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    • 6. 发明公开
    • 베어링용 알루미늄합금판의 제조방법
    • 制造用于轴承的铝合金板的方法
    • KR1020020046170A
    • 2002-06-20
    • KR1020010076805
    • 2001-12-06
    • 다이도 메탈 고교 가부시키가이샤
    • 가고하라유키히코후지타마사히토야마모토고이치시바야마다카유키
    • B23K20/04
    • C22C21/003B21B31/07B21B2003/001B22D11/008B32B15/016C22C21/02F16C33/121Y10T29/302
    • PURPOSE: A method of making an aluminum alloy plate for bearing is provided in which even when an aluminum alloy having a low rolling workability is used for the bearing alloy layer, the bonding layer can be cladded onto the bearing alloy layer at a high reduction ratio while occurrence of crack is prevented. CONSTITUTION: In a method of making an aluminum alloy plate for bearing which is made by cladding a bonding layer comprising a pure aluminum or an aluminum alloy excluding Sn onto a bearing alloy layer comprising an aluminum alloy containing Sn, the method comprises the steps of fitting a concave portion of a first roll in a convex portion of a second roll, the first roll having both axial ends with large diameter portions (23b) respectively, the second roll having both axial ends with small diameter portions (24b) respectively; and passing superposed plates formed into the bearing alloy layer and the bonding layer respectively through a roll gap defined between the concave and convex portions and closed by the large diameter portions of the first roll so that the plates are pressurized at a reduction ratio of not less than 50% while both widthwise ends of each plate is restricted by the large diameter portions of the first roll respectively such that the bonding layer is cladded onto the bearing alloy layer.
    • 目的:提供一种制造用于轴承的铝合金板的方法,其中即使将具有低滚动加工性的铝合金用于轴承合金层,也可以以高的减速比将接合层包覆在轴承合金层上 同时防止裂纹发生。 构成:在通过将包含纯铝或除Sn以外的铝合金的接合层包覆在由含有Sn的铝合金的轴承合金层构成的轴承用铝合金板的方法中,该方法包括以下步骤: 第一辊的凹部,在第二辊的凸部中的第一辊分别具有两个具有大直径部分(23b)的轴向端部,第二辊分别具有两个具有小直径部分(24b)的轴向端部; 并且通过形成在所述轴承合金层和所述接合层中的叠置板通过限定在所述凹凸部之间的辊间隙通过所述第一辊的大直径部分封闭,使得所述板以不小于 超过50%,而每个板的两个宽度端分别受到第一辊的大直径部分的限制,使得接合层包覆在轴承合金层上。