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方连铸坯三辊穿孔试验证明,133顶管机组用水压力穿孔、延伸机延伸工艺生产管坯,改用方连铸坯三辊穿孔生产新工艺生产管坯,可提高钢管坯长度和壁厚,减少管坯二次加热等,对顶管机组提高经济效益显著,还可扩大钢管品种。对有方坯连铸机的中小型型钢厂,增加无缝钢管品种,也是一种投资少,见效快的新工艺。
The three-roll perforation test of square continuous casting slab proves that the production of tube blank by 133 perforator with water pressure perforation and extension machine extension technology and the production of new technology by square roller perforation of square continuous casting slab can increase the length and wall thickness of steel tube blank, Secondary heating, pipe jacking to improve economic efficiency significantly, but also to expand the varieties of steel. Small billet continuous casting machine for small and medium-sized steel mills, increase the variety of seamless steel tubes, but also a less investment, quick new technology.