Vacuum coated pure molybdenum crucibles for high-temperature electric furnaces

Product Details

Molybdenum crucibles are widely used as core containers in industrial furnaces such as sapphire single crystal growth furnaces, quartz glass melting furnaces, rare earth smelting furnaces, etc. Their working temperature environment is generally above 2000 ℃. Especially for sapphire single crystal growth furnaces, molybdenum crucibles with characteristics such as high purity, high density, no internal cracks, precise size, smooth inner and outer walls, etc. play a crucial role in the success rate of seed crystallization, quality control of crystal pulling, crystallization adhesion pot, and service life of sapphire crystal growth process.

Molybdenum crucible is an indispensable material in the rare earth smelting industry. Rare earth metal smelting is mostly carried out in a high-temperature and unprotected atmosphere. The electrolysis process must use refractory metal materials, such as tungsten as the electrode rod and molybdenum as the crucible. Rare earth metal metallurgy first mixes molybdenum powder and tungsten powder with rare earth metal oxides, undergoes pressing and machining to form a molybdenum crucible blank. Next, it undergoes high-temperature sintering to form a molybdenum crucible and extract the rare earth metal.