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热喷涂技术:2021,13(1):79-84
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高致密度低氧含量 3D 打印用球形钼粉的制备研究
(1.矿冶科技集团有限公司;2.矿冶科技集团有限公司 特种涂层材料与技术北京市重点实验室 北京市工业部件表面强化与修复工程技术研究中心)
Preparation of Spherical Molybdenum Powder withHigh Density and Low Oxygen for 3D Printing
(1.BGRIMM Technology Group;2.BGRIMM Technology Group, Beijing Key Laboratory of Special Coating Material and Technology, Beijing Engineering Technology Research Center of Surface Strengthening and Repairing of Industry Parts)
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中文摘要: 本文通过“等离子球化 + 氢还原” 的方法制备了高致密度低氧含量的 3D 打印用球形钼粉, 分析了球形钼 粉的特性。 通过优化等离子过程中的功率、 送粉量和气体流量参数, 制备了高致密度球形钼粉; 并且采用氢气还 原球形钼粉, 降低其氧含量。 试验结果表明: 与原始粉末相比, 制备的 3D 打印用球形钼粉的松比从 2.3 g/cm3 提 高到 6.01 g/cm3; 流动性从 35 s/50 g 提高到 10.5 s/50 g; 氧含量降低到 270 ppm。
Abstract:In this study, the spherical molybdenum powder with high density and low oxygen content for 3D printing was prepared by plasma spheroidization and hydrogen reduction, and the material properties of spherical molybdenum powder were tested and analyzed. The spherical molybdenum powder for 3D printing with high density was prepared by adjusting the power, powder feeding amount and gas flow rate in the plasma process. Meanwhile, the hydrogen reduction has been adopted to reduce the oxygen content of the spherical molybdenum powder. Compared to the original powder, and the apparent density of the molybdenum powder increased from 2.3 g/cm3 to 6.01 g/cm3, the flowability increased from 35s/50 g to 10.5 s/50 g and the oxygen content reached 270 ppm.
文章编号:     中图分类号:TG174.4    文献标志码:
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引用文本:
周小彬,原慷,王芦燕.高致密度低氧含量 3D 打印用球形钼粉的制备研究[J].热喷涂技术,2021,13(1):79-84.
Zhou Xiaobin,Yuan Kang,Wang Luyan.Preparation of Spherical Molybdenum Powder withHigh Density and Low Oxygen for 3D Printing[J].Thermal Spray Technology,2021,13(1):79-84.

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