| Al－Si合金变质效果热分析技术的研究 |
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| 引用本文： | 熊艳才,黄志光,吴广忠,谢华,王文清.Al－Si合金变质效果热分析技术的研究[J].特种铸造及有色合金,1996(2). |
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| 作者姓名： | 熊艳才 黄志光 吴广忠 谢华 王文清 |
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| 作者单位： | 华中理工大学 |
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| 摘 要： | 通过热分析样杯的材料、尺寸等系统的试验，确定了一种适合炉前检测铝硅合金变质效果的样杯。结合智能化高精度的测试仪表，研制出炉前铝硅合金变质效果判别的热分析装置。并且以牛顿传热平衡方程、合金凝固过程中的平方根定律为理论基础，结合Ａｌ－Ｓｉ合金平衡状态图，推导出铝硅合金变质效果的判据──平均固相生长加速度Ｅ。Ｅ的值越小，铝硅合金的变质效果越好。
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| 关 键 词： | 铝硅合金，变质，热分析 |
Thermal Analysis of the Modification of Al-Si Alloy |
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| Xiong Yancai,Huang Zhiguang, Wu Guangzhong, Xie Hua, Wang Wenqing.Thermal Analysis of the Modification of Al-Si Alloy[J].Special Casting & Nonferrous Alloys,1996(2). |
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| Authors: | Xiong Yancai Huang Zhiguang Wu Guangzhong Xie Hua Wang Wenqing |
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| Abstract: | Based on the experiments on the thermal analysis cup and the intellectualized instrument,a new thermal analysis technique has been studied out, which can test the modification efficency of Al-Si alloy on the shop floor.Further more,the mean solid growing acceleration E during euntectic nucleation and growth is carried out based on Newton heat transfer equilibrium equation, square root law and equilibrium diagram of Al-Si alloy. It can be used to assess the modification degree of Al-Si alloy. With the value of E small, the modification would be better. |
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| Keywords: | Al-Si alloy Modification Thermal analysis |
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