Electrophoretic coating is a cutting-edge coating technology where the painted object, acting as the anode (anodic electrophoresis), is immersed in water-soluble paint. A corresponding cathode is established, and a direct current is passed between the two poles. This causes the paint to evenly coat the object through a combination of physical and chemical interactions facilitated by the current.
The meticulous process flow of electrophoretic coating on general metal surfaces includes the following steps: 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 and interrelated processes.
1. Electrophoresis: Under the influence of a DC electric field, colloidal particles with positive and negative charges move toward the corresponding oppositely charged electrodes, a process often referred to as 'swimming.'
2. Electrolysis: Redox reactions occur at the respective electrodes, resulting in oxidation and reduction phenomena.
3. Electrodeposition: Due to electrophoresis, charged colloidal particles migrate near the anode on the template surface, releasing electrons and depositing in an insoluble state. This forms the desired paint film.
4. Electroosmosis: Under an electric field, while the solid phase remains static, the liquid phase moves. This process drives water out of the paint film, resulting in a dense, high-resistance paint film with very low water content, making it nearly impervious to current.
5. For instance, iron red epoxy electrophoresis paint: The system uses modified epoxy resin, butanol, ethanolamine, talc, and iron red substances. When mixed with distilled water and exposed to a DC electric field, it separates into positively charged cations and negatively charged anions, undergoing complex physical, chemical, colloidal, and electrochemical transformations.
Electrophoretic coating offers rapid construction speed and facilitates mechanized, automatic continuous operation. This reduces labor intensity while ensuring uniform paint film with strong adhesion. It is particularly effective for coating parts that are challenging for traditional methods, like the welding seams of fascia plates.
With a paint utilization rate of 90%-95%, electrophoretic paints, using water as a solvent, are non-combustible, non-toxic, and user-friendly.
The dried paint film after electrophoresis boasts exceptional adhesion, with superior rust, corrosion, and weather resistance compared to ordinary paints and conventional application methods.
Our paint spraying line automates surface spraying, adorning products with desired colors or decorations, significantly reducing manual labor. The line features rapid spraying speeds, uniform application, high efficiency, low energy consumption, and increased production capacity. The innovative up and down conveying system includes an auxiliary automatic leveling device for different material lengths, ensuring fully automated process control.
1. High-speed, uniform spraying, high efficiency, low energy consumption, and increased output – achieving 4-5 times the productivity of manual application.
3. The quick color change system can be customized to meet customer requirements, significantly reducing gun washing time during color changes and improving equipment utilization.
4. Centralized control ensures ease of operation and maintenance.
5. The upper and lower conveying track system is tailored for varying material lengths, equipped with an auxiliary lowering automatic leveling device for fully automated control, ensuring effortless and smooth operation.
6. With our extensive expertise in the painting process, we've meticulously designed the entire painting line to ensure simplicity and smoothness. User-friendly operation procedures enable quick and efficient performance by workers.
7. Depending on the product's size and shape, the spray gun angle is automatically adjustable for optimal coverage.
Our powder spraying line is engineered for superior performance in applying paint and plastic treatments on workpiece surfaces. It seamlessly integrates with transportation systems like suspension conveyors, electric rail trolleys, and ground conveyors to streamline operations.
Key components of our powder spraying line include a state-of-the-art powder spraying system, advanced pretreatment equipment, precision painting equipment, high-efficiency oven, robust heat source system, sophisticated electric control system, and a reliable suspension conveyor chain. The process flow encompasses: pre-treatment, powder coating, heating, and curing stages.
Unmatched Advantages of Automatic Powder Spraying Equipment.
1. Utilizing automatic powder spraying equipment not only significantly reduces labor costs but, more importantly, enhances product quality and ensures its stability. This facilitates smooth and stable mass production, effectively resolving issues related to productivity shortfalls.
2. During the spraying construction process, automatic spraying equipment emits no irritating odors, thereby preventing environmental pollution and safeguarding the health of operators, both physically and mentally.
3. With automatic powder spraying equipment, the initial powder utilization rate reaches an impressive 70%-80%, with coating thicknesses ranging from 60-150 microns. Additionally, the system allows for powder recycling, achieving a stunning coating utilization rate of 90%-98%. This ensures a robust and thicker single coating.
4. The powder coating applied by automatic powder coating equipment is entirely solvent-free.
5. After curing, the powder coating boasts high plumpness and soft color. Due to the absence of solvents, it effectively prevents pinholes and bubbles during curing. As a solid coating, it guarantees no leakage or evaporation during transportation.
Q1. What is your terms of packing?
A: Generally, we meticulously pack our goods using thicker bubble paper to ensure maximum protection. Certain items receive the added security of carton packaging.
Q2. What are your terms of payment?
A: We accept T/T payments, with 30% as a deposit for production, and the remaining 70% balance due before delivery. To assure you of quality, we will provide photos of the products and their packaging prior to you paying the balance.
Q3. What are your terms of delivery?
A: Our standard quotation is based on FOB Qingdao. However, we are flexible and also accommodate terms like EXW, FOB, CFR, CIF, DDU, to suit your needs.
Q4. How about your delivery time?
A: Our delivery timeline is primarily project-dependent due to the customized nature of our products. If your voltage requirements differ from the standard 380V/3PH/50Hz, the delivery time may extend due to the need for 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 or specific requirements. Additionally, our experienced team can create detailed drawings for you.
Q6: How do you maintain a long-term and positive business relationship with your clients?
A1. We ensure our clients' satisfaction by maintaining superior quality and offering competitive prices, thereby maximizing their benefits.
A2. We treat every customer with the utmost respect, considering them as friends. Our commitment is to sincere business practices and fostering genuine friendships,
regardless of their origin or background.
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