Graphite Block After Processing Electrode
Graphite block is a kind of square product in side graphite electrode , the production process same graphite electrode , it is made of high-quality petroleum coke and pitch, through calcination, batching, kneading, molding, baking, graphitization, machining.
Properties of graphite blocks
The graphite block/square has high bulk density, low resistivity, oxidation resistance, corrosion resistance, high temperature resistance and good electrical conductivity, etc
Physical and chemical indexes of graphite block.
Items | Unit | GSK | TSK | PSK |
Granularity | mm | 0.8 | 2 | 4 |
Resistivity | Μ Ω m | ≤7.5 | ≤8 | ≤8.5 |
Bulk density | g/cm3 | ≥1.74 | ≥1.72 | ≥1.72 |
Compressive strength | MP A | ≥36 | ≥35 | ≥34 |
Flexural strength | MPA | ≥15 | ≥14.5 | ≥14 |
Ash | % | ≤0.3 | ≤0.3 | ≤0.3 |
Elastic mould | Gpa | ≤8 | ≤7 | ≤6 |
Thermal expansion coefficient | 10-6/℃ | ≤3 | ≤2.5 | ≤2 |
Porosity | % | ≥18 | ≥20 | ≥22 |
Specification of graphite block
| Blocks | Length | Width | Thickness |
Size Range | 0-900 mm | 0-400 mm | 0-320 mm |
Standard Size | 200-900 mm | 125-400 mm | 53-320 mm |
1．Larger size specially pressed. | |||
2. Smaller size further machined. | |||
3．Machined parts done to drawings | |||
4. Anticorrosion cover available(Sic Cover, Pitch Cover, etc) | |||
Application of graphite block
The graphite block/square is widely used: for example, it is used to manufacture product molds (EDM). Meanwhile, the graphite block/square is also widely used in other manufacturing industries. We can produce any specifications of the graphite block/square below the size 3600mm(length)×850 mm(width)×850mm(height).
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