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为使五十年代由罗马尼亚进口的一套生产丙烷的装置产量增加一倍,需要对塔体进行改装。但原设计注明塔体出厂后不允许再进行焊接,于是炼油厂请市焊接协会组织由宝钢、上锅、电站辅机厂和重型模锻厂等单位组成攻关组,对塔体改装的焊接问题进行了科学的分析和论证,认为只要焊后进行合理的热处理,消除焊接残余应力,完全可以保持原有的使用性能。攻关
To double the production of a propane-fed plant imported by Romania in the 1950s, the tower will need to be retrofitted. However, the original design of the tower after the factory is not allowed to be welded, so the refinery please welding Association organized by the Baosteel, the pot, auxiliary power plant and heavy die forging plant and other units to form a research group, the conversion of the tower body welding Scientific analysis and demonstration of the problem, that as long as after welding a reasonable heat treatment to eliminate welding residual stress, can fully maintain the original performance. Research