Method and apparatus for treating metals

Details Method and apparatus for treating metals Method and apparatus for treating metals

F - Mech Eng,Light,Heat,Weapons

27

D

38/23, 148/24

F27D 15/02 (2006.01) C21D 1/53 (2006.01) C23C 8/06 (2006.01) C23C 8/34 (2006.01)

Patent

CA 1206853

ABSTRACT OF THE DISCLOSURE This application discloses a method and apparatus for conducting various metal treatment processes including nitriding, carbonitriding, nitrocarburizing, surface activation, and selective oxidation in any desired sequence in the same fluidized bed furnace. The apparatus comprises a fluidized bed furnace having a humidifier system including a humidifier and superheater and the method involved exposing a metal workpiece sequentially to at least two separate metal treatment atmospheres in a fluidized bed furnace.

445936

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