Method and treating hinge holder
AssigneeFih Co., Ltd
InventorWente Lai
Life of this patent
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Abstract
A method for treating a hinge holder includes the following steps: polishing a surface of the hinge holder; degreasing the hinge holder; cleaning the hinge holder; baking the hinge holder; cooling the hinge holder; screen-printing a part of the surface of the hinge holder; and plating the other part of the surface of the hinge holder with chromium or a chromium-containing compound. The plated hinge holder has a layer of chromium or chromium nitride on the surface, which renders the surface of the hinge holder more attractive and more wear-resistant. Therefore, it is not as easily scratched during assembly and frequent use.
Claims19
A method for treating a hinge holder used in a portable electronic device, comprising the steps of:
- (1) polishing a surface of the hinge holder;
- (2) degreasing the hinge holder and cleaning thereafter;
- (3) baking the hinge holder;
- (4) cooling the hinge holder;
- (5) screen-printing a part of the surface of the hinge holder with a protective substance;
- and
- (6) plating the other part of the surface of the hinge holder with a metal chosen from the group consisting of chromium and a chromium-containing compound.
A method for treating a hinge holder used in a portable electronic device, comprising the steps of:
- (1) polishing a surface of the hinge holder;
- (2) degreasing the hinge holder and cleaning thereafter;
- (3) baking the hinge holder;
- (4) cooling the hinge holder;
- (5) covering a portion of the surface of the hinge holder which is not to be plated with a protective ink;
- and
- (6) depositing chromium nitride on a remainder of the surface of the hinge holder in a vacuum.
A method for treating a hinge holder used in a portable electronic device, comprising the steps of:
- (1) polishing a surface of the hinge holder;
- (2) degreasing the hinge holder and cleaning thereafter;
- (3) baking the hinge holder;
- (4) cooling the hinge holder;
- and
- (5) plating a designated portion of the surface of the hinge holder with a metal chosen from the group assentially consisting of chromium and a chromium-containing compound.
Dependencies are inferred from the claim text.