Use of an alloy as a brazing alloy, a brazing joint for an electrical switch, an electrical switch and a method for producing a brazing joint for an electrical switch

Abstract

Embodiments of the present disclosure relate to the use of alloys as brazing alloys for electrical switch brazing joints, electrical switching brazing joints, electrical switches and methods of manufacturing electrical switching brazing joints. The alloy composition of the alloy consists of at least one element selected from each of the following Groups I and II, the balance of impurities, Ag, and at least one of Cu and Zn. Group I includes: Cd, Mn, Ni, P, Sb, Si, Sn, Ti and their oxides, the total amount is 0.5 to 45.0 wt%. Group II includes Bi, Mo, Te, W and their oxides, Cu and Zn oxides in a total amount of 0.1 to 15.0 wt%.

Description

technical field [0001] Embodiments of the present disclosure relate to the use of alloys as brazing alloys for electrical switch brazing joints, electrical switching brazing joints, electrical switches and methods of manufacturing electrical switching brazing joints. Background technique [0002] An electrical switch usually has two conducting plates (contacts). To close (break) a circuit, the contacts touch, and to open (break) a circuit, the contacts separate. Conductive strips are usually connected to an external circuit through a carrier (contact carrier). The connection between the contacts and the carrier can be achieved, for example, by brazing. [0003] The material of the contacts of the electric switch needs to meet special requirements. In addition to good contact properties, such as high arc corrosion resistance, low contact resistance, and depending on the switch type, good arc movement properties and good arc extinguishing capabilities, the contact material ...

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Problems solved by technology

[0007] However, Ag is an expensive material and applying a pure Ag backing layer requires additional processing steps during the brazing process

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