以前在发动机结构中除锻件外唯一使用的是铸件。后来先在大型发动机上,随后又在中型发动机上采用了焊接件,如油底壳、曲轴箱、缸体、进气管和排气管、油冷却器、托架等。因此汽车发动机采用焊接缸体不但可能,而且在某些情况下还非常有利。 In the past in the engine structure except forging the only use is castings. Later on large engines, followed by medium-sized engines with welds, such as oil pan, crankcase, cylinder block, intake and exhaust pipes, oil coolers and brackets. Therefore, it is not only possible to use a welding cylinder for a car engine, but it is also very advantageous in some cases.