Sapphire Crystal Furnace Tungsten Rhenium Tungsten Rhenium Wire Products

Sapphire crystal furnace of tungsten, molybdenum, rhenium, tungsten rhenium alloy wire products by doping element rhenium wire to improve the toughness of brittle transition temperature decrease , increase the recrystallization temperature and resistance creep. Sapphire crystal furnace of tungsten, molybdenum, rhenium products can be used at high temperatures in an inert environment bundled tungsten heater element and seed rods, sapphire crystal furnace of tungsten, molybdenum, rhenium, tungsten rhenium wire products commonly used model is the diameter of 0.5 mm tungsten rhenium 25 of its containing 25% rhenium . Tungsten containing 25% rhenium alloy , tungsten, rhenium and workability becomes more ductile . Tungsten- rhenium wire has good electrical properties, can be used as high temperature thermocouple wire .

The melting point of tungsten- rhenium wire 3120-3360 ℃, the highest you can use to 3000 ℃. Tungsten- rhenium wire has high thermoelectric power , high sensitivity, does not dissolve in acid and other characteristics of any individual , tungsten rhenium wire abundant raw materials in China , cheap, etc. . In some high reliability is required to prevent the electric light filament breakage products often referred to as doped tungsten rhenium tungsten rhenium added wire, tungsten rhenium wire can extend tungsten brittle transition temperature down to room temperature or below . Tungsten- rhenium wire is brittle tungsten can be extended , even at a lower temperature is room temperature or lower temperature .

Tungsten- rhenium wire in addition to 26% Re this frequently used mainly for tungsten rhenium alloy thermocouple material , tungsten rhenium thermocouples main strengths in: a fast response . 2 , wide temperature range up to 2500 ℃. But is generally used in an inert atmosphere or a reducing atmosphere , or need to add protective casing , usually molybdenum alloy casing !


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