Diamond hard coating of ferrous substrates

C - Chemistry – Metallurgy – 23 – C

Patent

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Details

C23C 8/60 (2006.01) B05D 5/00 (2006.01) B29C 70/68 (2006.01)

Patent

CA 2527432

The present invention relates to hard coating of ferrous metal substrates using a laser beam with diamond particles in a metal matrix produced from precursor powders of metals which bond to the diamond particles and to the ferrous substrate. The hard coating is particularly useful for white iron castings for pumps (200) used in piping tar sand and water mixtures.

La présente invention a trait à l'application d'un revêtement résistant fait de substrats de métaux ferreux à l'aide d'un faisceau de rayons laser avec des particules de diamant dans une matrice métallique produite à l'aide de poudre de précurseurs de métaux qui se lient aux particules de diamant et au substrat ferreux. Ce revêtement résistant est particulièrement utile pour les pièces coulées de fer blanc destinées à des pompes (200) utilisées pour canaliser des mélanges d'eau et de sables bitumineux.

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