Quartz crucible is a newly developed high temperature resistant material, which has strong high temperature resistance and good thermal stability, and can be heated directly on the flame. However, there is a blue spot phenomenon on the surface during use, and this time the quartz crucible needs to be sandblasted.

1, the quartz crucible is a bowl shaped container, the bottom is deep ceramic. When a solid is heated by fire, quartz ceramics are needed. Because it is more resistant to high temperatures than glassware, when in use, the lid is usually placed at an Angle on the quartz ceramic to prevent the heated object from jumping out, allowing air to enter and exit, and possible oxidation reactions.

2, because the bottom of the crucible is very small, it is usually necessary to stand on the mud triangle to directly heat with fire. Can be placed upright, can also be tilted on the iron triangle, can also be placed according to the needs of the experiment. Do not place on the cold metal table immediately after heating to avoid cracking due to rapid cooling. The quartz crucible should not be immediately placed on the wooden table, so as not to burn the table or cause a fire. The correct approach is to cool it naturally on the iron triangle, or to cool it slowly on the asbestos net.

Quartz crucible has a certain degree of change in heating degree and oxidation degree after sand blasting. However, in the sandblasting process, attention should be paid to the correct steps, and special care should be taken when using to avoid reducing the performance of the product.