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A kind of production equipment of graphene heat sink and production process of graphene heat sink with controllable thickness

A production process and production equipment technology, applied in the field of graphene heat sink production process, can solve the problems of high process, time-consuming, low production capacity, etc., and achieve the effects of low preparation temperature, reduced production cost, and high thermal conductivity

Active Publication Date: 2022-07-15
信骅(上海)器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process described above solves the problem of producing graphene heat sinks with a thickness greater than 100 μm, which requires the use of coating equipment for single-layer multiple coatings, resulting in high energy consumption, time-consuming, low production capacity, and repeated procedures that cause the film of the heat dissipation film There are pinhole-shaped bubble-type defects and unevenness on the surface. The technology of the present invention is easy to mass-produce, with a high upper limit of thickness and controllable and adjustable thickness.

Method used

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  • A kind of production equipment of graphene heat sink and production process of graphene heat sink with controllable thickness
  • A kind of production equipment of graphene heat sink and production process of graphene heat sink with controllable thickness
  • A kind of production equipment of graphene heat sink and production process of graphene heat sink with controllable thickness

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Embodiment 1

[0039] The present embodiment provides a production equipment for a graphene heat sink, refer to figure 1 , figure 2 , including stirring kettle 1, gland 2, slitting die 3, disc storage bucket hook 4, cross steel shaft 5, disc storage bucket 6, heating device 7 and workbench 8;

[0040] Among them, the stirring kettle 1, the gland 2, the slitting die 3, and the hook 4 of the disc type storage bucket are respectively installed in the four directions of the cross steel shaft 5; the disc type storage bucket 6 Including a barrel wall 61 and a base 62, the barrel wall 61 and the base 62 are detachably connected, the center of the base 62 is provided with a raised through hole 63, and the height of the raised through hole 63 is consistent with the height of the barrel wall 61; the The disc-type storage tank 6 is placed inside the heating device 7 .

Embodiment 2

[0042] The present embodiment provides a production process of a graphene heat sink with controllable thickness, comprising the following steps:

[0043] (S1) Graphene slurry, epoxy resin and polyethylene glycol with a monolayer ratio of 60% and a solid content of 1 wt.% are prepared to obtain a mixed slurry;

[0044] (S2) the described mixed slurry is injected into the double-spiral stirred tank 1 with a volume of 50 L, after stirring and auxiliary defoaming, an infusion pump is provided at the bottom of the double-spiral stirred tank 1, and the mixed slurry is injected into the disc by the infusion pump Type storage tank 6, the disc type storage tank 6 is made of 310S stainless steel, with an inner diameter of 1000mm and a height of 200mm. The diameter of the raised through hole 63 is 200mm and the height is 200mm; the slurry to be mixed is injected into the disk When the height of the storage tank 6 is 180mm, the cross steel shaft 5 is rotated by the controller to seal the ...

Embodiment 3

[0050] The present embodiment provides a production process of a graphene heat sink with controllable thickness, and the difference from Embodiment 2 is:

[0051] In step (S1), a graphene slurry with a monolayer ratio of 99% and a solid content of 10wt.%, a phenolic resin and sodium dodecyl sulfate are prepared to obtain a mixed slurry;

[0052] In step (S2), the volume of double-spiral stirred tank 1 is 60L, and the weight of gland 2 is 600kg;

[0053] In step (S3), at a rate of 10°C / min, the temperature of the heating device is increased from 7 to 1200°C, and the mixed slurry is sintered at this temperature for 60 minutes, and is naturally cooled to room temperature after completion.

[0054] The other operations were the same as those in Example 2.

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Abstract

The invention relates to a production equipment of a graphene heat sink and a production process of a graphene heat sink with a controllable thickness. The equipment includes a stirring kettle, a gland, a slitting die, a hook for a disc storage bucket, a cross steel shaft, a disc storage bucket, a heating device and a workbench; the stirring kettle, the gland, the The cutter die and the hook of the disc type storage bucket are respectively installed in the four directions of the cross steel shaft; the disc type storage bucket includes a bucket wall and a base, and the bucket wall and the base are detachably connected, so A raised through hole is arranged in the center of the base, and the height of the raised through hole is consistent with the height of the barrel wall; the disc-type material storage barrel is placed inside the heating device. The production process solves the problem that when producing graphene heat sinks with a thickness of more than 100 μm, it is necessary to use coating equipment for single-layer coating multiple times, resulting in high energy consumption, time-consuming, low production capacity, and repeated procedures that cause the film surface of the heat dissipation film. There are pinhole-shaped bubble-type defects and unevenness problems.

Description

technical field [0001] The invention belongs to the field of heat-dissipating material manufacturing, and in particular relates to a production equipment of a graphene heat sink and a production process of a graphene heat sink with a controllable thickness. Background technique [0002] With the rapid development of microelectronics integration and assembly technology and the integrated use of high-power-density devices, 5G communication is prevalent. In addition to mobile phones, new-generation industry trends such as cloud and data center construction, autonomous driving, and electric vehicles are becoming more and more popular. With the increase of power, the speed of heat energy generation is fast, and the calorific value and dissipation power density become larger and larger, which seriously affects the stability and service life of electronic components. be extremely important. [0003] The traditional thermal conductive materials are mainly metal thin films, graphite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L63/00C08L61/06C08K3/04
CPCC08J5/18C08J2363/00C08J2361/06C08K3/042
Inventor 林怡君朱海宽朱夕昀
Owner 信骅(上海)器材有限公司
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