Process for producing cast iron castings with a vermicular graphite structure and an apparatus for performing the process
CA 1196500 A · Owner: Fischer (Georg) Aktiengesellschaft · Inventors: Linkert, Reinhold; Hoffmann, Horst; Becker, Emil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For the production of cast iron with a vermicular graphite structure (GGV) in a converter it is suggested to desulphurize an initial melt by means of a treatment by pure magnesium and at the same time to treat the melt with magnesium, so that the end analysis shows a proportion of magnesium to sulphur from 0.8 to 2.5. Experience has shown that the desulphurization and the alloying by means of pure magnesium are less costly than the use of magnesium prealloys and that an exact production of GGV, thereby is made possible. It is not necessary to use titanium that is known for its, disadvantageous side effects. It is if required, any time, possible to change from the production of GGG to GGV …
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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 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2002.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.