C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
C21D 1/26 (2006.01) C21D 1/70 (2006.01) C21D 1/76 (2006.01) C21D 1/78 (2006.01) C21D 9/67 (2006.01) C21D 9/56 (2006.01)
Patent
CA 2090344
A process to prevent the formation of adhesives when annealing a steel band having a low carbon content uses an inert gas consisting of nitrogen and hydrogen and includes the phases of heating up, holding time and cooling. The process is characterized in that during the holding time, the steel band is coated by oxidation with a thin coating which is then completely removed by reduction during the cooling phase.
Borden Ladner Gervais Llp
Zylla Peter
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