| abstract |
The invention discloses a silver-copper oxide sheet-like electrical contact and a preparation method thereof. First, a silver-copper oxide powder ingot is prepared, sintered and repressed, and a silver-copper oxide surface coated with a silver-copper alloy layer is obtained by hydrogen reduction. After repressing treatment, the ingot is extruded into a silver-copper oxide strip with a silver-copper alloy layer on three sides, and finally processed into a working layer of silver-copper oxide and a welding layer of The sheet electrical contacts of silver-copper alloy layer use the silver-copper alloy layer as solder, and do not need to place additional solder during the soldering process. Compared with the traditional silver oxide copper sheet electrical contacts whose welding surface is pure silver layer, the welding efficiency and welding quality can be improved; The bonding strength between the solder layers is more reliable. |