The invention belongs to the technical field of
metal surface processing, an particularly relates to an
electrophoresis technology after galvanizing. The
electrophoresis technology comprises the following steps that pre-
processing is conducted, specifically, an
alloy workpiece is sequentially subjected to oil removing, hot washing,
rust removing and cold washing, and is subjected to physical activation and chemical activation; mold manufacturing is conducted, specifically, the
alloy workpiece after activation is subjected to
galvanization and phosphorization, and then is immersed in phosphorization to conduct anodic
electrophoresis processing to obtain mold workpiece; and post-
processing is conducted, specifically, the mold workpiece is subjected to
clean water washing, cold washing and
drying to obtain an
alloy workpiece finished product. When an electrophoresis
coating is formed at the alloy workpiece, the workpiece is
cathode, and
anodic dissolution does not occur, and therefore theworkpiece surface and a phosphating film can be protected from being damaged. The alloy workpiece surface is subjected to
galvanization and phosphorization, and then the electrophoresis
coating is applied, and therefore the
metal can be protected. The paint is of high price and high quality, the anti-
corrosion performance is high, the weather-proof performance is high, and the
environmental protection performance is high.