Efco-Edwards Vacuum Metallurgy: Difference between revisions
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1957 Developing a process to offer metals and alloys at a stage between true vacuum melting and simple degassing; useful for high quality castings of high alloys where it was impracticable to contain the mold in a vacuum<ref>The Times, Oct 23, 1957</ref> | 1957 Developing a process to offer metals and alloys at a stage between true vacuum melting and simple degassing; useful for high quality castings of high alloys where it was impracticable to contain the mold in a vacuum<ref>The Times, Oct 23, 1957</ref> | ||
==See Also== | ==See Also== | ||
Revision as of 13:25, 24 April 2013
1956 Joint venture company formed by Edwards High Vacuum and Efco to offer complete metallurgical installations[1]
1957 Developing a process to offer metals and alloys at a stage between true vacuum melting and simple degassing; useful for high quality castings of high alloys where it was impracticable to contain the mold in a vacuum[2]
See Also
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