ZL104合金Sr变质效果的热分析研究
Thermal Analysis of Sr Modification Effect of ZL104 Alloy

本文使用了一种自主研发的适用于在线检测的热分析技术来研究ZL104铝硅合金的Sr变质效果，通过金相显微镜观察合金试样的共晶组织与用热分析技术所获得的数据进行比较。通过试验分析，变质保温时间延长，ΔT_ER也逐渐增大，变质效果也越来越好，变质程度和热分析参数ΔT_ER之间有着良好的对应关系。因此，使用热分析技术可以更方便，更有效地判断铝硅合金的变质效果等级，而无须通过观察金相组织来完成，在生产实践中大大节省了时间。
In this paper, a self-developed thermal analysis technology suitable for online detection is used to study the Sr modification effect of ZL104 aluminum-silicon alloy. The eutectic structure of the alloy sample is observed through a metallographic microscope and compared with the data obtained by thermal analysis technology. Through the test analysis, with the extension of the modification and holding time, the ΔT_ER is gradually increasing, and the modification effect is getting better and better. There is a good corresponding relationship between the degree of modification and the thermal analysis parameter ΔT_ER. Therefore, the use of thermal analysis technology can be more convenient and effective to judge the modification effect level of aluminum-silicon alloy, without the need to observe the metallographic structure and other complicated and time-consuming processes to judge, which greatly saves time in production practice.