Quartz crucible is a newly developed high-temperature resistant material with strong high-temperature resistance and good thermal stability. It can be directly heated on a flame. However, there are blue spots on the surface during use, and at this time, the quartz crucible needs to be sandblasted.

1. A quartz crucible is a bowl shaped container with a deep ceramic bottom. When a solid is heated by high fire, quartz ceramics need to be used. Because it is more resistant to high temperatures than glassware, the lid is usually tilted on top of quartz ceramic during use to prevent heated objects from jumping out and allow air to enter and exit, which may cause oxidation reactions.
2. Because the bottom of the crucible is very small, it is usually necessary to stand on a mud triangle to directly heat it with fire. It can be placed upright, tilted on an iron tripod, or placed on its own according to experimental needs. Do not immediately place it on a cold metal table after heating to avoid cracking due to rapid cooling. Quartz crucibles should not be immediately placed on wooden tabletops to avoid burning the tabletop or causing a fire. The correct approach is to cool it naturally on an iron tripod or slowly cool it on an asbestos mesh.
After sandblasting, there is a certain degree of change in the heating and oxidation degree of the quartz crucible. However, during the sandblasting process, attention should be paid to the correct steps and special care should be taken when using to avoid reducing the product's performance.
Editor: xxskr