Rhenium crucible, the preparation method thereof and the die used for preparing rhenium crucible belong to the field of metal materials. The preparation method includes the following steps: mix rhenium powder and binder evenly to make feed; The injection blank is obtained by injection molding. The injection billet was degreased and sintered to obtain rhenium crucible. The preparation method has the advantages of simple operation, stable process, rapid molding and high material utilization rate. The invention also relates to a rhenium crucible prepared by the method mentioned above. The rhenium crucible has good forming effect, regular shape, uniform texture, smooth surface, high strength and durability. The invention also relates to a mold for preparing rhenium crucible, the mold shape can be adjusted according to the specific requirements of rhenium crucible, the inner cavity is clean to ensure that the surface of the rhenium crucible is uniform, the combined structure is very convenient for installation and demoulding.
Traditional rare metal processing methods include spinning and jet deposition. For rhenium, the cold working hardening rate is very large, for the most metal, hardening in the process of processing, need multiple annealing treatment, deformation resistance, high requirements for processing equipment, and rhenium in hot processing, in the grain boundary of rhenium will form a low melting point of rhenium seven oxide, so rhenium thermal deformation treatment must be carried out in hydrogen or vacuum environment, high requirements for auxiliary equipment, therefore, The traditional spinning method is not suitable for rhenium processing. The spray deposition method for metal powder utilization is not high, in the whole forming process requires gas protection, for the expensive metal rhenium is too high cost, is not suitable.
Rhenium is chemically stable and resistant to corrosion. It is not oxidized in the air. Acids and bases have little effect on it. And rhenium has excellent thermal vibration resistance and excellent creep resistance, in the larger thermal expansion, no mechanical damage, suitable for high temperature heating materials and high temperature corrosion resistant materials.
