Continuous casting mold for beam blanks
CA 1188479 A · Owner: Nippon Steel Corporation · Inventors: Ariyoshi, Toshihiko; Ono, Hitoshi; Masui, Tamenori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The continuous casting of beam blanks involves a problem in that cracks are frequently formed at the fillet parts thereof. In a known type of continuous casting the, mold 1 is provided with a taper at the web part 5 in the casting direction so as to decrease the number of restrained cracks in the beam blanks. In the present invention the curvature 1/R of the, curved fillet parts 9 successively varies in accordance with the amount of free shrinkage of the solidified shell 3, thereby decreasing the tendency of the restrained crack formation. Such variation in curvature is particularly significant in the casting of beam blanks having a web height close to 1 m.
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 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
- 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.