| 摘要 |
1,222,262. Bearings. CLEVITE CORP. 4 June, 1968 [12 Feb., 1968], No. 26639/68. Heading F2A. [Also in Division C7] A bearing comprises a layer of compacted pre-alloyed particles each having 55-95% by wt. aluminium and having distributed therethrough 5-45% by wt. of bearing phase material consisting of a mixture comprising 0.25% by wt. Pb, 0-25% Sn, 0-25% Cd, 0-25% Bi, 0-25% Sb, bonded to a steel backing layer by a bonding layer of compacted powder particles consisting either of pure aluminium or of an aluminium alloy and one or more non-bearing phase materials or of one or more non-bearing phase materials and aluminium. The bonding and/or bearing layer may also contain Si, Cu, Mn, Mg, Ni, Fe, Zn, Cr, Zr, Ti. The bearing is made by roll cladding a strip of bonding layer and bearing layer on to a backing layer. A sacrificial layer may be provided on the bearing layer to protect it during rolling. The sacrificial layer comprises an aluminium alloy which may contain one or more of the elements Si, Cu, Mn, Mg, Ni, Fe, Zn, Cr, Zr, Ti, Cd, Sb, Bi, Pb, Sn. After roll cladding the bonding layer on to the backing layer, the sacrificial layer is removed and the strip blanked and formed to the required bearing shape. |
