The Technique of On-line Generating Protective Atmosphere for Mg

You Guoqiang Long Siyuan Zha Jili

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The Technique of On-line Generating Protective Atmosphere for Mg
Issue 2, Pages: 9-12(2004)
Published： 2004 ，
DOI：

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[1]游国强,,,,,,,,,龙思远,,,,,,,,,查吉利.镁合金保护气体在线发生技术的研究[J].特种铸造及有色合金,2004(02):9-12+1.

You Guoqiang Long Siyuan Zha Jili. The Technique of On-line Generating Protective Atmosphere for Mg. [J]. Special Casting & Nonferrous Alloys (2):9-12(2004)
[1]游国强,,,,,,,,,龙思远,,,,,,,,,查吉利.镁合金保护气体在线发生技术的研究[J].特种铸造及有色合金,2004(02):9-12+1. DOI：

You Guoqiang Long Siyuan Zha Jili. The Technique of On-line Generating Protective Atmosphere for Mg. [J]. Special Casting & Nonferrous Alloys (2):9-12(2004) DOI：

摘要

对镁的高温氧化机理和现有的镁合金阻燃保护方法进行了简述

介绍了镁合金保护气体在线技术的原理和技术。把S

C连续定量地加入到保持在设定工作温度的反应器中与洁净压缩空气反应

生成SO2 保护气体和CO2 辅助保护气体

并可对SO2 和CO2 进行浓度控制和调节。试验表明

镁合金液在线保护其烧损率小于SO2 和FS6 保护

仅为 3 .89%

其保护效果稳定可靠。S

C固体价廉易得

因此在线保护经济上很有优势

Abstract

The oxidation mechanism of Mg at high temperature and p rotection techniques of present Mg alloy from ignition are briefly reviewed. The principle and technical details of on-line protective atmosphere for Mg alloy are introduced. Continuously quantitative additions of S

C into reactor maintain ed at a given temperature react with clean compressed air to generate protective atmosphere SO 2 and asistant protective atmosphere CO 2 with controllable and adjustable concentration. The results showed that the burning loss rate of liqu id Mg alloy with on-line protection only is 3.8% lower than that wit h SO 2 and FS 6 protection. The on-line protective effects are reliable

avai lable

less expensive for S

C resulting in economic advantages.