C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
38/22
C21D 1/767 (2006.01) C21D 1/613 (2006.01) C21D 1/773 (2006.01) F27B 5/16 (2006.01) F27D 7/04 (2006.01) F27B 5/06 (2006.01) F27B 5/14 (2006.01)
Patent
CA 1313043
ABSTRACT OF THE DISCLOSURE Rapid heating and rapid cooling of metallic work pieces using inert gases in a vacuum oven are achieved if the heating conductors are configured as pipes that incorporate drilled holes open to the interior space within the oven and are connected through electrical insulators with the cooling gas distribution system.
581507
Heilmann Paul
Heumuller Erwin
Kalbfleisch Fritz
Preisser Friedrich
Schuster Rolf
Aktiengesellschaft Degussa
Marks & Clerk
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