silicon carbide crucibles smelting clay graphite crucible

Classification of  Graphite Crucibles:

1. High purity machined graphite crucible, which is machined according to customers' drawing from large graphite blocks. 

it is widely used in melting of glass, precious metals, rare earth, zinc, silver, gold, ceramics etc. 

2. Graphite clay crucible.This kind of graphite crucible is pressed in mold of mixtures of graphite powder and clay. 

3. Graphite SiC crucible. This kind of crucible is isostatic pressed in mold of mixtures of graphite powder and Silicon carbide. 

The second and third kinds crucibles are widely used in melting iron, steel, copper, aluminum, tin, zinc, silver and gold etc. 

If you are not sure which kind graphite crucible is suitable, we will be glad to offer you suggestions according to our many years of experience in metal casting industry.

Advantage

• high strength    (Flexural strength: 39Mpa  Compressive strength: 78Mpa   With rising of temperature, graphite strength increases)
• high purity   (Carbon: 99.5%)
• high temperature resistance (graphite material melting point is 3850±50)
• good heat shock resistance.