碳化工艺对中细WC粉性能的影响
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摘要
中细WC粉末在高档可转位刀片、球齿、耐磨零件中广泛应用。随着粉末制备进一步产业升级,对中细WC粉末的质量提出了更高的要求。研究以1.8~2.0μm的钨粉为原料,采用3种不同的碳化设备,在不同工艺条件下,制备出3种中细碳化钨粉末。通过采用粒度分布、扫描电镜图、合金金相组织图进行比较分析,确定适合耐磨零件的中细WC粉末的最优碳化工艺:使用碳化设备B,十四管炉制备FSSS粒度1.8~2.0μm的钨粉,碳化温度为1 400~1 500℃。
The middle and fine grain WC powder is widely used in advanced movable blades, sophisticated spherical shape bits and wear-resistant parts. The industrial upgrading requires a higher quality of middle and fine grain WC powder. By using different carbonization processes, three middle and fine grain WC powders were prepared out of tungsten powder with particle size of 1.8 ~2.0 μm. The analysis of the size distribution, scanning electron microscope and metallographic structure led to the optimal carbonization process, using the carbonization equipment B, the Fsss grain size 1.8 ~2.0 μm tungsten powder is prepared by fourteen tube furnace, and the carbonization temperature is 1 400~1 500.
The middle and fine grain WC powder is widely used in advanced movable blades, sophisticated spherical shape bits and wear-resistant parts. The industrial upgrading requires a higher quality of middle and fine grain WC powder. By using different carbonization processes, three middle and fine grain WC powders were prepared out of tungsten powder with particle size of 1.8 ~2.0 μm. The analysis of the size distribution, scanning electron microscope and metallographic structure led to the optimal carbonization process, using the carbonization equipment B, the Fsss grain size 1.8 ~2.0 μm tungsten powder is prepared by fourteen tube furnace, and the carbonization temperature is 1 400~1 500.
引文
[1]钟毓斌,孙娟,郝立伟,等.碳化温度对3.0μm WC产品性能影响研究[C]//第十一次中国硬质合金学术会议论文集,2014:86-90.
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[9]傅小明,吴晓东.用活性氧化钨制取中细W和WC工艺研究[J].稀有金属,2003,27(6):680-683.FU Xiaoming,WU Xiaodong.Research on W and WC production from activated tungsten oxide[J].Chinese Journal of Rare Metals,2003,27(6):680-683.
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[2]郝立伟,钟毓斌,肖晗.一次碳化法工艺研究[C]//第十次全国硬质合金学术会议论文集,2010:112-117.
[3]刘原,唐建成,卓海鸥,等.超细和纳米钨粉制备技术进展[J].中国钨业,2012,27(2):41-43.LIU Yuan,TANG Jiancheng,ZHOU Haiou,et al.Progress in the preparation techniques of superfine and Nano-tungsten powders[J].China tungsten industry,2012,27(2):41-43.
[4]周建华,吴玉霜,伏坤,等.高强韧性特粗晶采掘工具用硬质合金的研究[C]//第十一次中国硬质合金学术会议论文集,2014:1-5.
[5]雷纯鹏,赵勇军,刘刚,等.3种特殊微结构WC-Co硬质合金的研究进展[J].粉末冶金工业,2014(5):48-53.LEI Chunpeng,ZHAO Yongjun,LIU Gang,et al.Research progress of WC-Co cemented carbides with three kinds of special microstructure[J].Powder Metallurgy Industry,2014(5):48-53.
[6]张卫兵,刘向中,陈振华,等.WC-Co硬质合金最新进展[J].稀有金属,2015,39(2):178-186.ZHANG Weibin,LIU Xiangzhong,CHEN Zhenghua,et al.Latest development of WC-Co cemented carbide[J].Chinese Journal of Rare Metals,2015,39(2):178-186.
[7]左洪松,栾道成,王正云,等.不同含量复式碳化物对细晶硬质合金性能的影响[J].中国钨业,2011,26(6):27-30.ZUO Hongsong,LUAN Daocheng,WANG Zhengyun,et al.The effects of double carbide with different grades on the properties of ultrafine cemented carbide[J].China Tungsten Industry,2011,26(6):27-30.
[8]张立,王元杰,余贤旺,等.WC粉末粒度与形貌对硬质合金中WC晶粒度、晶粒度形貌与合金性能的影响[J].中国钨业,2008,23(4):23-26.ZHANG Li,WANG Yuanjie,YU Xianwang,et al.Effect of particle size and morphology of tungsten Carbide powder on grain size,grain morphology and propreties of cemented carbide[J].China Tungsten Industry,2008,23(4):23-26.
[9]傅小明,吴晓东.用活性氧化钨制取中细W和WC工艺研究[J].稀有金属,2003,27(6):680-683.FU Xiaoming,WU Xiaodong.Research on W and WC production from activated tungsten oxide[J].Chinese Journal of Rare Metals,2003,27(6):680-683.
[10]彭卫珍.超细碳化钨粉粒度分析方法综述[C]//第十一次中国硬质合金学术会议论文集,2014:256-260.