The use of tungsten crucible mainly includes the following aspects:
1, heating method : tungsten crucible because of its small bottom, usually need to stand on the mud triangle to direct fire heating. When heating, the crucible can be placed directly or diagonally on the iron Triangulum, depending on the needs of the experiment .
2. Prevent sudden cooling : after heating, the tungsten crucible cannot be immediately placed on a cold metal table, in order to avoid cracking due to rapid cooling. The correct way is to leave it on the iron triangle to cool naturally, or put it on the asbestos net to cool slowly .
3, use precautions :
to prevent the subject from jumping out : Use the crucible cover angled over the crucible to prevent the subject from jumping out and to allow air to enter and exit freely for possible oxidation .
Avoid burning the table top or causing a fire : do not place the heated crucible on the wooden table top immediately.
Using tools : Use the crucible pliers when taking out the crucible.
Application field : tungsten crucible is mainly used in metallurgical industry, mechanical processing, glass and ceramic industry and other fields. Due to its excellent high temperature resistance, it can be used in vacuum inert gases below 2600 degrees. Tungsten is widely used in rare earth smelting, quartz glass, electronic spraying, crystal growth and other industries for its high melting point, boiling point, high temperature strength, anti-friction and corrosion resistance.
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