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:
Apr. 18, 2006
Filed:
Jan. 14, 2005
Dietmar Kolbeck, Steinfeld, DE;
Hans-günter Wobker, Bramsche, DE;
Klaus Maiwald, Parnamirim/Recife-PE, BR;
Dietmar Kolbeck, Steinfeld, DE;
Hans-Günter Wobker, Bramsche, DE;
Klaus Maiwald, Parnamirim/Recife-PE, BR;
KM Europa Metal AG, Osnabruck, DE;
Abstract
A plant for the continuous casting of aluminum strip, according to current construction type, has two counterrotating continuous casting rolls (), between which a casting gap () is formed. According to the present invention, the 1. continuous casting roll () is made of a copper material at least in its circumferential edge region, and the other, 2. continuous casting roll () is made of a steel material at least in its circumferential edge region. The copper material should have a thermal conductivity λof 230 to 260 W/m·K, and the steel material should have a thermal conductivity λof 30 to 40 W/m·K. Rejecting the prevailing idea that casting can only be performed with two continuous casting roll materials of the same kind, so as to ensure uniform crystal growth, a continuous casting roll pairing of steel and copper is provided in the present invention. In order to ensure a qualitatively high value casting microstructure, the difference in the thermal conductivity of the continuous casting rolls should not exceed a factor from 5 to 9. A ratio of thermal conductivity λof the copper material to thermal conductivity λof the steel material of 6:1 to 8:1 has proven particularly favorable.