SILVER-BASED ELECTRIC CONTACT MATERIAL AND PREPARATION METHOD THEREFOR

The present invention provides a silver-based electric contact material and a preparation method therefor. Silver, tin oxide, indium oxide and tellurium oxide are mixed and then 5 sprayed to obtain the silver-based electric contact material. Density of the silver-based electric contact material prov...

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Bibliographic Details
Main Authors ZHIBIAO TU, NA XUE, XINXING SHI, LING SHAO, LIU ZHU, JITANG ZHANG, WEIWEI LI
Format Patent
LanguageEnglish
Published 03.06.2024
Subjects
ALLOYS
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
RELAYS
SELECTORS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:The present invention provides a silver-based electric contact material and a preparation method therefor. Silver, tin oxide, indium oxide and tellurium oxide are mixed and then 5 sprayed to obtain the silver-based electric contact material. Density of the silver-based electric contact material provided by the present invention reaches 97.28%, resistivity is as low as 2.51 uQcm, hardness reaches 103 HV, arc energy reaches 545 mJ (1000 times), and welding force reaches 38 g (1000 times). At spraying temperature of the present invention, volatilization of the silver is greatly reduced, and excessive heat is not 10 transferred to a surface of a copper matrix, which overcomes a high-temperature deformation phenomenon of a copper base, no high-temperature heat source is needed in a spraying process, which greatly reduces an apparatus cost, and improves safety, and the present invention is suitable for online processing.
Bibliography:Application Number: NL20232035223