一、缸盖设计改进经过为防止中型柴油机缸盖出现缩松,曾从设计上做了许多改进。铸件缺陷最多的是缩松,其次是加工表面上的气孔。缩松的产生,导致水压试验出现漏水。为解决缩松问题,采取的措施是,从设计上进行改进,调正壁厚,改变形状及改变水腔泥芯的形状和尺寸,这也是本文要讨论的重 First, the improvement of cylinder head design To prevent the emergence of medium-sized diesel engine cylinder shrinkage, has done a lot of design improvements. Casting defects are the largest shrinkage, followed by the processing of surface pores. Shrinkage, resulting in water pressure test leaks. In order to solve the problem of shrinkage, the measures taken are to improve the design, adjust the wall thickness, change the shape and shape and size of the water core, which is also the weight