超声场作用下镁合金熔体净化工艺

张志强; 乐启炽; 崔建忠; 王雪; 张海锋

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超声场作用下镁合金熔体净化工艺
Purification Process of Magnesium Alloy Melt under Ultrasonic Field
2010年30卷第11期页码：988-991
纸质出版日期： 2010 ，
DOI：

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[1]张志强,乐启炽,崔建忠,王雪,张海锋.超声场作用下镁合金熔体净化工艺[J].特种铸造及有色合金,2010,30(11):988-991+973.

Purification Process of Magnesium Alloy Melt under Ultrasonic Field[J]. Special Casting & Nonferrous Alloys, 2010,30(11):988-991.
[1]张志强,乐启炽,崔建忠,王雪,张海锋.超声场作用下镁合金熔体净化工艺[J].特种铸造及有色合金,2010,30(11):988-991+973. DOI：

Purification Process of Magnesium Alloy Melt under Ultrasonic Field[J]. Special Casting & Nonferrous Alloys, 2010,30(11):988-991. DOI：

摘要

采用XRD、SEM和图像分析软件对AZ80镁合金中夹杂的种类和形态进行了研究

并采用施加超声场来实现AZ80镁合金熔体的净化

以达到提高镁合金熔体质量的目的。研究表明

AZ80合金中夹杂主要为MgO

夹杂主要以颗粒状、团絮状、长条带状和块状形式存在。含有夹杂的AZ80合金熔体经超声处理可实现良好的净化效果

净化程度与超声功率和熔体温度有关。AZ80合金熔体在650℃经80W超声功率处理60s可以获得理想的净化效果。超声功率过大或超声处理时间过长均不利于合金熔体净化。

Abstract

The varieties and shape of impurities in AZ80 magnesium alloy were investigated by XRD

SEM and image analysis.Furthermore

in order to improve the quality

AZ80 magnesium alloy melt was purified by ultrasonic field.The results show that impurities in AZ80 magnesium alloy consist of mainly MgO which exists mainly in form of particle

block-like and long strip structure.It is also found that acceptable purification effects on AZ80 magnesium alloy with impurities can be obtained by ultrasonic treatment

which is related to ultrasonic power

treatment time and melt temperature.The desirable purification effects of the AZ80 magnesium alloy can be observed with ultrasonic treatment of 80W at 650℃ for 60s.It is deteriorated to purify AZ80 magnesium alloy with excessively high ultrasonic power or time.