Patents by Inventor Changgeng Huang

Changgeng Huang 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).

  • Device and method for continuously performing grain boundary diffusion and heat treatment
    Patent number: 11636976
    Abstract: Disclosed are a device and method for continuously performing grain boundary diffusion and heat treatment, characterized in that the alloy workpiece or the metal workpiece are arranged in a relatively independent processing box together with a diffusion source; the device comprises, in successive arrangement, a grain boundary diffusion chamber, a first cooling chamber, a heat treatment chamber, and a second cooling chamber, and a transfer system provided between various chambers for delivering the processing box; each of the first cooling chamber and the second cooling chamber uses an air cooling system, and the cooling air temperature of the first cooling chamber is above 25° C. and at least differs by 550° C. from the grain boundary diffusion temperature of the grain boundary diffusion chamber; the cooling air temperature of the second cooling chamber is above 25° C. and at least differs by 300° C.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: April 25, 2023
    Assignee: Fujian Changting Golden Dragon Rare-Earth Co., Ltd
    Inventors: Qingjiang Wang, Zongbo Liao, Yulin Lin, Changgeng Huang
  • DEVICE AND METHOD FOR CONTINUOUSLY PERFORMING GRAIN BOUNDARY DIFFUSION AND HEAT TREATMENT
    Publication number: 20210142944
    Abstract: Disclosed are a device and method for continuously performing grain boundary diffusion and heat treatment, characterized in that the alloy workpiece or the metal workpiece are arranged in a relatively independent processing box together with a diffusion source; the device comprises, in successive arrangement, a grain boundary diffusion chamber, a first cooling chamber, a heat treatment chamber, and a second cooling chamber, and a transfer system provided between various chambers for delivering the processing box; each of the first cooling chamber and the second cooling chamber uses an air cooling system, and the cooling air temperature of the first cooling chamber is above 25° C. and at least differs by 550° C. from the grain boundary diffusion temperature of the grain boundary diffusion chamber; the cooling air temperature of the second cooling chamber is above 25° C. and at least differs by 300° C.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 13, 2021
    Inventors: Qingjiang Wang, Zongbo Liao, Yulin Lin, Changgeng Huang