Patents by Inventor CHANGDONG ZOU

CHANGDONG ZOU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wire rod for ultrahigh-strength steel cord and manufacturing method thereof
    Patent number: 12378629
    Abstract: The present invention discloses a wire rod for an ultrahigh-strength steel cord and a manufacturing method thereof. The manufacturing method includes: smelting molten steel where inclusions in sizes ?5 ?m are at a number density ?0.5/mm2 and sizes of inclusions are ?30 ?m; casting the molten steel into an ingot blank with a center carbon segregation value of 0.92-1.08; cogging the ingot blank into an intermediate blank with a center carbon segregation value of 0.95-1.05; rolling the intermediate blank into a wire rod; and performing temperature control cooling on the wire rod to obtain a wire rod with high purity, high homogeneity and tensile strength ?1,150 MPa. The wire rod may be used for an ultrahigh-strength steel cord with single tensile strength ?3,600 MPa.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 5, 2025
    Assignees: INSTITUTE OF RESEARCH OF IRON AND STEEL, JIANGSU PROVINCE/SHA-STEEL, CO., LTD., ZHANGJIAGANG RONGSHENG SPECIAL STEEL CO., LTD., JIANGSU SHAGANG GROUP CO., LTD.
    Inventors: Changdong Zou, Han Ma, Jiaqi Zhao, Kui Shen, Xiaofeng Cai, Yixin Shi, Yonglin Huang
  • WIRE ROD FOR ULTRAHIGH-STRENGTH STEEL CORD AND MANUFACTURING METHOD THEREOF
    Publication number: 20220340996
    Abstract: The present invention discloses a wire rod for an ultrahigh-strength steel cord and a manufacturing method thereof. The manufacturing method includes: smelting molten steel where inclusions in sizes ?5 ?m are at a number density ?0.5/mm2 and sizes of inclusions are ?30 ?m; casting the molten steel into an ingot blank with a center carbon segregation value of 0.92-1.08; cogging the ingot blank into an intermediate blank with a center carbon segregation value of 0.95-1.05; rolling the intermediate blank into a wire rod; and performing temperature control cooling on the wire rod to obtain a wire rod with high purity, high homogeneity and tensile strength ?1,150 MPa. The wire rod may be used for an ultrahigh-strength steel cord with single tensile strength ?3,600 MPa.
    Type: Application
    Filed: October 17, 2019
    Publication date: October 27, 2022
    Inventors: CHANGDONG ZOU, HAN MA, JIAQI ZHAO, KUI SHEN, XIAOFENG CAI, YIXIN SHI, YONGLIN HUANG