Ultrasonic Purification of AZ31 Magnesium Melt

Li Haoyu; Le Qichi; Zhang Zhiqiang; Liu Xuan; Cui Jianzhong

doi:10.15980/j.tzzz.2015.12.030

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Ultrasonic Purification of AZ31 Magnesium Melt
Vol. 35, Issue 12, Pages: 1333-1336(2015)
Published： 2015 ，
DOI： 10.15980/j.tzzz.2015.12.030

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[1]李浩宇,乐启炽,张志强,刘轩,崔建忠.AZ31镁合金熔体超声净化处理[J].特种铸造及有色合金,2015,35(12):1333-1336.

Li Haoyu, Le Qichi, Zhang Zhiqiang, et al. Ultrasonic Purification of AZ31 Magnesium Melt. [J]. Special Casting & Nonferrous Alloys 35(12):1333-1336(2015)
[1]李浩宇,乐启炽,张志强,刘轩,崔建忠.AZ31镁合金熔体超声净化处理[J].特种铸造及有色合金,2015,35(12):1333-1336. DOI： 10.15980/j.tzzz.2015.12.030.

Li Haoyu, Le Qichi, Zhang Zhiqiang, et al. Ultrasonic Purification of AZ31 Magnesium Melt. [J]. Special Casting & Nonferrous Alloys 35(12):1333-1336(2015) DOI： 10.15980/j.tzzz.2015.12.030.

摘要

利用超声处理AZ31镁合金熔体

考察了超声功率及静置时间对净化效果的影响

分析了超声熔体净化的机理。结果表明

超声处理可以加速熔体中夹杂物的凝聚

实现AZ31镁合金熔体的净化。AZ31镁合金熔体超声处理的最佳超声体积功率密度为0.30 W/cm3

适当延长静置时间对净化有利。铸锭中夹杂物越多

电导率越小

电导率可以表征铸锭的净化程度。

Abstract

Effects of different ultrasonic volumetric power density and holding time on AZ31 magnesium alloy melt purification by ultrasonic field were investigated.The results indicate that the ultrasonic treatment can accelerate separation of inclusions in the melt and realize melt purification.The desirable ultrasonic volumetric power density is 0.30 W/cm3

and increase of the holding time appropriately is beneficial for purification.The more inclusions the ingot has

the lower conductivity is

so the conductivity can characterize the level of purification.