Introduction of connector terminal plating process

The purpose of connector terminal plating: To prevent oxidation of connector terminal materials, reduce contact resistance, increase solder resistance, and increase wear resistance, it directly affects the electrical conduction of the circuit and the life of the connector. Introduction to the plating process of the connector terminal a. Unloading: Confirm the quality of the incoming stamping materials, and insert the terminals to be plated into the warming belt of the electroplating machine. b. Chemical degreasing: Cathodic electrolytic degreasing is used for the purpose of degreasing. c. Electrolytic degreasing: The cathode electrolytic degreasing method is adopted for the purpose of degreasing. d. The purpose of washing with water is to wash away the alkaline degreasing liquid stuck to the material belt, so as not to bring it into the next station and neutralize excessive acid. e. Acid activation: the purpose is to remove the surface oxides of the material and neutralize the alkali that is too degreasing. f. Secondary washing: wash away the sulfuric acid on the surface of the material. g. Plating: The purpose is to make the bottom and get the protective performance. Sn/Pb must be plated and covered immediately, otherwise it is easy to be oxidized and the guide wheel cannot spark, otherwise it is easy to peel off and produce pinholes. h. Recovery water washing: the purpose is to wash and recover the Ni taken out. i. Washing: The purpose is to prevent Ni from being brought into the lower station. j. Sn/Pb plating: purpose to improve terminal solderability. k. Post-treatment: including hot water washing → blunt water washing → drying → drying, the purpose is to remove the chemical solution attached to the surface of the terminal, so that the terminal is in a dry environment, and the connector terminal is prevented from corrosion and discoloration. l. Receipt: confirm the quantity and quality, and paste the label. n. The development of the warehousing society is inseparable from the wide application of the stamping electronics industry, the rapid technological update, and the innovation of the connector terminal technology in the electrical stamping products. Welcome new and old customers to call or write to negotiate. Dongguan Precision Electronics Co., Ltd. The company shares achievements with you, and win-win cooperation! Precise contact information: Precise wish you all a prosperous business and all the best. If you want to know more about the news, you can scan the QR code below and follow the official account. , Committed to the world's most professional precision stamping processing plant for electronic parts