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Tungsten plate rolling can be divided into hot rolling, warm rolling and cold rolling. Due to the large deformation resistance of tungsten, the ordinary roll can not meet the requirements of tungsten plate rolling, so the roller of different materials should be used. Rolling, roll to preheat, according to different rolling conditions, preheat temperature is 100 ~ 350℃. When the relative density of billet (the ratio of actual density to theoretical density) is greater than 90%, it can be processed, and when the density of billet is between 92 and 94%, the processing performance is good. The billet temperature of hot rolling is between 1350 ~ 1500℃, the billet will be stratified if the deformation parameters of billet are not selected properly. Hot rolled plate with a starting temperature of 1200℃ and a thickness of 8 mm can reach 0.5 mm after warm rolling.
Tungsten melting point is up to 3420℃, has a very good high temperature strength, and a very good corrosion resistance to the molten alkali and vapor. Its extremely high thermal stability ensures it work properly in the high temperature environment.
Tungsten has the characteristics of high melting point, high strength and hardness, high temperature performance, low resistivity, small expansion coefficient, small electronic work function etc., is the most widely used high temperature resistant metal materials.
Grade: W1, W2
Standard: Comply with GB3875-83 (Tungsten and tungsten Alloy sheets), ASTM B760-86 (Tungsten and Tungsten Alloy Medium Thick Plates, Sheets and Foil)
Tungsten content | Sum of other elements | Content of each element |
≥99.95% | ≤0.05% | ≤0.01% |
Thickness mm | Width mm | Length mm |
0.05 ~ 0.10 | 100 | 600 |
0.10 ~ 0.15 | 100 | 800 |
0.15 ~ 0.20 | 200 | 800 |
0.20 ~ 0.30 | 300 | 1000 |
0.30 ~ 0.50 | 420 | 1200 |
0.50 ~ 1.0 | 550 | 1000 |
1.0 ~ 2.0 | 610 | 1000 |
2.0 ~ 3.0 | 500 | 1000 |
> 3.0 | 400 | 800 |
Thickness mm | Width mm | Length mm |
1.0 | 50 | 100 |
2.0 | 150 | 200 |
3.0 | 150 | 150 |
4.0-5.0 | 200 | 400 |
5.0-10.0 | 300 | 800 |
10.0-15.0 | 300 | 1000 |
＞ 15.0 | L | L |
The extended tungsten products can be widely applied to the following fields through deep processing in the later period:
Tungsten inner shielding/inner insulation shielding, in-furnace support frames, loaded boatsand so on in sapphire crystal furnacesand vacuum furnaces;
Monocrystalline silicon industry: tungsten shielding;
Vacuum coating industry: evaporation coating tungsten boats, tungsten cathodes,tungsten plane targets;
MOCVD tungsten plane heating bodies, LED chip substrates, and MOCVD high-temperature-resistant partsin the industry of semiconductors and electronics, parts of ion sources in ion implantation equipment
Manufacturing of collimator leaves of CT machines in the medical device industry
No.26 Baotai Road, Weibin District, Baoji City, Shaanxi, China.
No.26 Baotai Road, Weibin District, Baoji City, Shaanxi, China.
