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据美《Metal Progress》杂志报导,日本一些汽车制造工程师撰文谈到了该行业中金属材料及热处理技术在近期内的一些发展动向,现择其要点介绍如下: 1.金属材料方面 大力发展微合金钢,用以代替常规调质钢制造热锻件,甚至冷拔件。与调质件相比,微合金钢件锻造后除需控制冷却外,无需进行其它处理;而调质钢除需淬火、回火外常常还需经校正、去应力等处理。故采用微合金钢可大大节省能源,减少费用,缩短
According to the report of “Metal Progress” in the United States, some Japanese automobile manufacturing engineers wrote an article about some developments of metal materials and heat treatment technologies in the industry in the near future. The main points of their choice are as follows: 1. Develop micro-alloyed steels , Used to replace the conventional quenched and tempered steel forgings, and even cold drawn parts. Compared with quenched and tempered pieces, the micro-alloyed steel pieces need not be subjected to other treatments except for the need of controlled cooling after being forged; while the quenched and tempered steel needs to be quenched and tempered, often subject to correction and stress relief. Therefore, the use of micro-alloy steel can save energy, reduce costs and shorten