造型机是铸造车间的必备设备。有的造型机经长期使用后,出现不能平稳震实的现象,如震击时工作台左右摇摆,砂箱顶面型砂往一侧跑,甚至出现型裂现象,砂型硬度也很不均匀,我厂铸造车间使用的6台Z148B造型机,就不同程度地出现上述现象。经技术分析,原来是震实缸严重磨损所致。根据磨损情况及工作条件,本着修旧利废的原则,我们将震实缸内径镗至φ274~(+0.050),镶上经正火处理的球墨铸铁套筒并对磨损不很 Molding machine is an essential equipment foundry. Some molding machines after long-term use, there can not be smooth and solid phenomenon, such as shaking table shaking around the sand box to the side of the top sand running, or even split phenomenon, sand hardness is very uneven, I Plant casting workshop using six Z148B molding machine, to varying degrees, the above phenomenon. The technical analysis, the original is really shock cylinder caused by severe wear. According to the wear conditions and working conditions, in line with the principle of repairing and disposing of old and used waste, we will shock the cylinder bore diameter to φ274 ~ (+0.050), set with normalized ductile iron sleeve and not very wear