Compare of Tungsten Crucible Molding Method

Tungsten crucible has a wide range of applications in vacuum sintering, electron spraying, rare earth smelting, crystal growth and other industries. Because tungsten is expensive and its working conditions are harsh, it is especially important to improve its reusability.

Compare of tungsten crucible molding method:

According to different molding process (manufacturing method), tungsten crucible can be divided into different types: pressing forming type, sintering molding type and welding molding type.

In these products, welding molding tungsten crucible has the advantage of a relatively low price, and because of the increase of its thickness, compared pressing molding tungsten crucible, it has longer service life. Of course, such a tungsten crucible durability depends on, the selection of materials, welding environment, welding technology and appropriate heat resistance treatment after forming. If these processes are dealt with appropriately, sintering tungsten crucible and welding tungsten crucible with the same thickness will has the same high temperature resistance performance and service life, and sometimes even the life of welding type is above the sintering one.

Pressing molding tungsten crucible is most widely-used, whose application is most extensive and it is relatively inexpensive. However, due to the production process, it has a drawback: thin. Thus, long-term use performance of such crucible is poor.


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