A Novel Technique for On-Line Generation of Mg-Shielding Gas

Abstract:

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A new technique capable of on-line generating SO2+CO2+N2 shielding gas via thermal chemical reaction between compressed air and a mixture of C and S powder was introduced in the present study. The test results in both laboratory and foundry indicate that the on-line generated gas is able to provide effective protection to Mg melting bath up to 730 oC as SF6+N2 shielding gas does, while its running cost is 30% less than of the latter.

Info:

Periodical:

Materials Science Forum (Volumes 488-489)

Edited by:

W.Ke, E.H.Han, Y.F.Han, K.Kainer and A.A.Luo

Pages:

77-80

DOI:

10.4028/www.scientific.net/MSF.488-489.77

Citation:

G. Q. You et al., "A Novel Technique for On-Line Generation of Mg-Shielding Gas", Materials Science Forum, Vols. 488-489, pp. 77-80, 2005

Online since:

July 2005

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Price:

$35.00

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[2] D. Milbrath et al, Development of 3M Novec 612 Magnesium Protection Fluid as a Substitute for SF6 Over Molten Magnesium, International Conference on SF6 and the Environment: Emission Reduction Strategies-November 21-22, (2002).

[3] N. Ricketts et al, Environmental Implications of Using HFC-134a as a Replacement for SF6 in the Magnesium Industry, International Conference on SF6 and the Environment.

[4] V. Revankar et al, A replacement for SF6: The Magshield system, 57th Annual World Magnesium Conference, May 21-23 2000, Vancouver, International Magnesium Association, pp.51-55.

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