Electrophoretic coating is a groundbreaking technology where the painted object, serving as the anode in anodic electrophoresis, is immersed in water-soluble paint. A cathode is positioned opposite to it, and a direct current flows between the two poles, ensuring the paint is uniformly applied through the physical and chemical interaction of the current. This innovative method guarantees a smooth and even coat on the painted object.
The meticulous process flow of electrophoretic coating on general metal surfaces is outlined as follows: 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. Each stage ensures superior surface preparation and coating quality.
Electrophoretic coating typically involves four concurrent processes, each contributing to the overall efficiency and quality of the coat.
1. Electrophoresis: Under the influence of a DC electric field, positively and negatively charged colloidal particles migrate towards the opposite poles, a phenomenon also known as swimming.
2. Electrolysis: This process involves redox reactions occurring at the electrodes, resulting in oxidation and reduction phenomena at the respective electrodes.
3. Electrodeposition: Driven by electrophoresis, charged colloidal particles move towards the anode, release electrons on the template surface, and precipitate in an insoluble state, forming a paint film.
4. Electroosmosis: In this phase, the solid phase remains stationary while the liquid phase moves under the electric field. This process gradually expels water from the paint film, resulting in a dense paint layer with high resistance and low water content, ultimately impervious to current.
5. Taking iron red epoxy electrophoresis paint as an example: The paint system incorporates modified epoxy resin, butanol, ethanolamine, 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 complex physical, chemical, colloidal, and electrochemical transformations.
The construction speed of electrophoretic coating is impressively swift, enabling mechanized and automated continuous operation. This reduces labor intensity and ensures a uniform paint film with strong adhesion. Even challenging areas, such as the welding seam of the fascia plate, achieve an even and smooth finish not possible with traditional methods.
With an astonishing paint utilization rate of 90%-95%, and using water as a solvent, electrophoretic paint boasts non-combustibility, non-toxicity, and ease of operation, making it a highly efficient and safe choice.
The paint film dried post-electrophoresis exhibits exceptional adhesion. Its resistance to rust, corrosion, and adverse weather conditions surpasses that of conventional paints and standard application methods.
Our state-of-the-art paint spraying line automates the surface spraying process to add desired colors or decorations, replacing manual labor with precision automation. Developed by Shandong Bonita Machinery Co. Ltd, this line offers rapid spraying speeds, uniform application, high efficiency, and low energy consumption, significantly increasing output. The system includes an advanced auxiliary automatic leveling device for handling varying material lengths, all managed by a fully automated process.
1. Exceptional speed, uniform spraying, high efficiency, low energy consumption, and increased output—4-5 times more than manual labor.
3. Our customizable quick color change system caters to specific customer requirements, greatly reducing gun-washing time during color transitions and enhancing equipment usage.
4. Centralized control system for easy operation and maintenance.
5. The upper and lower conveying track system, tailored for handling different material lengths, includes an auxiliary automatic leveling device for fully automated process control, ensuring ease and comfort during operations.
6. With our extensive experience in the painting process, Shandong Bonita Machinery Co. Ltd has meticulously designed the Advanced Powder Coating Line to ensure simplicity and seamless operation. The straightforward procedures and quick workflow empower workers to achieve optimal results with ease.
7. Our highly adaptable system allows the spray gun angle to be precisely adjusted according to the size and shape of each product, ensuring uniform and comprehensive coating coverage.
The Advanced Powder Coating Line is ideal for painting and plastic treatment on workpiece surfaces, integrating smoothly with delivery systems such as suspension conveyors, electric rail trolleys, and ground conveyors to form an efficient transportation operation.
The main components of our powder spraying line include: an advanced powder spraying system, comprehensive pretreatment equipment, state-of-the-art painting equipment, efficient ovens, a reliable heat source system, a sophisticated electric control system, and a robust 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. Our automatic powder spraying equipment not only significantly cuts down labor costs but also elevates product quality to new heights. It ensures consistent quality, facilitating smooth and stable mass production, effectively addressing productivity challenges faced by enterprises.
2. During the spraying process, our automatic equipment emits no irritating odors, thus preventing environmental pollution and safeguarding the health of operators, ensuring a safer and more pleasant working environment.
3. The first-time powder spray utilization rate of our automatic equipment can reach an impressive 70%-80%, with coating thicknesses ranging from 60 to 150 microns. Moreover, the powder is recyclable, pushing the coating utilization rate to an outstanding 90%-98%. A single application can achieve a substantial coating thickness.
4. The powder coating used in our automatic equipment is completely solvent-free, ensuring an eco-friendly and safer coating process.
5. Post-curing, the powder coating offers high plumpness and a soft color palette. The absence of solvents prevents the formation of pinholes and bubbles during curing. Additionally, as a solid coating, it eliminates leakage and evaporation during transportation, ensuring a consistent and reliable finish.
Q1. What are your packing terms?
A: Typically, we meticulously pack our goods using thicker bubble paper to ensure maximum protection. Some items are also securely packed in cartons for added safety.
Q2. What are your payment terms?
A: We require a 30% deposit by T/T for production, with the remaining 70% balance due before delivery. To keep you informed and confident, we will provide photos of the products and packaging before you settle the balance.
Q3. What are your delivery terms?
A: Our quotations are generally based on FOB Qingdao. However, we also accommodate other terms such as EXW, FOB, CFR, CIF, and DDU, tailored to your preferences.
Q4. What is your typical delivery time?
A: Delivery time is project-dependent due to our customization process. If your voltage requirements differ from the standard 380V/3PH/50Hz, please note that delivery may take longer to accommodate custom-made motors or electrical components.
Q5. Can you manufacture according to technical drawings?
A: Absolutely! We can produce based on your technical drawings or specific requirements. Additionally, we offer drawing services to meet your needs.
Q6: How do you ensure a long-term and positive business relationship?
A1. We prioritize maintaining superior quality and competitive pricing to ensure our customers receive the best value and sustained benefits.
A2. We value every customer as a friend, engaging in sincere business practices and fostering genuine relationships, regardless of their origin.
no matter where they come from.
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