| 浅析共沉淀法制备Fe-Co预合金粉末中氧含量的控制 |
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| 引用本文： | 申思,宋月清,汪礼敏,张景怀.浅析共沉淀法制备Fe-Co预合金粉末中氧含量的控制[J].粉末冶金工业,2009,19(6). |
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| 作者姓名： | 申思 宋月清 汪礼敏 张景怀 |
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| 作者单位： | 1. 北京有色金属研究总院,北京,100088;有研粉末新材料(北京)有限公司,北京,101407
2. 北京有色金属研究总院,北京,100088 |
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| 摘 要： | 采用共沉淀法,以草酸为沉淀剂制备了金刚石工具用Fe-Co预合金粉末,采用脉冲-红外法测定粉末的氧含量.研究了在相同的还原温度和时间下,原料杂质、残留阴离子、热分解工序等因素对氧含量的影响.结果表明:通过减少原料中Ti、Mn等杂质含量、充分洗涤沉淀物以去除SO42-离子和热分解工序等均可以有效地降低粉末的氧含量.
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| 关 键 词： | 预合金粉末 氧含量 杂质 热分解 |
STUDY ON CONTROL OF OXYGEN CONTENT IN PRE-ALLOYED Fe-Co POWDER PREPARED BY CO-PRECIPITATION METHOD |
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| SHEN Si,SONG Yue-qing,WANG Li-min,ZHANG Jing-huai.STUDY ON CONTROL OF OXYGEN CONTENT IN PRE-ALLOYED Fe-Co POWDER PREPARED BY CO-PRECIPITATION METHOD[J].Powder Metallurgy Industry,2009,19(6). |
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| Authors: | SHEN Si SONG Yue-qing WANG Li-min ZHANG Jing-huai |
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| Affiliation: | SHEN Si1,2,SONG Yue-qing1,WANG Li-min1,ZHANG Jing-huai1,2(1.General Research Institute for Nonferrous Metals,Bijing 100088,China,2.Gripm Advanced Materials Co.,LTD,Beijng 101407,China) |
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| Abstract: | Pre-alloyed iron-cobalt powder used for diamond tools were prepared by co-precipitation method with oxalic acid as precipitator,and oxygen content was determined by the impulse heating-infrared absorption method.The effect of impurities of raw materials,residual anion,thermal decomposition process on oxygen content was studied.The results show,that the decrease of impurities in raw materials,such as Ti and Mn,full removal of sulphate,and effective thermal decomposition process could reduce oxygen content of... |
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| Keywords: | pre-alloyed powder oxygen content impurity thermal decomposition |
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