| 球化处理后w(C)量降低原因分析 |
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| 引用本文： | 沈保罗,李莉,岳昌林.球化处理后w(C)量降低原因分析[J].现代铸铁,2012,32(2):35-38. |
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| 作者姓名： | 沈保罗 李莉 岳昌林 |
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| 作者单位： | 成都金顶凸轮轴铸造有限公司,四川郫县,611732 |
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| 摘 要： | 采用冲入法在500 kg的堤坝包中进行球化处理,用RESiFeMg合金作球化剂,球化反应时间>40 s;用SiBa合金作孕育剂,在180 kg的浇包内进行孕育处理;用直读光谱仪分析球化处理前后铁液的激冷试样。发现:(1)球化处理后w(C)量比原铁液的w(C)量低;(2)石墨漂浮是导致球化处理后w(C)量降低的主要原因。
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| 关 键 词： | 球化处理 w(C)量 光谱分析 |
Analysis of Reason Causing Carbon Content Decrease after Nodularizing Treatment |
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| SHEN Bao-luo
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LI Li
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YUE Chang-lin.Analysis of Reason Causing Carbon Content Decrease after Nodularizing Treatment[J].Modern Cast Iron,2012,32(2):35-38. |
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| Authors: | SHEN Bao-luo LI Li YUE Chang-lin |
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| Affiliation: | (Chengdu Jinding Camshaft Casting Co.Ltd.,Pixian 611732,China) |
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| Abstract: | The nodularizing treatment was conducted by adopting pour-over process in a ladle with dam-formed pit and by using RESiFeMg alloy as nodularizing alloy.The alloy reaction duration was more than 40 s.The inoculation was conducted in a 180 kg pouring ladle with SiBa alloy as the inoculant.The carbon contents before and after nodualrizing treatment was analyzed with spectro-analyzer by using chilled-specimens cast in the cast iron mould.Investigation revealed：（1） the carbon content after nodularizing was lower than that before nodularizing;（2） graphite floatation was the main reason causing carbon content decrease. |
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| Keywords: | nodularizing carbon content spectroanalysis |
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