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:
Nov. 28, 1989
Filed:
Jan. 24, 1989
Manfred Wolf, Zurich, CH;
Clecim, Cergy-Pontoise, FR;
Davy (Distington) Limited, Cumbria, GB;
Sumitomo Heavy Industries Ltd., Tokyo, JP;
Abstract
Steel is teemed into one end of a continuous casting mold to form a continuously cast strand which is withdrawn through the other end of the mold. The mold is oscillated and the strand is accelerated through a first range of speeds less than 1.2 meter per minute and a second range of speeds greater than this value. As the strand accelerates through the first range, the oscillation frequency is increased from a value between 60 and 120 cycles per minute to a value between 120 and 200 cycles per minute while holding the stroke constant. On the other hand, when the strand accelerates through the second range, the oscillation frequency is maintained constant and the stroke is increased with strand speed. A condition of negative strip is maintained in both ranges and the time for which negative strip occurs during each oscillation cycle approximates 0.1 second.