Patents by Inventor Liyang Pang

Liyang Pang 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).

  • Stainless steel weldment and pad combined welding method
    Patent number: 9808876
    Abstract: A stainless steel weldment and pad combined welding method includes steps of: (a) respectively processing and pairing butts of to-be-welded portions of two weldments, wherein, during pairing, inner walls of the two weldments are aligned at the same plane; the butts of the two weldments are opposed to form a V-shaped groove with an angle ?; and between bottoms of the butts of the two weldments is kept a gap L of 2-4 mm; (b) providing a copper pad at the gap between the bottoms of the butts of the two weldments, wherein the copper pad closely attaches to the inner walls of the two weldments; (c) welding the V-shaped groove to form a root pass; and (d) removing the copper pad, and filling the root pass to be welded into a cover pass.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: November 7, 2017
    Assignee: CHINA NATIONAL CHEMICAL ENGINEERING THIRD CONSTRUCTION CO., LTD
    Inventors: Jiewen Xia, Qingping Huang, Jialin Chen, Yuxian Su, Wenwei Li, Liyang Pang, Yan Wu
  • Stainless steel weldment and pad combined welding method
    Publication number: 20150144600
    Abstract: A stainless steel weldment and pad combined welding method includes steps of: (a) respectively processing and pairing butts of to-be-welded portions of two weldments, wherein, during pairing, inner walls of the two weldments are aligned at the same plane; the butts of the two weldments are opposed to form a V-shaped groove with an angle ?; and between bottoms of the butts of the two weldments is kept a gap L of 2-4 mm; (b) providing a copper pad at the gap between the bottoms of the butts of the two weldments, wherein the copper pad closely attaches to the inner walls of the two weldments; (c) welding the V-shaped groove to form a root pass; and (d) removing the copper pad, and filling the root pass to be welded into a cover pass.
    Type: Application
    Filed: September 3, 2013
    Publication date: May 28, 2015
    Inventors: Jiewen Xia, Qingping Huang, Jialin Chen, Yuxian Su, Wenwei Li, Liyang Pang, Yan Wu