METHOD FOR BONDING PLASTIC MOLD MEMBER ONTO METAL HOUSING

• US 20130075941A1
• Filed: 04/16/2012
• Published: 03/28/2013
• Est. Priority Date: 09/28/2011
• Status: Abandoned Application

• Current Assignee: Ichia Technologies Incorporated
• Original Assignee: Chang-Li Liu
• Inventors: Chang, Yu-Chih, Yu, Shih-Pu, Liu, Chang-Li
• Application Number:
  US13/447,294
• Publication Number:
  US 20130075941A1
• Time in Patent Office: Days
• US Class Current: 264/1.7
• CPC Class Codes: B24C 1/06 for producing matt surfaces, e.g. on plastic materials, on glass
• CPC Class Codes: B29C 45/14311 using means for bonding the coating to the articles B29C45/14795 takes precedence
• CPC Class Codes: B29C 45/1671 with an insert

Abstract

A method for bonding a plastic member onto a metal housing is provided. A metal housing having an inner surface and an outer surface is prepared. A hollow-carved area is provided on the metal housing. The inner surface of the metal housing is subjected to physical process, thereby forming a bonding area. An adhesive layer is formed on the bonding area. A plastic mold member is formed on the adhesive layer by performing a first plastic injection molding. An optical plastic member is molded on the hollow-carved area by performing a second plastic injection molding.

Claims

1. A method for bonding a plastic member onto a metal housing, comprising the steps of:

preparing a metal housing having an inner surface and an outer surface, wherein the metal housing has at least one hollow-carved area;

subjecting the metal housing to a physical processing, thereby forming a bonding area at the inner surface;

forming an adhesive layer on the bonding area;

performing a first injection molding to bond a plastic mold member on the adhesive layer; and

performing a second injection molding to form an optical plastic member in the hollow-carved area.

2. The method for bonding a plastic member onto a metal housing according to claim 1, wherein the physical processing comprises sandblasting, laser etching, plasma etching, UV Plasma etching, or die pressing.

3. The method for bonding a plastic member onto a metal housing according to claim 1, wherein the adhesive layer is formed by a spraying, a dispensing, or a printing method.

4. The method for bonding a plastic member onto a metal housing according to claim 1, wherein the adhesive layer comprises an adhesive.

5. The method for bonding a plastic member onto a metal housing according to claim 1, wherein the adhesive layer comprises an adhesive bonding primer.

6. The method for bonding a plastic member onto a metal housing according to claim 1, wherein a baking process is performed after forming an adhesive layer on the bonding area.

7. The method for bonding a plastic member onto a metal housing according to claim 1, further comprising a surface finishing or a surface treatment.

8. The method for bonding a plastic member onto a metal housing according to claim 1, further comprising:

forming a decorating layer on the outer surface of the metal housing.

9. The method for bonding a plastic member onto a metal housing according to claim 8, wherein the decorating layer is formed by printing, coating or anodized aluminum treatment, thereby obtaining colors, patterns or decorative designs on the outer surface of the metal housing.

10. The method for bonding a plastic member onto a metal housing according to claim 1, wherein the optical plastic member comprises polycarbonate (PC) resin or Polymethylmethacrylate (PMMA) acrylic material.

11. The method for bonding a plastic member onto a metal housing according to claim 1, further comprising:

providing a patterned light-guiding structure on an inner side of the optical plastic member.

12. The method for bonding a plastic member onto a metal housing according to claim 11, wherein the patterned light-guiding structure is molded simultaneously with said optical plastic member during the second injection molding.

13. A method for bonding a plastic member onto a metal housing, comprising the steps of:

preparing a metal housing having an inner surface and an outer surface, wherein the metal housing has at least one hollow-carved area; and

injection molding a plastic mold member and an optical plastic member on a bonding area at the inner surface and on the hollow-carved area respectively.

14. The method for bonding a plastic member onto a metal housing according to claim 13, further comprising:

subjecting the metal housing to a physical process, thereby forming the bonding area; and

forming an adhesive layer on the bonding area.

15. The method for bonding a plastic member onto a metal housing according to claim 13, wherein the physical process comprises sandblasting, laser etching, plasma etching, UV Plasma etching, or die pressing.