Method for producing non-aging hot-dip galvanized steel strip
CA 1319086 C · Owner: Rasmet Ky · Inventors: Sippola, Pertti Juhani
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 non-aging hot-dip galvanized steel strip in a hot-dip galvanizing line with a continuous over-aging furnace at the end thereof. The steel strip is rapidly cooled from a temperature of 600 to 700°C to a temperature of about 460°C by quenching the steel strip in a zinc bath. Thereafter a steel strip is further cooled to a temperature preferably below 300°C and the steel strip is then brought into the continuous over-aging furnace. The temperature of said furnace is about 350°C and the over-aging treatment takes preferably from 2 to 3 minutes. A furnace has guide rolls arranged outside the furnace walls and the steel strip is momentarily cooled …
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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 June 15, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 15, 2010.
- 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.