Patents by Inventor Xuezhong DAI

Xuezhong DAI 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).

  • Method for controlling amount of silicon added to ductile cast iron, method for casting ductile cast iron, and cast product
    Patent number: 11946120
    Abstract: The present disclosure provides a method for controlling an amount of silicon added to ductile cast iron, a method for casting ductile cast iron, and a cast product, which relate to the technical fields of metallurgical and cast iron alloys. The method for controlling an amount of silicon added to ductile cast iron includes smelting ductile cast iron using scrap steel as a raw material. After the scrap steel is melted into molten iron, a copper alloy is added so that the molten iron has a copper equivalent of 0.8% to 1.0%, wherein the copper equivalent is controlled by formula (II). Then, ferrosilicon is added so that the content of silicon added to the molten iron satisfies formula (I).
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: April 2, 2024
    Assignees: TIANRUN INDUSTRY TECHNOLOGY CO., LTD., SHANDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Jianchen Cong, Shibo Shao, Haiming Yu, Xuezhong Dai, Peixiang Ni, Meizhen Feng, Shijie Lv, Hongri Cong
  • METHOD FOR CONTROLLING AMOUNT OF SILICON ADDED TO DUCTILE CAST IRON, METHOD FOR CASTING DUCTILE CAST IRON, AND CAST PRODUCT
    Publication number: 20220325390
    Abstract: The present disclosure provides a method for controlling an amount of silicon added to ductile cast iron, a method for casting ductile cast iron, and a cast product, which relate to the technical fields of metallurgical and cast iron alloys. The method for controlling an amount of silicon added to ductile cast iron includes smelting ductile cast iron using scrap steel as a raw material. After the scrap steel is melted into molten iron, a copper alloy is added so that the molten iron has a copper equivalent of 0.8% to 1.0%, wherein the copper equivalent is controlled by formula (II). Then, ferrosilicon is added so that the content of silicon added to the molten iron satisfies formula (I).
    Type: Application
    Filed: August 28, 2020
    Publication date: October 13, 2022
    Applicants: TIANRUN INDUSTRY TECHNOLOGY CO., LTD., SHANDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Jianchen CONG, Shibo SHAO, Haiming YU, Xuezhong DAI, Peixiang NI, Meizhen FENG, Shijie LV, Hongri CONG