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. 09, 1985
Filed:
Dec. 30, 1982
Akira Shinosaki, Hirakata, JP;
Shinji Amako, Hirakata, JP;
Kubota Ltd., Osaka, JP;
Abstract
A process for manufacturing a walking bar member for continuous casting from an elongated tubular metal blank by heating the blank at a temperature of 550.degree. to 1250.degree. C., subjecting the heated blank to plastic working which achieves a working ratio of up to 65% or a flattening ratio of over 1 but not greater than 3.0 to flatten the blank into a tubular body by compression over the entire length thereof, and machining a surface of the tubular body at the side thereof to be brought into contact with a slab to smooth the surface and provide a reduced wall thickness, the working ratio and the flattening ratio being represented by (D-H)/D.times.100 and W/H, respectively, wherein D is the outside diameter of the blank before the plastic working, H is the minor diameter of the tubular body after the plastic working, and W is the major diameter of the tubular body after the plastic working.