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本文介绍日本在1977年以前连铸板坯生产上最大可能地实现减少钢中氧化物夹杂的措施及所做的研究工作.研究对象主要是福山厂生产UOE管用板和镀锡罐头薄板.1. 1977年前日本为生产低夹杂板坯所采取措施夹杂物来源很多,促使钢材产生缺陷的大型夹杂物大部分是外来的.以下是常用的减少夹杂物的措施.1.1 钢液注入中间罐以前的措施控制转炉吹炼终点钢中含碳和钢液温度,以降低钢中含氧量.为控制钢中铝含
This paper introduces the measures and research work done by Japan to reduce the oxide inclusions in steel to the greatest extent possible before the production of continuous casting slab before 1977. The research object is mainly the production of UOE pipe sheet and tin can sheet in Fukuyama Plant. Measures to be taken by Japan to produce low-slab inclusions prior to 1977 Many sources of inclusions lead to the majority of large inclusions that cause defects in the steels. The following are commonly used measures to reduce inclusions.1.1 Prior to the injection of molten steel into the intermediate tank Measures to control the converter blowing furnace end carbon steel and liquid temperature, in order to reduce the oxygen content in the steel.In order to control the steel containing aluminum