ASTM B634-14a(2021)

Podrobné informácie

Označenie: ASTM B634-14a(2021)

Dátum vydania: 01.10.2021

Stránok: 5

Krajina: Americká technická norma

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Anotácia

This specification covers the requirements for electrodeposited rhodium coatings for engineering applications, usually employed for their corrosion resistance, stable electrical contact resistance, wear resistance, reflectivity, and heat resistance. Coating shall be classified based on their thickness. Specimens shall undergo preparatory preplating procedures such as surface cleaning and stress relief treatment, as well as post-plating embrittlement relief process. Coatings shall be sampled, tested, and conform accordingly to specified requirements as to purity, appearance, adhesion, hydrogen embrittlement, reflectivity, and thickness (to be measured either nondestructively by beta backscatter method or X-ray fluorescence, or destructively by microscopical cross sectioning method).


Keywords:
connectors, contacts, electrical connectors, electrical contacts, engineering coatings, reflectors, relays, relay switches, rhodium, rhodium coatings, rhodium electrodeposits, rhodium platings,, ICS Number Code 25.220.40 (Metallic coatings)