论文部分内容阅读
这种造型机特别适合制造有凸台或者窄砂胎的脱箱铸型。在这种造型机中,湿型砂在负压作用下射入造型室里,然后通过压缩空气气流以冲击的方式紧实,最后在抽走空气的情况下进行机械压实(参见联邦德国专利 DE—PS
This type of molding machine is particularly suitable for the manufacture of bosses with narrow bosses. In this machine, the wet sand is injected into the modeling chamber under a negative pressure and then compacted in the manner of an impact by the compressed air flow and is finally mechanically compacted with the air evacuated (see German Federal Patent DE -PS