Spinning molybdenum crucible, sintering molybdenum crucible, lab molybdenum crucible

Molybdenum crucible has the characteristics of high melting point (melting point up to 2620 ° C) and high strength at high temperature. At present, there are mainly two manufacturing methods of molybdenum crucible used in the field of high temperature melting: powder metallurgy method and molybdenum plate welding method. The density of molybdenum crucible made by powder metallurgy method is low, and the density of molybdenum crucible can reach 9.8g/cm3, which makes the service life of the crucible on the low side; the welding seam of the molybdenum crucible made by molybdenum plate welding method is poor, which leads to the premature damage of the molybdenum crucible, and also makes the life of the molybdenum crucible lower.

Molybdenum crucible is usually used as the core container and heating body in various high-temperature industrial furnaces. The melting point of molybdenum is as high as 2610 ° C, and the service temperature of molybdenum crucible is usually within 2000 ° C. Because the production cost is far lower than that of tungsten crucible, it is inevitable that molybdenum crucible will replace tungsten crucible in high temperature environment within 20000c. With the continuous development of industrial technology, the size of high-temperature industrial furnace is becoming larger and larger, and the demand for large-size, large single weight molybdenum crucible is more and more.

According to different manufacturing methods, molybdenum crucible can be divided into sintering type, stamping type and welding forming process. Among these formed molybdenum crucible products, stamping crucible is widely used in the current market with relatively low price and wide application range. However, due to the influence of processing technology, it has an inherent defect that is difficult to improve, that is, its thickness is thin, which is not conducive to long-term use Poor performance in the number of repeated use.