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早期二冲程发动机气缸几乎都是铸铁的,但是摩托车要求的转速和功率特别高,为了改进冷却性能,大多采用了导热性好的铝气缸。其中,进一步根据用途不同,现在实际采用了如下多种加工方法:(1)将铸铁缸套热压配合的所谓热压配合方式:(2)将铸铁缸套与气缸熔敷的熔敷方式,例如阿尔芬法等(先将铁坯件浸镀上一层铝膜,然后放入铸型再浇上铝液,获得夹心铝铸件):(3)在铝缸
Early two-stroke engine cylinders were mostly cast iron, but the speed and power requirements of motorcycles were particularly high, in order to improve the cooling performance, most of the use of good thermal conductivity aluminum cylinder. Among them, further according to the use of different, now the actual use of a variety of processing methods are as follows: (1) the cast iron liner with the so-called hot press fit with the way: (2) For example, Alfa method (first iron billet immersed in a layer of aluminum film, and then placed in the mold and then poured on the liquid aluminum to obtain a sandwich aluminum casting): (3) in the aluminum cylinder