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1959年9月30日,武钢第一炼钢厂250t固定式平炉流出了第一炉钢水。当时绝大部分技术工艺,都沿袭了鞍钢的的操作,只是炉容量大了,盛钢桶大了,不是100t而是170t。因而塞棒在钢水中的时间和浇钢的时间长,以致经常漏钢。当时铁道部规定,钢轨钢必须按上注法浇铸。但是由于塞棒漏钢严重,钢轨钢也被迫下注。炼钢厂在开始的几年中,基本上是围绕漏钢进行攻关。直到1973年开始试用滑动水口,才作出了以滑动水口逐步取代塞捧的决定。随着滑动水口滑
September 30, 1959, Wuhan Iron and Steel Company 250t first fixed flat outflow furnace furnace out of molten steel. At that time most of the technical process, have followed the operation of Ansteel, but the furnace capacity, Sheng big barrel, not 100t but 170t. Thus the stopper rod in the molten steel time and casting a long time, so often break the steel. At that time, the Ministry of Railways stipulated that rail steel must be cast according to the note method. However, due to serious plug rod leakage, rail steel was forced to bet. Steel mills in the first few years, basically around the breakout. It was not until the trial of the sliding gate in 1973 that a decision was made to replace it with a sliding gate. Slide with the sliding gate