8011铝合金铸轧工艺对带坯晶粒度的影响分析  

Effect of Casting and Rolling Process Parameter on Grain Size of 8011 Aluminum Alloy Strip

作　　者：屈怀超 李逢科 吴嘉诚 樊嘉伟 QU Huaichao;LI Fengke;WU Jiacheng;FAN Jiawei(Gansu Dongxing Jiayu New Material Co.Ltd.,Jiayuguan 735100,China)

机构地区：[1]甘肃东兴嘉宇新材料有限公司,甘肃嘉峪关735100

出　　处：《甘肃冶金》2024年第5期118-121,共4页Gansu Metallurgy

摘　　要：通过使用徕卡DM2700M金相显微镜观测定量分析冷却水温及铸轧速度的变化对8011铝铸轧带坯晶粒度的影响,分析探索出最佳冷却水温及铸轧速度范围。随着冷却水温的降低及轧制速度的增加,晶粒度均呈现先骤减后缓减趋势,当冷却水温控制在27~29℃,晶粒尺寸细化效果突出,平均晶粒度尺寸保持在300~320μm,同样轧制速度控制在750~800 mm/min,平均晶粒度尺寸310~320μm,晶粒细化效果理想。By using Leica DM2700M metallography microscope,the influence of cooling water temperature and casting rolling speed on the grain size of 8011 aluminum casting rolling strip was quantitatively analyzed,and the optimal cooling water temperature and casting rolling speed range were analyzed.With the decrease of cooling water temperature and the increase of rolling speed,the grain size showed a trend of sharp decrease at first and then slow down.When the cooling water temperature was controlled in the range of 27~29℃,the grain size refinement effect was prominent,the average grain size was kept in the range of 300~320μm,and the rolling speed was controlled in the range of 750~800 mm/min.The average grain size is 310~320μm,and the grain refinement effect is ideal.

关 键 词：铸轧8011铝合金 金相检测 冷却水温 铸轧速度 晶粒度尺寸 

分 类 号：TG146.21[一般工业技术—材料科学与工程]