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在机床、汽车、拖拉机或其他机械上,都广泛地采用双金属作为轴承或轴套,因为它有下列的许多优点:(1)在滚动轴承制造尚不能达到高精度要求的今天,它是唯一能满足这一要求的材料。(2)轴承或轴套只是表面极薄的一层应用有效,故只要表面一层用有色金属就可以了,外壳部份可用普通碳素结构钢,因此能节约一些贵重的有色金属。(3)耐磨性较好;根据苏联的研究资料介绍,如果有色金属层愈薄,则耐磨性愈高。(4)因为它的外壳在弹性和刚性上都较整体式的为高,因此不易产生永久变形。(5)由于刚性和机械强度的增加,及弹性变
Bimetallic bearings or bushings are widely used on machine tools, automobiles, tractors or other machines because of the following advantages: (1) Today’s rolling bearings are the only ones that can not meet the high accuracy requirements today Materials that meet this requirement. (2) The bearing or sleeve is only a very thin layer of surface effective application, so as long as the surface layer of non-ferrous metals on it, the shell part of the common carbon structural steel, it can save some precious non-ferrous metals. (3) better wear resistance; According to the Soviet Union’s research data, if the non-ferrous metal layer is thinner, the higher wear resistance. (4) Because of its shell in both the flexibility and rigidity are more than the overall height, so difficult to produce permanent deformation. (5) Due to the increase of rigidity and mechanical strength, and elastic deformation