Factory Price Price Of Expansion Valve - Fine structure graphite block,fine grain size column graphite block – VET Energy Detail:
Graphite block is made from the domestic petroleum coke and widely used in the metallurgy, machinery, electronics and chemical industry, etc. The graphite block include molded, extruded, vibrated and isostatic.
Process :
Raw material ->Medium crushing / milling ->Screening -> dosing -> kneading-> vibrated molding->impregnation -> baking-> graphitization
Physical and chemical index
Item | Unit | Isostaic graphite |
Grain size | μm | 5-22 |
Bulk density | g/cm3 | 1.8-1.85 |
Specific resistance | μΩ.m | ≤15 |
Bending strength | Mpa | ≥40 |
Compressive strength | Mpa | ≥85 |
Shore hardness | ≥65 | |
C.T.E.(100-600)℃ | 10-6/℃ | 4.0-5.2 |
Modulus of elasticity | Gpa | 10-12.5 |
Ash | % | ≤0.03% |
High pure graphite | |||||
Item | Unit | Baked twice | Baked three times | Baked four times | |
Impregnated once | Impregnated twice | Impregnated three time | |||
Grain size | Mm | ≤325 mesh | ≤325 mesh | ≤325 mesh | |
Bulk density | g/cm3 | ≥1.68 | ≥1.78 | ≥1.85 | |
Specific resistance | μΩ.m | ≤14 | ≤14 | ≤13 | |
Bending strength | Mpa | ≥25 | ≥40 | ≥45 | |
Compressive strength | Mpa | ≥50 | ≥60 | ≥65 | |
Ash content | % | ≤0.15 | ≤0.1 | ≤0.05 |
Product detail pictures:
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Factory Price Price Of Expansion Valve - Fine structure graphite block,fine grain size column graphite block – VET Energy, The product will supply to all over the world, such as: , , ,
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