Standard Specification for Silver-Tungsten Electrical Contact Materials
NORMA vydaná dňa 1.11.2021
Označenie normy: ASTM B631-93(2021)
Dátum vydania normy: 1.11.2021
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
This specification covers electrical contact components made from silver-tungsten by powder-metallurgical procedures. The material shall conform to composition limits specified. The material shall be finished by braze alloy backing, tumbling to polish surfaces, special surface finish, silver-rich surface layer, cleaning, etc. Chemical analysis and physical test shall be made to conform to the specified requirements.
Keywords:
contacts, powder metallurgy, silver, silver-tungsten, tungsten, tungsten-silver,, ICS Number Code 77.120.99 (Other non-ferrous metals and their alloys)