射壓(ya)(ya)式造型(xing)(xing)(xing)(xing)(xing)(xing)機(ji)(ji)是利(li)用壓(ya)(ya)縮空(kong)氣將型(xing)(xing)(xing)(xing)(xing)(xing)砂(sha)均(jun)勻地(di)射入砂(sha)箱(xiang)(xiang)預緊實，然(ran)后再施加(jia)壓(ya)(ya)力進行(xing)壓(ya)(ya)實。常用的有(you)垂直(zhi)分型(xing)(xing)(xing)(xing)(xing)(xing)無箱(xiang)(xiang)射壓(ya)(ya)造型(xing)(xing)(xing)(xing)(xing)(xing)機(ji)(ji)和水平分型(xing)(xing)(xing)(xing)(xing)(xing)脫箱(xiang)(xiang)射壓(ya)(ya)造型(xing)(xing)(xing)(xing)(xing)(xing)機(ji)(ji)。垂直(zhi)分型(xing)(xing)(xing)(xing)(xing)(xing)無箱(xiang)(xiang)射壓(ya)(ya)造型(xing)(xing)(xing)(xing)(xing)(xing)機(ji)(ji)造型(xing)(xing)(xing)(xing)(xing)(xing)不用砂(sha)箱(xiang)(xiang)，型(xing)(xing)(xing)(xing)(xing)(xing)砂(sha)直(zhi)接(jie)射入帶有(you)模板的造型(xing)(xing)(xing)(xing)(xing)(xing)室，所造砂(sha)型(xing)(xing)(xing)(xing)(xing)(xing)尺(chi)寸精度高，砂(sha)箱(xiang)(xiang)兩面(mian)都有(you)型(xing)(xing)(xing)(xing)(xing)(xing)腔，生產率高，但下芯困(kun)難，對型(xing)(xing)(xing)(xing)(xing)(xing)砂(sha)質量要求嚴格。水平分型(xing)(xing)(xing)(xing)(xing)(xing)脫箱(xiang)(xiang)射壓(ya)(ya)造型(xing)(xing)(xing)(xing)(xing)(xing)機(ji)(ji)利(li)用砂(sha)箱(xiang)(xiang)進行(xing)造型(xing)(xing)(xing)(xing)(xing)(xing)，砂(sha)型(xing)(xing)(xing)(xing)(xing)(xing)造好后合型(xing)(xing)(xing)(xing)(xing)(xing)脫箱(xiang)(xiang)，下芯方(fang)便，生產率高。