Compound roll for thin cold rolled steel strip and method of manufacturing same
    4.
    发明授权
    Compound roll for thin cold rolled steel strip and method of manufacturing same 失效
    薄冷轧钢带复合辊及其制造方法

    公开(公告)号:US06374494B1

    公开(公告)日:2002-04-23

    申请号:US09180672

    申请日:1998-11-13

    IPC分类号: B23P1500

    摘要: The present invention provides a composite roll for cold rolling capable of rolling a cold-rolled steel strip having little edge drop, a cold-rolled stainless steel strip or a bright finish steel strip having excellent surface brightness or a silicon steel strip excellent in magnetic properties without causing breakage of roll, which is a roll in which a sleeve is fitted at a surrounding of a shaft portion with the shaft portion as a central axis and its fabrication method, in which the sleeve is constituted by previously integrating a plurality of pieces of mold members divided by a face intersecting with the central axis of the roll. Further, this is a fit roll in which a sleeve member of an outermost layer is made of WC—Co series hard alloys having Young's modulus of 35000 kgf/mm or more and Co content of 12-50 weight % and is provided with a wall thickness of 3% or more of roll radius and a ratio L/D of a length L of a barrel of the sleeve to a diameter D of the roll falls in a range of 2-10. Further, when there are one layer or more of intermediate layers between the outermost layer of the sleeve and the shaft core, the intermediate layers are arranged such that Young's modulus of the layer on the outer side is larger than Young's modulus of the layer on the inner side.

    摘要翻译: 本发明提供一种用于冷轧的复合辊,其可以轧制具有很小边缘的冷轧钢带,冷轧不锈钢带或具有优异表面亮度的亮光精钢带或具有优异磁性能的硅钢带 不会导致辊的破裂,辊是以轴部作为中心轴的轴部的周围配置有套筒的方法,其中,套筒通过预先集成多个 模具构件除以与辊的中心轴线相交的面。 此外,这是最合适的辊的套筒构件,其中,最外层的套筒构件由具有35000kgf / mm以上的杨氏模量和12-50重量%的Co含量的WC-Co系列硬质合金制成,并且设置有壁 辊半径的3%以上的厚度和套筒的长度L与辊的直径D的比L / D落在2-10的范围内。 此外,当在套筒的最外层和轴芯之间存在一层以上的中间层时,中间层被布置成使得外侧的层的杨氏模量大于该层上的杨氏模量 内侧。