Method of manufacturing vehicle part and vehicle part manufactured thereby

Patent metadata

Field	Value
Publication number	US-11618964-B2
Application number	US-202016931381-A
Country	US
Kind code	B2
Filing date	Jul 16, 2020
Priority date	Nov 1, 2019
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

Disclosed are a method of manufacturing a vehicle member including pretreating the surface of an electrically conductive plastic molded product and forming a metal plating layer on the molded product, wherein the metal plating layer includes a copper plating layer, a nickel plating layer and a chromium plating layer, which are sequentially formed, and a vehicle member manufactured by the method.

First claim

What is claimed is:

1. A method of manufacturing a vehicle member comprising:
pretreating a surface of an electrically conductive plastic molded product; and
forming a metal plating layer on the molded product,
wherein the metal plating layer comprises a copper plating layer, a nickel plating layer and a chromium plating layer, which are sequentially formed,
wherein the vehicle member formed an adhesive force between the electrically conductive plastic molded product and the metal plating layer of 2 N/cm to 10 N/cm.

2. The method according to claim 1 , further comprising: forming a nickel strike layer on the surface of the electrically conductive plastic molded product before forming the metal plating layer.

3. The method according to claim 1 , wherein the electrically conductive plastic molded product comprises:
100 parts by weight of a base resin comprising 40% to 60% by weight of acrylonitrile-butadiene-styrene (ABS) and 40% to 60% by weight of polycarbonate (PC); and
3 to 20 parts by weight of conductive carbon.

4. The method according to claim 3 , wherein the conductive carbon comprises at least one of carbon nanotubes (CNTs), graphite or graphene.

5. The method according to claim 1 , wherein the vehicle member is any one of a radiator grille, a front grille, a speaker grille, a lamp cover, an emblem, lettering, a garnish, a molding, a wheel cap, a wheel cover or a knob.

6. A vehicle member comprising:
an electrically conductive plastic molded product; and
a metal plating layer formed on the surface of the molded product,
wherein the metal plating layer comprises a copper plating layer, a nickel plating layer and a chromium plating layer which are sequentially laminated from the surface of the molded product, and
wherein the electrically conductive plastic molded product comprises:
100 parts by weight of a base resin comprising 40% by weight to 60% by weight of acrylonitrile-butadiene-styrene (ABS) and 40% by weight to 60% by weight of polycarbonate (PC); and
3 to 20 parts by weight of conductive carbon,
wherein the vehicle member has an adhesive force between the electrically conductive plastic molded product and the metal plating layer of 2 N/cm to 10 N/cm.

7. The vehicle member according to claim 6 , further comprising a nickel strike layer formed between the electrically conductive plastic molded product and the metal plating layer.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Kim Hyun Kyung
• Cha Dong Eun
• Yoon Jin Young
• Lee Hai Chang
• Park Sun Young

Classifications

• C25D3/08

  Deposition of black chromium {, e.g. hexavalent chromium, CrVI} · CPC title

• B60R13/005

  Manufacturers' emblems, name plates, bonnet ornaments, mascots or the like; Mounting means therefor · CPC title

• C25D5/56 Primary

  of plastics · CPC title

• B60B7/0046

  the surface being plated or coated · CPC title

• C25D3/12

  of nickel or cobalt · CPC title