The recarburizing agent is used in casting, which can greatly increase the amount of scrap steel, reduce the amount of pig iron or use no pig iron. In the feeding mode of electric furnace smelting, the recarburizing agent should be placed together with the charging materials such as scrap steel, and the addition of small doses can be added to the surface of the molten iron. However, it is necessary to avoid feeding large quantities into the molten iron to prevent excessive oxidation and the carbonization effect is not obvious and the carbon content of the casting is insufficient. The amount of the recarburizer added is determined according to the ratio of other raw materials and the carbon content. Different types of cast iron, choose different types of recarburizers according to your needs. The characteristics of the recarburizer itself select pure carbon-containing graphitized materials to reduce excessive impurities in the pig iron. The selection of the recarburizer can reduce the casting production cost.

Usage:

Recarburizer with low cost, high recovery rate, low content of sulfur, phosphorus, less harmful impurities ect, it is an essential part of auxiliary additives in the processing high quality steel. In the process of casting, increased the carburant can reduce quantity of pig iron, have the effect on lowering the cost of castings.

For casting, cast iron, cast steel, cast carbon will be a requirement, so recarburiser name suggests is to increase the carbon content in liquid iron, and for example, the charge is often used in the smelting of pig iron, scrap, scrap, high carbon content of pig iron, but the purchase price is relati- vely higher scrap section, put the amount of scrap is increased, reducing the amount of iron put in, plus carbon agent, can play a role to reduce the casting cost.

Recarburizer's Application:

Recarburizer Mainly used in steelmaking in electrical stove, screening water, Also for shipbuilding sandblast to remove rust,producing carbon materials.

Reduce the cost of steelmaking effectively by replacing the traditional carburant.

Also can improve the Carbon content in steel-melting and Ductile iron foundry.

The selection of suitable recarburizers can help reduce smelting production costs, improve the quality of smelting metals and castings, and allow smelting of metal plants and casting.

The recarburizer is processed by calcination and purification of petroleum coke. The appearance is round or prismatic, with metallic luster and porosity, and is a carbonaceous material. recarburizer is characterized by high carbon, low sulfur and low ash. It is an ideal carbon-adding material and reaction intermediate in metallurgical chemical, machinery and electric power industries. Petroleum coke recarburizer is a widely used recarburizer.

There are many kinds of raw materials for carburizing agents, and the production processes are also different. There are woody carbon, coaly carbon, coke, graphite and so on. The use of recarburizer in casting can greatly increase the amount of scrap steel, reduce the amount of pig iron or not.

Calcined Anthracite Coal

Model NO.	Fixed carbon (min)%	Sulfur (max)%	Ash (max)%	Volatile Matter (max)%	Moisture (max)%	N (max)%	p (max)%
1	90	0.35	8.5	1.0	0.5	0.3	0.03
2	92	0.30	6.5	1.0	0.5	0.3	0.03
3	93	0.30	6.0	1.0	0.5	0.3	0.03
4	94	0.30	5.5	1.0	0.5	0.3	0.03
5	95	0.30	4.5	1.0	0.5	0.3	0.03