In daily life, we know that melting gold and silver requires graphite crucibles, becauseGraphite crucibleIt has high temperature resistance, high melting point and other characteristics, so it is very common. In addition to the precautions in use, we also need to make preparations before use. Next, Xiaobian will talk about the preparations of graphite crucibles before use, mainly including the following:

1. First of all, check whether the graphite crucible has cracks before work. If there are no cracks, heat the graphite crucible to above 600 ° C and fully dry it.

2. There shall be no ponding around the furnace and in the pit in front of the furnace, and irrelevant articles shall not be stacked near the graphite crucible.

3. Strictly check whether there are explosives in the charge. The charge must be preheated and dried before adding. The speed of adding graphite crucible should be slow.

Xiaobian warm tip: before using the graphite crucible, you must do the above three points well, otherwise it is very likely to causeGraphite crucibleDanger of explosion during use.