Component with integrated nickel diffusion layer
AssigneeKAMAX Holding GmbH & Co. KG
InventorsAli Solimani, Dennis Dutenhöfner
Life of this patent
Estimating the term…
Abstract
Component with a component (1) made of steel, wherein the component is at least partially coated with a nickel diffusion layer (10), and the layer thickness of the nickel diffusion layer (10) is 1-500 μm and the nickel diffusion layer (10) has a nickel content, based on the total weight of the nickel diffusion layer, of 2 wt. % above the nickel content of the steel up to a maximum concentration, the nickel content in the nickel diffusion layer (10) increasing continuously in the direction of the surface (12) of the nickel diffusion layer (10) from 2% by weight up to the maximum concentration and the maximum concentration being 20-100% by weight.
Claims20
A component comprising:
- a steel component,
- wherein the component is at least partially coated with a nickel diffusion layer, the layer thickness of the nickel diffusion layer being 1-500 μm,
- wherein the nickel diffusion layer has a nickel content, based on the total weight of the nickel diffusion layer, of 2% by weight above the nickel content of the steel up to a maximum concentration,
- wherein the nickel content in the nickel diffusion layer increases continuously in the direction of a surface of the nickel diffusion layer from 2% by weight above the nickel content of the steel to the maximum concentration, and
- wherein the maximum concentration is 20-100% by weight.
A method of manufacturing a component, comprising the steps of:
- providing a component with a steel component,
- applying a nickel layer comprising ≥30% by weight of nickel, based on the total weight of the nickel layer, to the steel component, and
- heating the component and the nickel layer to 750 to 950° C. for at least 10 minutes, preferably at least 20 minutes, thereby producing a nickel diffusion layer on the steel component.
A battery arrangement or fuel cell, comprising:
- a component having a fastening means with a threaded area,
- wherein the component is at least partially coated with a nickel diffusion layer in the threaded area, the layer thickness of the nickel diffusion layer being 1-500 μm,
- wherein the nickel diffusion layer has a nickel content, based on the total weight of the nickel diffusion layer, of 2% by weight above the nickel content of the steel up to a maximum concentration,
- wherein the nickel content in the nickel diffusion layer increases continuously in the direction of a surface of the nickel diffusion layer from 2% by weight above the nickel content of the steel to the maximum concentration, and
- where the maximum concentration is 20-100% by weight.
Dependencies are inferred from the claim text.