The tungsten copper powder sintered material is distributed in the form of tungsten as the skeleton evenly on the copper matrix. Due to the high melting point and high hardness of tungsten W, tungsten at 1000 ℃, its ultimate tensile strength is still 50kgf / mm2, higher than the strength of low-carb
Carbide forging is also known as forging die, with good heat resistance and anti-fatigue ability, which through the upper and lower mold clamping to exert a certain squeeze force, making die forging better mechanical and mechanical properties. There are many types of carbide forging die, mainly clas
Tungsten powder is made from tungsten oxide in the four-tube muffle furnace or multi-tube furnace with hydrogen reduction with particle size from 0.6-30 microns. Mainly has coarse, medium and fine granularity, silver gray powder, impurity content based on national standards.
Molybdenum wire is made from molybdenum rods with series of processing such as hot-rolling, forging, drawing and made into a variety of specifications. Molybdenum wire often breaks in the drawing production process , resulting in molybdenum wire into the material rate.
Coal-water slurry is a new coal-based liquid fuel that emerged from the 1970s, consisting mainly of 65% coal, 34% water and 1% chemical additives. Compared with other types of fuel, it has many advantages, such as low sulfur content, high combustion efficiency.
The recrystallization temperature of lanthanum-doped molybdenum wire is higher than pure molybdenum wire, and it is because small amount of La2O3 can improve the properties and structure of molybdenum wire. Besides, La2O3 second phase effect can also increase the room temperature strength of the mol