我厂生产的2105型柴油机机体重约113公斤,铸造翻砂中是用震实机震实型砂的。旧工艺对震实硬度没有严格的测量标准,仅靠目测和手摸,凭经验决定是否适当。铸型质量没有保证,容易出废品,原因与铸型松实度直接有关,太松会造成跌箱、跌砂、多肉等缺陷;太实会造成气泡、穿孔等废品。因此砂型的松实度应取适中,而震实机的震 I plant the 2105-type diesel engine body weight of about 113 kilograms, foundry foundry is the use of shocking machine real sand. The old technology on the hard real seismic hardness measurement standards, only by visual inspection and hand touch, empirically decide whether it is appropriate. Casting quality is not guaranteed, easy to waste, the cause is directly related to the mold pine solidity, too loose will cause box, sand, meat and other defects too; will cause bubbles, perforation and other waste. Therefore, the looseness of the sand should be taken modestly, while the shock of the real machine