Patent ID: 6470550
Filing Date: 2002-10-29
Classification: B22D,Y10T

Abstract:
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.