【摘要】 研究并开发出一种以EPS为主要原料的无煤粉型砂粘结剂 ,实验表明乳化改性后的EPS水溶液性能优良。以EPS为基料 ,添加Ca(OH) 2 粉末 ,吹CO2 气体可得到高效气硬树脂砂。该粘结剂无酚、醛、硫、氮等有害物 ,具有溃散性好 ,强度高、抗吸湿性好 ,铸件内腔光洁等优点 ,具有广阔的应用前景。更多还原

【Abstract】 By taking EPS emulsion as main raw material, a new casting binder of non-coal molding sand was developed. EPS water-borne property by modification is fine, and available for the casting binder. The water-borne with Ca（OH）₂ powder addition by blowing CO₂ gas can get high efficiency gas-hardened resin sand. This binder has no phenol, aldehyde, sulphur, nitrogen, and has good collapsibility quality, high strength, good water-resistance, a smooth casting surface, and a wide application prospect so that it is suitable for （popularizing）.更多还原