Electrophoretic coating is an advanced technology where the object to be painted, acting as the anode, is immersed in a water-soluble paint solution. With a cathode in place and a direct current applied, the paint adheres evenly to the object's surface through the physical and chemical effects of the current. This method ensures a uniformly coated surface.
The detailed 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. Each stage is meticulously designed to ensure the highest quality finish.
Electrophoretic coating encompasses four simultaneous processes, each playing a critical role in achieving the perfect finish.
1. Electrophoresis: Under the influence of a DC electric field, colloidal particles charged either positively or negatively migrate towards the opposite charge, a process also known as 'swimming.'
2. Electrolysis: This involves redox reactions at the electrodes, resulting in oxidation and reduction phenomena respectively.
3. Electrodeposition: As a result of electrophoresis, charged colloidal particles move towards the anode, releasing electrons and depositing in an insoluble state to form a paint film on the template surface.
4. Electroosmosis: The electric field causes the liquid phase to move while the solid phase remains stationary. This process gradually expels the water contained in the paint film, resulting in a dense, high-resistance paint film with very low water content.
5. Taking iron red epoxy electrophoresis paint as an example: The paint system comprises 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 physicochemical and electrochemical transformations.
The construction speed of electrophoretic coating is notably fast, enabling mechanized and automatic continuous operation. This reduces labor intensity and ensures a uniform paint film with strong adhesion. Even areas challenging to coat by traditional methods, such as welding seams, achieve a smooth and even finish.
With a paint utilization rate of 90%-95%, electrophoretic paint stands out for its high efficiency. Using water as a solvent, it offers advantages such as non-combustibility, non-toxicity, and ease of operation.
The dried paint film formed post-electrophoresis boasts superior adhesion and enhanced rust, corrosion, and weather resistance compared to ordinary paints and conventional application methods.
Our automated paint spraying line revolutionizes the process by applying the desired color or decoration to product surfaces quickly and uniformly. Designed and developed by Shandong Bonita Machinery Co. Ltd, this line ensures fast spraying speeds, high efficiency, low energy consumption, and increased output. The up and down conveyor system features an automatic leveling device, fully controlled automatically, accommodating both long and short materials.
1. Experience fast, uniform spraying, high efficiency, low energy consumption, and high output—4-5 times more productive than manual labor.
3. Our customizable quick color change system meets customer requirements, significantly reducing gun washing time and improving equipment utilization rates.
4. Centralized control makes operation and maintenance convenient and straightforward.
5. The sophisticated upper and lower conveying track system is tailored for varying material lengths. The auxiliary lowering automatic leveling device ensures fully automated and effortless material handling.
6. With years of experience in the painting process, our expertly designed painting line ensures operations are simple, smooth, and efficient. The streamlined procedures allow for quick and easy operation by workers, enhancing productivity and reducing downtime.
7. Our advanced spray gun technology automatically adjusts the angle according to the size and shape of the product, ensuring optimal coverage and a flawless finish every time.
The powder spraying line is expertly designed for applying paint and plastic treatments to workpiece surfaces. It seamlessly integrates with delivery machinery such as suspension conveyors, electric rail trolleys, and ground conveyors to form a cohesive and efficient transportation operation.
The main components of our powder spraying line include a sophisticated powder spraying system, comprehensive pretreatment equipment, high-quality painting equipment, an efficient oven, a reliable heat source system, an advanced electric control system, and a durable suspension conveyor chain. The process flow is meticulously divided into pre-treatment, powder coating, heating, and curing stages.
Discover the unmatched advantages of our automatic powder spraying equipment.
1. Utilizing our automatic powder spraying equipment not only drastically reduces labor costs but also significantly enhances product quality. It ensures stable production of large quantities, providing a complete solution to the challenge of low productivity within enterprises.
2. Our automatic spraying equipment operates without producing any irritating odors, preventing environmental pollution and safeguarding the physical and mental well-being of operators, thus contributing to a healthier workplace.
3. The first-time utilization rate of our automatic powder spraying equipment reaches an impressive 70%-80%, with coating thickness ranging from 60-150 microns. Additionally, the powder coating is recyclable, boosting the utilization rate to an outstanding 90%-98%. A single coating application achieves a thicker, more durable finish.
4. The powder coating used in our automatic equipment is solvent-free, promoting a safer and more eco-friendly operation.
5. Once cured, our powder coating exhibits high plumpness and soft color. Its solvent-free nature prevents the formation of pinholes and bubbles during curing. Being a solid coating, it remains intact and stable during transportation, minimizing leakages and evaporation.
Q1. What are your terms of packing?
A: Generally, we thoughtfully pack our superior goods with thicker bubble paper. Some of the items may also be securely packed in sturdy cartons.
Q2. What are your terms of payment?
A: We accept payment by T/T, with 30% required as a deposit for production and the remaining 70% balance before delivery. To ensure your complete satisfaction, we will provide photos of the products and packages before you pay the balance.
Q3. What are your terms of delivery?
A: Typically, our quotations are based on FOB Qingdao. However, we are flexible and also accept EXW, FOB, CFR, CIF, and DDU terms.
Q4. What is your delivery timeline?
A: Generally, the delivery time varies based on the project since our equipment is customized. If your voltage requirement differs from 380V/3PH/50Hz, the delivery time will be extended to accommodate custom-made motors or electric components.
Q5. Can you produce according to technical drawings?
A: Absolutely, we can manufacture products based on your technical drawings or specific requirements. Additionally, we can create detailed drawings for you.
Q6: How do you ensure a long-term and positive business relationship?
A1. We maintain exceptional quality and competitive pricing to ensure the maximum benefit for our valued customers.
A2. We value and respect every customer as our friend, conducting business with sincerity and forging lasting friendships,
no matter where they come from.
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