Method for producing corrosion-stable and optionally colour/metallically coated and decorative plastic components

Abstract

A method for the manufacture of plastic components that are corrosion-stable, optionally coated in metallic color and decorative first manufactures the components to be coated from a galvanizable plastic in the plastic injection-molding process and then subjects them to a chemical pretreatment, in which a first conductive metal layer is deposited and then an aluminum surface is deposited galvanically. The deposited aluminum surface is oxidized in a subsequent aluminum anodization process.

1 . A method for the manufacture of plastic components that are corrosion-stable, optionally coated in metallic color and decorative (h), in which the components to be coated are first manufactured from a galvanizable plastic in the plastic injection-molding process (a) and are then subjected to a chemical pretreatment (b), in which a first conductive metal layer is deposited (c) and then an aluminum surface is deposited galvanically (e), wherein the deposited aluminum surface is oxidized in a subsequent aluminum anodization process (f), wherein the pores of the anodized layer are compacted by boiling in demineralized water. 
     
     
         2 . The method according to  claim 1 , wherein the chemical pretreatment (b) is carried out according to a conventional plastic galvanization with the following processes:
 pickling with oxidative metal salt solutions for roughening of the surface,   Activation with metal ions, e.g. palladium, as well as   autocatalytically proceeding chemical metallization (c) for formation of a first conductive layer of copper, nickel or another metal.   
     
     
         3 . The method according to  claim 1 , wherein the chemical pretreatment (b) is performed according to selected technologies with mechanical and chemical roughening, swelling and pickling and other technologies for providing an adhesion mechanism for a first conductive metal layer. 
     
     
         4 . The method according to  claim 1 , wherein, in a subsequent first electrolytic galvanic process (d), at least one metal layer is applied on the pretreated components, on which metal layer aluminum is deposited in a further process step (e). 
     
     
         5 . The method according to  claim 4 , wherein the aluminum is deposited in a galvanic process step. 
     
     
         6 . The method according to one of the  claim 1 , wherein aluminum is deposited directly (e) in an electrolytic galvanic process on the components pretreated in such a way. 
     
     
         7 . The method according to  claim 1 , wherein the deposited aluminum is oxidized to an aluminum oxide in a subsequent aluminum anodization process (f). 
     
     
         8 . The method according to  claim 7 , wherein the aluminum layer oxidized to an aluminum oxide is colored (g). 
     
     
         9 . (canceled)