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大型柴油机气缸套质量的好坏直接影响柴油机的使用寿命和经济效益。我厂经过多年的反复研究,找到了一条提高其内表面质量的新途径——石墨砂芯低压铸造。投产后,首批压铸了34个二冲程回流扫气58/100型柴油机气缸套,内表面上没有发现任何铸造缺陷,获得了满意的结果,现简介如下。一、气缸套工作内表面的技术要求众所周知,柴油机工作时,气缸套上部内表面直接与高温高压燃气接触。因此要求气缸
The quality of large diesel cylinder liner directly affects the service life and economic benefits of diesel engine. I plant after years of repeated research and found a way to improve its quality of the inner surface of the graphite sand core low-pressure casting. After commissioning, the first batch of 34 two-stroke backflow scavenging 58/100 diesel cylinder liner, found no casting defects on the inner surface, obtained satisfactory results, are summarized below. First, the technical requirements of the inner surface of the cylinder liner As we all know, when the diesel engine work, the upper surface of the cylinder liner directly contact with high temperature and pressure gas. Therefore, the cylinder is required