Standard Guide for Silver-Tin Oxide Contact Material

Importancia y uso:

4.1 The methods for manufacture (proprietary or otherwise) of these materials vary significantly among suppliers, and these methods influence such properties as arc erosion, contact resistance, and tendency to weld in service. Since the performance of contacts in a device depends on numerous factors outside the contact itself (opening speed, closing speed, contact pressure, contact bounce, environmental variations, assembly technique and variations, etc.) this guide cannot ensure performance control in the application. As part of the qualification on initial samples it is recommended that the user electrically test the materials in a functional manner for all devices applicable to the material’s use. This guide will provide a means for the contact manufacturer and contact user to reach agreement on the details of material to be supplied for a specific use and how to provide reasonable assurance that future lots will be similar in properties and microstructure to the initial test of sample contacts supplied.

Subcomité:

B02.05

Volúmen:

02.04

Número ICS:

77.120.99 (Other non-ferrous metals and their alloys)

Palabras clave:

contact; internal oxidation; powder metallurgy; silver; silver-tin oxide; tin oxide; wrought;