The corundum crucible has a variety of models, specifications and models, which will not be limited by the production volume, size, a large number and a wide range of smelting chemicals in application. It can be selected at will, has a strong scope of application, and can ensure the purity of smelting chemicals.

Put it in a dry place after use, and do not erode by precipitation; Bake slowly to 500 ℃ before application.

Feed according to the volume of the crucible. Do not press too tightly to prevent thermal deformation and expansion crack of metal materials.

When taking the metal material liquid, scoop it out with a small spoon, and try to avoid using the brake disc. If the brake disc and other items used should be integrated with the crucible shape, so as to prevent part of the bearing force from being too large and reduce the service life.

4、 The service life of the crucible is related to the operation method. Strong air oxidation flame should be prevented from spraying into the crucible immediately, so that the air oxidation life of the crucible material is short.

Corundum crucible

From the point of view of manufacturing raw materials, crucibles are divided into three key types. The first is crystalline high-purity graphite, the second is ductile refractory clay, and the third is hard porcelain clay frame cement clinker. Since 2008, heat-resistant composite materials, such as carbon carbon composite, aluminum oxide diamond sand and ferrosilicon, have been gradually used as frame crucible cement clinker. This has a very obvious effect on improving the product quality of crucible and improving the relative density and impact toughness of crucible.

Crucibles containing more than 95% aluminum oxide are called corundum crucibles.

1、 Corundum crucible is an alumina crucible with firmness and melting resistance, which is composed of molten aluminum trioxide with porous structure.

2. Corundum crucible is suitable for some weakly alkaline chemicals (such as k2s207) as solution melting test samples, rather than strong alkaline substances and acidic substances such as na202. NaOH.

In addition, in Japanese, rutubo means "dilemma", which is also translated into "vortex" or "mire" in animation works. (this is a misinterpretation, crucible Roman actually needs to be written as rutsubo)