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:
Oct. 13, 2015
Filed:
Nov. 23, 2010
Ming Zou, Panzhihua, CN;
Dongsheng Mei, Chengdu, CN;
Quan Xu, Chengdu, CN;
Yong Deng, Panzhihua, CN;
Hua Guo, Chengdu, CN;
Ming Liu, Chengdu, CN;
LI Tang, Panzhihua, CN;
Yun Zhao, Panzhihua, CN;
Gongming Tao, Panzhihua, CN;
Ming Zou, Panzhihua, CN;
Dongsheng Mei, Chengdu, CN;
Quan Xu, Chengdu, CN;
Yong Deng, Panzhihua, CN;
Hua Guo, Chengdu, CN;
Ming Liu, Chengdu, CN;
Li Tang, Panzhihua, CN;
Yun Zhao, Panzhihua, CN;
Gongming Tao, Panzhihua, CN;
PANGANG GROUP CO., LTD., Panzhihua, CN;
PANGANG GROUP RESEARCH INSTITUTE CO., LTD., Chengdu, CN;
PANGANG GROUP PANZHIHUA STEEL & VANADIUM CO., LTD., Panzhihua, CN;
Abstract
A high carbon content and high strength heat-treated steel rail including by weight 0.80-1.20% carbon, 0.20-1.20% silicon, 0.20-1.60% manganese, 0.15-1.20% chromium, 0.01-0.20% vanadium, 0.002-0.050% titanium, less than or equal to 0.030% phosphorus, less than or equal to 0.030% sulfur, less than or equal to 0.010% aluminum, less than or equal to 0.0100% nitrogen, and iron. The steel rail has excellent wear resistance and plasticity and can satisfy the requirement for overloading. A method for producing the steal rail by heating a slab to a heating temperature, multi-pass rolling, and accelerated cooling, wherein a maximum heating temperature (° C.) of said slab is equal to 1,400 minus 100[% C], [% C] representing the carbon content (wt. %) of said slab multiplied by 100.