| Customization: | Available |
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| Color: | Black |
| Grade: | Industrial Grade |
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carbon raiser, carbon additive, calcined petroleum coke CPC
The description of CPC Carbon Raiser for Steel-making :
Carbon raiser is a carbon material, produced at high temperatures and used for carburization of steel and cast iron.
carbon raiseris applied during the steelmaking with low cast iron content (allow of steel and carbon) in charge in oxygen converter and electrosmelting processes. In metallurgy recarburizer (milled graphite) is widely used for slag foaming, during coal graphite production, as a filler for graphite-reinforced plastic.
As an independent product carbon raiser is used in other consuming productions.
Classification:
1. Foundry uses: Nodular iron recarburizer, grey iron recarburizer, carbon recarburizer, special recarburizer
2.Materials: metallurgical coke carbon additive, calcined coal carbon additive, petroleum coke carbon additive, graphitized carbon additive, natural graphite carbon additive, composite material carbon additive
Characteristic of CPC carbon raiser
1.It is made from well-selected anthracite which is low in content of ash, sulfur, phosphorus, high heat productivity, high chemically activation.
2. It has two main uses, namely as the fuel and additive.When being used as the carbon additive of steel-smelting, and casting. the fixed carbon may achieve above 95%.
3.Used as additive in steel making process, making graphite blocks, or machining graphite parts, etc..
| Technical indicators | 1 | 2 |
| FC(min) | 98.5% | 98.5% |
| S(max) | 0.03% | 0.05% |
| Ash(max) | 0.05% | 0.08% |
| VM(max) | 0.05% | 0.08% |
| H2O(max) | 0.5% | 0.5% |
| N | 300ppm | 700ppm |
Furnace input method:
suitable for use in an induction furnace melting,using a slightly different method according to the specific process requirements of each unit.
(1) Intermediate frequency electric furnace smelting,can add into the furnace in the lower part according to the ratio of carbon equivalent requirements or material with the recovery rate up to 95%.
(2)After melting is completed,if the carbon content isn't enough that needs to adjust, first remove furnace slag,then add carbon agent, through heating up of molten iron by electromagnetic stirring or artificial stirring to dissolve the carbon to be absorbed with the recovery up to 90%.If apply low temperature carbon growth process,that only part of charge is melted with lower melting temperature of molten iron,then add all recarburizer in liquid iron, also with a solid charge pressed it into liquid iron do not let it exposed on the surface.In this method it can reach more than 1.0% carbon of iron liquid.
Furnace output method:
(1) Graphite spray in package: use graphite to be carbon agent, blowing amount of 40kg / t, is expected to make the carbon content of the molten iron increased from 2% to 3%. As the carbon content of the molten iron is gradually increased, the amount of carbon utilization fell.Carbon increased by graphite spray,typically using nitrogen as a carrier, but under industrial conditions, using compressed air is more convenient, and oxygen in the combustion air burning produce CO,the chemical reaction heat can compensate for part of the temperature drop,and CO in reducing atmosphere is conducive to improve the effect of carbonization.
(2) Increase the carbon when iron is poured out:100-300 mesh of graphite powder can be placed inside the package,or into the tank with the flow of the iron,it should be completely stirred to make carbon dissolved and absorbed as much as possible after the iron liquid was poured out,and carbon recycling rate is about 60%.
Advantages of carbon raiser:
a. The chemical composition is pure: high carbon, low sulfur, tiny nitrogen, slightly less harmful impurity.
b. Physical form: look clean, without impurities, absorption quick, high absorptivity.
c. The microstructure form: fine quality of crystal, effectively improve casting brand and performance.
d. Product properties stable: increase carbon stable effect, absorption effect is good, and the temperature effect is clear, and don't return slag.
Applications of carbon raiser:
1.Mainly used in steelmaking in electrical stove, screening water, shipbuilding sandblast to remove rust.
2.Can reduce the cost of steelmaking effectively by replacing the traditional petroleum coke of carburant.
3.Used for steel making,can improve the Carbon content in steel-melting and Ductile iron foundry.
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