Email Us

Methods and Characteristics of Electrophoretic Metal Coating

Methods of Electrophoretic Metal Coating


Due to the different nature of electrophoretic metal coating itself, it is divided into two kinds: anodic electrophoretic metal coating and cathodic electrophoretic metal coating.


The functional group of anodic electrophoretic coating contains hydroxyl group, and after neutralisation with organic amine or alkali, it is water-soluble or water-dispersible, and dissociates into negatively-charged particles in water, which are deposited with the coated object as the anode in electrophoretic metal coating, which is called anodic electrophoretic metal coating.



Characteristics of Electrophoretic Metal Coating


Compared with electrostatic spraying and powder coating, electrophoretic metal coating has very significant features:


The utilisation rate of the coating is very high, generally above 95%, such as using ultra-filtration device for recovery, the utilisation rate can be as high as 98%.


The thickness of the coating film is uniform and the bonding force is strong; it is easy to get the film thickness of uniform target by adjusting the power. Relying on the choice of electrophoretic paint varieties and adjusting the parameters of the swimming coating process, unlike the dip method, the coating film between the gaps does not produce the phenomenon of "dissolving off" during drying.


High film hardness, generally up to 3H-4H (pencil hardness tester).


good penetration, in the parts of the inner cavity, weld can be evenly coated; so that spraying, dip coating and other painting method can not paint the parts and paint difficult to enter the parts can be coated with paint, and the film between the gaps in the drying will not be washed away by the steam, so that the workpiece of the inner cavity, welds, edges and other places of the corrosion resistance is significantly improved.


The anti-corrosion performance is very good, if the film thickness is more than 25μm, the neutral salt spray test can reach more than 500h, and no obvious corrosion will occur.


The appearance of electrophoretic coating film is good, it is not easy to droop and does not produce the phenomenon of hanging (hanging paint). The water content of the coating film obtained from electrophoretic metal coating is less, and the solvent content is also less, so it will not produce the disadvantages such as flow marks, dissolved drop, and paint accumulation in the drying process as other paints do, and the drying time can be short, and it can be directly put into the high temperature drying.


Due to the use of water-soluble coatings, non-combustible, safety is greatly improved, the operator's health hazards.


It reduces the pollution to the environment, and the pollution to the air and water is very small; compared with other water-soluble coatings, the solvent content is less and due to the low concentration, the solvent content is low again, and it is less polluting to the water quality and the atmosphere, and the electrophoretic coating adopts the UF and RO devices to realise the fully closed washing after electrophoresis, which can greatly reduce the amount of wastewater treatment.


Automated production can be realised and production efficiency can be improved; it is possible to realise production line from pre-treatment of paint to drying of electrophoretic primer, which is suitable for large quantity of continuous production in flowing water.


It can be combined with electroplating, so that the metal surface can get all kinds of coloured coating film with strong sense of metal, and the anti-corrosion and use functions become more perfect, which promotes the development of surface treatment technology.

Related CNC Machining Services
Related News of CNC Machining
  • CNC Machine vs 3D Printer: A Comprehensive ComparisonCNC Machine vs 3D Printer: A Comprehensive ComparisonNovember 6, 2023​As the proud owner of Richconn, a CNC machining service provider, I understand the importance of choosing the right manufacturing technology for your production needs. The decision between CNC machines and 3D printers can be a daunting one, and that's why I'm here to provide you with a comprehensive comparison to help you make an informed choice.view
  • Comparison of 7075 Aluminum Alloy vs 6061 Aluminum AlloyComparison of 7075 Aluminum Alloy vs 6061 Aluminum AlloyNovember 27, 2023​Aluminum alloy is a widely used metal material with the advantages of light weight, high strength, corrosion resistance and recyclability. There are many types of aluminum alloys, and different alloying elements and heat treatment processes affect the properties and uses of aluminum alloys.view
  • How Are Tolerances in Machining Created?How Are Tolerances in Machining Created?October 26, 2023​Parts in the processing process, due to various reasons, processing and manufacturing of parts size can not be exactly the same as the size of the parts drawing design, the degree of deviation between the actual geometric parameters and the ideal geometric parameters for the parts processing error.view
  • Rubber: Full Analysis of Materials, Processing and Applications (2023 Edition)Rubber: Full Analysis of Materials, Processing and Applications (2023 Edition)September 25, 2023In this comprehensive guide, explore the world of Rubber: Materials, Processing, and Applications. From its origins to modern uses, we will delve into the fascinating world of rubber.view
  • Affordable 3D Printing Service: Tips for Cost-Effective SolutionsAffordable 3D Printing Service: Tips for Cost-Effective SolutionsSeptember 1, 2023Whether you're an entrepreneur seeking rapid prototyping or a hobbyist looking to bring your creative ideas to life, 3D printing service offers a world of possibilities. However, have you ever tho...view
  • 6 Benefits of Partnering With a Trusted CNC Company6 Benefits of Partnering With a Trusted CNC CompanySeptember 13, 2023Why choose a CNC company to partner with? Let’s explore the advantages of partnering with a CNC company for precision machining and top-quality parts.view
Tel
+86-0755-28025755
Address
1212, Zehua Building, Intersection of Longhua Meilong Road and Donghuanyi Road, Songhe Community, Longhua Street, Longhua District, Shenzhen, GuangDong, China
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Visit our cookie policy to learn more.
Reject Accept