Long-life rare earth molybdenum crucible and preparation method thereof

According to the long-service-life rare earth molybdenum crucible and the preparation method thereof, the problems that an existing molybdenum crucible is short in service life, and a tungsten crucible is high in use cost are solved. The long-life molybdenum crucible for rare earth smelting can be prepared through the method. The molybdenum crucible prepared through the method is made of pure molybdenum-pure tungsten, molybdenum lanthanum oxide-tungsten lanthanum oxide, molybdenum cerium oxide-tungsten cerium oxide, molybdenum zirconium oxide-tungsten zirconium oxide, molybdenum yttrium oxide-tungsten yttrium oxide and other materials. In addition, the density of the crucible reaches 94% or above, the purity is high, the interface connectivity is good, the interface strength is high, the grain size is small, the crucible is suitable for batch production, the main research content of the patent is to prepare the crucible with the opening made of tungsten materials and the middle lower wall and the bottom made