not form pinholes or bubbles during the curing process. Additionally, as a solid coating, it remains stable, preventing leaks and evaporation during transportation.
Q1. What are your packing terms?
A: Typically, we ensure the safety of our goods by using a thicker bubble paper. Some items are also securely packed in cartons.
Q2. What are your payment terms?
A: We accept payment by T/T, with 30% deposit required for production, and the remaining 70% balance due before delivery. To ensure transparency, we will provide you with photos of the products and their packaging before you settle the balance.
Q3. What are your delivery terms?
A: Our standard quotation is based on FOB Qingdao, but we are flexible and also accept EXW, FOB, CFR, CIF, and DDU terms.
Q4. What about your delivery time?
A: Delivery time generally depends on the specifics of the project, especially since our products are customized. For instance, if your required voltage is different from 380V/3PH/50Hz, the delivery time will be extended to accommodate 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 custom drawings for you.
Q6: How do you ensure long-term and beneficial relationships with your clients?
A1. We consistently provide high-quality products at competitive prices to ensure our customers benefit.
A2. We respect every customer as a friend and approach all business dealings with sincerity,
regardless of their origin.
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