对于铸件非加工表面上的冷缩、渣扎、重皮等外观不平缺陷,在喷漆刷油之前,可以用环氧树脂进行涂抹修补,而不需焊补。用环氧树脂修补铸件非加工面上的外观缺陷具有工艺过程简单,粘结牢固,耐酸,耐碱,生产效率高等优点。环氧树脂的配方及调制工艺配方见表1。按需要量称取100份环氧树脂及5份二丁脂,加温50～60℃,搅拌均匀后,加入硅铁 For cast non-machined surface shrinkage, slag, heavy skin and other appearance of the uneven defects in the paint brush before the oil can be coated with epoxy repair, without welding repair. Epoxy resin repair non-machined surface of the casting defects with a simple process, a solid bond, acid, alkali, high production efficiency and so on. Epoxy resin formulations and modulation process shown in Table 1. Weigh the required amount of 100 parts of epoxy resin and 5 parts of dibutyl fat, heated 50 ~ 60 ° C, stir, add ferrosilicon