Ningbo Yong Wei Electronics Co., Ltd.
Add：No.8 Xinheng Third Road, private industrial park, Cicheng Town, Jiangbei District, Ningbo
Most relay actuators are contact systems. Through its "pass" and "break" to complete a certain control function. Contact fault system general contact overheating, wear, welding etc.. The main reason is caused by overheating of the contact capacity is not enough, the contact pressure is not enough, the surface oxidation or not clean; wear is mainly caused by the contact capacity is too small, high temperature oxidation arc contact metal; welding is mainly caused by the arc temperature is too high, or severe beating contacts. The repair sequence of contacts is as follows:
(1) open the outer cover and check the contact surface.
(2) if the contact surface oxidation, of silver contacts can be repaired, the shiny copper contact available files flat or with a knife gently scraping the surface of the oxide layer.
(3) if the contact surface is not clean, can be cleaned with gasoline or carbon tetrachloride.
(4) if the contact surface burns on contact singeing traces of silver can be renovation, renovation of the copper contacts available smooth file or a knife. Do not allow the use of abrasive cloth or paper to repair, to avoid residual sand, causing poor contact. (5) if the contact welding, the contact should be replaced. If the contact capacity is too small, it should be replaced by a large capacity relay. Relay manufacturers
(6) if the contact pressure is not enough, the spring should be adjusted or replaced to increase the pressure. If the pressure is not enough, the contact should be replaced.