graphite molds

الوصف

Graphite molds are commonly used in aluminum, gold and silver casting.  Benefits of graphite permanent molds are realized by combining the low cost associated with machining graphite and high strength common to graphite materials,   providing an economical alternative to other molds in the zinc-aluminum casting industry.

Material: Graphite 
Special features: High purity, fine grain, good performance of electrical conductivity and thermal conductivity, high density, good corrosion resistance, thermal shock resistance, thermal stability, high mechanical strength, low permeability, and good oxidation resistance 
The raw material is capable of producing various semiconductor molds and radio tube 

Materials index: 
Content: *9.*9% 
Density: 1.*7g/cm 
Specific resistance: 9 Ohms-m 
Compressive strength: *5mPa 
Shore hardness: *5 
Porosity: *5%