Aktivní norma | Vydána: 01.04.2023

ASTM B692-18(2023)

Standard Specification for 75 % Silver-25 % Graphite Sliding Contact Material

Dostupné jazyky: Anglicky

Dostupné provedení: Online zabezpečené PDF, Tištěné

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Podrobné informace

Označení: ASTM B692-18(2023)

Datum vydání: 01.04.2023

Stran: 2

Země: Americká technická norma

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Anotace

This specification defines the criteria for the chemical composition and other requirements (including physical properties, microstructure, superficial hardness, and specific resistance ) for silver-graphite brushes for sliding electrical contacts. The percentage of silver, graphite, ash in graphite, and total metal impurities are prescribed. The minimum acceptable values for the physical properties such as density, determined by measurement and weight method, and shear strength are given. Typical Rockwell hardness and specific resistance for the material are also specified.

Keywords:
electrical contacts, graphite, silver, sliding contacts,, ICS Number Code 77.120.99 (Other non-ferrous metals and their alloys)

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