Sintered cermets for tool and wear applications
CA 1070717 A · Owner: Teledyne Industries · Inventors: Rudy, Erwin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition of material comprising aluminum oxide and refractory transition metal diborides, with additions of magnesium oxide and optionally, transition metal carbides, nitrides carbonitrides and iron, group metals for sintering and grain morphology control is disclosed, which, is particularly useful as a cutting tool for steels cast iron, and hard to, machine materials such as superalloys. In contrast to the TiC-Al2O3 cermets of the prior art which have to be hot pressed for optimum properties a large, portion of the cermets of the invention can also be fabricated without, detriment to performance, by sintering the cold pressed powder compacts in an inert furnace atmosphere at …
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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 January 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
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.