论文部分内容阅读
在毛主席关于独立自主,自力更生伟大方针的指引下,经校,所结合,并在工厂的协助下,共同研制成功了一种低合金高强度钢——18Mn2CrMoBA钢,现已在生产中正式应用。经过近十年来的生产实践证明,该钢具有良好的综合机械性能与优异的工艺(热处理、焊接及冷、热塑性变形等)性能,尤其是将热处理与热校型两个工艺相结合,既保证产品质量又简化了产品的工艺流程。以洪都机械厂生产的某一零件的回火工艺为例,如采用30CrMnSiA钢制造,在回火时不仅需用近吨重的夹具,而且每一回火炉一天仅能生产一
Under the guidance of Chairman Mao’s great principle of independence and self-reliance, with the help of the factory and the cooperation of the factory, a successful low alloy high strength steel, 18Mn2CrMoBA steel, has been successfully applied in production. After nearly 10 years of production practice has proved that the steel has a good overall mechanical properties and excellent technology (heat treatment, welding and cold, thermoplastic deformation, etc.) performance, especially the combination of heat treatment and thermal calibration of the two processes, both guaranteed Product quality and simplify the product process. Take the tempering process of a certain part produced by Hongdu Machinery Factory as an example. For example, if the steel is made of 30CrMnSiA steel, not only the near-tightening clamps are required for tempering, but only one