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DEVELOPMENT OF THE JAPANESE STEEL REFINING TECHNOLOGY IN THESE 15 YEARS

机译:这15年的日本钢材精炼技术的开发

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In order to meet the drastic change in the economic situation in these 15 years, Japanese steel manufacturing industries have developed various new technologies. The highest investment has been made in the construction of a new steelmaking shop in Wakayama Works, Sumitomo, in 1999. Moreover, significant investments were also made in the following technologies: 1) hot metal pretreatment, 2) vacuum degasser, 3) scrap melting devices, 4) dust and sludge treatment. In this paper, the change in the steel refining technology especially hot metal dephosphorization using converter, hot metal desulfurization by mechanical stirrer, top blow lance for high speed decarburization, new type degasser to produce ultra-low carbon steel, and mixer with heating devices are shown.
机译:为了满足这15年的经济形势的激烈变化,日本钢铁制造业已开发出各种新技术。 1999年,在Wakayama Works的一家新的炼钢商店建造了最高投资。此外,还在以下技术上进行了重大投资:1)热金属预处理,2)真空脱气剂,3)废料熔化设备,4)灰尘和污泥处理。在本文中,钢精炼技术的变化尤其是热金属脱磷,采用转炉,采用机械搅拌器的热金属脱硫,高速脱碳的顶部吹气,新型脱气剂生产超低碳钢,以及带加热装置的混合器显示。

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