195T活塞燃烧室缩孔问题探讨及解决方法

Contraction Cavity in 195T Piston Combustion Chamber

研究了在生产195T活塞毛坯时所遇到的燃烧室顶部缩孔问题,对其产生原因进行了分析,并提出了消除缩孔所采取的措施。实践证明,采取这些措施后,195T活塞的铸造成品率在90%以上,提出的措施是可行的。

The reason resulting in contraction cavity in top of 195T piston combustion chamber in practice was analyzed,and the countermeasures of eliminating the contraction cavity were taken.The product yield of 195T piston can reach up to 90% by using above mentioned countermeasures in practice.