Product Main

Specifications

properties
1. High thermal and chemical resistance
2. Good thermal conductivity
3. Low coefficient of thermal expansion
4. Minimal wettability to molten metals
 
 
Compared with the traditional copper electrode,isostatic graphite materials for EDM application have the following advantages:
 
 
 
Production costs: the price of isostatic graphite is about 25% compared with the same volume copper electrode's
 

Machining Speed: The machining speed is 3--5 times faster than copper electrode's, the machined surface is smooth. Electric discharge processing speed is 1/3-2 times faster than the copper electrode's. it is better for rough machining.

 
Machining accuracy: Good machining precision, C.T.E is 1/4 of copper's ,easy polishing
 
Weight:The density of graphite is only 1/5 of copper's,it is more suitable in the production for larger electrodes.
 

Loss:Used as EDM electrode,which consumption is only 1/3-1/5 of copper electrode's, the coating of spark decomposition of carbide compensates electrode loss.

 

High temperature resistance: The melting point of graphite is up to 3650°C,No deformation under high temperature and more suitable for machining bone electrode

 
Electrode Cohesiveness: Stick damaged graphite to save time and reduce material costs.
 
 
* other dimensions are available on request.
 
 
Typical specifications
 
Item Specification Compressive Strength Flexural Strength Specific Bulk Density Ash content Porosity Shore Hardness
  mm MPa Mpa μΩ.m g/cm3 % %  
2 impregnation 3 baking More than 50 kinds 70 40 13 1.78 0.1 12 48
3 impregnation 4 baking 85 45 13 1.85 0.1 12 48
 
 
 
 
The Latest Reseach and Development:
 
Item Specification Compressive Strength Flexural Strength Specific Bulk Density Ash content Porosity Shore Hardness Granularity
  mm MPa Mpa μΩ.m g/cm3 %      
-6 560*450*210 105 50 10 1.9 0.07 12% 65 15
-7 490*140*140 110 55 10 1.93 0.07 10% 65 10
-8 560*450*250 130 49 14 1.86 0.06 10% 70 5
 
 
 Application:
 

Products graphite are widely used in such fields as industrial furnaces, mono-crystalline silicon machinery, mono-crystalline silicon machinery, electron, semi-conductor, metallurgy, oil, chemistry, textile, electrical machinery, electrical equipment, electrical furnace, traffic, communication industry, medicine, etc.

 

Providing graphite heating systems used in mono-crystalline silicon and multi-crystalline silicon industrial furnaces (such as heaters, thermal insulation material, insulation materials, etc.)

 

Providing graphite moulds, molds, graphite felt, graphite foil, graphite rod, graphite sheet, utensils, crucibles used in furnaces(such as graphite boats ,outer molds, mounting plates, etc.)

 

Providing graphite crucibles and utensils used for particular amorphous metal, rare metal, and non-ferrous metal and crystallizers for the growth of ferrous metal, etc.

 
Providing mechanical seal parts, graphite rings, graphite bearings, graphite leaf
 
 Providing carbon felt, carbon cords, graphite power, graphite felt, and compound carbon felt of different specifications