Metal casting with hardened surface layer and method for the manufacture thereof
CA 1111673 A · Owner: Nauchno-Issledovatelsky I Konstruktorsky Institut Energotekhniki · Inventors: Mikhailov, Anatoly M.; Akhmetov, Gennady S.; Sarlin, Mikhail K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is concerned with a metal casting having a hardened surface layer formed of a casting metal and alloying elements, wherein the hardened surface layer contains grains of a refractory material uniformly distributed throughout its thickness forming inclusions of the refractory material in the hardened surface layer, the alloying elements being such as to impart to the casting metal alloy adequate toughness to retain the inclusions therein; the casting metal and alloying elements extend between the spaces defined between the grains forming the inclusions of the refractory material and thus, retain the inclusions in the surface layer. The metal casting of the invention is …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 1998.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.