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:
Mar. 29, 2011
Filed:
Oct. 15, 2009
Yuichi Tsukaguchi, Ibaraki, JP;
Masayuki Kawamoto, Ibaraki, JP;
Masahito Hanao, Ibaraki, JP;
Atsushi Hirata, Wakayama, JP;
Hiroshi Hayashi, Wakayama, JP;
Manabu Adachi, Wakayama, JP;
Yuichi Tsukaguchi, Ibaraki, JP;
Masayuki Kawamoto, Ibaraki, JP;
Masahito Hanao, Ibaraki, JP;
Atsushi Hirata, Wakayama, JP;
Hiroshi Hayashi, Wakayama, JP;
Manabu Adachi, Wakayama, JP;
Sumitomo Metal Industries, Ltd., Osaka, JP;
Abstract
A method for continuously casting a billet with a small cross section in which a curved type or vertical type continuous casting machine is used while oscillating the mold upward and downward is characterized in that the casting machine is provided with a mechanism for withdrawing speed oscillation. The mechanism has structural play in the directions of driving and reverse driving in such a manner that the amount of a play-incurred displacement from the neutral position of the structural play in the direction of billet driving or reverse driving is ±2 to ±30 mm in the direction of driving on the pinch roll circumferential length equivalent basis. The mechanism produces a returning force toward the neutral position and operational parameters such as the billet length, the specific amount of secondary cooling water, the casting speed as well as the oscillation amplitude and frequency are optimized.