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. 01, 2016
Filed:
Aug. 01, 2013
Nhk Spring Co., Ltd., Yokohama-shi, Kanagawa, JP;
Yoshihiro Koshita, Kanagawa, JP;
Yutaka Wakabayashi, Kanagawa, JP;
Kosuke Takeo, Kanagawa, JP;
Koichi Ito, Kanagawa, JP;
NHK SPRING CO., LTD., Yokohama-Shi, JP;
Abstract
Provided are a method for manufacturing a stabilizer and a heating device, the method being able to suppress the occurrence of unevenness in the hardness of a curved portion of a semimanufactured product of the stabilizer and reduce the process time in a tempering process. In electric heating in a first heating step (step A), the temperature of an inside portion of a shoulder can be steeply increased to a temperature (<UA) close to a target temperature (UA) by continuously passing an electric current. In electric heating in a second heating step (step C), the temperature difference between the maximum achieved temperature of the inside portion of the shoulder and the maximum achieved temperature of an outside portion thereof can be decreased by intermittently passing an electric current, thereby making it possible to set the maximum achieved temperatures to a desired target temperature (UA) or a temperature close thereto. In the outside portion, a tempered structure similar or approximately similar to that of the inside portion can be obtained.