Influence Of Recarburizer in Casting Of Using Large Proportion Of Scrap Steel

In large-scale scrap casting, the melting rate of the carburizer directly affects the carbon absorption rate. Especially in electric furnaces below 1 ton, the melting speed of the carburizer is slow, which directly affects the release time of molten iron, resulting in an increase in the comprehensive cost of castings, which offsets the cost reduction effect of using scrap steel.

In terms of how to improve the melting speed of the carbon additive, the carbon additive accounts for a certain reason, the temperature control of the electric furnace accounts for a certain reason, and the furnace operation accounts for a certain reason. In terms of furnace temperature control, it is necessary to change the furnace temperature control according to the actual situation in front of the furnace, see the change of molten iron and the melting situation of the recarburizer. The working habits of the furnace workers are also very important to the relationship between the melting and absorption of the recarburizer. The furnace worker has the most real actual situation in front of the furnace. An excellent furnace worker can adjust the working method according to the actual situation to increase the melting speed of the recarburizer, thereby increasing the absorption rate of the recarburizer.

Some recarburizers with flux added into the furnace melt faster than ordinary recarburizers. However, whether the recarburizer added with flux has other adverse effects on molten iron has not yet been discussed by professional technical experts.

The high quality of the recarburizer itself is the top priority to improve the quality of a large proportion of scrap casting products. Just use small dosage of high-quality recarburizer can achieve good carbonization effect, if use the low quality carburizer, need large dosage, but the carbonization is Ineffective, and cause high scrap rate.

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