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F.C 90-95% calcined anthracite coal recarburizer for casting
recarburizer
Recarburizer accordance casting purposes, materials and methods of use can be specifically divided into the following:
By casting zoning:
A ductile iron recarburizer: C> 98.5 S <0.05 mainly graphitized petroleum coke and Graphite-based electrodes. Absorption rate, the fastest absorption time.
B gray iron recarburizer: C> 90 S <0.5 mainly non-graphitized calcined petroleum coke and coal. Absorption rate of about 85%.
C steelmaking recarburizer: C 75-98 mainly calcined coal, graphite and natural graphite balls crushed.
D Special recarburizer: for brake pads and cored wire. Usually 0-0.5 / 0.5-1 mm petroleum coke.
Material:
A metallurgical coke carbon agent: for with a large cupola coke
B calcined coal recarburizer: prolific in Ningxia and Inner Mongolia C 90-93 S 0.3-0.5 (for steel and gray iron)
C petroleum coke carbon agent: prolific in Liaoning, Tianjin and Shandong C 96-99 S 0.3-0.7 (for steel, gray iron and specialty recarburizer)
D graphitized petroleum coke: prolific in Shandong and Henan, as well as imports of C 98-99.5 S 0.03-0.05 including graphitized petroleum coke and graphite-based electrodes (for ductile iron)
E natural graphite carbon agent: prolific in Hubei and Shandong, C 65-99 (used in steelmaking)
F composite recarburizer: In graphite, coke and petroleum coke as raw material artificial C 93-97 S 0.09-0.7
By using the method points:
There are smelting furnace with insulation EAF, converter to use, with a cupola and ladle with recarburizer (with the flow recarburizer)
NO. | Fixed Carbon | Sulphur | Moisture | Volatile | Graininess |
>= | <= | <= | <= | Granularity distribution 90% | |
T9805 | 98.50% | 0.05% | 0.50% | 0.50% | 1-5mm |
T9850 | 98.50% | 0.50% | 0.50% | 0.80% | 1-5mm |
T9530 | 95.00% | 0.30% | 0.26% | 1.14% | 1-4mm |
T9030 | 90.00% | 0.30% | 0.30% | 1.20% | 1-5mm |
T8020 | 80.00% | 0.20% | 1.30% | 3.50% | 1-5mm |
Usage:
1 furnace into law
A dispersion join France: according to the ratio of carbon equivalent or requirements, with the charge added to the electric furnace in the lower position, a metal material, a layer of carbon agent. When not playing recarburizer melted slag. B concentrate addition method: melting furnace charge only a part. At a lower temperature molten liquid iron case, all recarburizer iron was added in one solution, while solid charge pressed into liquid iron.
2.Outside the furnace by carbon Act 2
A packet within a graphite spray: Spray by Carbon Graphite, typically using nitrogen as a carrier, but under industrial production conditions, compressed air is more convenient, and the oxygen in the combustion air CO, the chemical reaction heat to decrease the temperature compensation section , and the reduction of CO atmosphere conducive to improving the effect of increasing carbon.
B iron when added: particle size 0.5-1.0mm recarburizer put the bag or with the flow into the tank from the iron, stir after the completion of molten iron.
Packaging and Storage:
25 kg / bag, storage must be moisture. After drying damp, drying temperature of 60-100 degrees, the drying time is 5-10 hours. Can also be customized according to customer needs, provide information on the packaging printable customers.
Product Categories : Carbon Additives
