Patents by Inventor Weisong DONG

Weisong DONG 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).

  • Micron silver particle-reinforced 316L stainless steel matrix composite and preparation method thereof
    Patent number: 11946122
    Abstract: The present disclosure relates to a micron silver particle-reinforced 316L stainless steel matrix composite, including a 316L stainless steel matrix and silver particles uniformly distributed in the 316L stainless steel matrix. The silver particles have a weight 1% to 5% of the total weight of the composite; and the composite has a density of 7.9 g/cm3 to 8.2 g/cm3 and a relative density of more than 98%. The composite is prepared by the following method: mixing raw materials of a spherical silver powder and a spherical 316L stainless steel powder; subjecting a resulting mixture to mechanical ball milling to obtain a mixed powder; sieving the mixed powder and adding a resulting powder to a powder cylinder of an SLM forming machine; and charging an inert protective gas for printing to obtain the composite.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: April 2, 2024
    Assignee: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
    Inventors: Dongdong Gu, Kaijie Lin, Jingfeng Quan, Yamei Fang, Qing Ge, Jie Zhuang, Yang Liu, Weisong Dong, Pengjiang Shuai
  • MICRON SILVER PARTICLE-REINFORCED 316L STAINLESS STEEL MATRIX COMPOSITE AND PREPARATION METHOD THEREOF
    Publication number: 20220112584
    Abstract: The present disclosure relates to a micron silver particle-reinforced 316L stainless steel matrix composite, including a 316L stainless steel matrix and silver particles uniformly distributed in the 316L stainless steel matrix. The silver particles have a weight 1% to 5% of the total weight of the composite; and the composite has a density of 7.9 g/cm3 to 8.2 g/cm3 and a relative density of more than 98%. The composite is prepared by the following method: mixing raw materials of a spherical silver powder and a spherical 316L stainless steel powder; subjecting a resulting mixture to mechanical ball milling to obtain a mixed powder; sieving the mixed powder and adding a resulting powder to a powder cylinder of an SLM forming machine; and charging an inert protective gas for printing to obtain the composite.
    Type: Application
    Filed: July 23, 2020
    Publication date: April 14, 2022
    Inventors: Dongdong GU, Kaijie LIN, Jingfeng QUAN, Yamei FANG, Qing GE, Jie ZHUANG, Yang LIU, Weisong DONG, Pengjiang SHUAI