Surface cutting method and apparatus for hot-rolled steel products
    3.
    发明授权
    Surface cutting method and apparatus for hot-rolled steel products 失效
    热轧钢产品表面切割方法及装置

    公开(公告)号:US5951220A

    公开(公告)日:1999-09-14

    申请号:US809554

    申请日:1997-03-21

    摘要: A surface cutting method for a hot-rolled steel product that includes a joint portion having a predetermined breaking strength includes a step of clamping the steel product between a pair of milling cutters that are arranged on top and bottom surfaces of the steel product, while the steel product is conveyed in a longitudinal running direction. The top and bottom surfaces of the steel product are subjected to cutting by rotating the milling cutters in a rotating direction. A cutting resistance applied to the milling cutters during the cutting is determined based on parameters including type of steel, width, thickness, surface temperature and conveying speed of the steel product, as well as circumferential speed and cutting depth of the milling cutters. The cutting resistance is controlled by adjusting the cutting depth of the milling cutters by actuators connected to the milling cutters, such that a tension lower than the breaking strength of the joint portion is applied to the steel product by the cutting resistance, so as to prevent breakage of the joint portion during the cutting.

    摘要翻译: PCT No.PCT / JP96 / 02058 Sec。 371日期1997年3月21日 102(e)1997年3月21日PCT PCT 1996年7月23日PCT公布。 公开号WO97 / 03778 日本特开1997年2月6日,包括具有预定断裂强度的接合部的热轧钢制品的表面切割方法包括将钢制品夹在一对铣刀之间的步骤,该对铣刀布置在 钢产品,而钢产品沿纵向运行方向输送。 通过沿旋转方向旋转铣刀对钢制品的顶面和底面进行切割。 根据钢种的种类,宽度,厚度,表面温度和钢材输送速度以及铣削刀具的圆周速度和切削深度等参数,决定切削时施加在切削刃上的切削阻力。 通过调节与铣刀相连的致动器的切削深度来控制切削阻力,使得通过切削阻力将低于接头部分的断裂强度的张力施加到钢制品上,以防止 切割期间接头部分断裂。