冷轧冷拔高精度专用无缝钢管包括液压件用管、潜油电机轴与壳体用管、柱塞式润滑油泵壳体用管、消音器和换热器等部件用管。这类钢管对尺寸精度、表面光洁度、力学性能等要求很高,生产难度大,目前,大部分依靠进口。成都无缝钢管厂从1987年开始对这类产品进行研究。1992年,该产品被列为四川省重点新产品,经过多年努力,现已完成研究指标,生产冷轧冷拔高精度专用无缝钢管1856.6t。产品经用户和有关部门检测,质量达到国际同 High-precision cold-drawn cold drawn high-precision seamless steel tubes, including hydraulic components with the tube, submersible motor shaft and the shell with the tube, plunger pump housing lubricants, silencers and heat exchangers and other components with the tube. Such steel pipe on the dimensional accuracy, surface finish, mechanical properties and other demanding, difficult to produce, at present, most rely on imports. Chengdu Seamless Steel Tube Plant from 1987 on the study of such products. In 1992, the product was listed as a key new product in Sichuan Province. After many years of hard work, the research index has been completed to produce 1856.6t of cold-drawn and drawn high-precision special seamless steel pipe. Product testing by the user and the relevant departments, the quality of the same international