Methods of making tooling to be used in high temperature casting and molding
AssigneesShear Tool, Inc., Flame Spray Coating Co., Inc.
InventorsJames E. Kowalczyk, Rick J. Bolyea
Life of this patent
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Abstract
A method of making or reconstituting tooling to be used in the processing of high temperature molten material comprises machining an undercut in the tooling surface which terminates at a shoulder and provides an inset barrier receiving surface; a chemical barrier providing interface coating system to which a ceramic-based material will fuse, is fused over the undercut receiving surface. Then a thermally-insulative ceramic-based coating is fused to the interface system to fill the undercut and merge with the tooling surface.
Claims23
In a method of making or reconstituting a tooling having a tool surface, to be used in the processing of high temperature molten material;
- the steps comprising:
- a. machining an undercut surface in the tooling surface which terminates at a shoulder and provides an inset, edge-trapping receiving surface in the tooling with an end marginal wall;
- b. preparing said receiving surface for the reception of a barrier layer which fills the undercut and merges with said tooling surface bordering said undercut;
- c. fusing a chemical barrier providing an interface coating system to which a ceramic-based material will fuse, over said receiving surface as a layer portion of said barrier layer;
- and
- d. fusing a thermally-insulative ceramic-based coating material over said interface system as a second layer portion of said barrier layer.
Dependencies are inferred from the claim text.