Electrophoretic coating is a revolutionary technology where the object to be coated is immersed in water-soluble paint, set up as an anode (anodic electrophoresis), while a corresponding cathode is placed opposite. Passing a direct current between these two poles ensures an even coat by leveraging the physical and chemical properties of the current.
The typical process flow for electrophoretic coating on general metal surfaces involves several meticulous stages: Pre-cleaning → On-line → Oil removal → Washing → Rust removal → Washing → Neutralization → Washing → Phosphating → Washing → Passivation → Electrophoretic coating → Tank Cleaning → Ultra-filtration → Drying → Off-line.
Electrophoretic coating encompasses four simultaneous processes that collectively ensure a flawless finish.
1. Electrophoresis: Driven by a DC electric field, positively and negatively charged colloidal particles move towards the negative and positive directions respectively, a process also known as swimming.
2. Electrolysis: Redox reactions occur at the electrodes, leading to oxidation and reduction phenomena on the respective electrodes.
3. Electrodeposition: Colloidal particles, moving towards the anode due to electrophoresis, release electrons and deposit in an insoluble state on the template surface, forming a solid paint film.
4. Electroosmosis: Under an electric field, the solid phase remains stationary while the liquid phase moves. This results in the water within the paint film being gradually expelled, forming a highly resistant and dense paint film that is almost impermeable to current.
5. For instance, iron red epoxy electrophoresis paint involves a modified epoxy resin system with butanol, ethanol amine, talc, and iron red substances. When mixed with distilled water and subjected to a DC electric field, it undergoes complex physical, chemical, colloidal, and electrochemical transformations.
Electrophoretic coating boasts rapid construction speeds and supports mechanized and automated continuous operation, reducing labor intensity. This method ensures a uniform, strong, and smooth paint film even on difficult-to-coat areas, such as weld seams on fascia plates.
With a paint utilization rate of 90%-95%, electrophoretic paint, which uses water as a solvent, offers non-combustibility, non-toxicity, and ease of operation as significant advantages.
The dried paint film post-electrophoresis exhibits exceptional adhesion, along with superior rust, corrosion, and weather resistance compared to ordinary paints and standard application methods.
Our advanced paint spraying line automates the surface coating process, allowing for custom colors or decorations. Designed and perfected by Shandong Bonita Machinery Co. Ltd, this system offers rapid spraying speeds, uniform application, high efficiency, low energy consumption, and significantly increased output. Moreover, the up and down conveying system includes an auxiliary device for automatic leveling between long and short materials, fully controlled automatically.
1. Experience fast, even spraying with high efficiency, lower energy consumption, and 4-5 times the output of manual labor.
3. The quick color change system, customizable per customer requirements, drastically reduces gun washing times during color changes, enhancing equipment usage rates.
4. Centralized control makes operation and maintenance convenient and straightforward.
5. Our upper and lower conveying track system is designed to handle varying material lengths. The auxiliary automatic leveling device ensures seamless and comfortable lowering processes, all fully automated for precision and ease.
6. Leveraging years of expertise in painting processes, our painting line is meticulously engineered to be straightforward and efficient. The design ensures easy-to-follow procedures and rapid operation for workers, making it an ideal choice for seamless production.
7. Tailored to fit the dimensions and contours of your product, our advanced spray gun technology automatically adjusts the angle for optimal coverage, ensuring a perfect finish every time.
The powder spraying line is expertly crafted for applying paint and plastic coatings to workpiece surfaces. It integrates seamlessly with various delivery systems, including suspension conveyors, electric rail trolleys, and ground conveyors, forming a cohesive and efficient transportation operation.
The core components of our powder spraying line include a sophisticated powder spraying system, state-of-the-art pretreatment equipment, high-performance painting equipment, an efficient oven, a robust heat source system, a precise electric control system, and a reliable suspension conveyor chain. The process flow is systematically divided into pre-treatment, powder coating, heating, and curing stages for optimal results.
Advantages of Automatic Powder Spraying Equipment.
1. Utilizing our automatic powder spraying equipment not only drastically reduces labor costs but, more importantly, significantly enhances product quality. It ensures consistent quality, enabling smooth and stable mass production, effectively resolving productivity challenges faced by enterprises.
2. Our automatic spraying equipment operates without emitting irritating odors, which helps prevent environmental pollution and mitigates any detrimental effects on the physical and mental health of operators, ensuring a safer workplace.
3. The efficiency of our automatic powder spraying equipment is remarkable, with an initial powder utilization rate reaching 70%-80%. The coating thickness can vary between 60-150 microns, and powder can be recycled, boosting the overall utilization rate to an impressive 90%-98%. This ensures a thicker, more durable single coating.
4. The powder coatings used in our automatic powder coating equipment are solvent-free,
5. Post-curing, the powder coatings exhibit high fullness and rich color. The absence of solvents in the powder coating prevents the formation of pinholes and bubbles during the curing process. Moreover, as a solid coating, it remains intact and does not leak or evaporate during transportation, ensuring maximum efficiency and quality.
Q1. What is your terms of packing?
A: We usually use thicker bubble paper to pack our goods, and some items are securely packed in cartons to ensure maximum protection.
Q2. What is your terms of payment?
A: Our payment terms are T/T. Specifically, 30% of the total amount is required as a deposit for production, with the remaining 70% balance due before delivery. We will provide you with detailed photos of the products and packaging prior to the final payment.
Q3. What is your terms of delivery?
A: Typically, our quotations are based on FOB Qingdao. However, we are flexible and can also accommodate EXW, FOB, CFR, CIF, and DDU terms.
Q4. How about your delivery time?
A: Delivery time varies depending on the specific project requirements, especially since our products are customized. If your required voltage differs from 380V/3PH/50Hz, expect a longer lead time to procure custom-made motors or electrical 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, we can create detailed drawings for you.
Q6: How do you make our business long-term and good relationship?
A1. We maintain superior quality and offer competitive pricing to ensure our clients benefit the most.
A2. We treat every customer as a valued friend and approach each business relationship with sincerity and respect, regardless of their origin.
no matter where they come from.
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