一、我国无缝钢管生产机组的建设和发展过程我国第一台热轧无缝钢管机上个世纪四十年代初在当时日商经营的鞍山钢铁公司内建成投产。抗日战争胜利后,设备由前苏联拆迁回国。1953年在鞍钢原有厂房内由前苏联引进新设备重建投产,是鞍钢回复生产三大工程之一,轧机为Φ140mm自动轧管机,设计年产能力6万吨,是当时国内仅有的一台热轧无缝钢管机组。上个世纪五十年代末前后在包头钢铁公司建设一套由前苏联引进的Φ400mm自动轧管机并在 First, China’s seamless steel pipe production unit construction and development process China’s first hot-rolled seamless steel tube machine in the early 1940s at the time of the Japanese-run Anshan Iron and Steel Company built and put into operation. After the victory of the Anti-Japanese War, the equipment was demolished by the former Soviet Union to return home. In 1953, the original equipment imported from the former Soviet Union was rebuilt and put into production in the original workshop of Anshan Iron and Steel Company. It is one of the three major projects for the Anshan Iron and Steel Company to resume production. The rolling mill is Φ140mm automatic pipe rolling mill with an annual designed capacity of 60,000 tons, which was the only one Taiwan hot-rolled seamless steel pipe unit. Around the end of 1950s, Baotou Iron and Steel Company to build a set of Φ400mm automatic pipe rolling machine imported from the former Soviet Union and at