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:
Jul. 24, 2012
Filed:
Oct. 15, 2009
Masayuki Kawamoto, Kashima, JP;
Yuichi Tsukaguchi, Kashima, JP;
Masahito Hanao, Kashima, JP;
Atsushi Hirata, Wakayama, JP;
Hiroshi Hayashi, Wakayama, JP;
Manabu Adachi, Wakayama, JP;
Masayuki Kawamoto, Kashima, JP;
Yuichi Tsukaguchi, Kashima, JP;
Masahito Hanao, Kashima, JP;
Atsushi Hirata, Wakayama, JP;
Hiroshi Hayashi, Wakayama, JP;
Manabu Adachi, Wakayama, JP;
Sumitomo Metal Industries, Ltd., Osaka, JP;
Abstract
In a mold for casting a billet with a curved type continuous casting apparatus, D(m) is an inner diameter at a lower mold edge and R(m) is a curvature radius of an outer curvature side at the lower mold edge. When a rate of change Tp (%/m) in mold inner diameter per unit length along a casting direction is Tp=(1/D)×(dD/dx)×100 (%/m), and when a rate of change Rp (%/m) in curvature radius of an outer curvature side per unit length along the casting direction is Rp=(1/R)×(dR/dx)×100 (%/m), the rate of change Tp in mold inner diameter and the rate of change Rp in curvature radius satisfy a relationship expressed Rp=(Tp/2)×(D/R), where D is a mold inner diameter at a distance x away from an upper mold edge and R in Formula 2 is a curvature radius of the outer curvature side at the distance x.