C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
148/28, 38/5
C21D 1/04 (2006.01) C21D 1/42 (2006.01) C21D 9/08 (2006.01)
Patent
CA 1069416
A B S T R A C T Method and apparatus for heat treating large thick- walled tubes in which the tubes are heated in two stages respectively involving flame and induction heating to austenitic conversion temperature, the stock being subsequently quenched.
250909
Forster Herbert
Landgraf Helmut
Wiedenhoff Wolfgang
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