Tungsten
Pure Tungsten Rod Tungsten Copper Rod Tungsten Alloy Rod
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- Tungsten rods are made from metal powder at a specific high temperature, using special high temperature powder metallurgy technology.Thus the tungsten rod material has low thermal expansion coefficient, good thermal conductivity and good material properties.Tungsten bars have special properties, such as low thermal expansion and good thermal conductivity, sufficient resistance, high elastic modulus. Therefore, tungsten rod is widely used in various fields.
Tungsten rods introduction
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Appearance |
silver grey metal luster |
|
purity |
W≥99.95% |
|
Density |
not less than 18.3g/cm3 |
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Supply state |
annealing or processing |
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Quality stabdard |
GB/T 4187-1984 (tungsten rod)ASTM F288-90 |
Specifications of Tungsten rods
| Unit:mm |
Tungstun bar |
Tungstun rod |
||
|
Diameter/height |
14 |
200~400 |
100~200 |
20~100 |
|
Width |
14 |
- |
- |
- |
|
Length |
400 |
10~400 |
10~900 |
10~1200 |
|
Surface |
bright |
bright |
black |
black |
|
State |
sinter |
sinter |
forged |
forged |
|
Production process of tungstun rods |
Materials—CIP --- IF induction sintering --- forging --- annealing—mechanical processing --- tungsten rods |
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Production equipments |
Coolisostatic pressing machine(CIP), IF induction sintering furnace, forging machine, coreless grinder ,CNC vertical turning machine, wire cutting machine. |
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Application of tungstun rods |
Since the heavy is18.3 g/cm3,and the melting point has reached 3380oC, tungsten rod with high temperature resistance and high creep resistance often used in high-temperature furnace, vacuum furnace, and sapphire crystal furnace. |
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