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A kind of graphite plate and its manufacturing method

A manufacturing method and technology of graphite plate, applied in chemical instruments and methods, materials for heat exchange, etc., can solve problems such as poor thermal conductivity and low strength

Inactive Publication Date: 2020-12-22
DATONG XINCHENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a graphite plate and its manufacturing method to solve the problems of low strength and poor thermal conductivity of the graphite plate in the prior art

Method used

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  • A kind of graphite plate and its manufacturing method
  • A kind of graphite plate and its manufacturing method
  • A kind of graphite plate and its manufacturing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] see figure 1 , is a graphite plate provided by an embodiment of the present invention, the graphite plate includes: a ceramic layer 1, an upper graphite heat-conducting layer 2 and a lower graphite heat-conducting layer 3, the upper graphite heat-conducting layer 2 is T-shaped, and the lower graphite heat-conducting layer The top of the heat conduction layer 3 is provided with a lower aluminum foil layer accommodation chamber 31, and a left aluminum foil layer accommodation chamber 21 and a right aluminum foil layer accommodation chamber 22 are arranged between the upper graphite heat conduction layer 2 and the lower graphite heat conduction layer 3, The left aluminum foil layer accommodating cavity 21 and the right aluminum foil layer accommodating cavity 22 are arranged on both sides of the upper graphite heat conducting layer 2, the lower aluminum foil layer accommodating cavity 31, the left aluminum foil layer accommodating cavity 21 and the inside of the right alum...

Embodiment 2

[0026] Embodiment 2 is a graphite plate provided by a preferred embodiment of the present invention. The graphite plate includes: a ceramic layer 1, an upper graphite heat-conducting layer 2 and a lower graphite heat-conducting layer 3. The upper graphite heat-conducting layer 2 is T-shaped. The top of the lower graphite heat conduction layer 3 is provided with a lower aluminum foil layer accommodation chamber 31, and a left aluminum foil layer accommodation chamber 21 and a right aluminum foil layer accommodation chamber 21 are arranged between the upper graphite heat conduction layer 2 and the lower graphite heat conduction layer 3. The cavity 22, the left aluminum foil layer accommodation cavity 21 and the right aluminum foil layer accommodation cavity 22 are arranged on both sides of the upper graphite heat conducting layer 2, the lower aluminum foil layer accommodation cavity 31, the left aluminum foil layer Aluminum foil layer 4 is provided inside the layer accommodation ...

Embodiment 3

[0028] Embodiment 3 is a graphite plate provided by a preferred embodiment of the present invention. The graphite plate includes: a ceramic layer 1, an upper graphite heat-conducting layer 2 and a lower graphite heat-conducting layer 3. The upper graphite heat-conducting layer 2 is T-shaped. The top of the lower graphite heat conduction layer 3 is provided with a lower aluminum foil layer accommodation chamber 31, and a left aluminum foil layer accommodation chamber 21 and a right aluminum foil layer accommodation chamber 21 are arranged between the upper graphite heat conduction layer 2 and the lower graphite heat conduction layer 3. The cavity 22, the left aluminum foil layer accommodation cavity 21 and the right aluminum foil layer accommodation cavity 22 are arranged on both sides of the upper graphite heat conducting layer 2, the lower aluminum foil layer accommodation cavity 31, the left aluminum foil layer Aluminum foil layer 4 is provided inside the layer accommodation ...

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PUM

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Abstract

The embodiment of the invention discloses a graphite plate and a manufacturing method thereof. The graphite plate comprises ceramic layers, an upper graphite heat-conducting layer and a lower graphiteheat-conducting layer, wherein a lower aluminum foil layer accommodating cavity is formed in the top of the lower graphite heat-conducting layer; a left aluminum foil layer accommodating cavity and aright aluminum foil layer accommodating cavity are formed between the upper graphite heat-conducting layer and the lower graphite heat-conducting layer; aluminum foil layers are arranged inside the lower aluminum foil layer accommodating cavity, the left aluminum foil layer accommodating cavity and the right aluminum foil layer accommodating cavity; the ceramic layers are arranged on the top of the upper graphite heat-conducting layer and at the bottom of the lower graphite heat-conducting layer. Through formation of a groove in the lower graphite heat-conducting layer, formation of the threeaccommodating cavities between the upper graphite heat-conducting layer and the lower graphite heat-conducting layer, arrangement of the aluminum foil layers inside the left aluminum foil layer accommodating cavity, the right aluminum foil layer accommodating cavity and the lower aluminum foil layer accommodating cavity, and arrangement of the ceramic layers on the top surface of the upper graphite heat-conducting layer and the bottom surface of the lower graphite heat-conducting layer, the graphite plate made of a composite material is formed, so that not only can the strength of the graphite plate material be improved, but also the heat conductivity of the graphite plate material can be improved.

Description

technical field [0001] The invention relates to the technical field of graphite plates, in particular to a graphite plate and a manufacturing method thereof. Background technique [0002] Carbon fiber has extremely high strength and has extremely high thermal conductivity in the direction of its axis, but it is difficult to be used as a plane heat dissipation material. Graphite paper is usually made of expanded graphite. Due to the irregular graphite crystallite arrangement inside, the thermal conductivity is low, usually not exceeding 400W / m•K. Another new type of graphite paper is a high-temperature heat treatment of polyimide. Polyimide is an aromatic heterocyclic polymer compound with an imide group chain link in its molecular structure. The English name is Polyimide, or PI for short. Its interior is graphite microcrystals arranged regularly in layers, which has extremely high thermal conductivity, but its thickness often does not exceed 200 μm, and its strength is low;...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/14
CPCC09K5/14
Inventor 柴万红
Owner DATONG XINCHENG NEW MATERIAL CO LTD