Abstract: A method for the manufacture of an aluminum profile having a resin sheet material integrally laminated thereon and an apparatus to be used therefor are provided. A coated aluminum profile is subjected to the surface modification by means of a corona discharge treatment unit. Preferably, a surface portion of the aluminum profile on which an edge portion of the sheet material is to be laminated is further subjected to a local electric discharge treatment by means of a local electric discharge treatment unit. Then, a sheet material is continuously laminated on a plurality of aluminum profiles being conveyed, and thereafter the sheet material is cut at a position between the aluminum profiles by means of an electric discharge cutting device to form the sheet-laminated aluminum profile.

Abstract: A method is disclosed for producing a resin-composite profile. The method comprises providing an aluminum profile having a coating film that is capable of forming a functional group which reacts with isocyanate. A discharge treatment is performed on the film wherein the treated surface is capable of reacting with isocyanate. A urethane resin substantially formed of isocyanates and polyol is joined to the discharge treated surface.

Abstract: A method is disclosed for producing a resin-composite profile. The method comprises providing an aluminum profile having a coating film that is capable of forming a functional group which reacts with isocyanate. A discharge treatment is performed on the film wherein the treated surface is capable of reacting with isocyanate. A urethane resin substantially formed of isocyanates and polyol is joined to the discharge treated surface.

Abstract: The invention provides a novel and improved method according to which the surface of a shaped article of aluminum or an aluminum-based alloy is provided with decorative streak patterns electrolytically engraved in the surface which can be subsequently colored to increase the decorative effect with uniform distribution over whole surface of the aluminum article. The method comprises first subjecting the anodically oxidized aluminum article to an anodic direct current electrolysis in an electrolytic solution containing a specified electrolyte and then carrying out a cathodic direct current electrolysis with the aluminum article and the counterelectrode kept as before in the same electrolytic solution as used in the first anodic direct current electrolysis with reversed polarity to give uniformly distributed streak patterns on the surface of the aluminum article.