Electrophoretic coating is a revolutionary technology where the object to be painted, acting as the anode, is immersed in water-soluble paint, with a corresponding cathode set up. By passing a direct current between these two poles, the paint is uniformly coated onto the object through the intricate interplay of physical and chemical reactions driven by the current.
The comprehensive process flow of electrophoretic coating on typical metal surfaces follows this sequence: Pre-cleaning → On-line Preparation → Oil Removal → Washing → Rust Removal → Washing → Neutralization → Washing → Phosphating → Washing → Passivation → Electrophoretic Coating → Tank Cleaning → Ultrafiltration → Drying → Off-line Completion.
The electrophoretic coating process typically encompasses four simultaneous stages, each contributing to the creation of an incredibly durable and uniform paint film.
1. Electrophoresis: In the presence of a direct current electric field, charged colloidal particles migrate towards oppositely charged electrodes, a process also known as swimming, ensuring an even distribution of particles.
2. Electrolysis: Distinct redox reactions occur at each electrode, leading to oxidation at the anode and reduction at the cathode, crucial for the integrity of the coating.
3. Electrodeposition: Driven by electrophoresis, colloidal particles near the anode release electrons and deposit in an insoluble state, forming a solid paint film on the template surface, ensuring uniform coverage.
4. Electroosmosis: The electric field induces movement in the liquid phase while the solid phase remains stationary. This movement expels water from the paint film, resulting in a dense, high-resistance coating that is nearly impermeable to current.
5. Taking iron red epoxy electrophoresis paint as an example: The system includes modified epoxy resin, butanol, ethanolamine, talc, and iron red substances. When mixed with distilled water and subjected to a direct current electric field, the paint separates into positively charged cations and negatively charged anions, undergoing a complex series of physical, chemical, and electrochemical processes.
Electrophoretic coating boasts a rapid construction speed and can be seamlessly integrated into mechanized and automated continuous operations. This method not only reduces labor intensity but also ensures a uniform paint film with strong adhesion, delivering even and smooth finishes on hard-to-reach or poorly coated areas, such as the seams of fascia plates.
With an impressive paint utilization rate of 90%-95%, electrophoretic paint, which uses water as a solvent, is non-combustible, non-toxic, and remarkably easy to handle. These attributes make it a highly efficient and safe painting solution.
The dried paint film formed through electrophoresis exhibits superior adhesion and offers exceptional rust resistance, corrosion resistance, and weather resistance, outperforming ordinary paints and traditional construction methods.
Our paint spraying line is designed to revolutionize surface coating by seamlessly automating the application of your preferred colors or decorations, effectively replacing manual labor. Engineered for speed and efficiency, our line boasts rapid spraying, uniform coverage, superior efficiency, and minimal energy consumption, all contributing to a substantial increase in output. The innovative up-and-down conveying system features an auxiliary automatic leveling device tailored to handle varying material lengths, ensuring a fully automated process control.
1. Experience the benefits of lightning-fast speed, uniform spraying, extraordinary efficiency, and low energy consumption, producing a remarkable output that is 4-5 times greater than that of manual methods.
3. Our quick color change system, customizable to your specific requirements, significantly reduces gun washing time during color transitions, thereby enhancing the equipment's usage rate.
4. Centralized control mechanisms provide unmatched convenience for both operation and maintenance, making the entire process effortless.
5. The advanced upper and lower conveying track system is meticulously designed to accommodate both long and short materials, featuring an auxiliary automatic leveling device for a fully automated and seamless process, making material lowering smooth and user-friendly.
6. Drawing from years of expertise in the painting process, we've crafted a painting line that is both simple and streamlined, ensuring straightforward operation protocols and quick execution for workers.
7. The spray gun angles can be automatically adjusted to perfectly match the size and shape of the product, offering unparalleled flexibility.
Our powder spraying line excels in applying paint and plastic coatings to workpiece surfaces, integrating seamlessly with transportation systems such as suspension conveyors, electric rail trolleys, and ground conveyors.
Key components of our powder spraying line include: an advanced powder spraying system, pretreatment equipment, painting apparatus, oven, heat source system, electric control system, and suspension conveyor chain. The process flow encompasses stages like pre-treatment, powder coating, heating, and curing.
Advantages of Using Automatic Powder Spraying Equipment
1. Adopting automatic powder spraying equipment significantly reduces labor costs while dramatically enhancing product quality and ensuring its stability, thereby resolving issues related to low productivity and enabling steady mass production.
2. Our automatic spraying equipment operates without emitting irritating odors, thus preventing environmental pollution and safeguarding the physical and mental health of operators.
3. The initial utilization rate of powder with our automatic powder spraying equipment can reach an impressive 70%-80%, with coating thickness varying from 60-150 microns. Additionally, the ability to recycle powder ensures a total utilization rate of 90%-98%, achieving a thicker, higher-quality coating with a single application.
4. The powder coating process in our automatic equipment is solvent-free,
5. Once cured, the powder coating exhibits high plumpness and vibrant color. The absence of solvents prevents the formation of pinholes and bubbles during curing. Being a solid coating, it avoids leakage and evaporation during transportation, ensuring durability and consistency.
Q1. What are your packing terms?
A: Typically, we ensure the utmost protection of our goods by using thicker bubble paper, and in some cases, they are securely packed in cartons.
Q2. What are your payment terms?
A: We accept payments via T/T, with 30% deposit for production and the remaining 70% balance due before delivery. Before the final payment, we will provide you with detailed photos of the products and their packaging.
Q3. What are your delivery terms?
A: Our quotations are generally based on FOB Qingdao terms. However, we are flexible and can also accommodate EXW, FOB, CFR, CIF, and DDU terms.
Q4. What is your delivery timeline?
A: Our delivery time varies depending on the project specifics since it is customized. If your required voltage differs from 380V/3PH/50Hz, expect a longer delivery time due to the need for custom-made motors or electric components.
Q5. Can you manufacture according to technical drawings?
A: Absolutely, we can produce based on your technical drawings or specific requirements. Furthermore, we can create detailed drawings for your approval.
Q6: How do you ensure a long-term and positive business relationship?
A1. We maintain excellent quality and competitive pricing to guarantee our customers' maximum benefit.
A2. We treat every customer with the utmost respect and consider them our friends. We genuinely aim to establish lasting business connections and friendships,
regardless of their geographical location.
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