precision investment casting

基本解释

The characteristics of precision investment casting with plaster mould are introduced.
介紹了石膏型熔模精密鑄造的特點；
Investment casting is an advanced process to produce precision castings and colloidal silica is an important factor that affects the quality of shells.
熔模鑄造是生産精密鑄件的一種先進工藝，矽溶膠是影響型殼質量的重要因素。
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 .
目的測定發泡石膏外包埋材料抗壓強度及鑄型的透氣性，以便提高鑄件組織的致密性和鑄件精度。