FIELD: metallurgy.
SUBSTANCE: protective gas mixture for the treatment of a magnesium alloy containing no zirconium, comprises, in wt %, 75-90 carbon dioxide, sulfur hexafluoride 0.5-1.0 air 8-23.5, boron compound selected from the group, comprising boron trifluoride and boron oxide, 0.5-1.02. The protective gas mixture may be used in the melting of alloys of Mg-Al-Zn, including ML5, ML5pch, VML18.
EFFECT: possibility to mechanize and automate the process, improve moulding quality by eliminating flux corrosion reducing gas content and stabilizing properties.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MODIFYING MAGNESIUM ALLOYS OF THE Mg-Al-Zn-Mn SYSTEM | 2015 |
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| CASTABLE MAGNESIUM ALLOY | 2012 |
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| MAGNESIUM CASTING ALLOY | 2018 |
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| FLUX FOR MELTING MAGNESIUM ALLOYS | 2005 |
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