IP Library Granted Patent US 9,868,234
Granted Patent B2
US 9,868,234 · App. 14/288,538 · Granted Jan 16, 2018

Method for manufacturing carbon fiber component and carbon fiber component manufactured by using this method

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Quick Facts
Patent No.
US 9,868,234
App. No.
14/288,538
Granted
Jan 16, 2018
Kind
B2
Abstract

A method for manufacturing a carbon fiber component includes: placing a film with a texture on a first side surface into a mold, where a second side surface of the film abuts against an inner wall of the mold; injecting melted carbon fiber composite plastic into the first side surface through an injection port of the mold to obtain a component in a first shape; and obtaining a component in a second shape from the component in the first shape by using a material removal technique. Compared with the prior art, with the manufacturing method provided in the present invention, on the basis of ensuring a use strength requirement of a component, processing efficiency may be effectively increased. On this basis, the present invention further provides a carbon fiber component manufactured by using this manufacturing method.

Claims (19)

1. A method for manufacturing a carbon fiber component, comprising:

placing a film with a texture on a first side surface into a mold, wherein a second side surface of the film abuts against an inner wall of the mold;

injecting melted carbon fiber composite plastic into the first side surface through an injection port of the mold to obtain a component in a first shape; and

obtaining a component in a second shape from the component in the first shape using a material removal technique,

wherein a carbon fiber composite plastic layer in the component in the first shape is 1.0 millimeters (mm)-2.0 mm thick,

wherein a carbon fiber composite plastic layer in the component in the second shape is 0.3 mm-0.6 mm thick,

wherein the material removal technique adopts a computer numerical control (CNC) machine to remove a corresponding material, and

wherein the texture is a carbon fiber texture formed by adopting an embossing technique.

2. The method for manufacturing the carbon fiber component according to claim 1 , wherein the carbon fiber component comprises a housing of a mobile phone or a housing of a tablet.

3. The method for manufacturing the carbon fiber component according to claim 1 , wherein the carbon fiber component comprises a thin-wall type component.

4. The method for manufacturing the carbon fiber component according to claim 1 , wherein injection molding pressure of the melted carbon fiber composite plastic is not greater than 100 megaPascals (MPa), and wherein an injection speed is not greater than 60 millimeters per second (minis).

5. The method for manufacturing the carbon fiber component according to claim 1 , wherein the film comprises a polyethylene terephthalate (PET) plastic.

6. The method for manufacturing the carbon fiber component according to claim 1 , wherein the film comprises a polycarbonate (PC) plastic.

7. The method for manufacturing the carbon fiber component according to claim 1 , wherein the film is a plastic film that is embossed with a three-dimensional pattern.

8. The method for manufacturing the carbon fiber component according to claim 1 , wherein the texture of the film is made from an ink coating.

9. The method for manufacturing the carbon fiber component according to claim 1 , wherein the material removal technique forms a card fastener in the carbon fiber component.

10. The method for manufacturing the carbon fiber component according to claim 1 , wherein the material removal technique forms a hole or a slot in the carbon fiber component.

11. The method for manufacturing the carbon fiber component according to claim 1 , wherein a color of the carbon fiber component is selected from one of a plurality of different colors.

12. The method for manufacturing the carbon fiber component according to claim 1 , wherein injection molding pressure of the melted carbon fiber composite plastic is about 70 megaPascals (MPa), and wherein an injection speed is about 30 millimeters per second (mm/s).

Assignments (3)
CHANGE OF NAME Recorded Mar 11, 2019
From: HUAWEI DEVICE (DONGGUAN) CO.,LTD.
To: HUAWEI DEVICE CO.,LTD.
Reel/Frame 048555/0951 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 5, 2017
From: HUAWEI DEVICE CO., LTD.
To: HUAWEI DEVICE (DONGGUAN) CO., LTD.
Reel/Frame 043750/0393 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 11, 2014
From: YU, JIAO; DONG, DAHAI; HU, CHENGWEN
To: HUAWEI DEVICE CO., LTD.
Reel/Frame 033298/0956 →