The new type of welding contact (silver contact, gold-plated contact) is a derivative of the irregular contact strip, which adopts a composite plum blossom shaped contact and follows the high-quality production process of the irregular composite contact strip. The interlayer forms a metallurgical bond, with high bonding strength, and the surface of the electrical contact layer is a mirror surface. The thickness of the silver layer can be adjusted arbitrarily according to customer needs; Cross over use, with line contact between dynamic and static contacts, can carry a greater current load than conventional welding and rivet contacts under the same volume, thus indirectly saving the use of precious metal materials. The new welding contact has a unique processing technology, which has advantages such as high interlayer bonding strength, high surface finish, stable size, small self weight, and difficulty in bouncing. After multiple customer inspections, it has been proven that the use of the new welding contact can significantly improve product quality. Mainly used in low-voltage electrical applications such as temperature controllers, thermal protectors, switches, flash relays, universal relays, circuit breakers, controllers, etc.

Summary
The welding protrusions can be three, five, or seven, and the bottom layer of the welding can be Fe or Cu Ni alloy determined by mutual agreement between the two parties for other shapes. The top working layer can be Ag, AgSnO2, AgNi, etc. The thickness of the top working layer is within half of the top thickness.

Applicable scope
Suitable for connecting pulse welding method with contact bridge, preparing electrical contact parts, bimetallic contact bridge. The components prepared by this welding method are assembled in electrical appliances such as temperature controllers and small capacity relays.