常规的涂料是将耐火材料和粘接剂用大量的液体加以混合,然后再涂到泥芯和砂型的表面,最后将水分除去,才能浇注。常用的上涂料方法有:刷,擦,喷,灌,浸等方法。无论那一种方法,都要求涂料具有流变特性,并要求加入悬浮剂使涂料具有触变性等。但上涂料也会给铸件带来缺陷,诸如软化,滴痕等。水作为涂料的溶剂是很经济的,但用烘干来去掉水分又涉及能源的消耗,而其他的溶剂还存在价格、卫生和安全等问题。最近出现的一种静电粉末一“TRIBONOL”(商标),它很好 Conventional paints are made by mixing a large amount of liquid refractories and adhesives, applying them to the surface of the core and the sand mold, and finally removing the water for casting. Commonly used coating methods are: brush, rub, spray, irrigation, immersion and other methods. Either way, coatings are required rheological properties, and require the addition of suspending agents to make the paint thixotropic. But the paint will also bring defects to the castings, such as softening, drip marks and so on. Water is a very economical solvent for paints, but drying to remove moisture also involves energy consumption, while other solvents also have problems with price, hygiene and safety. Recently appeared as a static powder a “TRIBONOL” (trademark), it is good