Patents by Inventor Shifang ZHONG

Shifang ZHONG 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).

  • QUANTITATIVE EVALUATION METHOD FOR SENSITIVITY OF WELDING TRANSVERSE COLD CRACKS IN TYPICAL JOINT OF JACKET
    Publication number: 20230228728
    Abstract: The present invention discloses a quantitative evaluation method for sensitivity of welding transverse cold cracks in a typical joint of a jacket, including following steps: S1, performing macroscopic analysis, metallographic analysis, fracture analysis and hardness analysis on cracks of a failed component to obtain main causes of cold crack failure; and S2, designing and processing a dedicated sample, and performing rigid restraint crack tests on the dedicated sample at different preheating temperatures to obtain a cracking/non-cracking critical restraint stress ?1cr of the sample.
    Type: Application
    Filed: September 28, 2022
    Publication date: July 20, 2023
    Inventors: Yongdian HAN, Shifang ZHONG, Lianyong XU, Hongyang JING, Lei ZHAO, Kangda HAO
  • Quantitative evaluation method for sensitivity of welding transverse cold cracks in typical joint of jacket
    Patent number: 11703497
    Abstract: The present invention discloses a quantitative evaluation method for sensitivity of welding transverse cold cracks in a typical joint of a jacket, including following steps: S1, performing macroscopic analysis, metallographic analysis, fracture analysis and hardness analysis on cracks of a failed component to obtain main causes of cold crack failure; and S2, designing and processing a dedicated sample, and performing rigid restraint crack tests on the dedicated sample at different preheating temperatures to obtain a cracking/non-cracking critical restraint stress ?1cr of the sample.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: July 18, 2023
    Assignee: Tianjin University
    Inventors: Yongdian Han, Shifang Zhong, Lianyong Xu, Hongyang Jing, Lei Zhao, Kangda Hao