液穴对功率超声半连续铸造铝锭性能的影响

苏思超; 李晓谦; 李瑞卿; 王也

doi:10.15980/j.tzzz.2016.07.020

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液穴对功率超声半连续铸造铝锭性能的影响
Influence of Sump on Properties of Power Ultrasonic Semi-continuous Casting Aluminum Ingot
2016年36卷第7期页码：737-739
纸质出版日期： 2016 ，
DOI： 10.15980/j.tzzz.2016.07.020

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[1]苏思超,李晓谦,李瑞卿,王也.液穴对功率超声半连续铸造铝锭性能的影响[J].特种铸造及有色合金,2016,36(07):737-739.

Su Sichao, Li Xiaoqian, Li Ruiqing, et al. Influence of Sump on Properties of Power Ultrasonic Semi-continuous Casting Aluminum Ingot[J]. Special Casting & Nonferrous Alloys, 2016,36(7):737-739.
[1]苏思超,李晓谦,李瑞卿,王也.液穴对功率超声半连续铸造铝锭性能的影响[J].特种铸造及有色合金,2016,36(07):737-739. DOI： 10.15980/j.tzzz.2016.07.020.

Su Sichao, Li Xiaoqian, Li Ruiqing, et al. Influence of Sump on Properties of Power Ultrasonic Semi-continuous Casting Aluminum Ingot[J]. Special Casting & Nonferrous Alloys, 2016,36(7):737-739. DOI： 10.15980/j.tzzz.2016.07.020.

摘要

在铝合金半连续铸造过程中

由于冷却速率不同、温度分布不均

易导致液穴的产生。通过对液穴深度的测量

并截取铝合金铸锭某一位置1/4截面进行金相组织观察

分析了液穴对功率超声铝合金铸锭性能的影响。结果发现

液穴深度越深

功率超声作用越容易被削弱

液穴对功率超声作用后的铝液有静置保温作用。小坩埚试验证明静置保温时间越长

功率超声作用效果越容易削弱

且液穴深度对铸锭中心的金相组织影响最明显。

Abstract

The sump is easily generated in aluminum alloy during semi-continuous casting process due to varied cooling rate and un-even temperature distribution.By measuring depth of the sump and analyzing microstructure of aluminum ingots cut from 1/4 section a macro position

effects of sump on the performance of aluminum ingot were analyzed.The results reveal that power ultrasound effect is restricted with the sump depth increase.In addition

sump exhibits holding role for ultrasonic power treated liquid aluminum.A small crucible experiment reveals that with increasing in holding time

ultrasonic power effects can be weakened gradually

and sump depth has the obvious role in microstructure at center of the aluminum ingot.