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:
Feb. 17, 2009
Filed:
Jul. 21, 2001
Harald Wehage, Isenburg, DE;
Ulrich Skoda-dopp, Duisburg, DE;
Michael Breuer, Hilchenbach, DE;
Joachim Hafer, Siegen, DE;
Harald Wehage, Isenburg, DE;
Ulrich Skoda-Dopp, Duisburg, DE;
Michael Breuer, Hilchenbach, DE;
Joachim Hafer, Siegen, DE;
SMS Demag AG, Düsseldorf, DE;
Abstract
The invention relates to a production method for producing, on a production installation (), flat products, also of a large width, from continuously cast slabs having a large or medium thickness or from thin slabs. Said production installation is comprised of a single or multiple stand blooming train (), of a roller table (), which is provided for conveying the rolling stock and, optionally for oscillating, of a roller table section () with hinged heat-insulating covering hoods. The production installation is also comprised of a straightening unit () for straightening the pre-strips, of an, in particular, inductive heating installation () for effecting the controlled heating of the pre-strips to a defined temperature over the length and width of the pre-strips, of a multiple-stand finishing train (), of a delivery roller table with devices () for cooling the hot rolled strip, and of subsequently arranged coiling machines () for coiling the finished strip. In the single or two-stand blooming train (), one or more slabs comprised of carbon steels having an average carbon content of approximately 0.2 to 0.8% or of alloyed case hardening steels or heat-treatable steels are rolled on the roller table () to form one or more pre-strips. Said rolling is carried out in two stages with a pause between the same for effecting an intermediate cooling by oscillation. The pre-strips are heated over the length and width thereof to a defined temperature by the combined action of the covering hoods and heating installation, and are rolled in a multiple-stand finishing train () in the two-phase region in order to form thin high-strength finished strips.