研制了一种新型的CO_2气硬树脂-Faset树脂砂,以Faset1为例进行了工艺性能的实验研究.为便于表征树脂的特性,提出树脂模数M的概念.研究表明,M增大,Faset树脂砂的初强度增大,但终强度、烘干强度降低;当M为0.85时,Faset树脂砂的综合强度性能较好. A new type of CO_2 gas-hard resin-Faset resin sand was developed, and the experimental study on the properties of Faset1 was carried out as an example.In order to facilitate the characterization of the resin, the concept of resin modulus M was proposed.The results show that M increases and Faset The initial strength of resin sand increased, but the final strength and drying strength decreased. When M was 0.85, the comprehensive strength of Faset resin sand was better.