摘要
采用上方侧注式双辊铸轧工艺制备了1050铝铸轧薄带,并观察了薄带金相组织。结果表明,1050铸轧薄带表面质量良好;薄带厚度随带坯长度的增加而先增加后趋于稳定。金相组织观察表明,上方侧注式双辊铸轧薄带上辊侧与下辊侧组织存在明显差异。上辊侧为等轴生长的凝固组织,下辊侧为轧制变形组织,且中间存在一条分界线,是由于轧制作用改善冷却条件所产生的。
Thin strip of industrial pure 1050 aluminum alloy was produced by top side-pouring twin-roll casting process,and its microstructure was observed.The results show that the as-cast 1050 strip exhibits satisfy in surface appearance with little defect.The thickness of the strip is increased with the increasing length and then to be stable.The microstructure observation reveals that apparent difference in the microstructure can be observed between the upper roll and lower roll sides.On the upper roll side,the microstructure belongs to solidification structure with equiaxed growth,while on the lower roll side,the microstructure is the rolling deformation structure.In addition,there exists a boundary line at the middle,which is attributed to the improvement of heat transfer condition caused by rolling force.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2016年第2期222-224,共3页
Special Casting & Nonferrous Alloys
基金
江西省科学院科研开发专项资金资助项目(2014-YYB-16
2014-XTPH1-16)
关键词
双辊铸轧
微观组织
传热行为
1050铝薄带
Twin-roll Casting
Microstructure
Heat Transfer Behavior
1050Aluminum Alloy
