precision investment casting

基本解释

The characteristics of precision investment casting with plaster mould are introduced.
介绍了石膏型熔模精密铸造的特点；
Investment casting is an advanced process to produce precision castings and colloidal silica is an important factor that affects the quality of shells.
熔模铸造是生产精密铸件的一种先进工艺，硅溶胶是影响型壳质量的重要因素。
Objective To study the compressive strength of foaming gypsum bonded investment and the permeability of the casting, in order to increase the precision of casting .
目的测定发泡石膏外包埋材料抗压强度及铸型的透气性，以便提高铸件组织的致密性和铸件精度。