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US 5,635,255 AGranted
Method for producing corrosion and wear resistant member by coating substrate with an iron alloy material powder
AssigneeSamsung Heavy Industries Co., Ltd.
InventorsKwang W. Kwon, Kang H. Kim
Life of this patent
Estimating the term…
Abstract
Erosion and wear resistant iron alloy, comprising: Cr 20.0-36.0% by weight, B 2.5-5.0% by weight, Mn 0.5-3.2% by weight, Si 0.05-0.6 by weight, Mo 0.3-2.5% by weight, V 0.05-0.3% by weight, Nb 0.03-0.3% by weight, P 0.5% by weight or less, C 0.05-0.3% by weight, and a trace of unavoidable impurities, which confers superior corrosion and wear resistance upon abraded or corroded portions by coating or molding.
Claims10
A method for producing wear-resistant members, comprising the steps of:
- providing powder of an iron alloy material including Cr 20.0 to 36.0% by weight, B 2.5 to 5.0% by weight, Mn 0.5 to 3.2% by weight, Si 0.05 to 0.6% by weight, Mo 0.3 to 2.5% by weight, V 0.05 to 0.3% by weight, Nb 0.03 to 0.3% by weight, P 0.5% by weight or less, C 0.05 to 0.3% by weight, and a trace of unavoidable impurities:
- performing thermal spraying or cladding-by-welding said powder on the surfaces of worn members to form a coating layer.
A method for producing wear-resistant members, comprising the steps of:
- providing powder of an iron alloy material including Cr 20.0 to 36.0% by weight, B 2.5 to 5.0% by weight, Mn 0.5 to 3.2% by weight, Si 0.05 to 0.6% by weight, Mo 0.3 to 2.5% by weight, V 0.05 to 0.3% by weight, Nb 0.03 to 0.3% by weight, P 0.5% by weight or less, C 0.05 to 0.3% by weight, and a trace of unavoidable impurities;
- slurry coating a substrate with said powder;
- subjecting the coating layer to thermal coating in an induction or electric furnace, atmosphere furnace or vacuum furnace;
- cutting the coated substrate with a press;
- and
- molding by winding.
3 more elements
Dependencies are inferred from the claim text.