随着日元升值和竞争的日趋激烈,铸造厂迫切需要提高铸件质量和降低生产成本。因此使用层压铸型的铸造方法,目前在一部分铸件上已得到了应用。所谓利用层压铸型或称中间铸型的方法,就是在造型机所造的上下型之间加入中间铸型,在中间铸型的两侧形成型腔的造型方法。这样,每一型的生产率倍增,每个铸件的浇冒口重量减半,成本大幅度降低。中间铸型应具备下述性质:铸型密度高一 With the appreciation of the yen and the increasingly fierce competition, foundries urgently need to improve the quality of castings and reduce production costs. Therefore, the use of laminated casting casting method, currently part of the casting has been applied. The so-called laminated casting or intermediate casting method, is to add the middle mold between the upper and lower type made by the molding machine, forming the molding method of the cavity on both sides of the middle mold. In this way, the productivity of each type is doubled, the weight of the pouring mouth of each casting is halved, and the cost is greatly reduced. The middle mold should have the following properties: high mold density