Rolled tungsten sheet can be grouped into hot-rolled tungsten sheet, warm-rolled tungsten sheet and cold-rolled tungsten sheet.
Just like tungsten crucible, tungsten sheet is also made of tungsten powder. While tungsten sheet and tungsten crucible have different applications. Tungsten crucible is mainly applied in the smelting of rare earth metals and the smelting of quartz glass. Tungsten crucible also can be used as heating element of induction furnace and high temperature vessel.
Due to tungsten is featured by good resistance of deformation, ordinary rollers can not totally meet the rolling requirements of tungsten sheet. It needs special rollers to make tungsten sheet. Before rolling, preheat the roller. According to varied rolling conditions, the preheat temperature of rollers can be 100 ℃ to 350 ℃. Only when the relative density of semifinished tungsten sheet is more than 90%, producers can process tungsten sheet. If the density of semifinished tungsten sheet is 92% to 94%, the processability of tungsten sheet will be excellent. The billet temperature of hot rolling should be at 1350 ℃ to 1500 ℃. The billet temperature of warm rolling should be at 1200 ℃.
The hot-rolled tungsten sheet with 8 mm of thickness can be reached 0.5mm through warm rolling.
Tungsten and molybdenum manufacturer-Zhengzhou Sanhui Co., Ltd offers a wide range of tungsten and molybdenum products.