Method for melting steel
CA 1081968 A · Owner: Demag Aktiengesellschaft · Inventors: Rath, Gero; Roth, Haye
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is known to melt steel in a closed electricalresistance furnace, a layer of slag being used to cover the molten metal. In this invention, an oxidizing burden having a refining action is charged into the furnace a deep bath of, the molten steel is maintained in the furnace the volume of, the molten metal corresponding to between 5 hours and 2 days production, and a thick cover of slag is maintained covering the molten steel, the slag having a decarburizing dephosphorizing, and desulphurizing effect the thickness of the slag cover, being between 250 and 1500 mm or corresponding to 1 to 10 days production. These measures permit the melting process to be carried out continuously, and the …
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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 July 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 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.