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Carbon fiber thin film connecting method

A connection method and carbon fiber technology, applied in the field of carbon fiber film connection, can solve the problem of uneven resistance value, and achieve the effects of easy flow, high electrical conductivity, and stable heating efficiency.

Inactive Publication Date: 2018-01-05
NANJING TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the inhomogeneity of the resistance value existing in the connection process of the carbon fiber film in the prior art, the conduction of the connection, the heat dissipation capacity and the easy breakage, etc., the present invention provides a connection method of the carbon fiber film, on the basis of ensuring the connection strength of the film On the one hand, reduce the change of resistance value of the film due to connection, solve the problem of uneven local resistance value of the film due to improper connection method, realize the advantages of high conductivity and uniform heat generation and heat dissipation of carbon fiber film as a new functional composite material, and reduce carbon fiber film. damage

Method used

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Experimental program
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Effect test

Embodiment 1

[0021] 1) if figure 2 As shown, the carbon fiber film A end 1 and the carbon fiber film B end 2 to be connected are cut along the film elongation direction, the first cut 3 and the second cut 4 of the carbon fiber film A end 1 and the carbon fiber film B end 2, the length of the first cut 5 and the second cut 6 are both 25 mm, and the direction of the cut is parallel to the outer edge of the carbon fiber film. The end 1 of the carbon fiber film A is divided into the first cut part 7 of the end 1 of the carbon fiber film A, the second cut part 8 of the end 1 of the carbon fiber film A and the carbon fiber film A by the first cutout 3 and the second cutout 4 Third cutout 9 of end 1 . The carbon fiber film B end 2 is divided into the first cut part 10 of the carbon fiber film B end 2, the second cut part 11 of the carbon fiber film B end 2 and the carbon fiber film B by the first cutout 5 and the second cutout 6 Third cutout 12 of end 2 . The width of the end 1 of the carbon ...

Embodiment 2

[0025] 1) if figure 2 As shown, the carbon fiber film A end 1 and the carbon fiber film B end 2 to be connected are cut along the film elongation direction, the first cut 3 and the second cut 4 of the carbon fiber film A end 1 and the carbon fiber film B end 2, the length of the first cut 5 and the second cut 6 are both 25 mm, and the direction of the cut is parallel to the outer edge of the carbon fiber film. The end 1 of the carbon fiber film A is divided into the first cut part 7 of the end 1 of the carbon fiber film A, the second cut part 8 of the end 1 of the carbon fiber film A and the carbon fiber film A by the first cutout 3 and the second cutout 4 Third cutout 9 of end 1 . The carbon fiber film B end 2 is divided into the first cut part 10 of the carbon fiber film B end 2, the second cut part 11 of the carbon fiber film B end 2 and the carbon fiber film B by the first cutout 5 and the second cutout 6 Third cutout 12 of end 2 . The width of the end 1 of the carbon ...

Embodiment 3

[0029] 1) if figure 2As shown, the carbon fiber film A end 1 and the carbon fiber film B end 2 to be connected are cut along the film elongation direction, the first cut 3 and the second cut 4 of the carbon fiber film A end 1 and the carbon fiber film B end 2, the length of the first cut 5 and the second cut 6 are both 25 mm, and the direction of the cut is parallel to the outer edge of the carbon fiber film. The end 1 of the carbon fiber film A is divided into the first cut part 7 of the end 1 of the carbon fiber film A, the second cut part 8 of the end 1 of the carbon fiber film A and the carbon fiber film A by the first cutout 3 and the second cutout 4 Third cutout 9 of end 1 . The carbon fiber film B end 2 is divided into the first cut part 10 of the carbon fiber film B end 2, the second cut part 11 of the carbon fiber film B end 2 and the carbon fiber film B by the first cutout 5 and the second cutout 6 Third cutout 12 of end 2 . The width of the end 1 of the carbon f...

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Abstract

The invention relates to the field of application of composite materials, in particular to a carbon fiber thin film connecting method. According to the carbon fiber thin film connecting method, the mode of overlapping inlaying connection is adopted, and the problem that the resistance value is changed due to the improper connecting mode of a carbon fiber thin film is solved. According to the overlapping inlaying connection mode, firstly, the tail ends of to-be-connected carbon fiber thin films are cut in the thin film elongation direction; the carbon fiber thin films are alternately spliced according to the corresponding cutting positions, so that the tail ends of the carbon fiber thin films are alternately connected in an overlapped mode; and finally, the surface of the connecting position of the carbon fiber thin films is fixed.

Description

1. Technical field [0001] The invention relates to a method for connecting carbon fiber films by using an inlaid overlapping structure under the condition that the resistance value at the joint of the carbon fiber film is kept constant with the resistance value of the carbon fiber film body. The invention relates to the application field of composite materials. 2. Technical background [0002] As a new type of carbon material, carbon fiber has a series of properties such as low density, high strength, good rigidity, high temperature resistance, chemical corrosion resistance, radiation resistance, fatigue resistance, high electrical conductivity, high thermal conductivity, small thermal expansion, good physiological compatibility, and far-infrared radiation. Excellent properties, highly valued by the industry, known as the fourth category of industrial materials. In terms of application, carbon fiber is rarely used directly, and most of it is made into intermediate products ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/48B29C65/52
Inventor 赵志刚步超尤欣敏李会
Owner NANJING TECH UNIV