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:
Sep. 19, 2017
Filed:
Dec. 27, 2013
Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd., Panzhihua, CN;
Pangang Group Panzhihua Steel & Vanadium Co., Ltd., Panzihua, CN;
Ming Zou, Panzhihua, CN;
Zhenyu Han, Panzhihua, CN;
Dongsheng Mei, Panzhihua, CN;
Yong Deng, Panzhihua, CN;
Hua Guo, Panzhihua, CN;
Quan Xu, Panzhihua, CN;
Chunjian Wang, Panzhihua, CN;
PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE CO., LTD., Panzhihua, CN;
PANGANG GROUP PANZHIHUA STEEL & VANADIUM CO., LTD., Panzhihua, CN;
Abstract
The present invention provides a heat treatment method of turnout track comprising performing an accelerated cooling on the turnout track to be treated having a railhead tread with a temperature of 650-900° C. so as to obtain the turnout track with full pearlite metallographic structure, wherein the accelerated cooling velocity performed on the working side of railhead of the turnout track is higher than that performed on the non-working side of the railhead of the turnout track. The present invention provides a turnout track obtained with a heat treatment process as depicted therein. The turnout track in present invention has good straightness; both the hardness and tensile strength of the working side of railhead are higher than that of the non-working side of railhead.