Patents by Inventor Shida Zheng

Shida Zheng 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).

  • Method and system of all-position plasma welding process for titanium alloy pipeline
    Patent number: 11084118
    Abstract: The present disclosure provides a method of all-position plasma welding process for titanium alloy pipeline, which may be used for welding a titanium alloy pipeline made of TA2 or TC4, with a wall thickness of 3˜16 mm, and a pipe diameter of 108 mm or more. When the wall thickness is 3˜9 mm, a keyhole type technology may be used for one-time welding formation, and when the wall thickness is 9˜16 mm, grooving treatment needs to be performed for the pipeline, and the keyhole type technology is used for backing welding, and then filling welding and covering welding are performed using filler wire welding through a melt-in technology. The method includes following steps: S1: performing pre-welding treatment for the pipeline; S2: clamping the pipeline; S3: setting welding parameters; S4: starting the welding.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: August 10, 2021
    Assignee: GUANGDONG WELDING INSTITUTE (CHINA-UKRAINE E.O. PATON INSTITUTE OF WELDING)
    Inventors: Chunlin Dong, Chunfu Guo, Dan Liu, Weiqiang Sun, Boyan Liu, Yaoyong Yi, Shida Zheng, Jianglong Yi, Su Li, Ben Niu, Yanggui Xin, Xianghui Ren
  • METHOD AND SYSTEM OF ALL-POSITION PLASMA WELDING PROCESS FOR TITANIUM ALLOY PIPELINE
    Publication number: 20190184485
    Abstract: The present disclosure provides a method of all-position plasma welding process for titanium alloy pipeline, which may be used for welding a titanium alloy pipeline made of TA2 or TC4, with a wall thickness of 3˜16 mm, and a pipe diameter of 108 mm or more. When the wall thickness is 3˜9 mm, a keyhole type technology may be used for one-time welding formation, and when the wall thickness is 9˜16 mm, grooving treatment needs to be performed for the pipeline, and the keyhole type technology is used for backing welding, and then filling welding and covering welding are performed using filler wire welding through a melt-in technology. The method includes following steps: S1: performing pre-welding treatment for the pipeline; S2: clamping the pipeline; S3: setting welding parameters; S4: starting the welding.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 20, 2019
    Inventors: Chunlin Dong, Chunfu Guo, Dan Liu, Weiqiang Sun, Boyan Liu, Yaoyong Yi, Shida Zheng, Jianglong Yi, Su Li, Ben Niu, Yanggui Xin, Xianghui Ren