The composite article and method for producing the aluminum material molded synthetic resin

The present invention provides a high efficiency composite article of the preparation of an aluminum material and a synthetic resin molded product which can be produced in the peeling resistance and mechanical strength greater stability robust composite article. The composite article of the production method of the present invention, by anodizing the aluminum material 1 in the electrolytic bath phosphoric acid or sodium hydroxide, anodization hole diameter which opens to the surface to mount an infinite number of holes 3 is 25nm or more to form a film 2, characterized in that joined to the state which made dressed forming biting part 6a of the molded synthetic resin 6 by injection molding in said positive in innumerable pores 3 poles oxide film 2, thereby easily composite article P having the above characteristics can be obtained.