Cathodic electrophoresis coating process: 1. Pre-treatment of car body Before the car enters the electrophoresis tank, it needs to be pretreated for the body, including rust removal and paint removal. This is usually done by sand blasting machine and polishing machine. 2. Electrophoresis The car is put into the electrophoresis tank and the paint is evenly coated on the surface of the body through the electrophoresis process. In this process, the car body is connected to the positive pole of the power supply and the paint is connected to the negative pole of the power supply. Through electrophoresis, the pigment particles in the paint are deposited on the surface of the car body to form a uniform coating. 3. Washing and drying After electrophoresis is completed, the body needs to be washed and dried to remove excess paint and impurities. These steps are usually accomplished using high pressure water guns and drying equipment. 4. Coating Curing Coating curing is one of the key steps in the coating process, which uses heat to make the pigment particles in the coating adhere more stably to the surface of the body. Infrared curing ovens are usually used for this step. 5. Post-treatment Post-treatment includes inspection, painting, quality inspection and other steps to ensure that the body surface meets the quality requirements.