Electrophoretic coating line pretreatment and electrophoresis apparatus

Abstract

The invention belongs to the technical field of coating, and relates to an electrophoretic coating line pretreatment and an electrophoresis apparatus. The electrophoretic coating line pretreatment and an electrophoresis apparatus comprises a washing and degreasing system, an electrophoresis system and an ultrafiltration cleaning system which are connected; the washing and degreasing system comprises a hot water tank, a degreasing tank, a washing tank, a vitrification tank and a pure water tank which are connected in sequence, and the electrophoresis system comprises an electrophoresis tank and an electrophoresis transfer tank; the ultrafiltration cleaning system comprises a primary ultrafiltration cleaning tank, a secondary ultrafiltration cleaning tank and a third-time ultrafiltration cleaning tank which are sequentially connected; and braced chains for hanging workpieces and moving in the direction from the washing and degreasing system to the ultrafiltration cleaning system are arranged above the washing and degreasing system, the electrophoresis system and the ultrafiltration cleaning system. An electrophoretic coating with the good corrosion resistance can be obtained; and after a coated object obtained after electrophoretic coating is cleaned through ultrafiltration, the appearance quality of an electrophoresis film is improved, and paint film defects of redissolution, secondary current ripples and the like can be prevented.

Description

technical field [0001] The invention belongs to the technical field of coating, and relates to an electrophoretic coating line pretreatment and an electrophoretic device. Background technique [0002] Auto parts are a major branch of the auto industry, which are obviously different from other mechanical products in terms of product structure, function, and working conditions. Therefore, its production process has its own characteristics. Electrophoretic coating, as one of the four major processes in the manufacture of auto parts alongside design, processing, and assembly, covers the vast majority of parts in the auto industry that require electrophoretic coating. However, compared with design, processing, and assembly, the attention and investment in technology and manpower of auto parts coating are relatively small; compared with other industries, the development of auto electrophoretic coating is relatively slow in my country, and most of them rely on imports. Most of my...

AI Technical Summary

Problems solved by technology

This solution cannot completely remove the oil stain on the surface of the workpiece, so that the workpiece can be cleaned well, so the electrophoretic paint coating with good corrosion resistance cannot be obtained.

Images