Title:
HIGH-STRENGTH STEEL CORD WITH LOW WIRE BREAKAGE RATE, AND ROLLING METHOD AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/024678
Kind Code:
A1
Abstract:
The present disclosure belongs to the field of metal materials. Disclosed are a high-strength steel cord with a low wire breakage rate, and a rolling method and the use thereof. The chemical components of the steel cord may comprise Nb, V and N, with ([Nb]+[V]) / [N] being 3-4.5, wherein [Nb] represents the mass fraction of niobium, [V] represents the mass fraction of vanadium, and [N] represents the mass fraction of nitrogen. The method comprises: acquiring a steel billet of a steel cord; sequentially subjecting the steel billet to heating before rolling, hot rolling, and cooling after rolling so as to obtain a steel cord wire rod. The use of the steel cord involves same being used in a tire framework material. By adding Nb, V and N and then controlling the relationship between Nb, V and N, the strength and toughness of the steel cord can be improved.
Inventors:
ZHANG FAN (CN)
REN ANCHAO (CN)
GUO LEI (CN)
YE TUMING (CN)
REN ANCHAO (CN)
GUO LEI (CN)
YE TUMING (CN)
Application Number:
PCT/CN2022/100459
Publication Date:
March 02, 2023
Filing Date:
June 22, 2022
Export Citation:
Assignee:
WUHAN IRON AND STEEL CORP (CN)
International Classes:
C22C38/14; B21B1/18; B21B3/02; B21B37/74; B60C9/00; C21D6/00; C21D8/06; C22C38/02; C22C38/04; C22C38/06; C22C38/12
Foreign References:
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| CN113862578A | 2021-12-31 | |||
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| JP2001220649A | 2001-08-14 | |||
| CN107138524A | 2017-09-08 | |||
| CN206997345U | 2018-02-13 | |||
| CN104109745A | 2014-10-22 | |||
| CN102644029A | 2012-08-22 | |||
| CN101086052A | 2007-12-12 | |||
| JP2012172218A | 2012-09-10 |
Attorney, Agent or Firm:
BEIJING ZHONGDA DEQUAN IP AGENCY CO., LTD. (CN)
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