Tungsten tube

Tungsten tube is mainly used in thermocouple protection tube in high temperature furnace, sapphire single crystal furnace and support in high temperature sintering furnace.

Tungsten alloy has a good radiation shielding effect, so tungsten alloy tube can be used in medical shielding needle tube; used in rocket thruster, the engine is a jet engine, which uses high-performance compressed fuel, and the temperature generated during rocket launch can reach thousands of degrees. Tungsten alloy tube is a metal material with high temperature resistance, so it is widely used in rocket engine It is used in lining and ignition tube parts. When the ignition tube is deep into the combustion chamber of the engine, huge heat is generated immediately after ignition. At this time, the ignition tube has to bear thousands of temperatures, which requires high temperature resistance of materials.

Supply status: sintered or processed

Executive standard: GB / T 4187-1984 (tungsten rod) ASTM f288-90

Size range: Φ (6.0 ~ 200) mm × Φ (3.0 ~ 180) mm × (50 ~ 400) mm special specification tungsten tube is designed and produced according to customer's demand.

Production process: isostatic pressing - intermediate frequency sintering - machining - tungsten tube products

Production equipment: isostatic pressing, medium frequency sintering furnace, CNC lathe, CNC drilling and milling machine, coreless grinder, wire cutting machine

Characteristics of tungsten tube:

1. The purity of tungsten tube is quite high, generally over 99.95%;

2. Its density is more than 18.2g/cm3;

3. The recommended working temperature should be lower than 2500 ℃;

4. 0.2965 at 2027 ℃;

5. The coefficient of thermal expansion is 4.98x10-6 at 1600 ℃;

6. The specific heat capacity at 1400 ℃ is 0.16j/g. ℃。

7. The pollution of tungsten tube is low.