There are several main ways to degrease electroplating:
Author: Robby
Chemical degreasing: using chemical reagents and metal surface oil pollution chemical reaction, dissolve or emulsify it. This way is easy to operate, simple equipment, low cost, but need to pay attention to chemical degreasing agent may contain strong corrosive substances, the use of the concentration and temperature need to be strictly controlled to avoid damage to the metal substrate. Chemical degreasing is suitable for metal parts with complex shape and serious oil contamination. It is necessary to choose suitable degreasing agent according to the metal material and oil contamination type, and carry out sufficient cleaning and neutralization treatment to ensure that the metal surface is clean and free of residue.
Mechanical degreasing: Remove the oil contamination on the metal surface by physical means, such as sand blasting, shot blasting, brushing, etc.. This way of degreasing thoroughly, fast processing speed, but may cause scratches or damage to the metal surface, so need to be careful operation. In mechanical degreasing, it is necessary to choose the appropriate degreasing equipment and method according to the metal material and the type of oil contamination, and at the same time, control the pressure and speed of the degreasing process to avoid unnecessary damage to the metal surface, and carry out adequate cleaning and inspection.
Solvent degreasing: use organic solvents to dissolve the oil contamination on the metal surface. This method of degreasing fast, easy to operate, but the use of organic solvents flammable and explosive, need to pay strict attention to fire and explosion-proof measures. Solvent degreasing, need to choose the appropriate solvent and degreasing equipment, to ensure that the operation of the place is well ventilated, and strictly comply with the fire and explosion regulations. After degreasing, adequate cleaning and drying should be carried out to ensure that the metal surface is clean and free of residue.
Electrode degreasing: The workpiece is used as cathode or anode, electrolyzed in alkaline cleaning solution to remove grease and other dirt. This method is non-toxic, inexpensive, better degreasing effect, and easy to manage, simple equipment, so it is widely used.
Each of these methods has its own characteristics and is suitable for different application scenarios and metal surface treatment needs. When choosing a degreasing method, you need to consider factors such as the type of metal, the degree of oil contamination and the treatment efficiency