新型水玻璃自硬砂工艺及材料是沈阳汇亚通铸造材料有限公司研制开发的新一代造型制芯工艺 ,它采用最新研制的新型水玻璃和专用酯类固化剂 ,对水玻璃粘结剂体系进行离子改性处理 ,使水玻璃砂树脂砂化 ,型砂工艺水平达到了树脂砂的技术水平。新工艺在水玻璃砂系统实现了几点突破 The new water glass self-hardening sand technology and materials is a new generation of modeling core technology developed by Shenyang Huayitong Casting Material Co., Ltd. It uses the newly developed water glass and special ester curing agent, the water glass binder system Ion-modified to make the sodium silicate sand, sand molding technology level reached the level of resin sand technology. The new technology in the water glass sand system to achieve a few breakthroughs