Cryogenic and heat process for treating sintered carbide...

C - Chemistry – Metallurgy – 21 – D

Patent

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C21D 9/18 (2006.01) B22F 1/00 (2006.01)

Patent

CA 2275505

This disclosure relates to a process for treating sintered carbide metals, typically cutting tools and parts subject to high abrasive and corrosive wear, to enhance their service life. The process involves exposing the items to be treated to gaseous nitrogen for various periods of time with subsequent elevated heat treatment.

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