The molybdenum crucible can be used as a container for smelting rare earth metals. It has extremely strong resistance to the corrosion of rare earth metals without contaminating the rare earth metals. However, in the rare earth smelting process, the molybdenum crucible will have a certain loss. The life of the molybdenum crucible is relatively short, about 30 to 80 times.

Molybdenum still has sufficient creep strength after the temperature exceeds 1300 ° C. The molybdenum crucible can work at a high temperature of about 2000 ° C for a long time, which makes the molybdenum crucible play an important role in glass melting.

At present, there are dozens of quartz continuous melting furnaces (GE furnaces) designed and used in China, and the core component is a large overall molybdenum crucible. This type of molybdenum crucible is a consumable item, and it consumes one on average each year.