Abstract: The present invention provides a method for trimming a resin film which can recycle lug portions of the resin film after trimming, can easily trim the resin film even when the resin film is made of resin which becomes fragile by cooling, and enhance the use efficiency of a laminated sheet by making resin coated portions disposed at both sides of the laminated sheet thin. At the time of coating molten resin at least on one surface of a substrate to form a resin film after making the molten resin pass between coating rolls, the lug portions of the resin film are trimmed before the lug portions of the resin film are cooled.

Abstract: The present invention provides a method for trimming a resin film which can recycle lug portions of the resin film after trimming, can easily trim the resin film even when the resin film is made of resin which becomes fragile by cooling, and enhance the use efficiency of a laminated sheet by making resin coated portions disposed at both sides of the laminated sheet thin. At the time of coating molten resin at least on one surface of a substrate to form a resin film after making the molten resin pass between coating rolls, the lug portions of the resin film are trimmed before the lug portions of the resin film are cooled.

Abstract: A resin laminated metallic sheet having excellent adhesion during forming, corrosion resistance, and impact resistance is continuously manufactured at high speed with consistent properties is constantly kept at a selected and variable traveling speed of the metallic sheet by controlling the orientation of resin film after lamination, heating the continuously traveling metallic sheet, laminating resin films on both sides of the heated metal sheet using laminating rolls, and thereafter deflecting the traveling direction of the resin laminated metallic sheet using a deflector roll disposed movably in a direction perpendicular to the direction at a right angle from traveling direction of the metallic sheet, and further, differentiating a contacting period of time in which each surface of the resin laminated metallic sheet is contacting each of the laminating rolls, or differentiating an amount of the heat of each surface portion of the resin laminated metallic sheet lost by the cooling effect due to the contact o

Abstract: It is an object of the present invention to provide a method of and an apparatus for manufacturing a resin coated metal sheet, in which it is possible to reduce bubbles included between a laminated resin film and a metal sheet even when a thermoplastic resin film is laminated onto a web-shaped metal sheet even at high speed, and the laminated resin film is excellent in formable adhesion. The method of manufacturing a resin coated metal sheet comprises the steps of heating a web-shaped metal sheet (1), which advances continuously, supplying a thermoplastic resin film (5), which is heated to below a softening temperature of the thermoplastic resin film and to at least a surface temperature of a lamination roll (7), to a nip of the lamination rolls while maintaining the thermoplastic resin film at a higher temperature than the surface temperature of the lamination roll (7), and pressure-welding the metal sheet (1) and the thermoplastic resin film (5) against each other to laminate them.

Abstract: It is an object of the present invention to provide equipment for manufacturing a laminated metal sheet, which eliminates bubbles even in high speed lamination of 200 m/min or more and is excellent in productivity. In the equipment for manufacturing a laminated metal sheet according to the present invention, a metal sheet (1) is laminated with a resin film (3) on one or both side of it by lamination rolls (2), and a support roll (5) is disposed on projected beyond a straight line between the lamination roll (2) and a film roll (6) so as to impart tension to the film (3) when the film (3) is fed to the lamination rolls (2) from the film roll (6). Further, the support roll (5) is provided directly before the lamination roll (2) so as to satisfy the relation of L.times.V.ltoreq.600 when the lamination speed is V (m/min) and the length of the resin film between the lamination rolls and the support roll is L (m).

Abstract: A method of producing a laminate board (10) involves the steps of heating a continuous belt-like metallic sheet (2) by a heating furnace (1), laminating a thermoplastic resin film (3) on at least one of the surfaces of the metallic sheet, pressing and passing both of them between a pair of laminate rolls (4 and 5), and thermally bonding the film (3) to the metallic sheet (2), wherein the laminate sheet (10) coming out from between the pair of laminate rolls (4 and 5) is pushed by a deflector roll (6) in a transverse direction so as to bias the travelling direction towards the laminate roll (4) in contact with the film (3). The invention also discloses an apparatus (A) used for his method.