公开(公告)号：US20020095787A1

公开(公告)日：2002-07-25

申请号：US10102920

申请日：2002-03-22

申请人： Sango Co., Ltd.

发明人： Tohru Irie ,  Masashi Ota

IPC分类号： B21D051/16

CPC分类号： F01N13/18 ,  F01N3/2853 ,  F01N3/2857 ,  F01N2450/02 ,  Y10T29/49345 ,  Y10T29/49925

摘要： The present invention is directed to a method of producing a catalytic converter which comprises the steps of providing a shock absorbent member around an outer periphery of a catalyst substrate, inserting the catalyst substrate and the shock absorbent member into a cylindrical workpiece, fixing the cylindrical workpiece to prevent the cylindrical workpiece from being rotated about a longitudinal axis thereof, reducing a diameter of a body portion of the cylindrical workpiece covering at least a portion of the shock absorbent member to hold the catalyst substrate in the cylindrical workpiece, spinning at least an end portion of the cylindrical workpiece, by means of a plurality of spinning rollers, which are evenly positioned around the outer periphery of the end portion, and which are revolved about the axis of the end portion along a common circular locus, and moved in a radial direction of the end portion, and moving the plurality of spinning rollers in an axial direction of the end portion to reduce a diameter of the end portion along the axis thereof, and thereby form a neck portion of the cylindrical workpiece.

摘要翻译： 本发明涉及催化转化器的制造方法，其特征在于，包括以下步骤：在催化剂基材的外周附近设置减震部件，将所述催化剂基板和所述冲击吸收部件插入圆筒状的工件，将所述圆筒状工件 为了防止圆柱形工件围绕其纵向轴线旋转，减小圆柱形工件的主体部分的直径，其覆盖至少一部分冲击吸收件以将催化剂基底保持在圆柱形工件中，将至少一端 圆筒状工件的一部分，通过多个纺丝辊，其均匀地定位在端部的外周周围，并且沿着共同的圆形轨迹围绕端部的轴线旋转，并且以径向 端部的方向，并且使多个纺丝辊在端部的轴向方向上移动 部分，以减小端部沿其轴线的直径，从而形成圆柱形工件的颈部。