Improved composite powders for thermal spray coatings

Details Improved composite powders for thermal spray coatings Improved composite powders for thermal spray coatings

C - Chemistry, Metallurgy

09

D

C09D 5/46 (2006.01) B22F 1/02 (2006.01) C23C 4/08 (2006.01)

Patent

CA 2171191

Composite thermal spray powders having a core (28) to which fine particles of exothennically reacting aluminum or aluminum alloy (22) and iron or copper fine particles (24) are bonded. The thermal spray powders may be produced by an agglomerating technique, and are useful in producing coatings having both high adhesive bond strength and good machinability.

Poudres composites améliorées pour revêtements de métallisation à chaud, pourvues d'un noyau (28) auquel sont liées de fines particules d'alliage d'aluminium ou d'aluminium (22) et de fer ou de cuivre (24) qui subissent une réaction exothermique. Les poudres pour métallisation à chaud peuvent être produites par une technique d'agglomération. Elles sont utiles pour produire des revêtements possédant à la fois une grande solidité de liaison et une bonne aptitude à l'usinage.

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