New metal strip product

C - Chemistry – Metallurgy – 23 – C

Patent

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Details

C23C 14/06 (2006.01) C23C 14/56 (2006.01)

Patent

CA 2534291

The present invention relates to a coated steel strip product with a dense and hard abrasion resistant coating on one side or both sides of said strip. The thickness of said coating is in total maximally 25 ~m, the hardness of said coating is at least 600 HV and the tensile strength of the steel strip substrate is at least 1200 MPa. The coating is preferably applied by electron beam evaporation and the coating may be, e.g., of A1203. The coated metal strip is useful for the manufacturing of doctor and coater blades for paper and printing industry.

La présente invention concerne une lame d'acier revêtu comprenant un revêtement résistant à l'abrasion dense et dur sur au moins un côté. L'épaisseur dudit revêtement est de 25 µm au maximum, sa dureté est d'au moins 600 HV et la résistance à la traction du substrat de la lame d'acier est d'au moins 1200 MPa. Le revêtement est de préférence appliqué par évaporation par faisceau électronique et le revêtement peut être à base d'Al¿2?O¿3?, par exemple. Cette lame de métal revêtu est destinée à la fabrication de racles et de lames de coucheuses pour l'industrie du papier et l'industrie graphique.

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