Equipment used for thermocouple protection tubes in high-temperature furnaces, sapphire single crystal furnaces, and support parts in high-temperature sintering furnaces
Tungsten tubes are mainly used in thermocouple protection tubes in high-temperature furnaces, sapphire single crystal furnaces, and support parts in high-temperature sintering furnaces.
Tungsten alloy has a good radiation shielding effect, so tungsten alloy tubes can be used for shielding needles in medical treatment; the engine used in rocket thrusters is a jet engine that uses compressed high-performance fuel. The temperature generated during rocket launch can reach thousands of degrees. Tungsten alloy tubes are a metal material with extremely strong high temperature resistance, so they are used in rocket engines in the liner parts and ignition tube parts. The ignition tube is deep into the combustion chamber of the engine, and huge heat is generated instantly after ignition. At this time, the ignition tube has to withstand a temperature of thousands of degrees, which requires a high temperature resistance of the material.
Supply status
Sintered or processed
Implementation 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 specifications of tungsten tubes are designed and produced according to customer needs.
Production process
Isostatic pressing—-medium frequency sintering—-machining—-finished tungsten tubes
Production equipment
Isostatic pressing, medium frequency sintering furnace, CNC lathe, CNC drilling and milling machine, coreless grinder, wire cutting machine
Features of tungsten tubes
1. Tungsten tubes have a very high purity, generally above 99.95%;
2. Its density is above 18.2g/cm3;
3. The recommended working temperature should be lower than 2500℃;
4. The black tungsten tube is 0.2965 at 2027℃;
5. At 1600℃, its thermal expansion coefficient is 4.98×10-6;
6. The specific heat capacity at 1400℃ is 0.16J/g.℃.
7. Tungsten tube has lower pollution.