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用新的环氧树脂粘结的型芯,有很高的强度和良好的溃散性能,可用来制造复杂的发动气缸盖等铸件,因而新的环氧树脂是比较理想的型芯粘结剂。用树脂做粘结剂制成的型芯,可广泛地用于生产发动机气缸盖等空心断面的铸件。传统的酚醛树脂之所以能广泛用作型芯粘结剂,是因为在浇注时,它有很高的强度
The new epoxy resin is the ideal core binder because of its high strength and good collapsible properties. It can be used to make complex castings such as engineered cylinder heads. Core made of resin binder can be widely used in the production of engine cylinder head and other hollow cross-section of the casting. The traditional phenolic resin is widely used as a core binder because it has high strength when cast