Heat treated cold rolled steel strapping
    2.
    发明授权
    Heat treated cold rolled steel strapping 失效
    热处理冷轧钢带

    公开(公告)号:US4816090A

    公开(公告)日:1989-03-28

    申请号:US71293

    申请日:1987-07-09

    IPC分类号: C21D1/18 C22C38/12 C22C38/14

    摘要: A method of heat treating cold rolled steel strapping comprising rapidly heating the strapping to the dual phase temperature range at a rate of the order of 100.degree. C. per second, with little or more soaking, and rapidly cooling the strapping at a rate of the order of 1000.degree. C. per second to form a microstructure comprising a matrix of recovery annealed cold work ferrite containing martensite and carbides dispersed through the matrix. A heat treatment line for performing this method is described. A heat treated cold rolled steel strapping produced by the method is also described. The steel from which the strapping is made preferably has less than 0.2.degree. C. and includes Ti in the range 0.06 to 0.15% preferably about 0.08% and Nb in the range 0.02 to 0.05% preferably about 0.04%.

    摘要翻译: 一种冷轧钢带的热处理方法,其特征在于,以约100℃/秒的速度将所述捆扎物快速加热至双相温度范围,同时进行少量或多次均热,并以一定比例快速冷却捆扎带 订单为1000℃/秒以形成包含通过基体分散的含有马氏体和碳化物的回收退火的冷加工铁素体基体的微结构。 描述了用于执行该方法的热处理线。 还描述了通过该方法生产的经热处理的冷轧钢带。 制成捆扎的钢优选地低于0.2℃,并且包括0.06-0.15%,优选约0.08%的Ti和0.02-0.05%,优选约0.04%的Nb。