Tungsten-silver alloy is a pseudo alloy composed of silver and tungsten, a binary alloy of silver and tungsten. Because tungsten has a very high melting point and silver cannot melt with each other, it cannot be produced by traditional methods. Tungsten-silver alloy must be produced by powder metallurgy.
Silver and tungsten are not miscible in either liquid or solid state. Tungsten-silver alloy can only be made into sintered materials by powder metallurgy, and extrusion can also be used. Materials close to tungsten and silver are characterized by high hardness and strong resistance to arc erosion, adhesion and welding resistance. Manufactured by powder metallurgy. Alloys containing more than 60% tungsten are mostly produced by the infiltration method. Tungsten-silver alloy is usually used as low-voltage power switches, lifting switches, locomotive switches, pre-contacts of high-current switches, as well as heavy-duty relays, air circuit breakers, etc. Adding cobalt can improve the wettability of silver to tungsten and reduce contact resistance.
Tungsten-silver alloy is widely used in high-temperature resistant materials, electrical alloys for high-voltage switches, electrical machining electrodes, and microelectronic materials. As parts and components, it is widely used in aerospace, aviation, electronics, electricity, metallurgy, machinery, sports equipment and other industries. .
Tungsten silver grade:AgW30 AgW40 AgW50 AgW55 AgW60 AgW65 AgW70 AgW75 AgW80 AgW85
