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参照美国某铝业公司热轧工艺规程，在Ｇｌｅｅｂｌｅ１５００热模拟机上，对３００３铝合金多道次热轧过程进行了实验模拟，通过对变形后试样的金相组织与ＴＥＭ观察及显微硬度测量，发现亚晶的形成与再结晶不仅取决于轧制温度，而且还与铸锭均匀化处理工艺、变形不均匀带、累积变形量及道次间停留时间有关．均匀化Ａ处理（单级均匀化：５００℃）与Ｂ处理（两级均匀化：６００→５００℃）相比，前者由于产生细小弥散的第二相粒子，致使亚晶的形成与再结晶在整个热轧过程中都相应地减弱．
According to the hot rolling process of an aluminum company in the United States, the multi-pass hot rolling process of 3003 aluminum alloy was simulated on the Gleeble1500 thermal simulator. The microstructure, TEM observation and microstructure Hardness measurement found that subgrain formation and recrystallization not only depend on the rolling temperature, but also with the ingot homogenization process, uneven deformation zone, the cumulative amount of deformation and residence time between passes. Homogenization A treatment (single-stage homogenization: 500 ° C) Compared with the B treatment (two-stage homogenization: 600 → 500 ° C), the former causes subgrain formation and recrystallization due to the generation of finely dispersed second phase particles The entire hot rolling process are correspondingly weakened.