Patent ID: 8869375
Filing Date: 2014-10-28
Classification: B21B,B29C,B60J,C25D,Y10T

Abstract:
1. A method for manufacturing a doorbelt molding for a vehicle, comprising: forming an anodized layer on a surface of an aluminum alloy plate by performing an anodizing treatment on the aluminum alloy plate; forming a clear coating layer on the anodized layer by performing a clear coating treatment on the aluminum alloy plate on which the anodized layer is formed; molding a sectional shape of an outer frame by roll-forming the aluminum alloy plate over which the anodized layer and the clear coating layer are formed; forming a molding intermediate member in which the outer frame and an inner molding are integrally formed by injection-molding a synthetic resin into the outer frame formed by the roll-forming, wherein the synthetic resin is a material of the inner molding; and bending and cutting the molding intermediate member to manufacture the doorbelt molding, wherein in the forming of the anodized layer, the anodizing treatment is continuously performed by winding the aluminum alloy plate around a winding roll and unwinding the aluminum alloy plate from an unwinding roll to immerse the aluminum alloy plate between the unwinding roll and the winding roll in an anodizing bath.