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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.:

US 12234522 B1

PDFFull Text
Date of Patent:
Feb. 25, 2025

Filed:

Nov. 08, 2019

Method for controlling carbide network in a bearing steel wire rod by controlling cooling and controlling rolling

Applicants:

Jiangyin Xingcheng Gold Materials Co., Ltd, Jiangsu, CN;

Jiangyin Xingcheng Special Steel Works Co., Ltd, Jiangsu, CN;

Inventors:

Lin Zhang, Jiangsu, CN;

Jianfeng Zhang, Jiangsu, CN;

Changhe Lu, Jiangsu, CN;

Yuehui Guan, Jiangsu, CN;

Guozhong Li, Jiangsu, CN;

Xiaohong Xu, Jiangsu, CN;

Yun Bai, Jiangsu, CN;

Hao Zong, Jiangsu, CN;

Jiafeng He, Jiangsu, CN;

De Chen, Jiangsu, CN;

Zhen Huang, Jiangsu, CN;

Jia Yang, Jiangsu, CN;

Assignees:

JIANGYIN XINGCHENG GOLD MATERIALS CO., LTD, Jiangsu, CN;

JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO., LTD, Jiangsu, CN;

Attorneys:

Yue (Robert) Xu

Apex Attorneys at Law, LLP

Primary Examiner:

Nicholas A Wang

Int. Cl.
CPC ...
C21D 11/00 (2006.01); C21D 6/00 (2006.01); C21D 8/06 (2006.01); C21D 9/52 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/50 (2006.01);
U.S. Cl.
CPC ...
C21D 11/005 (2013.01); C21D 6/004 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/065 (2013.01); C21D 9/525 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/50 (2013.01);
Abstract

A method for controlling carbide network in a bearing steel wire rod by controlling cooling and rolling, comprises the following steps: rapidly rolling a bar to a wire rod and spinning it into a loose coil, controlling the rolling temperature at 780° C.-880° C.; and the spinning temperature at 750° C.-850° C.; carrying out on-line controlling cooling of continuous loose coils using EDC water bath austempering cooling process, controlling the cooling rate at 2.0° C./s-10° C./s, and controlling the final cooling temperature within 620-630° C.; after EDC water bath austempering cooling, using slow cooling under a cover, and the temperature is controlled to be 400° C.-500° C. when being removed out of the cover; after slow cooling, collecting coils, and cooling in air to the room temperature.

Find Patent Forward Citations

Zhang, Lin. (2025). Method for controlling carbide network in a bearing steel wire rod by controlling cooling and controlling rolling (U.S. Patent No. 12234522). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12234522

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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