Dongguan Yinyin Hardware Products Co., Ltd. specializes in producing silver contacts, relay contacts, silver alloy contacts, in-mold riveting contact points, punching and riveting integrated contact composite contacts, shaped contacts, solder contacts, environmentally friendly contacts, Switch contacts, rivet contacts, riveting contacts.
I have read a video interview with "Chongqing Good Neighbors Building Materials General Manager - Zeng Yongling", in which he focused on such a passage:
If it is a switch, focus on the contacts, a good switch socket contact is a composite silver contact, the inferior brand contacts are only plated with a very thin layer of silver, while also looking at the thickness of the contact, the thickness of the contact The thicker and more durable; if it is a socket, it depends on the copper. Good products use bronze, and poorer products use general brass. Different from color, brass is much yellower than bronze. The advantage of bronze is that it has a good resilience, and it can be restored by inserting it many times. Generally inferior brass, copper can not be returned, making contact is not good. If the owner is not professional about the material, the easiest way is to look at the brand.
For the switch, silver alloy or pure silver contacts should be used, and the silver-copper composite material should be used as the conductive sheet to prevent the arc from causing oxidation during opening and closing. The conductive bridge of the high quality panel is made of silver-nickel-copper composite. The silver material has excellent electrical conductivity, and the silver-nickel alloy has a very strong ability to suppress arcing. The switch adopts silver-nickel alloy contacts, which can guarantee more than 100,000 times of opening and closing, far exceeding the international standard of 40,000 times.
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