Chinese Graphite Powder
The recarburizer is used in casting, which can greatly increase the amount of scrap steel, reduce the amount of pig iron or eliminate the need for pig iron.
1.Ingredient list
carbon raiser | Chemical composition(%) | |||||||
Ca | Ash | H₂O | Volatile component | S | N | H | Bilk density | |
Artificial graphite | 99.2 | 0.4 | 0.20 | 0.10 | 0.05 | 0.005 | - | 0.84 |
Flake graphite | 85.3 | 13.2 | 0.06 | 0.44 | 0.35 | 0.060 | - | - |
Calcined Petroleum Coke(Medium Sulfur) | 96.5 | 0.4 | 0.40 | 0.30 | 1.50 | 0.600 | 0.15 | 0.77 |
Calcined Petroleum Coke(Low Sulfur) | 98.3 | 0.4 | 0.10 | 0.20 | 0.30 | 0.080 | 0.04 | 0.80 |
Dry coke | 87.7 | 9.0 | 0.30 | 1.00 | 1.00 | 1.000 | - | 0.64 |
High-quality anthracite | 90.0 | 2.5 | 2.00 | 3.5 | 0.25 | 0.600 | 1.10 | 0.64 |
pitch coke | 97.0 | 0.5 | 0.50 | 0.5 | 0.4 | 0.700 | 0.20 | 0.55 |
2.Uses of graphitized recarburizer:
(1) High-temperature resistance
The melting point of graphite is 3850±50℃, even if it is burned by ultra-high temperature arc, the loss of weight is very small and the coefficient of thermal expansion is also very small. The strength of graphite is strengthened with the increase of temperature, and at 2000℃, the strength of graphite is doubled.
(2) Electrical and thermal conductivity
The electrical conductivity of graphite is one hundred times higher than that of general non-metallic ores. Thermal conductivity exceeds that of steel, iron, lead, and other metal materials. Thermal conductivity decreases with increasing temperature, and even at very high temperatures, graphite becomes an adiabatic body. Graphite can conduct electricity because each carbon atom in graphite forms only three covalent bonds with other carbon atoms, and each carbon atom still retains one free electron to transfer the charge.
(3) Lubricity
The lubricity of graphite depends on the size of graphite scales, the larger the scales, the smaller the coefficient of friction, the better the lubricity.
(4) Chemical stability
Graphite has good chemical stability at room temperature, resistant to acid, alkali, and organic solvent corrosion.
(5) Plasticity
Graphite has good toughness and can be milled into very thin sheets.
(6) Thermal shock resistance
Graphite can withstand drastic changes in temperature without damage when used at room temperature, and when the temperature changes suddenly, the volume of graphite does not change much and does not produce cracks
3. Product production
4. Quality
5. Support sea, land and air transportation
6. Support express delivery
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