Arc steelmaking
CA 1079072 A · Owner: Foseco International Limited · Inventors: Jones, Evan T. R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a slag conditioner for use in electric arc steelmaking which comprises 30 to 80% by weight of alumina, 10 to 30% by weight of aluminium 5 to 40% by weight fluorspar and 0 to 20% by weight of alkali metal carbonate. The conditioner is added with lime to deoxidised steel suitably in an amount Or from 5 to 15 Kg/tonne of steel to promote rapid reduction of the initial refining slag iron oxide content together with increased slag fluidity and a faster rate of lime dissolution to form a reactive slag. - 1 -
Read the whole patent
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 June 10, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 10, 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.