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US 2005/0028958 A1Published application
Hollow nickel shapes by vapor deposition
AssigneeWeber Manufacturing Limited
InventorsReinhart Weber, Konrad Benkovski, Alan Horst
Life of this patent
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Abstract
A method and apparatus for producing a nickel shape or shell employs nickel vapor deposition onto the inside surface of a closed, multi-part mandrel. The closed multi-part mandrel eliminates the need for a separate deposition chamber and the nickel vapor deposition creates a nickel shell in the shape of the complete or multi-part partial mandrel internal surface resulting in a hollow or partially hollow nickel product.
Claims25
A method of producing a nickel article by nickel vapor deposition, comprising the steps of:
- providing a hollow multi-part mandrel having interior wall portions defining at least a portion of the exterior surface of a nickel article to be produced;
- purging the hollow multi-part mandrel of oxygen;
- heating said multi-part mandrel interior wall portions to a temperature sufficient to deposit nickel thereon in the presence of nickel carbonyl vapor;
- passing nickel carbonyl vapor through the heated hollow multi-part mandrel to produce said nickel article;
- purging the interior of the nickel article and the multi-part mandrel of nickel carbonyl vapor;
- and
- removing the nickel article from the mandrel.
4 more elements
Apparatus for producing nickel articles by nickel vapor deposition, comprising:
- a first mandrel member including a wall having a first mandrel surface defining partially a nickel article to be produced, the first mandrel member also having a first parting line surrounding the first mandrel surface;
- a second mandrel member including a wall having a second mandrel surface defining an additional portion of said article to be produced, the second mandrel member having a second parting line surrounding the second mandrel surface and being configured to mate with the first parting line to form an enclosure defining said article and permitting removal of said article upon opening of said mandrel members;
- heating means mounted in the mandrel members for heating said first and second mandrel surfaces to a predetermined temperature;
- and
- at least one inlet diffuser and at least one outlet diffuser mounted in the mandrel members for the passage of vapor through said enclosure.
2 more elements
Dependencies are inferred from the claim text.