Method for producing hot forged material from powder
CA 1136445 A · Owner: Sumitomo Electric Industries, Ltd. · Inventors: Noji, Susumu; Kuroishi, Nobuhito; Takeda, Yoshinobu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for producing a hot forged material from powder having a particularly high frictional sliding property as well as high tensile strength compression, strength and toughness, for use in assemblies such as a steel, gear, cam, and the like the said material comprising Si in 1.4~ 3.5%, Mn in 0.2~0.9% and C in 1.0~2.0% by weight the remainder, substantially consisting of iron 0.2~1.2% of free carbon out of, the carbon content being dispersed and precipitated as spherical graphite microparticles 0.5~10µm dimension wherein (1) swarf from, a mother material of spheroidal graphite cast iron (FCD cast iron) is pulverized by impact, the graphite microparticle component …
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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 30, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1999.
- 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.