Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1989-10-16
1991-03-26
Rosenberg, Peter D.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
1376253, B22B 1500
Patent
active
050028391
ABSTRACT:
Improved valve components and methods of repairing and manufacturing valve components are provided by this invention. The valve component includes a valve seat including a buttering layer of austenitic stainless steel and a cobalt-containing, hardfacing layer disposed on the buttering layer. This combination of materials provides a relatively, defect-free welding deposit or repair.
REFERENCES:
patent: 3602261 (1971-08-01), Brown
patent: 4705071 (1987-11-01), Connors, Jr. et al.
patent: 4766932 (1988-08-01), Heymann et al.
patent: 4814236 (1989-03-01), Qureshi et al.
Gavilan William A.
Qureshi Javaid I.
Rosenberg Peter D.
Westinghouse Electric Corp.
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