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COMPOSITION FOR IRONMAKING RAW MATERIAL, MOLDED ARTICLE FOR IRONMAKING RAW MATERIAL, IRONMAKING RAW MATERIAL FOR BLAST FURNACE AND MANUFACTURING METHOD OF IRONMAKING RAW MATERIAL FOR BLAST FURNACE
COMPOSITION FOR IRONMAKING RAW MATERIAL, MOLDED ARTICLE FOR IRONMAKING RAW MATERIAL, IRONMAKING RAW MATERIAL FOR BLAST FURNACE AND MANUFACTURING METHOD OF IRONMAKING RAW MATERIAL FOR BLAST FURNACE
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机译：炼铁原料的组成，铸铁原料的模压制品，高炉炼铁原料和高炉炼铁原料的制造方法
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摘要
PROBLEM TO BE SOLVED: To provide a composition for ironmaking raw material capable of providing ironmaking raw material having high strength at low cost, and a molded article for ironmaking raw material obtained by molding the same.;SOLUTION: The composition for ironmaking raw material is a composition for ironmaking raw material containing coal, iron ore and a binding material, wherein the binder material contains a caking prosthetic material containing ashless coal as a raw material and a strength maintaining material containing ashless coal as a raw material and having a lower softening initiation temperature than that of the caking prosthetic material. Contents of the caking prosthetic material and the strength maintaining material based on 100 pts.mass of the sum of the coal and iron ore are preferably 1 pts.mass to 10 pts.mass respectively. The softening initiation temperature of the caking prosthetic material is preferably 180°C to 400°C and the softening initiation temperature of the strength maintaining material is preferably 50°C or more and less than 180°C. The invention includes a molded article for ironmaking raw material obtained by molding the composition for ironmaking raw material.;SELECTED DRAWING: None;COPYRIGHT: (C)2017,JPO&INPIT
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