| 摘要 |
496,913. Making compound bearings. DEUTSCHE ROHRENWERKE AKT.-GES. March 9, 1938, No. 7359. Convention date, March 27,1937. [Class 83 (ii)] Bearing shells 1 are shaped from strips cut from steel plates coated with bearing metal 2 by the process of welding by rolling. Blocks, ingots, or slabs of steel and bearing metal are heated and rolled together to sheet form with the exclusion of substances containing oxygen from the contacting faces. Strips cut from the composite plates are hot forged to produce large bearing shells or bent in the cold in the case of smaller shells. A light pass followed by a heavy pass is preferably used in the rolling operation. A trimetal bearing may be formed from a bimetal bearing so produced. Bearing surfaces and slideways for reciprocating machine parts may be similarly produced. |
