Let's introduce the alumina ceramic crucible.
Let's introduce the alumina ceramic crucible
Alumina crucible is a widely used crucible in chemical experiments. Because of its superior performance, it is more and more frequently used in the laboratory. It is especially suitable for metal and non-metal sample analysis and melting materials. Next, let's introduce the alumina crucible.
Alumina cruciblesare also called corundum crucibles. The shapes are mainly cylindrical, conical, arc, box-shaped, etc. The purity of alumina crucibles is high, containing more than 99% of AL2O3. 99% alumina materials are used to make high-temperature crucibles, refractory tubes and special wear-resistant materials. , Such as ceramic bearings, ceramic seals and water valve discs, so good chemical resistance, good temperature resistance, can be used at 1650 ℃ for a long time, can also be used up to 1800 ℃, but only for short-term use.
The alumina crucible has good resistance to rapid cooling and rapid heating, and is not easy to burst. Because the alumina crucible is grouting, it has a high density. The corundum crucible has good high temperature insulation and mechanical strength in an oxidizing and reducing atmosphere. It has a large thermal conductivity and a small thermal expansion coefficient. Vapors, carbon monoxide, etc. cannot react.
