The Long March 2F Rocket carrying the Shenzhou-12 Manned Spacecraft was successfully launched from the Satellite Launch Center in Jiuquan at 9:22 am on June 17 ,which means that China’s aerospace industry has made further development.Why do tungsten and molybdenum materials make an amazing contribution to the launch of Shenzhen-12 ?

1.Rocket Gas Rudder

Tungsten molybdenum alloy material is the best choice for the rocket engine gas rudder,because the rocket engine gas rudder works in the high temperature and strong corrosion environment.As we all know,the tungsten and molybdenum’s feature is resisting the high temperature and corrosion.

Both tungsten and molybdenum are the body-centered cubic structure and their lattice constants are close to each other, so they can be alloyed by means of substitution and solid solution into binary alloy.Compared with the pure tungsten and pure molybdenum,the tungsten molybdenum alloy’s comprehensive performance is better,mainly in production cost and high strength in high temperature.

2.Rocket Ignition Tube

Tungsten alloy material also is suitable for rocket engine’s ignition.The reason is that the rocket’s emission temperature is over 3000 ℃ which can melt the steel,and the tungsten alloy’s advantages exactly are high temperature resistance,corrosion resistance,high strength and excellent ablation resistance.

3.Rocket Throat Bushing

Rocket bushing,a part of the engine,its performance can directly influence the quality of the booster.the gas when rocket is launched through the throat can produce tremendous thrust,causing the high temperature and pressure in the throat.W-Cu alloy is preference for throat bushing in the modern,because W-Cu alloy can withstand higher temperature and mechanical impact force.

Except the parts above for the rocket,there are also many parts made from the tungsten and molybdenum materials.That is why tungsten and molybdenum materials make an amazing contribution to the launch of Shenzhen-12.