铝合金Na-Mg变质规律研究  

Research of Na-Mg Modification Rules on Al-Si Alloys

作　　者：倪为国 李贵成[1] 费贻忠 

机构地区：[1]天津大学,天津活塞厂

出　　处：《特种铸造及有色合金》1995年第6期13-16,共4页Special Casting & Nonferrous Alloys

摘　　要：热分析法可以记录试样在冷却过程中的时间-温度曲线。在本文中，根据热分析曲线和大量的试验数据，得到了铝合金Ｎａ-Ｍｇ变质的综合规律，同时也给出了σｂ与△Ｔ之间的数学计算公式。最后把公式计算数据和实验结果做了对比。实践表明：利用本文结论来指导现场生产是一种行之有效的方法。It is known that thermal analysis method can record the time-temperature curves of aspecimen during solidification. In this paper,according to the thermal analysis curves and manyexperiments data,a compound rule of Na-Mg modification for Al-St Alloy has been obtained, simultaneously mathematical calculating formulas between △T and σb is put forward. Finally calculated numbers had been compared with the experimental results.the facts have proved that thismethod is very useful to production.

关 键 词：铝合金 Na-Mg变质 热分析法 变质 

分 类 号：TG146.21[一般工业技术—材料科学与工程]