Surface treatment for metal according to fluidized bed system

Details Surface treatment for metal according to fluidized bed system Surface treatment for metal according to fluidized bed system

C - Chemistry, Metallurgy

23

C

117/88, 148/36.2

C23C 24/00 (2006.01) C23C 24/10 (2006.01) C23C 26/02 (2006.01)

Patent

CA 1084821

ABSTRACT OF THE DISCLOSURE A surface treatment for a metal according to a fluidized bed system, in which a hot rolled metal is continuously subjected to an in-line treatment to suppress the formation of scale on its surface or to remove the same therefrom, and then introduced into a gaseous fluidized bed of a non-oxidizing gas, which con- tains metal or alloy particles having a low melting point, as fluidized particles, so as to bring the hot rolled metal into contact with the fluidized particles. As a result, the fluidized metal particles or alloy particles may be melted and solidified on the surface of the rolled metal to provide a coating layer of a metal or alloy having a low melting point on the surface thereof. In addition, during the surface treat- ment according to the fluidized bed system, heat treatment such as patenting or cooling may also be applied in combination therewith at the name time.

280009

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