3D printed tungsten rhenium nozzle
Tungsten-rhenium alloy based on tungsten element matrix type and solid solution strengthening and rhenium elements, alloys, tungsten alloy, and relative to other rhenium tungsten (W-Re alloys have more excellent comprehensive performance, mainly reflected in both the low temperature ductility, high temperature strength, and therefore is widely used in aerospace, aviation, military, defense, semiconductor, welding and other fields. In the aerospace field, spherical W-Re powder is mostly used in the core plug-in of 3D-printed rocket engine nozzle.
As an important component of rocket engine, nozzle plug also needs to work under harsh conditions such as high temperature, high pressure, high speed and strong vibration for a long time. The extreme working environment requires that the raw materials for the preparation of nozzle plug-ins should have high melting point, low thermal expansion coefficient, strong heat dissipation ability, good mechanical properties and ductility, etc. Otherwise, the use effect and service life of the product will be poor, and it is likely to lead to the failure of the rocket launch. Because in the aerospace field, compared with other tungsten-based alloys or rhenium - based alloys suitable for the manufacture of rocket engine nozzle parts.
3D technology can print not only tungsten rhenium nozzle plug-in, but also the filament, temperature measuring parts and heating parts. Tungsten-rhenium wire can effectively avoid the brittle increase of tungsten wire after high temperature use, easy to fracture, so it is commonly used for the production of special requirements of tungsten lamp, chromatograph heat sensitive elements, television heating wire, color picture tube hot wire, electron tube filament and grid.
