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前言在我国社会主义建设大跃进的阶段,使用我国富产合金元素以代替我国缺乏的镍铬,从而建立我国合金钢系统,已经成为非常迫切的任务了。1957年冶金部召开了两次代替镍铬合金会议,对于这个任务的完成起了显著的推动作用,本研究就是其中项目之一。目前内燃机上所使用的镍铬钢的数量是相当可观的,因此研究代替内燃机上所使用的镍铬钢是有很重要的经济意义。上海柴油机厂如以代用钢制造连杆螺钉,则每年可节
Preface It is a very urgent task to establish the alloy steel system in our country at the stage of the great leap forward of our country’s socialist construction by using our country’s rich-producing alloying elements instead of the lack of nickel-chromium in our country. In 1957, the Metallurgical Department held two meetings instead of Ni-Cr alloy, which played a significant role in promoting the completion of this task. This study is one of the projects. At present, the quantity of Ni-Cr steel used on internal combustion engine is quite considerable, so it is of great economic significance to study the replacement of Ni-Cr steel used on internal combustion engines. Shanghai Diesel Engine Factory, such as the use of alternative steel connecting rod screws, the festival can be annually