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DOI:
热喷涂技术:2020,12(2):41-46
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石墨表面改性工艺对镍包石墨粉末性能影响研究
冀国娟1,2,3, 李振铎1,2,3, 程旭莹1,2,3
(1.矿冶科技集团有限公司;2.特种涂层材料与技术北京市重点实验室;3.北京市工业部件表面强化与修复工程技术研究中心)
The Study of the Graphite Surface Modifcation Effecton the Properties of Nickel-coated Graphite Powder
GuojuanJi1,2,3, Zhenduo Li1,2,3, Xuying Cheng1,2,3
(1.BGRIMM Technology Group;2.Beijing Key Laboratory of Special Coating Materials and Technology;3.Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts)
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中文摘要: 本文采用热处理工艺和表面活性剂对石墨表面进行改性处理, 采用氢还原包覆工艺制备镍包石墨粉末, 对 比了不同石墨热处理工艺和表面活性剂的添加对镍包石墨粉末表面形貌和物理性能的影响。 研究表明 , 在热处理 温度 500℃, 采用醇类活性剂表面处理石墨后, 通过加压氢还原工艺制备的镍包石墨粉末具有较好的表面包覆完 整性和优异的粉末松装密度和流动性。
中文关键词: 镍包石墨  表面改性  热处理
Abstract:The graphite surface was modified by heat treatment process and surfactant, and nickel-coated graphite powder was prepared by hydrogen reduction coating process. The effects of different graphite heat treatment processes and surfactant addition on the surface morphology and physical properties of nickel-coated graphite powder were compared. The results showed that when the graphite was treated with alcohol-based surfactants at the heat treatment temperature of 500℃ , the nickel-coated graphite powder prepared by the process of pressurized hydrogen reduction exhibited good surface coating integrity and excellent powder packing density and fluidity.
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冀国娟,李振铎,程旭莹.石墨表面改性工艺对镍包石墨粉末性能影响研究[J].热喷涂技术,2020,12(2):41-46.
GuojuanJi,Zhenduo Li,Xuying Cheng.The Study of the Graphite Surface Modifcation Effecton the Properties of Nickel-coated Graphite Powder[J].Thermal Spray Technology,2020,12(2):41-46.

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