Magnesium Technology by Horst Friedrich, Barry L. Mordike, Horst E. Friedrich, Barry

By Horst Friedrich, Barry L. Mordike, Horst E. Friedrich, Barry Leslie Mordike

Magnesium, with a density of 1.74 g/cm², is the lightest structural steel and magnesium are more and more selected for weight-critical functions akin to in land-based delivery platforms. "Magnesium expertise" considerably updates and enhances current reference resources in this key fabric. It assembles overseas contributions from seven nations overlaying a variety of learn courses into new alloys with the needful estate profiles, i.e., the present country of either learn and technological purposes of magnesium. particularly, the overseas workforce of authors covers key issues, corresponding to: casting and wrought alloys; fabrication equipment; corrosion and safety; engineering standards and techniques, with examples from the car, aerospace, and consumer-goods industries, and recycling. This authoritative reference and review addresses fabrics researchers in addition to layout engineers.

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The plant became uneconomical as the selling price of magnesium dropped and the plant was closed in October 2001. In 1961, the general manager the Chevrolet Division of General Motors (GM), contacted the New York office of Norsk Hydro that was managed by Sven Fougner. GM wished to find a secure supply of magnesium from a source other than Dow. Fougner had also been contacted by technical people from the Great Salt Lake about the potential for a magnesium plant using brine from the lake for feed for a magnesium and chlorine plant.

Dr. Lloyd Pidgeon of the National Research Council of Canada developed the silicothermic process as mentioned by IG Farben in some of their 1930s magnesium work. The ability of Dr. Pidgeon and a small group of researchers to transfer the pilot results to a full commercial plant within 18 months was a great accomplishment resulting in the process being named the Pidgeon process. The process uses a briquetted charge of calcined dolomite and ferrosilicon that is placed in a 10-foot long horizontal retort.

The Australian Magnesium Corporation’s project, which is currently in the basic engineering phase, will be the second application of the technology. Dominion Magnesium purchased the original Pidgeon process plant from the government of Canada in 1945. An extrusion press was installed at Dominion Magnesium in 1948. The 5,000 tons per year Pidgeon process silicothermic plant, which is at present owned by Timminco, has been modernized and expanded to 10,000 tons per year and continues to produce primarily magnesium along with calcium, strontium and barium.

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