Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-power graphite heat conduction material
The invention provides a preparation method of a high-power graphite heat-conducting material, which comprises the following steps: graphite modification: uniformly smearing liquid carbon fibers on the surface of an initial graphite cooling fin to be processed, then feeding the graphite cooling fin into a baking oven to be baked at the temperature of 280 DEG C or above for 30 minutes for curing, and then cooling to form a thickened graphite cooling fin; sintering: coiling the cooled thickened graphite cooling fin, putting the cooled thickened graphite cooling fin into a graphite sintering jig, carrying out carbonization and graphitization in sequence, and then cooling to form a semi-finished graphite cooling fin; and calendering is conducted, the cooled semi-finished graphite cooling fin is unfolded and pressed to be thin and compact through mechanical equipment till the density of the graphite cooling fin is 1.5-2 times that of the initial graphite cooling fin to be machined, and the high-power graphite heat conduction material is obtained. The high-power graphite heat conduction material has the beneficial effects that the heat of a heating electronic component can be quickly dissipated by producing the high-power graphite heat conduction material, and the normal operation of electronic equipment is guaranteed.
本发明提供一种高功率石墨导热材料的制备方法，包括：石墨改性，将液态碳纤维均匀涂抹在初始待加工石墨散热片的表面，然后送入烘烤箱280℃以上烘烤30min固化，然后降温形成增厚石墨散热片；烧结，将冷却后的增厚石墨散热片收成卷，放入石墨烧结治具中，依次进行碳化和石墨化，然后降温形成半成品石墨散热片；压延，将冷却后的半成品石墨散热片展开，采用机械设备将其压薄压实，直至其密度为初始待加工石墨散热片密度的1.5到2倍，得到高功率石墨导热材料。本发明的有益效果：通过生产一种高功率石墨导热材料，能够实现快速的将发热电子元器件的热量散发出去，保障电子设备的正常运行。
Preparation method of high-power graphite heat conduction material
The invention provides a preparation method of a high-power graphite heat-conducting material, which comprises the following steps: graphite modification: uniformly smearing liquid carbon fibers on the surface of an initial graphite cooling fin to be processed, then feeding the graphite cooling fin into a baking oven to be baked at the temperature of 280 DEG C or above for 30 minutes for curing, and then cooling to form a thickened graphite cooling fin; sintering: coiling the cooled thickened graphite cooling fin, putting the cooled thickened graphite cooling fin into a graphite sintering jig, carrying out carbonization and graphitization in sequence, and then cooling to form a semi-finished graphite cooling fin; and calendering is conducted, the cooled semi-finished graphite cooling fin is unfolded and pressed to be thin and compact through mechanical equipment till the density of the graphite cooling fin is 1.5-2 times that of the initial graphite cooling fin to be machined, and the high-power graphite heat conduction material is obtained. The high-power graphite heat conduction material has the beneficial effects that the heat of a heating electronic component can be quickly dissipated by producing the high-power graphite heat conduction material, and the normal operation of electronic equipment is guaranteed.
本发明提供一种高功率石墨导热材料的制备方法，包括：石墨改性，将液态碳纤维均匀涂抹在初始待加工石墨散热片的表面，然后送入烘烤箱280℃以上烘烤30min固化，然后降温形成增厚石墨散热片；烧结，将冷却后的增厚石墨散热片收成卷，放入石墨烧结治具中，依次进行碳化和石墨化，然后降温形成半成品石墨散热片；压延，将冷却后的半成品石墨散热片展开，采用机械设备将其压薄压实，直至其密度为初始待加工石墨散热片密度的1.5到2倍，得到高功率石墨导热材料。本发明的有益效果：通过生产一种高功率石墨导热材料，能够实现快速的将发热电子元器件的热量散发出去，保障电子设备的正常运行。
Preparation method of high-power graphite heat conduction material
一种高功率石墨导热材料的制备方法
HU WANLI (Autor:in) / MU YINGYING (Autor:in)
09.04.2024
Patent
Elektronische Ressource
Chinesisch
High-heat conduction graphite foam/carbon composite material and preparation method thereof
| Europäisches Patentamt | 2016
Preparation method of graphite film heat conduction reinforcement composite material
| Europäisches Patentamt | 2021
Ultrahigh heat conduction graphite film and preparation method thereof
| Europäisches Patentamt | 2024
High-density heat conduction composite material and preparation method thereof
| Europäisches Patentamt | 2024
Preparation method of graphite material and graphite material
| Europäisches Patentamt | 2023