Process and plant for obtaining steel strip coils having cold-rolled characteristics and directly obtained in a hot-rolling line
CA 2085223 A1 · Owner: Hoogovens Staal B.V. · Inventors: Gosio, Giovanni; Arvedi, Giovanni; Arvedi, Giovanni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for obtaining steel strip coils with characteristics of a cold-rolled product, directly in a hot-rolling line comprises, subsequently to steps of casting and thickness reduction at a temperature of more than 1100 ·C upon solidification induction, heating of the product and a further step of hot rolling above, point Ar3, a step of cooling and temperature control in a range of between 600 and 250 ·C, thus lower than said point Ar3 as well, as one or more passes of cold-rolling in series with final, coiling of the obtained product. Also a preferred plant is described for putting into practice such a process.
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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
- Filed July 5, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 2013.
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Timeline
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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.