The implementation of recarburizers has a history of several decades, from the most common carbon powders, coal recarburizers to today's high-quality graphitized recarburizers. As an electrode recarburizer, graphite can be described as an earthshaking alternative We have made great progress not only in the construction of consumer technology, but also in the analysis of the use of teaching effects. From the initial low price to the current high price, it shows the update of data and the choice of data quality.

 

Its real practice stops the application of consumer enterprises, the influence of carburizers on smelting and the same chemical components in the process of use, adopting certain research and discussion methods through stepwise smelting process design and the proportional relationship between different ingredients, such as For a good carbon increase effect, the electric furnace uses carbon increase technology, and the cupola uses high temperature smelting and disposal technology. The main factors of the influence of carburant on smelting are the following three aspects.

 

1. Hot metal is condensed by carbon technology, especially in smelting furnace, and graphite core can be increased. The participation of different silicon carbides in the cupola smelting can combine the graphite nucleus by increasing the long-term effect of the molten iron, and at the same time can reduce the oxidation of the molten iron.

 

2. Carbon is the best measure to avoid or reduce shrinkage. Because the molten iron has the function of graphitization shrinkage during solidification, a good graphitization will reduce the shrinkage of the molten iron to take advantage.

 

3. Under the condition of high carbon content, in order to obtain high-strength gray cast iron castings, the use of carburizing agents to participate in the entire process of waste coagulation, more pure iron, efficient casting data. Condensation uses oil-free and clean materials to prevent leakage or excessive scumming.

 

In the past, the iron filings of some different manufacturers who stopped participating in the smelting process contained oil, which easily led to carbon accumulation. In the cold carbon accumulation part of the lining, even the insulation layer is accumulated. Since the lining has not been fully sintered, the back lining penetrates, CO produces CO → C + O 2 ↑ response to generate C lining accumulation in the cold or hot insulation data pores. When carbon build-up occurs, it will cause leakage of electricity that affects the grounding system of the furnace body, forming a coil that emits sparks. Switching to pure materials can stop it. Sometimes, due to the disorder of the outsourcing material and the surface coated with paint, lime, coal and other substances, the scum is decomposed, and the reduced manpower and material resources are consumed in the later slag removal work.

 

In fact, while understanding the role of the carburizer, it is necessary to understand how the carburizer is used, to correctly understand the problems in the smelting of the carburizer, and to reduce some unnecessary losses. effect.