Tungsten Foil
Tungsten foil is mainly used for the manufacture of electric heating furnace electric heating body, heat shield and electric vacuum electric light source parts, etc. Tungsten foil made by stamping and forming tungsten boat for vacuum coating .
Available tungsten foil specifications
|
Thickness (mm) |
Width (mm) |
Length (mm) |
surface condition |
|
0.05-0.1 |
100±0.2 |
400±2.0 |
Alkali wash |
|
0.1±0.01 |
150±0.2 |
1200±2.0 |
Alkali wash |
|
0.2±0.02 |
150±1.0 |
1200±2.0 |
Alkali wash |
|
0.3±0.02 |
400±1.0 |
1200±2.0 |
Alkali wash |
Tungsten foil composition
|
Sum of other elements |
Other content of each element |
Delivery status |
|
≤0.05% |
≤0.01% |
Rolling / caustic washing / polishing |
Tungsten foil use field
1. Electric light source parts and electric vacuum devices
2. Tungsten boat, heat shield and heating element of high temperature furnace
3. Medical diagnosis and treatment equipment
4. Radiation and interference shielding
Tungsten foil supply form
1. Alkaline pickling surface
2. Annealing state
3. Polishing surface
Tungsten foil preparation method The
tungsten foil is prepared by first pressing the tungsten powder by isostatic pressing and forming a tungsten slab after high temperature sintering. After the tungsten slab is rolled by the rolling mill, the tungsten plate and the tungsten foil which are cut and formed by the shearing machine are mainly used for manufacturing the heating body of the electric vacuum furnace, the heat shield and the parts of the electric vacuum electric light source, etc., the tungsten foil material A tungsten boat made by stamping is used for vacuum coated vessels.
