A parting compound for green sand molding, which contains hydrocarbon oil as the principal agent and other essential components including a surfactant as a dispersant and an anionic surfactant and/or strongly basic amine as a wettability improver. This compound is used in the form of oil-in-water emulsion by diluting with water. Because of the dilutability with water, this compound can be readily stored and transported in a non-bulky state. Furthermore, the proportion of water can be increased as compared with that of the hydrocarbon oil in the step of applying the compound, thus contributing to resource saving and improvement in the resistance to fire hazard.
一种用于绿砂成型的分型剂,含有作为主剂的碳氢化合物油和其他重要成分,包括作为分散剂的表面活性剂和作为润湿性改进剂的阴离子表面活性剂和/或强碱性胺。这种化合物通过用
水稀释,以
水包油乳液的形式使用。由于可以用
水稀释,因此这种化合物可以在非散装状态下随时储存和运输。此外,在使用该化合物的步骤中,与碳氢油相比,
水的比例可以增加,从而有助于节省资源和提高抗火灾能力。