| 球铁白口倾向的影响因素及其防止 |
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| 引用本文： | 程俊伟.球铁白口倾向的影响因素及其防止[J].现代铸铁,2005,25(5):58-59. |
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| 作者姓名： | 程俊伟 |
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| 作者单位： | 中国一拖集团公司,工艺材料研究所,河南,洛阳,471004 |
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| 摘 要： | 引起球铁白口倾向大的主要原因是：炉料稳定性差、电炉保温、球化处理及铁液成分控制和孕育处理出现异常.为减小球铁的白口倾向,建议：缩短高温停留时间;采用低稀土球化剂;加强炉料控制,减少微量元素,避免铋量过高.
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| 关 键 词： | 球铁 白口倾向 防止措施 白口倾向 球铁 成分控制 稀土球化剂 孕育处理 球化处理 停留时间 微量元素 稳定性 |
| 文章编号： | 1003-8345(2005)05-0058-02 |
| 收稿时间： | 2005-06-20 |
| 修稿时间： | 2005年6月20日 |
Factors Influencing Chilling Tendency of Nodular Iron and Chilling prevention Measures |
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| CHENG Jun-wei.Factors Influencing Chilling Tendency of Nodular Iron and Chilling prevention Measures[J].Modern Cast Iron,2005,25(5):58-59. |
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| Authors: | CHENG Jun-wei |
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| Abstract: | The main reasons causing increased chilling tendency of nodular iron are as follows: using metal charge containing trace and alloy elements which can increase chilling tendency;molten iron being holded at high temperature too long;abnormal nodularizing and/or inoculation treatment,as well as abnormal composition control.In order to decrease chilling tendency,it is suggested to shorten holding time of molten iron at high temperature;adopt nodularizing alloy with low rear earth content;reduce trace elements and bismuth contents of the metal charge. |
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| Keywords: | nodular Iron chill tendency prevention measures |
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