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EXTREMELY LOW CARBON STEEL PLATE EXCELLENT IN SURFACE CHARACTERISTICS, WORKABILITY, AND FORMABILITY AND A METHOD OF PRODUCING EXTREMELY LOW CARBON CAST SLAB
EXTREMELY LOW CARBON STEEL PLATE EXCELLENT IN SURFACE CHARACTERISTICS, WORKABILITY, AND FORMABILITY AND A METHOD OF PRODUCING EXTREMELY LOW CARBON CAST SLAB
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机译:极低碳钢板的表面特性,可加工性和可成形性优异,并且制备极低碳铸坯的方法
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摘要
A method of producing an extremely low carbon steel cast slab characterized by casting molten steel obtained by reducing the carbon concentration of the molten steel to 0.005 mass % or less, then adding Cu, Nb, and B to the molten steel, furthermore, and adjusting the concentration of dissolved oxygen in the molten steel to 0.01 mass % to 0.06 mass % and extremely low carbon steel plate comprised of steel containing C: 0.005 mass % or less, acid soluble Al: 0.005 mass % or less, and further Cu, Nb, and B, characterized in that the steel has fine oxides of a diameter of 0.5 μm to 30 μm dispersed in it in an amount of 1000 particles/cm2 to 1,000,000 particles/cm2.
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机译:一种极低碳钢铸坯的制造方法,其特征在于,通过将钢水的碳浓度降低至0.005质量%以下,然后向钢水中添加Cu,Nb和B,进行调整,来进行铸造。钢水中的溶解氧的浓度为0.01质量%以上且0.06质量%以下,并且由极低碳钢板构成,该极低碳钢板由C:0.005质量%以下,酸溶Al:0.005质量%以下,并且进一步含有Cu,Nb的钢构成。和B,其特征在于,钢中分散有直径为0.5μm至30μm的细氧化物,其数量为1000颗粒/ cm 2 Sup>至1,000,000颗粒/ cm 2 < / Sup>。
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