以高铝粉为耐火骨料,以苯丙乳液作为常温粘结剂,磷酸二氢铝作为高温粘结剂,以海泡石和CMC作为悬浮剂,制备了一种适用于薄壁铸件的水基消失模涂料,并应用于全盘三通管件的消失模生产中。结果表明,涂料厚度为0.4~0.6 mm,可以明显提高铸件的表面质量。该涂料适应于球铁管件DN40~DN500的铸造。 High-aluminum powder as refractory aggregate, styrene-acrylic emulsion as a binder at room temperature, aluminum dihydrogen phosphate as a high-temperature binder, sepiolite and CMC as a suspending agent, prepared for a thin-walled castings water-based Lost die coating, and used in the overall three-way pipe in the lost foam production. The results show that the coating thickness of 0.4 ~ 0.6 mm, can significantly improve the surface quality of castings. The coating is suitable for ductile iron pipe DN40 ~ DN500 casting.