曲轴平衡块质量分布不合理，会引起发动机振动大。
The irrational distribution of crankshaft counterbalance weight causes greater vibration.
在进行活塞式压缩机设计时，关于曲轴平衡块的设计计算大多采用试算法，计算量比较大。
The tentative calculational methods is used in the design of crank shaft balancer, the workload of which is very large.
对精铸生产发动机曲轴平衡块的工艺设计进行了分析，设计出了批量生产行之有效的工艺方案。
Process design for crankshaft balance piece of engine by investment casting is analyzed. The practical process scheme of batchs of production has been made.
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