Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-thermal-conductivity graphite-copper composite board
The invention discloses a preparation method of a high-thermal-conductivity graphite-copper composite board, and belongs to the technical field of heat sink composite boards. The preparation method comprises the following specific steps: step 1, polishing high-thermal-conductivity graphite, and ultrasonically cleaning the high-thermal-conductivity graphite with acetone; step 2, wrapping the high-thermal-conductivity graphite with a mixture of chromium salt and NaCl/KCl salt, and placing the wrapped graphite in an alumina crucible; heating the crucible to enable the mixture of the chromium salt and the NaCl/KCl salt to be in a molten state, stirring and carrying out heat treatment; step 3, taking out the high-thermal-conductivity graphite from the molten salt solution, and carrying out ultrasonic cleaning on the high-thermal-conductivity graphite by using deionized water; step 4, placing high-heat-conductivity graphite on the aluminum oxide carrier in the stainless steel chamber, meanwhile, placing high-purity copper on the high-heat-conductivity graphite plate, and then heating to enable the copper to be molten; and 5, cooling to room temperature to obtain the high-thermal-conductivity graphite-copper composite board. The production process is simple, and the bonding strength of graphite and copper is high.
本发明公开了一种高导热石墨‑铜复合板的制备方法，属于热沉复合板技术领域。其具体步骤如下：步骤1，对高导热石墨抛光，再用丙酮对其超声清洗；步骤2，通过铬盐和NaCl/KCl盐的混合物对高导热石墨包裹并放置到氧化铝坩埚中；加热坩埚，使铬盐和NaCl/KCl盐的混合物处于熔融状态，搅拌并热处理；步骤3，将高导热石墨从熔融盐溶液取出，并用去离子水对其进行超声清洗；步骤4，将高导热石墨放置在不锈钢室内的氧化铝载体上，同时将高纯度铜放在高导热石墨板上，然后加热使铜熔化；步骤5，冷却至室温，得到高导热石墨‑铜复合板。本发明生产工艺简单，石墨和铜的结合强度高。
Preparation method of high-thermal-conductivity graphite-copper composite board
The invention discloses a preparation method of a high-thermal-conductivity graphite-copper composite board, and belongs to the technical field of heat sink composite boards. The preparation method comprises the following specific steps: step 1, polishing high-thermal-conductivity graphite, and ultrasonically cleaning the high-thermal-conductivity graphite with acetone; step 2, wrapping the high-thermal-conductivity graphite with a mixture of chromium salt and NaCl/KCl salt, and placing the wrapped graphite in an alumina crucible; heating the crucible to enable the mixture of the chromium salt and the NaCl/KCl salt to be in a molten state, stirring and carrying out heat treatment; step 3, taking out the high-thermal-conductivity graphite from the molten salt solution, and carrying out ultrasonic cleaning on the high-thermal-conductivity graphite by using deionized water; step 4, placing high-heat-conductivity graphite on the aluminum oxide carrier in the stainless steel chamber, meanwhile, placing high-purity copper on the high-heat-conductivity graphite plate, and then heating to enable the copper to be molten; and 5, cooling to room temperature to obtain the high-thermal-conductivity graphite-copper composite board. The production process is simple, and the bonding strength of graphite and copper is high.
本发明公开了一种高导热石墨‑铜复合板的制备方法，属于热沉复合板技术领域。其具体步骤如下：步骤1，对高导热石墨抛光，再用丙酮对其超声清洗；步骤2，通过铬盐和NaCl/KCl盐的混合物对高导热石墨包裹并放置到氧化铝坩埚中；加热坩埚，使铬盐和NaCl/KCl盐的混合物处于熔融状态，搅拌并热处理；步骤3，将高导热石墨从熔融盐溶液取出，并用去离子水对其进行超声清洗；步骤4，将高导热石墨放置在不锈钢室内的氧化铝载体上，同时将高纯度铜放在高导热石墨板上，然后加热使铜熔化；步骤5，冷却至室温，得到高导热石墨‑铜复合板。本发明生产工艺简单，石墨和铜的结合强度高。
Preparation method of high-thermal-conductivity graphite-copper composite board
一种高导热石墨-铜复合板的制备方法
BIAN YANFEI (Autor:in) / WU SHENGXUAN (Autor:in) / LI SHI (Autor:in) / XIE MINGJUN (Autor:in) / TONG LICHAO (Autor:in) / CAI MENG (Autor:in) / WANG RUOFU (Autor:in)
31.12.2021
Patent
Elektronische Ressource
Chinesisch
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