Method for controlling the thickness of an intermetallic layer on a continuous steel product in a continuous hot-dip galvanizing process
CA 1328785 C · Owner: Sippola, Pertti Juhani · 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 present invention relates to a method for controlling the thickness of an intermetallic layer on a continuous steel product in a continuous hot-dip galvanizing line. The steel product is rapidly cooled by quenching in a zinc bath and the structure of the coating to be formed on the steel product is controlled by directing a flow of molten zinc, cooled to a temperature 1° to 15°C below the operating temperature of the zinc bath, towards the steel strip. At least a part of said flow is preferably directed towards the steel product close to its immersion point into the zinc bath obli-, quely against the movement direction of the steel product. (Figure 3)
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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 April 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 2011.
- 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.