High temperature resistant alumina ceramic crucible, corundum crucible, alumina crucible

High temperature resistant alumina ceramic crucible, corundum crucible, alumina crucible

Name: Alumina Ceramic Crucible
Color: white, light yellow

Size:
Φ40×40
Φ50×120
Φ60×60
Φ60×120
Φ70×70
Φ70×90
Φ80×80
Φ80×160
Φ90×90
Φ100×100
Φ120×120
Φ125×125
Φ130×130
Φ140×140

Purity: 99.3% ~ 99.6%

Product technology: grouting molding

Color: beige

Advantages: the surface of 99 alumina ceramic crucible is smooth, compact and wear-resistant. It can be fired in 1780 ℃ electric kiln and can withstand high temperature. It is widely used in the research and development of new materials in military industry and scientific research institutes, high temperature experiments in Colleges and universities, high-end powder calcination, glass, phosphor and other industries

Product size processing range: 20 mm ~ 450 mm

Introduction to crucible
1. High heat resistance, about 1200 ℃.
2. It is suitable for melting samples of K2S2O7 and other acidic substances.
3. Generally, it can't be used for melting with NaOH, Na2O2, Na2CO3 and other basic materials as fluxes to avoid corrosion of porcelain crucibles. The porcelain crucible should not be in contact with hydrofluoric acid.
4. Porcelain crucible can be washed by boiling with dilute HCl.
5. Porcelain crucibles can be divided into: medium wall crucible, low wall crucible, high wall crucible, plain crucible, volatile crucible, tight crucible, Roga crucible, double-layer crucible, Guchi crucible, fine hole crucible, infrared carbon sulfur crucible, free expansion coefficient crucible, etc.
6. Ceramics have water absorption. Therefore, in order to reduce the error, the crucible should be strictly dried before use and weighed on the analytical balance. Sometimes the analyte is filtered with ashless filter paper, which is put into the crucible together; the filter paper is completely decomposed at high temperature without affecting the results. After high temperature treatment, the crucible and its contents are dried and cooled in a special dryer, and then weighed. Clean crucible tongs are used to clamp the whole process.