冷硬呋喃树脂的问世及其在型砂中的应用,使铸造工艺发生了巨大的变革。美国铸造学会曾发表评论认为:呋喃树脂砂的出现,使世界铸造工业,开始进入一个新纪元。用冷硬树脂工艺生产铸件,具有铸件表面光洁、尺寸精度高;造型简便、清砂容易;旧砂可以回用,节省烘烤能源等优点,因此在化学粘结剂体系中,冷硬呋喃树脂砂是自硬性型 The advent of chilled furan resin and its application in the sand, the casting process has undergone tremendous changes. American Foundry Society has commented that: the emergence of furan resin sand, the world foundry industry, began to enter a new era. With the cold and hard resin production of castings, castings with smooth surface, high dimensional accuracy; modeling is simple, clear sand easy; old sand can be recycled, saving energy baking, etc., so in the chemical binder system, the cold furan resin Sand is a self-hardening type