Patents by Inventor Dashuang LIU

Dashuang LIU 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).

  • Self-shielded flux-cored welding wire with special protective slag coating formed in situ and manufacture method thereof
    Patent number: 11534873
    Abstract: A self-shielded flux-cored welding wire with a special protective slag coating formed in situ and a manufacture method thereof. The self-shielded flux-cored welding wire includes a low-carbon steel belt and a flux core powder, the flux core powder is filled in the low-carbon steel belt, the flux core powder includes the following ingredients in percentage by mass: 60-80% glass powder, 2-8% zirconium oxide powder, 0.05-0.85% graphene powder, 2-8% potassium carbonate sodium powder, 1-3% potassium titanate powder, 2-5% rutile powder, 1-5% corundum powder, 1-3% sodium fluorosilicate powder, and the balance of iron powder, and a weight of the flux core powder accounts for 13-25% of a total weight of the welding wire.
    Type: Grant
    Filed: August 8, 2020
    Date of Patent: December 27, 2022
    Assignees: HEFEI UNIVERSITY OF TECHNOLOGY, CHINA INNOVATION ACADEMY OF INTELLIGENT EQUIPMENT (NINGBO) CO., LTD.
    Inventors: Dashuang Liu, Weimin Long, Yucheng Wu, Ping Wei, Huawei Sun, Yafang Cheng
  • SELF-SHIELDED FLUX-CORED WELDING WIRE WITH SPECIAL PROTECTIVE SLAG COATING FORMED IN SITU AND MANUFACTURE METHOD THEREOF
    Publication number: 20200368853
    Abstract: A self-shielded flux-cored welding wire with a special protective slag coating formed in situ and a manufacture method thereof. The self-shielded flux-cored welding wire includes a low-carbon steel belt and a flux core powder, the flux core powder is filled in the low-carbon steel belt, the flux core powder includes the following ingredients in percentage by mass: 60-80% glass powder, 2-8% zirconium oxide powder, 0.05-0.85% graphene powder, 2-8% potassium carbonate sodium powder, 1-3% potassium titanate powder, 2-5% rutile powder, 1-5% corundum powder, 1-3% sodium fluorosilicate powder, and the balance of iron powder, and a weight of the flux core powder accounts for 13-25% of a total weight of the welding wire.
    Type: Application
    Filed: August 8, 2020
    Publication date: November 26, 2020
    Inventors: Dashuang LIU, Ping WEI, Weimin LONG, Mingfang WU, Jiayou WANG, Huawei SUN, Yafang CHENG
  • High-efficient energy-saving and surfacing layer well-forming self-shielded flux-covered welding wire and manufacture method
    Patent number: 10610978
    Abstract: It discloses a high-efficient energy-saving and surfacing layer well-forming self-shielded flux-cored welding wire. A low-carbon steel strip is used as an outer cover, and a flux core comprises the following components in percentage by mass: 42-60% high carbon ferrochrome with a particle size of 80 meshes, 10-18% ferrosilicon, 16-25% ferroboron, 2-8% rare earth silicon, 2-8% graphite, 1-4% aluminum magnesium alloy, 2-5% manganese powder and the balance of iron powder, wherein the graphite, the aluminum magnesium alloy and the manganese powder are all added with two particle sizes including 60 meshes and 200 meshes, and the weight of the flux core powder accounts for 49-53% of the total weight of the welding wire.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: April 7, 2020
    Assignees: JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY, China (Ningbo) Innovation Academy of Intelligent Equipment Co., Ltd., Zhengzhou Research Institute of Mechanical Engineering Co., Ltd.
    Inventors: Dashuang Liu, Weimin Long, Ping Wei, Mingfang Wu, Lei Zhang
  • HIGH-EFFICIENT ENERGY-SAVING AND SURFACING LAYER WELL-FORMING SELF-SHIELDED FLUX-CORED WELDING WIRE AND MANUFACTURE METHOD
    Publication number: 20190168345
    Abstract: It discloses a high-efficient energy-saving and surfacing layer well-forming self-shielded flux-cored welding wire. A low-carbon steel strip is used as an outer cover, and a flux core comprises the following components in percentage by mass: 42-60% high carbon ferrochrome with a particle size of 80 meshes, 10-18% ferrosilicon, 16-25% ferroboron, 2-8% rare earth silicon, 2-8% graphite, 1-4% aluminum magnesium alloy, 2-5% manganese powder and the balance of iron powder, wherein the graphite, the aluminum magnesium alloy and the manganese powder are all added with two particle sizes including 60 meshes and 200 meshes, and the weight of the flux core powder accounts for 49-53% of the total weight of the welding wire.
    Type: Application
    Filed: May 12, 2017
    Publication date: June 6, 2019
    Inventors: Dashuang LIU, Ping WEI, Mingfang WU