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前言 14”推轧穿孔机(PPM)和限动芯棒连轧管机(MPM)在意大利达尔明公司的建成投产,是无缝钢管生产技术上的一个重大突破,他满足了近年来无缝钢管市场上对钢管质量不断提高的要求。与达尔明公司共同进行理论和实验研究以后,由因西公司设计和制造的轧管机于1978年8月建成投产,这是目前仅有的这类工厂中的一个。 1981年年初以来,达尔明厂的月产量超过设计月产量35,000吨,达到了45,000吨。产品符合API标准中所有钢级的钢
Foreword 14 "Presses and Perforating Machines (PPMs) and MPMs, which were put into operation at Dalmin in Italy, are a major breakthrough in seamless steel pipe production technology and have met the requirements of seamless Steel pipe market on the continuous improvement of the quality of the pipe requirements .Dalming company with theoretical and experimental studies, the Internation company designed and manufactured pipe rolling machine in August 1978 completed and put into production, this is the only such One of the plants, the Dümmer plant has produced more than 45,000 tons of monthly production at its designed monthly capacity of 45,000 tons since the beginning of 1981. The products meet all steel grade APIs