Why should we choose the composite contact rivet instead of solid contact?
The overall copper contact has low acid-base resistance and oxidation resistance, so the copper silver plating can improve the contact quality without increasing the cost too much; The whole silver (silver alloy) contact has good burn resistance and fusion welding resistance, low contact resistance and stable temperature rise. It is the first choice for medium and high-end contacts, but the cost is high, which is not conducive to saving resources.
The contact is based on copper and silver is composite , which can greatly save the cost (compared with the overall contact, it can save 50-75% of the silver alloy), save precious metal resources, which is also a revolution in the contact industry. Bimetal and trimetal rivets are widely used in AC contactor auxiliary contacts, relays, switches, household appliances, timers and other low-voltage appliances.