我们根据《医疗器械》1981年第二期中介绍的“简易定影液提银器”的原理,用石墨作阳极,损坏的继电器接点作阴极,把它们浸在废定影液内,就能对接点重新镀银,延长继电器的使用寿命。在镀银前,接点要进行严格的清洁处理,并在接点的周围涂上一层凡士林。每次可以一个接点一镀,也可以几个一镀。镀制时间的长短,可按继电器的用 According to the principle of “Simple Fixer Silver Extractor” described in the second issue of “Medical Devices” in 1981, graphite was used as the anode, and the damaged relay contacts were used as the cathode. After immersing them in the waste fixer, the joints could be renewed. Silver plating extends the life of the relay. Prior to silver plating, the contacts must be subjected to rigorous cleaning and a layer of petroleum jelly should be applied around the contacts. Each contact can be plated one at a time, or it can be plated several times. Plating time, according to the use of relays