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US 11,021,805 B2Granted
Method for the production of electroplated components
AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorWulf Pfeiffer
Life of this patent
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Abstract
Disclosed is a method for the production of electroplated components. In the disclosed method, an edge layer of a component to be coated is subjected to a mechanical treatment in which the edge layer is deformed at least in portions, consequently the structure of the edge layer being modified at least in portions and hydrogen traps being produced in the modified portions of the edge layer.
Claims15
A method for producing electroplated components, in which
- a) an edge layer of a component to be coated is subjected to a mechanical treatment, in which the edge layer is deformed at least in portions, consequently the structure of the edge layer being modified at least in portions and, in the modified portions of the edge layer, hydrogen traps being produced, and
- b) at least on a part of the surface of the mechanically treated edge layer of the component to be coated, a coating is electrodeposited, hydrogen being released during the electrodeposition which penetrates into the mechanically treated edge layer at least partially,
- the hydrogen traps produced in the modified portions of the edge layer essentially binding the totality of the hydrogen penetrating into the mechanically treated edge layer during the electrodeposition in step b);
- wherein it is determined or estimated before step a) what volume of hydrogen will penetrate into the mechanically treated edge layer during the electrodeposition in step b), and
- the mechanical treatment in step a) is effected such that the total volume of the hydrogen traps produced in the modified portions of the edge layer is greater than or equal to the volume of hydrogen determined or estimated before step a).
2 more elements
A method for producing electroplated components, in which
- a) an edge layer of a component to be coated is subjected to a mechanical treatment, in which the edge layer is deformed at least in portions, consequently the structure of the edge layer being modified at least in portions and, in the modified portions of the edge layer, hydrogen traps being produced, and
- b) at least on a part of the surface of the mechanically treated edge layer of the component to be coated, a coating is electrodeposited, hydrogen being released during the electrodeposition which penetrates into the mechanically treated edge layer at least partially,
- the hydrogen traps produced in the modified portions of the edge layer essentially binding the totality of the hydrogen penetrating into the mechanically treated edge layer during the electrodeposition in step b);
- wherein it is determined or estimated, before step a), to what depth the hydrogen will penetrate into the mechanically treated edge layer during the electrodeposition in step b), and the mechanical treatment in step a) is effected such that the hydrogen traps produced in the edge layer are produced at least in the portions, the surface of which is intended to be coated in step b), to this depth determined or estimated before step a).
1 more element
Dependencies are inferred from the claim text.