Preparation method of low-gas-content silver plate

• Main Authors: MIAO RENLIANG, LIN YINGTAO, WANG BAOFENG, DAI LINTAO, LIU YINGFEI, ZHOU KEWU
• Format: Patent
• Language: Chinese; English
• Published: 02.02.2024
• 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

The invention particularly relates to a preparation method of a low-gas-content silver plate. The preparation method comprises the following steps that S1, silver powder is added into a crucible to be smelted into silver liquid; s2, a blocky silver graphite solid is added into the silver liquid, the blocky silver graphite solid is dispersed into silver graphite powder at the high temperature, and the smelting temperature is reduced and heating is conducted; and S3, casting the silver liquid into a mold, and cooling to obtain the silver plate. The blocky silver graphite leftover materials serve as a deoxidizing agent to remove oxygen in molten silver liquid, firstly, when the blocky silver graphite is placed on the surface of the high-temperature silver liquid, the blocky silver graphite is broken into silver graphite powder, the surface of the molten silver liquid is covered with the silver graphite powder, the silver graphite powder makes full contact with the silver liquid, and oxygen in the silver liquid i