THERMOPLASTIC RESIN-COATED METAL PLATE, AND METHOD OF AND APPARATUS FOR MANUFACTURING THE SAME

摘要

A resin-coated metal plate having a high processing adhesion, a high corrosion resistance and a high impact resisting processability, a resin-coated metal plate capable of being manufactured continuously at a high speed, and free from the fluctuation of properties even when a feed rate of a metal plate is varied, and a method of and an apparatus for manufacturing such resin-coated metal plates are provided. A belt type metal plate fed continuously is heated, and resin films are laminated on both surfaces of the resultant metal plate by pressure-bonding the former to the latter by using a pair of laminating rolls. The moving direction of the resin-coated metal plate is then deflected by using a deflector roll provided so that the deflector roll can be moved in the direction perpendicular to the moving direction of the metal plate, whereby a difference is generated between the time at which one surface of the resin-coated metal plate contacts the relative laminating roll and the time at which the other surface of the resin-coated metal plate contacts the relative laminating roll. Thus, the calorific values taken out from the two surfaces of the resin-coated metal plate due to the cooling effect produced when these surfaces contact the laminating rolls are rendered different, and the orientation of the laminated resin films is thereby controlled to a desired condition.