1060工业纯铝杆件夹杂物分析  

Inclusions Analysis of 1060 Industrial Pure Aluminum Rods

作　　者：裘尧衡 陈朝轶[1] 李军旗[1] 李正龙 王林珠 兰苑培 赵飞[1] QIU Yao-heng;CHEN Chao-yi;LI Jun-qi;LI Zheng-long;WANG Lin-zhu;LAN Yuan-pei;ZHAO Fei(College of Materials and Metallurgy,University,Guiyang 550025,Guizhou,China;Zunyi Hengjia Aluminum Co.,Ltd.,Zunyi 563100,Guizhou,China)

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]遵义恒佳铝业有限公司,贵州遵义563100

出　　处：《铸造》2023年第7期863-869,共7页Foundry

基　　金：贵州省科技计划项目(黔科合成果[2021]一般086),遵义市播州区科技项目(遵播科合科特[2020]3号)。

摘　　要：从铝熔体洁净程度方面,对某厂1060工业纯铝杆件进行了夹杂物检测分析。以机械抛光和电解抛光制备试样,采用SEM/EDS观测样品中Al_(2)O_(3)、含铁金属间化合物、氯盐、氟化物等多种类型夹杂物。统计分析了合格铝杆和不合格铝杆夹杂物分布、总数量和平均直径。数量最多的夹杂物为Al_(2)O_(3)夹杂物,主要尺寸在0~20μm范围内。不合格杆中夹杂物总数量接近合格杆夹杂物数量两倍,大量夹杂物易在连续分流挤压模具壁上积累,造成加工铝管表面擦伤,是不合格管件加工失效的主要原因。In this paper,the inclusion detection and analysis of 1060 industrial pure aluminum rods in a factory were carried out in terms of the purity of aluminum melt.The samples were made by mechanical polishing and electrolytic polishing,and various types of inclusions such as Al_(2)O_(3),iron-containing intermetallic compounds,chlorine salts and fluorides were observed by SEM/EDS.The inclusion distribution,total quantity and average diameter of inclusion in qualified and unqualified aluminum rods were statistically analyzed.The most abundant inclusions were Al_(2)O_(3) inclusions,which were in the range of 0-20μm.The total number of inclusions in the unqualified rod was nearly twice that of the qualified rod.A large number of inclusions easily accumulate on the wall of the continuous shunt extrusion mold,resulting in surface abrasion of the processed aluminum tubes,which was the main reason for the failure of the unqualified pipe fitting.

关 键 词：工业纯铝 铝杆 制冷铝管 夹杂物 分流挤压 

分 类 号：TG115[金属学及工艺—物理冶金]