1概述内燃机机体和气缸盖等铸件的铸造工艺孔经机加工后，需用金属堵塞涂上密封胶压入封闭，经压力试验，保证各种工况条件下密封的可靠性。国内目前除引进的自动装配机外，涂胶和压堵塞的装配作业仍停留在手工作业水平上，难以避免漏涂胶、局部缺胶、胶渡难集甚至流入油道中的 1 Overview Internal combustion engine body and cylinder head and other castings casting process holes are machined, the need to use metal plug coated sealant pressed into the closed, the pressure test to ensure that the sealing conditions under various conditions of reliability. In addition to the domestic introduction of automatic assembly machines, glue and pressure blockage assembly operations remain at the level of manual operations, it is difficult to avoid leakage of glue, the local lack of plastic, rubber transition difficult to set or even flow into the oil in the