高压容器用无缝钢管的生产现状及发展

Current Production Situation and Development of Seamless Steel Tubes for High Pressure Vessel Service

介绍了目前市场需求量较大的3类(一般、CNG用、蓄能器用)高压容器用无缝钢管的常用钢种和生产工艺现状,简述了近年来该产品的发展动态与要求。提高炼钢、精炼水平,改善钢质纯净度;采用连轧管等主要轧管工艺,提高产品尺寸精度和表面质量,将有利于该专用管材整体质量的提高和品种的扩大及发展。

Described in the paper are the commonly-used steel grades and the current situation of the manu-facturing processes for three types of high pressure vessel seamless steel tubes, i.e., the ordinary tube, the CNG-purpose tube and the accumulator-purpose tube which are mainly demanded in the market at present. Also involved are the development high lights and customer requirements for the said tubes over the recent years. It is emphasized that to improve the overall quality and expand the variety of this kind of specialty tube, some possible measures should be employed, including upgrade of steel melting and refining technologies for better steel cleanness and employment of the latest generation of tube-rolling processes like MPM process for better product dimensional accuracy and surface quality.