正样机箱体精密铸造

Box for Positive Sample Machine in Investment Casting

用金属型板和石墨型芯改良砂型铸造工艺 ,制作正样机的箱体铸件 ,与熔模石膏型铸件比较 ,具有生产费用低。

Metal melding board and graphite core were used for impropving sand casting technology. Impmved sand mold used for replacement of plaster mold in investment casting for box of positive sample machine has the advantages of low cost, high dimensional accuracy and low surface roughness.