PRE-PROCESSING METHOD FOR ADHERING RUBBER LAYER TO INNER AND OUTER SURFACES OF CYLINDRICAL OBJECT-OF-ADHERENCE

摘要

The method includes forming, on a bonding object surface of a bonding object, an adhesive layer for bonding an unvulcanized rubber onto the bonding object surface, through use of an adhesion sheet and a fixing device. The fixing device includes an enclosed chamber. The fixing device is configured such that a gas in the chamber can be discharged and a gas can be introduced into the chamber. The fixing device includes a table which is arranged in the chamber and on which the bonding object can be placed. The adhesion sheet includes a top coating adhesive layer formed on a film and an undercoating adhesive layer formed on the top coating adhesive layer.

主权项

1. A method of forming, on an inner surface of a hollow portion of a bonding object having the hollow portion, an adhesive layer for bonding an unvulcanized rubber layer onto the inner surface of the hollow portion,
the method comprising the steps of: bonding, onto the inner surface of the hollow portion of the bonding object, an undercoating adhesive layer of an adhesion sheet including a top coating adhesive layer formed on a film and the undercoating adhesive layer formed on the top coating adhesive layer; heating the bonding object having bonded thereonto the adhesion sheet; and uniformly pressing the adhesion sheet through pressing of the film by inserting an elastic pressing member into the hollow portion and compressing the elastic pressing member in an axis direction to deform the elastic pressing member in a radial direction.