日本77年,第四期,报导了美国液氮冷冻去边的近况,指出,由成型机压出后的橡胶制品残留毛边,可用冲模等之外的手工办法去掉,这种方法作为实际上的办法被广泛采用,但花费时间多,成本费高。作为进一步的一般的去边方法,是将毛边冷却降温到脆化点使之破坏掉。在该去边的工 Japan 77 years, the fourth period, reported the status of the United States frozen liquid to the edge of the liquid nitrogen, pointed out that the rubber products by the molding machine after the residual burrs can be used manual methods other than die removed, this method as a practical The method is widely used, but it takes more time and costs more. As a further general deburring method, the burr is cooled down to the embrittlement point to destroy it. In the go-to work