Patents by Inventor Junkai NIU

Junkai NIU 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).

  • Additive raw material composition and additive for superhard material product, preparation method of the additive, composite binding agent and superhard material product, self-sharpening diamond grinding wheel and preparation method of the same
    Patent number: 11179828
    Abstract: Disclosed are an additive raw material composition and an additive for superhard material product, a composite binding agent, a superhard material product, a self-sharpening diamond grinding wheel and a method for manufacturing the same. The raw material composition consisting of components in following mass percentage: Bi2O3 25%˜40%, B2O3 25%˜40%, ZnO 5%˜25%, SiO2 2%˜10%, Al2O3 2%˜10%, Na2CO3 1%˜5%, Li2CO3 1%˜5%, MgCO3 0%˜5%, and CaF2 1%˜5%. The composite binding agent is prepared from the additive and a metal composite binding agent. The self-sharpening diamond grinding wheel prepared from the composite binding agent has high self-sharpness, high strength, and fine texture, is uniformly consumed during the grinding process, does not need to be trimmed during the process of being used, and maintains good grinding force all the time, fundamentally solving the problems of long trimming time and high trimming cost of the diamond grinding wheel (FIG. 1).
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: November 23, 2021
    Assignee: ZHENGZHOU RESEARCH INSTITUTE FOR ABRASIVES & GRIND
    Inventors: Ning Yan, Xin Han, Junkai Niu, Bo Xing
  • Additive Raw Material Composition and Additive for Superhard Material Product, Preparation Method of the Additive, Composite Binding Agent and Superhard Material Product, Self-Sharpening Diamond Grinding Wheel and Preparation Method of the Same
    Publication number: 20190344401
    Abstract: Disclosed are an additive raw material composition and an additive for superhard material product, a composite binding agent, a superhard material product, a self-sharpening diamond grinding wheel and a method for manufacturing the same. The raw material composition consisting of components in following mass percentage: Bi2O3 25%˜40%, B2O3 25%˜40%, ZnO 5%˜25%, SiO2 2%˜10%, Al2O3 2%˜10%, Na2CO3 1%˜5%, Li2CO3 1%-5%, MgCO3 0%˜5%, and CaF2 1%˜5%. The composite binding agent is prepared from the additive and a metal composite binding agent. The self-sharpening diamond grinding wheel prepared from the composite binding agent has high self-sharpness, high strength, and fine texture, is uniformly consumed during the grinding process, does not need to be trimmed during the process of being used, and maintains good grinding force all the time, fundamentally solving the problems of long trimming time and high trimming cost of the diamond grinding wheel (FIG. 1).
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Inventors: Ning Yan, Xin Han, Junkai Niu, Bo Xing
  • Additive composition and composition binding agent for superhard material and preparation thereof, and self-sharpening diamond grinding wheel and preparation thereof
    Patent number: 10391612
    Abstract: Disclosed are an additive raw material composition and an additive for superhard material product, a method for preparing the additive, a composite binding agent, a superhard material product, a self-sharpening diamond grinding wheel and a method for manufacturing the same. The raw material composition consisting of components in following mass percentage: Bi2O3 25%˜40%, B2O3 25%˜40%, ZnO 5%˜25%, SiO2 2%˜10%, Al2O3 2%˜10%, Na2CO3 1%˜5%, Li2CO3 1%˜5%, MgCO3 0%˜5%, and CaF2 1%˜5%. The composite binding agent is prepared from the additive and a metal composite binding agent. The self-sharpening diamond grinding wheel prepared from the composite binding agent has high self-sharpness, high strength, and fine texture, is uniformly consumed during the grinding process, does not need to be trimmed during the process of being used, and maintains good grinding force all the time, fundamentally solving the problems of long trimming time and high trimming cost of the diamond grinding wheel.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: August 27, 2019
    Assignee: ZHENGZHOU RESEARCH INSTITUTE FOR ABRASIVES & GRIND
    Inventors: Ning Yan, Xin Han, Junkai Niu, Bo Xing
  • Additive Composition And Composition Binding Agent For Superhard Material And Preparation Thereof, And Self-Sharpening Diamond Grinding Wheel And Preparation Thereof
    Publication number: 20180185984
    Abstract: Disclosed are an additive raw material composition and an additive for superhard material product, a method for preparing the additive, a composite binding agent, a superhard material product, a self-sharpening diamond grinding wheel and a method for manufacturing the same. The raw material composition consisting of components in following mass percentage: Bi2O3 25%˜40%, B2O3 25%˜40%, ZnO 5%˜25%, SiO2 2%˜10%, Al2O3 2%˜10%, Na2CO3 1%˜5%, Li2CO3 1%˜5%, MgCO3 0%˜5%, and CaF2 1%˜5%. The composite binding agent is prepared from the additive and a metal composite binding agent. The self-sharpening diamond grinding wheel prepared from the composite binding agent has high self-sharpness, high strength, and fine texture, is uniformly consumed during the grinding process, does not need to be trimmed during the process of being used, and maintains good grinding force all the time, fundamentally solving the problems of long trimming time and high trimming cost of the diamond grinding wheel.
    Type: Application
    Filed: April 27, 2017
    Publication date: July 5, 2018
    Inventors: Ning YAN, Xin HAN, Junkai NIU, Bo XING