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Preparation method of high-thermal-conductivity graphite-copper solid vapor chamber
The invention discloses a preparation method of a high-thermal-conductivity graphite-copper solid vapor chamber, and belongs to the technical field of heat sink composite plates. The preparation method comprises the following specific steps: 1, cleaning high-thermal-conductivity graphite with a NaOH solution, and then performing ultrasonic cleaning with deionized water; and meanwhile, uniformly mixing the three kinds of metal powder including Cr, Sn and Cu; 2, spraying the mixed metal powder obtained in the step 1 to the high-thermal-conductivity graphite; 3, carrying out heat treatment on the graphite workpiece obtained in the step 2 in a vacuum furnace; 4, taking out a graphite workpiece, cooling to the room temperature, and then cleaning a red copper piece and the cooled graphite workpiece; and 5 welding the graphite workpiece cleaned in the step 4 with the red copper piece by adopting soldering paste, and finally obtaining the high-thermal-conductivity graphite-copper solid vacuum chamber. The production process is simple, and reliable combination of graphite and copper is achieved.
本发明公开了一种高导热石墨‑铜固态均温板的制备方法，属于热沉复合板技术领域。其具体步骤如下：步骤1，用NaOH溶液清洗高导热石墨，再用去离子水超声清洗；与此同时，将Cr﹑Sn﹑Cu三种金属粉末混合均匀；步骤2，将步骤1得到的混合金属粉末喷涂到高导热石墨上；步骤3，将步骤2得到的石墨工件在真空炉中进行热处理；步骤4，取出石墨工件并待其冷却至室温，之后将紫铜件和冷却后的石墨工件进行清洗；步骤5，采用焊膏将步骤4清洗后的石墨工件与紫铜件进行焊接，最终得到高导热石墨‑铜固态均温板。本发明生产工艺简单，实现了石墨和铜的可靠结合。
Preparation method of high-thermal-conductivity graphite-copper solid vapor chamber
The invention discloses a preparation method of a high-thermal-conductivity graphite-copper solid vapor chamber, and belongs to the technical field of heat sink composite plates. The preparation method comprises the following specific steps: 1, cleaning high-thermal-conductivity graphite with a NaOH solution, and then performing ultrasonic cleaning with deionized water; and meanwhile, uniformly mixing the three kinds of metal powder including Cr, Sn and Cu; 2, spraying the mixed metal powder obtained in the step 1 to the high-thermal-conductivity graphite; 3, carrying out heat treatment on the graphite workpiece obtained in the step 2 in a vacuum furnace; 4, taking out a graphite workpiece, cooling to the room temperature, and then cleaning a red copper piece and the cooled graphite workpiece; and 5 welding the graphite workpiece cleaned in the step 4 with the red copper piece by adopting soldering paste, and finally obtaining the high-thermal-conductivity graphite-copper solid vacuum chamber. The production process is simple, and reliable combination of graphite and copper is achieved.
本发明公开了一种高导热石墨‑铜固态均温板的制备方法，属于热沉复合板技术领域。其具体步骤如下：步骤1，用NaOH溶液清洗高导热石墨，再用去离子水超声清洗；与此同时，将Cr﹑Sn﹑Cu三种金属粉末混合均匀；步骤2，将步骤1得到的混合金属粉末喷涂到高导热石墨上；步骤3，将步骤2得到的石墨工件在真空炉中进行热处理；步骤4，取出石墨工件并待其冷却至室温，之后将紫铜件和冷却后的石墨工件进行清洗；步骤5，采用焊膏将步骤4清洗后的石墨工件与紫铜件进行焊接，最终得到高导热石墨‑铜固态均温板。本发明生产工艺简单，实现了石墨和铜的可靠结合。
Preparation method of high-thermal-conductivity graphite-copper solid vapor chamber
一种高导热石墨-铜固态均温板的制备方法
BIAN YANFEI (author) / LI SHI (author) / WU SHENGXUAN (author) / XIE MINGJUN (author) / TONG LICHAO (author) / CAI MENG (author) / WANG RUOFU (author)
2021-12-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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