| 高致密球形钼粉制备工艺研究 |
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| 引用本文： | 陈强,冯鹏发,武洲,胡林.高致密球形钼粉制备工艺研究[J].中国钼业,2013(4):38-41. |
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| 作者姓名： | 陈强 冯鹏发 武洲 胡林 |
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| 作者单位： | 金堆城钼业股份有限公司技术中心 |
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| 摘 要： | 采用感应等离子设备制备出球形钼粉，研究了工艺参数对制备高致密度球形钼粉的影响。用霍耳流速仪检测球形钼粉的流速，斯科特容量计检测球形钼粉的松装密度，用电子扫描显微镜（SEM）观测球化钼粉的微观形貌。研究表明，等离子体处理可以使钼粉形状由不规则变为球形，钼粉流动性显著提高，松装密度增大，实现了钼粉的致密化，同时纯度提高。且当输入功率为25kW·h、送粉量50g／min钼粉的球化最为理想，流速达16s／50g，松装密度为4．8g/cm3。
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| 关 键 词： | 等离子体 球化 钼粉 纯化 |
STUDY ON PREPAREATION TECHNOLOGY OF HIGH- DENSITY SPHERICAL MOLYBDENUM POWDER |
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| CHEN Qiang;FENG Peng-fa;WU Zhou;HU Lin.STUDY ON PREPAREATION TECHNOLOGY OF HIGH- DENSITY SPHERICAL MOLYBDENUM POWDER[J].China Molybdenum Industry,2013(4):38-41. |
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| Authors: | CHEN Qiang;FENG Peng-fa;WU Zhou;HU Lin |
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| Affiliation: | CHEN Qiang;FENG Peng-fa;WU Zhou;HU Lin;Technical Center,Jinduicheng Molybdenum Co.,Ltd.; |
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| Abstract: | Spherical molybdenum particles were obtained by the process of heating irregularly - shaped molybdenum powders by plasma equipment, and the effects of the processing parameters on the spheroidization of the product were studied. The morphology of molybdenum powder was observed by scanning electron microscopy （SEM）. The flow rate and apparent density of molybdenum powder were investigated by Hall Flow Meter and Scott Volumeter. The results show that spherical molybdenum powders could be obtained from irregular powder, the flow rate and ap- parent density of molybdenum powder are both enhanced . When power is 25 kWh, feed rate is 50 g/min, the best efficiency of the spheroidization was gained. |
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| Keywords: | thermal plasma spheroidization molybdenum powder |
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