WO2016115802A1 - 人造石墨散热膜的生产工艺 - Google Patents

人造石墨散热膜的生产工艺 Download PDF

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Publication number
WO2016115802A1
WO2016115802A1 PCT/CN2015/080650 CN2015080650W WO2016115802A1 WO 2016115802 A1 WO2016115802 A1 WO 2016115802A1 CN 2015080650 W CN2015080650 W CN 2015080650W WO 2016115802 A1 WO2016115802 A1 WO 2016115802A1
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product
graphite heat
sintering
processed
production process
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PCT/CN2015/080650
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English (en)
French (fr)
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赖优萍
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苏州格优碳素新材料有限公司
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Publication of WO2016115802A1 publication Critical patent/WO2016115802A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/20—Graphite
    • C01B32/205—Preparation

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  • the invention relates to a production process of an artificial graphite heat-dissipating film product.
  • the production of the existing artificial graphite heat-dissipating film product generally adopts the operation mode as shown in FIG. 1 : the original material is divided into packages by the package, and the original material of the package is cut into pieces, and the piece is cut into pieces.
  • the original material is monolithically isolated and superimposed with graphite paper. After stacking, it is fixed in the fixture. The fixture is placed in a high-temperature conversation and sintered at 1400 °C to carbonize the original material.
  • the carbonized product is removed, transferred to a high-temperature graphitization furnace, and the graphitization furnace is vacuumed, and then sintered at 2900 ° C to make it graphitized at a high temperature; after graphitization, the temperature is lowered and taken out, and calendered by a calender to finally produce Graphite heat sink products.
  • the object of the present invention is to provide a production process of an artificial graphite heat-dissipating film which has a high productivity, a low loss and a low cost of use, and a low labor cost.
  • a production process of an artificial graphite heat dissipating film which comprises
  • step (2) a plurality of brackets are sequentially arranged in the sintering furnace, and the workpieces to be processed are sequentially bent in a curved shape on the bracket.
  • step (2) when the carbonization is performed, the temperature in the sintering furnace to be held is raised to 1300 ° C for 8 hours to complete the carbonization; when the carbonization is completed, the temperature is lowered to 1000 ° C.
  • the furnace was evacuated and heated to 2900 ° C for sintering and held for 24 hours to complete the graphitization.
  • the present invention has the following advantages compared with the prior art: 1.
  • the arrangement of the products to be processed used in the furnace in the present invention can increase the area of the product that can be sintered in each furnace, thereby improving the production capacity;
  • the original material is cut into the process of the sheet, and the transfer process in the sintering process is reduced, thereby reducing the manpower required and reducing the labor cost;
  • the product package delivery is convenient for the next process, and the reduction is reduced. Use cost and loss rate.
  • FIG. 1 is a flow chart showing a production process of a conventional artificial graphite heat-dissipating film.
  • FIG. 2 is a flow chart showing a production process of the artificial graphite heat-dissipating film of the present invention.
  • Figure 3 is a schematic view showing the manner in which the product to be processed is placed in the furnace in the process of the present invention.
  • Embodiment 1 As shown in FIG. 2, a production process of an artificial graphite heat-dissipating film, firstly, the original material, that is, the high-temperature resistant PI film strip is packaged, and the following steps are performed:
  • the product to be processed 1 is placed in a sintering furnace in the manner of drying the cloth. As shown in FIG. 3, a plurality of brackets 2 are arranged in parallel in the sintering furnace, and the articles to be processed 1 are sequentially bent in the bracket 2 In the above, the product 1 to be processed has a horizontal S shape on each of the stents 2.
  • carbonization and graphitization are sequentially performed in the sintering furnace: when carbonization is performed, the temperature in the furnace to be sintered is gradually increased to 1300 ° C for 8 hours to complete carbonization; when the carbonization is completed, the temperature is lowered to 1000 ° C.
  • the inside of the sintering furnace was evacuated and gradually heated to 2900 ° C for sintering and held for 24 hours to complete the graphitization.
  • the finished product to be carbonized and graphitized is cooled to form a semi-finished product.
  • the production process of the above-mentioned artificial graphite heat-dissipating film is aimed at the problems existing in the existing production technology, improving from the process and equipment, reducing manpower, increasing productivity, improving the product form, reducing the wear and tear of the next process, and improving the product. Utilization.
  • the specific performance is as follows:

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Ceramic Products (AREA)

Abstract

提供一种人造石墨散热膜的生产方法，包括：（1）贴合：将卷装原始材料和卷装石墨纸贴合形成卷装的待加工品；（2）烧结：将待加工品按晾晒布匹的方式放置到能够根据设定的温度曲线控制炉内温度的烧结炉中依次进行碳化和石墨化，然后降温形成半成品；（3）压延：将半成品压延形成人造石墨散热膜产品。该方法可以提高产能，降低成本。

Description

人造石墨散热膜的生产工艺 技术领域
本发明涉及一种人造石墨散热膜产品所使用是生产工艺。
背景技术
现有的人造石墨散热膜产品的生产通常采用如附图1所示的作业方式：将原始材料由卷装分条成卷装，再将该卷装的原始材料分切为片状，将片状的原始材料用石墨纸进行单片隔离并叠加，叠加后固定在治具中，将治具先放置在高温谈话录中进行1400℃的烧结，使其原始材料碳化；碳化完成并降温后，将碳化的产品去除，转移至高温石墨化炉中，将石墨化炉抽真空后进行2900℃的烧结，使之高温石墨化；石墨化后降温并取出，用压延机进行压延后最终成产出石墨散热片产品。
这种作业方式存在如下缺陷：
1、产能低：每炉只能烧结约20平方米产品；
2、人工成本高：每个工序都需要大量人力；
3、损耗和使用成本高：产品片状交货，使得下道生产工序在使用石墨散热膜产品是损耗10％左右，损耗率较高，造成使用成本较高。
发明内容
本发明的目的是提供一种产能较高而损耗和使用成本较低，并降低人工成本的人造石墨散热膜的生产工艺。
为达到上述目的，本发明采用的技术方案是：
一种人造石墨散热膜的生产工艺，其包括
(1)贴合：将卷装原始材料和卷装石墨纸贴合形成卷装的待加工品；
(2)烧结：将所述的待加工品按晾晒布匹的方式放置到能够根据设定的温度曲线控制炉内温度的烧结炉中依次进行碳化和石墨化，然后降温形成半成品；
(3)压延：将所述的半成品压延形成人造石墨散热膜产品。
步骤(2)中，在所述的烧结炉中依次排列设置多个支架，所述的待加工品依次呈弯曲状晾设于所述的支架上。
步骤(2)中，进行所述的碳化时，待所述的烧结炉中的温度升至1300℃时保持8小时，完成所述的碳化；所述的碳化完成后降温至1000℃时将所述的烧结炉内抽真空再升温至2900℃进行烧结并保持24小时，完成所述的石墨化。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：1、本发明采用的待加工品在炉内的设置方式能够提高每炉能够烧结的产品面积，从而提高产能；2、减少了原始材料分切为我片状的工序，并减少了烧结过程中的转移工序，从而减少了所需人力，降低了人工成本；3、产品卷装交货，便于下道工序使用，降低了使用成本和损耗率。
附图说明
附图1为现有的人造石墨散热膜的生产工艺的流程图。
附图2为本发明的人造石墨散热膜的生产工艺的流程图。
附图3为本发明的工艺中采用的待加工品在炉内的设置方式的示意图。
以上附图中：1、待加工品；2、支架。
具体实施方式
下面结合附图所示的实施例对本发明作进一步描述。
实施例一：如附图2所示，一种人造石墨散热膜的生产工艺，首先将原始材料，即耐高温PI膜分条为卷装后进行如下步骤：
(1)贴合：将卷装原始材料和卷装石墨纸贴合形成卷装的待加工品1；
(2)烧结：改进设计一种烧结炉，该烧结炉能够设置温度曲线并能够根据所设置的温度曲线自动化地控制炉内的温度。
将待加工品1按晾晒布匹的方式放置到烧结炉中，如附图3所示，在烧结炉内依次平行排列设置多个支架2，将待加工品1依次呈弯曲状晾设于支架2上，使得待加工品1在各支架2上呈水平的S形。待加工品1放置好后，在烧结炉中依次进行碳化和石墨化：进行碳化时，待烧结炉中的温度逐渐升至1300℃时保持8小时，完成碳化；碳化完成后降温至1000℃时将烧结炉内抽真空再逐渐升温至2900℃进行烧结并保持24小时，完成石墨化。完成碳化和石墨化的待加工品经降温形成半成品。
(3)压延：取出半成品，并采用压延机对半成品进行压延，最终形成卷装的人造石墨散热膜产品。
上述人造石墨散热膜的生产工艺针对现有生产技术中存在的问题，从工艺上和设备上进行改进，降低人力，提高产能，并在产品形态上进行改进，降低下道工序的耗损，提高产品的利用率。具体表现如下：
1、减少了工序，降低人工成本；
2、增加每炉的产出，由之前的每炉20平方米增加至现在每炉200平方米；
3、因最终产品是卷装产品，可以做到每卷200m以上，大大降低下 道工序(或者系统制造商)的耗损，耗损可以控制在2％左右。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (3)

  1. 一种人造石墨散热膜的生产工艺，其特征在于：其包括
    (1)贴合：将卷装原始材料和卷装石墨纸贴合形成卷装的待加工品；
    (2)烧结：将所述的待加工品按晾晒布匹的方式放置到能够根据设定的温度曲线控制炉内温度的烧结炉中依次进行碳化和石墨化，然后降温形成半成品；
    (3)压延：将所述的半成品压延形成人造石墨散热膜产品。
  2. 根据权利要求1所述的人造石墨散热膜的生产工艺，其特征在于：步骤(2)中，在所述的烧结炉中依次排列设置多个支架，所述的待加工品依次呈弯曲状晾设于所述的支架上。
  3. 根据权利要求1所述的人造石墨散热膜的生产工艺，其特征在于：步骤(2)中，进行所述的碳化时，待所述的烧结炉中的温度升至1300℃时保持8小时，完成所述的碳化；所述的碳化完成后降温至1000℃时将所述的烧结炉内抽真空再升温至2900℃进行烧结并保持24小时，完成所述的石墨化。
PCT/CN2015/080650 2015-01-23 2015-06-03 人造石墨散热膜的生产工艺 WO2016115802A1 (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116835580A (zh) * 2023-06-26 2023-10-03 江苏汉华热管理科技有限公司 一种单层石墨导热膜的制备方法
CN117303904A (zh) * 2023-07-04 2023-12-29 张润枝 一种散热膜生产工艺

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104556019B (zh) * 2015-01-23 2017-02-01 苏州格优碳素新材料有限公司 人造石墨散热膜的生产工艺
CN106079808A (zh) * 2016-06-22 2016-11-09 苏州格优碳素新材料有限公司 一种人造石墨散热膜的生产工艺
CN106115670A (zh) * 2016-06-23 2016-11-16 苏州格优碳素新材料有限公司 一种卷装人造石墨散热膜制造方法
CN107460483B (zh) * 2017-08-14 2019-07-16 苏州格优碳素新材料有限公司 一种石墨、铜复合导热材料的制备方法
CN113185324B (zh) * 2021-06-10 2022-03-08 中电化合物半导体有限公司 石墨件及其处理方法、单晶生长设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102517633A (zh) * 2011-12-26 2012-06-27 彭鹏 一种生长石墨烯的支架及方法
CN104003381A (zh) * 2014-06-13 2014-08-27 江苏悦达新材料科技有限公司 一种高导热石墨膜卷材的制备方法
CN104015468A (zh) * 2014-06-17 2014-09-03 嘉兴中易碳素科技有限公司 石墨膜的生产方法
CN104556019A (zh) * 2015-01-23 2015-04-29 苏州格优碳素新材料有限公司 人造石墨散热膜的生产工艺

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102517633A (zh) * 2011-12-26 2012-06-27 彭鹏 一种生长石墨烯的支架及方法
CN104003381A (zh) * 2014-06-13 2014-08-27 江苏悦达新材料科技有限公司 一种高导热石墨膜卷材的制备方法
CN104015468A (zh) * 2014-06-17 2014-09-03 嘉兴中易碳素科技有限公司 石墨膜的生产方法
CN104556019A (zh) * 2015-01-23 2015-04-29 苏州格优碳素新材料有限公司 人造石墨散热膜的生产工艺

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116835580A (zh) * 2023-06-26 2023-10-03 江苏汉华热管理科技有限公司 一种单层石墨导热膜的制备方法
CN116835580B (zh) * 2023-06-26 2024-02-13 江苏汉华热管理科技有限公司 一种单层石墨导热膜的制备方法
CN117303904A (zh) * 2023-07-04 2023-12-29 张润枝 一种散热膜生产工艺

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