Electrophoretic coating is a revolutionary technology where the painted object is submerged in water-soluble paint, serving as the anode (anodic electrophoresis). A corresponding cathode is configured, and a direct current is applied between the two poles. This process ensures an even layer of paint is meticulously applied to the object, driven by the powerful physical and chemical effects of the electric current.
The process flow for applying electrophoretic coating to general metal surfaces involves several precise 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 step ensures optimal surface preparation and coating quality.
Electrophoretic coating encompasses four integral processes that occur simultaneously, ensuring optimal coating performance.
1. Electrophoresis: Under the influence of a DC electric field, positively and negatively charged colloidal particles migrate towards their respective oppositely charged electrodes. This phenomenon, also known as swimming, facilitates the even distribution of the particles.
2. Electrolysis: Redox reactions occur at the electrodes, resulting in oxidation and reduction phenomena at the respective electrodes, ensuring thorough coating formation.
3. Electrodeposition: Due to electrophoresis, charged colloidal particles move towards the anode, release electrons upon reaching the template surface, and deposit in an insoluble state. This crucial step results in the formation of a robust paint film through precipitation.
4. Electroosmosis: In an electric field, the solid phase remains stationary while the liquid phase moves. This movement expels water from the paint film, ultimately forming a dense, low-water-content film with high resistance, nearly impervious to current.
5. Iron red epoxy electrophoresis paint example: This system involves modified epoxy resin, butanol, ethanol amine, talc, and iron red components. Mixed with distilled water, the paint separates into positively charged cations and negatively charged anions under a DC electric field, undergoing a complex series of physical, chemical, colloidal, and electrochemical transformations.
Electrophoretic coating boasts rapid construction speeds and supports mechanized, automated, continuous operations. This reduces labor intensity and yields a uniform, highly adhesive paint film. Even challenging areas, such as the seams of fascia plates, receive a smooth, even coat that general methods cannot achieve.
With a paint utilization rate of 90%-95%, electrophoretic paint is highly efficient. Utilizing water as a solvent, it offers the added benefits of being non-combustible, non-toxic, and easy to handle, making it an ideal choice for various applications.
Paint films formed through electrophoresis exhibit excellent adhesion. They surpass ordinary paints and general coating methods in rust resistance, corrosion resistance, and weather durability, ensuring a superior finish.
Our state-of-the-art paint spraying line is meticulously engineered to automatically coat product surfaces, imparting vibrant colors or decorative finishes with unparalleled precision. Shandong Bonita Machinery Co. Ltd's innovative design ensures rapid spraying speed, uniform application, superior efficiency, and minimized energy consumption, significantly boosting output. The sophisticated up-and-down conveyance system includes an automatic leveling device to handle diverse material lengths, with fully automated process control.
1. Experience blazing fast speeds, consistent spraying, exceptional efficiency, reduced energy consumption, and remarkable output—achieving up to 4-5 times the productivity of manual labor.
3. Our customizable quick color change system is tailored to client specifications, drastically reducing gun cleaning time during color transitions, thus maximizing equipment utilization.
4. Centralized control interface simplifies operation and maintenance, ensuring seamless management and enhanced user convenience.
5. The innovative upper and lower conveying track system accommodates varying material lengths with ease. The auxiliary automatic leveling device ensures smooth, fully automated handling, enhancing operational comfort and efficiency.
6. Leveraging years of painting process expertise, our painting line is designed for streamlined simplicity and smooth operation. User-friendly procedures facilitate quick execution by workers.
7. The angle of the spray gun can be automatically adjusted to match the size and shape of the product, ensuring optimal coverage and efficiency.
Our advanced powder spraying line is ideal for paint and plastic applications on workpiece surfaces. It integrates seamlessly with delivery systems such as suspension conveyors, electric rail trolleys, and ground conveyors, forming a cohesive operation.
The comprehensive powder spraying line comprises essential components: powder spraying system, pretreatment equipment, painting apparatus, oven, heat source system, electric control system, and suspension conveyor chain. The process flow is systematically divided into pretreatment, powder coating, and heating and curing stages.
Advantages of Automatic Powder Spraying Equipment
1. Utilizing automatic powder spraying equipment not only reduces labor costs but also significantly enhances product quality. It ensures consistent quality, facilitating large-scale, stable production and resolving productivity challenges.
2. Automatic spraying equipment operates without emitting irritating odors, preventing environmental pollution and ensuring the health and safety of operators.
3. The initial utilization rate of powder in automatic spraying equipment can reach 70%-80%, with coating thicknesses from 60-150 microns. Recyclable powder ensures a total coating utilization rate of 90%-98%, achieving thicker coatings in a single application.
4. The solvent-free powder coating of our automatic equipment ensures a cleaner and safer application process.
5. Post-curing, powder coatings offer high gloss and vibrant colors. Absence of solvents prevents pinholes and bubbles during curing. Solid coatings eliminate leakage and evaporation during transportation, ensuring consistent quality.
Q1. What are your terms of packing?
A: Typically, we ensure our products are securely packed with thicker bubble paper for added protection. Some items are further safeguarded by sturdy cartons.
Q2. What are your terms of payment?
A: Payment is made via T/T, with 30% required as a deposit for production, and the remaining 70% balance to be paid before delivery. We will provide detailed photos of the products and their packaging before you make the final payment.
Q3. What are your terms of delivery?
A: Our standard quotation is based on FOB Qingdao, but we are flexible and also accept EXW, CFR, CIF, DDU.
Q4. What is your delivery time like?
A: Delivery times vary depending on the specifics of each project due to our customization process. If your required voltage differs from 380V/3PH/50Hz, additional time will be needed for custom-made motors or electrical components.
Q5. Can you manufacture products according to technical drawings?
A: Absolutely, we can produce items based on your technical drawings or specifications. Additionally, we offer to create detailed drawings for your approval.
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 gain significant benefits.
A2. We treat every customer with the utmost respect, valuing them as friends. Our aim is to build sincere business relationships and friendships,
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