Recarburizers are divided into recarburizers for ironmaking and special recarburizers for cast iron. Some other preservatives can also be used as recarburizers, such as preservatives for car brake pads. Recarburizer manufacturers say that recarburizers belong to raw materials that add recarburization effects in ironmaking and steelmaking. High-quality recarburizer is an indispensable auxiliary preservative for the production of high-quality steel. High temperature asphalt

Carbon promotion outside the furnace:

(1) Spray graphite powder in the bag

It is hoped that graphite powder will be used as a recarburizer to increase the carbon content of molten steel from 2% to 3%. As the carbon content of molten steel gradually increases, the carbon usage rate decreases. The molten iron temperature before carbonization is 1600°C, and the average temperature after carbonization is 1299°C. The introduction of graphite powder to improve the carbon composition generally uses N2 as the medium. However, under the industrial production standard, it is more convenient to apply air compression. The CO2 in the air compression is ignited to form CO. The chemical change heat can compensate a part of the reduced concentration and is beneficial to the atmosphere of reducing CO.

(2) Apply recarburizer when attacking iron

Wash with the water in the tapping tank, and mix it fully after tapping the molten steel to dissolve, digest and absorb as much carbon as possible. The carbon utilization rate is about 50%.

Used for castings, pig iron, steel castings and castings must be carbon, so, to put it bluntly, the recarburizer is to increase the carbon content in the molten iron. For example, the common raw materials for melting furnaces in smelters are cast iron, scrap steel and recycled raw materials. Cast iron has a high carbon content, but the purchase price is higher than scrap steel. Therefore, increasing the total amount of scrap steel, reducing the total amount of cast iron, and adding recarburizer can reduce the cost of castings.

Stove computer input method:

The recarburizer is suitable to be smelted in an induction heating furnace, but the actual main use will vary depending on the processing technology regulations.

(1) The recarburizers commonly used in medium frequency induction furnace smelters can be added to the heating furnace according to the proportion or carbon equivalent regulations, and the utilization rate can be above 95%;

(2) If the amount of carbon cannot be adjusted to the carbon composition, please remove the coal ash in the furnace first, and then add a recarburizer, heated molten steel, magnetic induction mixing or manual mixing to dissolve, digest and absorb the carbon. The utilization rate is about 90%. The ultra-low temperature re-nitriding process is selected, that is, only a part of the material is discharged and melted. When the temperature of the molten iron is low, all the recarburizers are added to the molten iron at one time, and the solid discharge material is used to press it into the molten iron to prevent it from being exposed to the iron. Liquid liquid layer. This method can increase the carbon content of molten steel by more than 1.0%.