The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2000
Filed:
Jan. 13, 1999
Fernand Allegro, Ruminghem, FR;
Frederic Bertolini, Ghyvelde, FR;
Rodolphe Devos, Le Frinckoucke, FR;
Regis Mieze, Grand Fort Philippe, FR;
Philippe Reynoudt, Bierne, FR;
Bruno Sparty, Teteghem, FR;
Michel Chauvire, Coueron, FR;
Gilles Revoir, Sauteron, FR;
Didier Becler, Lantefontaine, FR;
Christophe Silvy-Leligois, Metz, FR;
Sollac, Puteaux, FR;
Abstract
A method of controlling a continuous skin-pass and reduction operation for a metal strip includes the steps of passing a strip through a gap between working rollers of at least two successive rolling stands, only an upstream one of the stands providing substantial thickness reduction of the strip; determining an extension rate of the strip provided by the upstream stand; determining a tension of the strip downstream of the upstream stand; adjusting the speed of the working rollers of the upstream stand compared to the speed of the working rollers of a downstream one of said stands according to the determination of the extension rate; and adjusting the squeezing force of the upstream stand according to the downstream tension determination. A response time to the step of adjustment of the squeezing force is longer than a response time to the step of adjusting the speed of the working rollers.