Electrophoretic coating is an advanced technology where the object to be painted is immersed in water-soluble paint as the anode (anodic electrophoresis) while the cathode is set up to correspond. By passing a direct current between these poles, the paint is uniformly coated on the object through a combination of physical and chemical effects of the current.
The comprehensive process flow for electrophoretic coating on a general metal surface includes: 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.
Electrophoretic coating processes encompass four simultaneous procedures.
1. Electrophoresis: In the presence of 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 the formation of oxidation and reduction phenomena on the respective electrodes.
3. Electrodeposition: Influenced by electrophoresis, charged colloidal particles migrate towards the anode, releasing electrons and depositing in an insoluble state, forming a paint film through precipitation.
4. Electroosmosis: Under the influence of an electric field, while the solid phase remains stationary, the liquid phase moves. This process causes the water within the paint film to be gradually expelled, ultimately resulting in a dense paint film with very low water content and high resistance, preventing current passage.
5. Taking iron red epoxy electrophoresis paint as an example: the electrophoresis paint system includes modified epoxy resin, butanol, ethanol amine, talc, and iron red among other components. When mixed with distilled water and subjected to a DC electric field, the mixture separates into positively charged cations and negatively charged anions, undergoing a series of complex physical, colloid, and electrochemical changes.
The construction speed of electrophoretic coating is remarkably fast, enabling mechanized and automated continuous operations. This reduces labor intensity, provides a uniform paint film with strong adhesion, and delivers an even and smooth finish even on hard-to-coat areas like welding seams.
The paint utilization rate is impressively high at 90%-95%. As electrophoretic paint uses water as a solvent, it offers advantages including non-combustibility, non-toxicity, and ease of operation.
After electrophoresis, the dried paint film demonstrates excellent adhesion and superior rust, corrosion, and weather resistance compared to ordinary paints and conventional methods.
Our paint spraying line automates the surface painting process, applying the desired color or decoration with speed and efficiency. Developed by Shandong Bonita Machinery Co. Ltd, it features rapid spraying speed, uniform application, high efficiency, and low energy consumption, significantly increasing output. The innovative up and down conveying system includes an auxiliary automatic leveling device for varying lengths of materials, with the entire process controlled automatically.
1. The system offers fast speed, uniform spraying, high efficiency, low energy consumption, and high output—4-5 times more than manual processes.
3. A quick color change system can be designed as per customer requirements, greatly reducing gun washing time when changing colors and enhancing equipment utilization.
4. Centralized control for ease of operation and maintenance.
5. The upper and lower conveying track system, designed for varying long and short materials, includes an auxiliary automatic leveling device for fully automatic process control, making lowering easy and efficient.
6. Leveraging years of expertise in the painting process, our painting line is meticulously designed for simplicity and efficiency, ensuring straightforward operation procedures and rapid task execution by workers.
7. Our innovative system automatically adjusts the spray gun angle based on the product's size and shape, guaranteeing optimal coating coverage.
Our advanced powder spraying line is perfect for applying paint and plastic treatments to workpiece surfaces. It seamlessly integrates with delivery machinery like suspension conveyors, electric rail trolleys, and ground conveyors to form a comprehensive transportation operation.
The principal components of our powder spraying line include: a powder spraying system, pretreatment equipment, painting equipment, an oven, a heat source system, an electric control system, and a suspension conveyor chain. The process flow is divided into pre-treatment, powder coating, heating, and curing stages.
Unparalleled Advantages of Automatic Powder Spraying Equipment.
1. Utilizing our automatic powder spraying equipment significantly reduces labor costs while markedly enhancing product quality and ensuring its stability. This facilitates smooth and stable high-volume 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 physical and mental health of operators.
3. Our automatic powder spraying equipment boasts an initial powder utilization rate of 70%-80%, achieving a coating thickness of 60-150 microns. Moreover, the powder coating is recyclable, resulting in an impressive overall coating utilization rate of 90%-98%. Each application yields a robust and thicker coating.
4. The powder coatings used in our automatic powder coating equipment are solvent-free,
5. Post-curing, the powder coating from our automatic spraying equipment features high plumpness and smooth color. The absence of solvents prevents pinholes and bubbles during curing. Being a solid coating, it ensures no leakages or evaporation during transportation.
Q1. What is your terms of packing?
A: Generally, we carefully pack our goods using thicker bubble paper to ensure maximum protection. Some items are securely packed in sturdy cartons to guarantee safety during transit.
Q2. What is your terms of payment?
A: We operate on a T/T basis, requiring a 30% deposit upfront for production, with the remaining 70% balance due before delivery. We will provide comprehensive photos of the products and packaging to ensure your complete satisfaction before you make the final payment.
Q3. What is your terms of delivery?
A: Our standard quotation is based on FOB Qingdao. However, we are flexible and can accommodate EXW, FOB, CFR, CIF, and DDU terms to meet your specific needs.
Q4. How about your delivery time?
A: Delivery times vary depending on the complexity and customization of the project. If your electrical requirements differ from the standard 380V/3PH/50Hz, additional time may be needed to source custom-made motors or electric 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 offer design services to create detailed drawings for your approval.
Q6: How do you make our business long-term and good relationship?
A1. We consistently maintain superior quality and competitive pricing to ensure our customers receive the maximum benefit.
A2. We treat every customer with utmost respect, cultivating genuine business relationships and friendships, no matter where they are from.
no matter where they come from.
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