Tungsten Plate/sheet

Tungsten plate rolling can be divided into hot rolling, warm rolling and cold rolling. Due to the high deformation resistance of tungsten, ordinary rollers cannot fully meet the requirements for rolling tungsten plates, and rollers of special materials should be used. During rolling, the rolls must be preheated, and the preheating temperature is 100 to 350°C according to different rolling conditions. The blank can be processed only when its relative density (the ratio of actual density to theoretical density) is greater than 90%. The processing performance is good when the blank density is between 92 and 94%. The billet opening temperature of hot rolling is between 1350 and 1500°C. If the deformation process parameters of billet opening are not selected properly, the billet will be delamination. The starting temperature of warm rolling is 1200°C, and the thickness of a hot-rolled plate with a thickness of 8 mm can reach 0.5 mm after warm rolling.

Characteristics:

1. high melting point, high strength,
2. outstanding thermal conductivity,
3. excellent resistance to electrochemical corrosion,
4. excellent resistance to oxidation at high temperatures

 Applications:
1. used as the stell-making additive
2. for producing tungsten targets
3. for producing ion implantation parts
4.for rolling tungsten foil and punching tungsten discs
5. for producing electric light source parts and electric vacuum components
6. for producing heating elements and refractors in high temperature furnaces
7. for producing W-boats, and heating units in high temperature furnaces

Tungsten plate rolling can be divided into hot rolling, warm rolling and cold rolling. Due to the strong deformation resistance of tungsten, ordinary rolls cannot fully meet the requirements of tungsten plate rolling, and rolls of special materials should be used. When rolling, the roll should be preheated. According to different rolling conditions, the preheating temperature is 100-350°C. The relative density of the blank (the ratio of actual density to theoretical density) can only be processed if it is greater than 90%, and the processing performance is good when the blank density is 92-94%. The billet opening temperature for hot rolling is between 1350 and 1500°C. If the blank deformation process parameters are not properly selected, the blank will be delaminated. The starting temperature of warm rolling is 1200°C, the thickness of hot rolling plate is 8mm, and it can reach 0.5mm after warm rolling.