It was proved that dimensional precision and surface roughness of the castings made from the EPC process was good, Collapsability and yieldability of the mould made of sodium silicate b...

• 实践证明,水玻璃砂实型铸造工艺可保证铸件尺寸精度和表面粗糙度,同时酯硬化水玻璃砂具有良好的退让性和较好的溃散性,发气量小,具有无毒无味、对环境无污染,生产成本低等优点。