一、前言在六十年代初,上海第三钢铁厂曾系统地进行了转炉J08RE深冲用钢的工业试验。1976年以后,在上海钢铁研究所的协作下,针对上海SH-130型货车制动底板深冲性能差冲损率高(30％)的问题,上钢第三钢铁厂开展了D08RE薄钢板的研制工作,取得了较好的结果。自1979年以来,进一步改进了稀土合金的加入方法和冶炼工艺,使钢板的深冲性能得到了进一步的稳定和提高。1980年底在上海汽车钢圈厂的密切配合下,试冲了SH I. Preface In the early 1960s, Shanghai No.3 Steel Factory systematically conducted industrial tests on deep-drawing steel for converter J08RE. After 1976, with the cooperation of Shanghai Institute of Iron and Steel, in response to the problem of high impulse loss (30%) impaired deep braking performance of Shanghai SH-130 truck, the third steel plant of Shanghai Iron and Steel Co., Ltd. launched the D08RE sheet steel Research and development, and achieved good results. Since 1979, to further improve the rare earth alloy addition method and smelting process, the deep drawing of steel has been further stabilized and improved. By the end of 1980 in Shanghai Automobile Rim Works in close cooperation with the test of the SH