Cinder modifier composition for casting and use method thereof

A composition and improver technology, applied in the direction of improving process efficiency, can solve the problems of weakened bonding ability, reduced purification rate, poor ductility and strength of steel materials, etc.
CN102443684AInactive Publication Date: 2012-05-09NEW CHIEN TE HANG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NEW CHIEN TE HANG
Publication Date
2012-05-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a cinder modifier composition for casting and use method thereof. The composition substantially consists of calcium oxide CaO, sodium oxide Na2O, aluminum oxide Al2O3, silica SiO2 and ferric oxide Fe2O3; the invention further provides the use method of the modifier composition in the casting process, thereby reacting the composition with the oxides in the cinder ingredientssuch as ferric oxide, magnesium oxide and manganese oxide, rising the alkalinity degree of the cinder to weaken the bonding force of the ingredients in the cinder to soften the cinder, so that the occurrence of bridging is avoided, the durability of the liner of the induction melting furnace and the purification rate of the molten steel are improved.
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Description

technical field

[0001] The present invention provides a composition used in the iron and steel casting process and its use method. More specifically, it relates to a foundry slag modifier composition and its use method that can change the characteristics of slag to improve smelting efficiency. . Background technique

[0002] Traditional electric furnace foundries use scrap iron 1 or pig iron to add additives such as (C, Si, Mn, P, S..., etc. elements) of the required target components, and directly melt into steel in the induction melting furnace 2. After the (iron) liquid is poured into the mold cavity to obtain the required casting.

[0003] Casting process such as figure 1 and figure 2 As shown, in the process, the slag produced by the impurities contained in the scrap iron 1 and the added alloy is not easy to be carried out during the melting process, so a heating program must be used to increase the melting temperature so that the impurities in the molten steel (iro...

Claims

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