Electrophoretic coating represents a cutting-edge technology where the object to be painted is immersed in water-soluble paint, acting as the anode (anodic electrophoresis), while a corresponding cathode is established. By passing a direct current between these two poles, the paint is uniformly applied onto the object through the synergistic physical and chemical effects of the current.
The comprehensive process flow for electrophoretic coating on a general metal surface encompasses the following stages: 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 integral, simultaneous processes that ensure a high-quality finish.
1. Electrophoresis: Under the influence of a DC electric field, positively and negatively charged colloidal particles move towards the negative and positive electrodes respectively, a process also known as swimming.
2. Electrolysis: Redox reactions occur at the respective electrodes, leading to the formation of oxidation and reduction phenomena.
3. Electrodeposition: Driven by electrophoresis, charged colloidal particles move towards the anode, releasing electrons and depositing in an insoluble state. This process results in the formation of a paint film.
4. Electroosmosis: Under the electric field, the solid phase remains stationary while the liquid phase moves. This action gradually expels water from the paint film, forming a dense film with minimal water content and high resistance, through which current can barely pass.
5. For instance, Iron Red Epoxy Electrophoresis Paint: This system utilizes modified epoxy resin, butanol, ethanol amine, talc, and iron red substances. When mixed with distilled water and subjected to a DC electric field, it separates into cations and anions, undergoing a series of complex physical, chemical, colloid-chemical, and electrochemical changes.
Electrophoretic coating offers rapid construction speed with the benefits of mechanized and automatic continuous operation. This reduces labor intensity while ensuring a uniform paint film with strong adhesion. Even hard-to-coat or poorly coated areas, such as the weld seams of fascia plates, achieve a smooth, consistent finish.
The paint utilization rate is impressively high at 90%-95%. Using water as a solvent, electrophoretic paint boasts non-combustibility, non-toxicity, and ease of operation.
The dried paint film post-electrophoresis exhibits superior adhesion. Its rust resistance, corrosion resistance, and weather resistance surpass those of ordinary paints and conventional construction methods.
The paint spraying line is a sophisticated solution designed to automatically apply a chosen color or decoration to a product's surface, effectively replacing manual labor with precision automation. Developed by Shandong Bonita Machinery Co. Ltd, our paint spraying line boasts rapid spraying speed, uniform application, high efficiency, and low energy consumption, significantly boosting output. The advanced up-and-down conveying system features an auxiliary automatic leveling device to accommodate varying material lengths, ensuring fully automated process control.
1. Experience unmatched speed, uniform spraying, high efficiency, and low energy consumption. Our system delivers up to 4-5 times the output of manual labor.
3. The quick color change system can be tailored to your specifications, drastically reducing the time required for gun cleaning during color changes and enhancing equipment utilization.
4. Centralized control ensures ease of operation and maintenance.
5. Our upper and lower conveying track system is expertly engineered to handle varying material lengths, with an auxiliary automatic leveling device that streamlines the lowering process, making it both easy and comfortable.
6. Leveraging years of expertise in the painting process, our painting line is designed for simplicity and efficiency, featuring straightforward operation procedures that enable quick and effortless execution by workers.
7. The spray gun angle is automatically adjustable to suit the size and shape of the product.
Our powder spraying line is ideal for applying paint and plastic treatments to workpiece surfaces. It integrates seamlessly with various delivery systems including suspension conveyors, electric rail trolleys, and ground conveyors to facilitate continuous transportation operations.
The key components of our powder spraying line include a powder spraying system, pretreatment equipment, painting apparatus, oven, heat source system, electric control system, and suspension conveyor chain. The process flow encompasses pretreatment, powder coating, and heating and curing stages.
Advantages of our Automatic Powder Spraying Equipment:
1. Utilizing our automatic powder spraying equipment not only cuts labor costs but also significantly improves and stabilizes product quality, enabling smooth, high-volume production and addressing productivity challenges for enterprises.
2. Our automatic spraying equipment is designed to operate without emitting irritating odors, thus preventing environmental pollution and protecting the physical and mental health of operators.
3. The initial utilization rate of our automatic powder spraying equipment ranges from 70%-80%, with coating thicknesses of 60-150 microns. The powder coating is recyclable, achieving a utilization rate of 90%-98%, and allowing a single application to achieve a thicker coating.
4. The powder coating used in our automatic powder coating equipment is solvent-free.
5. Once cured, our powder coating exhibits high plumpness and soft color. The absence of solvents prevents pinholes and bubbles during curing. Additionally, as a solid coating, it avoids leakage and evaporation during transportation.
Q1. What are your terms of packing?
A: Generally, we carefully pack our goods using thicker bubble paper. In some cases, items are also packed in cartons for enhanced protection.
Q2. What are your terms of payment?
A: We accept payment by T/T, with a 30% deposit required for production and the remaining 70% balance due before delivery. We will provide you with photos of the products and packages before you settle the final payment.
Q3. What are your terms of delivery?
A: Normally, our quotation is based on FOB Qingdao, but we also accommodate terms such as EXW, FOB, CFR, CIF, and DDU.
Q4. How about your delivery time?
A: Generally, delivery time depends on the specifics of each project due to customization requirements. If your voltage specifications differ from 380V/3PH/50Hz, the delivery time may be extended to accommodate custom-made motors or electric components.
Q5. Can you produce according to technical drawings?
A: Yes, we can produce items based on your technical drawings or specific requirements. Additionally, we can create drawings for you.
Q6: How do you ensure a long-term and good relationship with your business partners?
A1. We maintain excellent quality and competitive pricing to ensure our customers benefit.
A2. We respect every customer as a valued friend and conduct business with sincerity and integrity.
We aim to build friendships regardless of where our customers come from.
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