Patents by Inventor Luchang CHE

Luchang CHE 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).

  • Publication number: 20220412901
    Abstract: A device for measuring short-wavelength characteristic X-ray diffraction based on array detection, and a measurement and analysis method based on the device are provided. An array detector of the device only detects and receives a diffraction ray which is diffracted by a material of a to-be-measured part inside a sample and passes through a through hole of a receiving collimator, and rays passing through a positioning hole. The to-be-measured part inside the sample is placed at the center of the diffractometer circle of the device. The method is performed with the device. With the present disclosure, a diffraction pattern of a part inside the sample with a centimeter thickness, i.e. Debye rings, can be rapidly and non-destructively measured, thereby rapidly and non-destructively measuring and analyzing crystal structures, and its crystal structural change of the part inside the sample, such as phase, texture, and stress.
    Type: Application
    Filed: June 25, 2022
    Publication date: December 29, 2022
    Applicant: THE 59TH INSTITUTE OF CHINA ORDNANCE INDUSTRY
    Inventors: Lin ZHENG, Shitao DOU, Xin CHEN, Lunwu ZHANG, Jin ZHANG, Taibin WU, Luchang CHE, Chengzhang WANG, Kun ZHOU, Fangchao ZHAO, Changguang HE, Xianhe FENG
  • Patent number: 11519062
    Abstract: A gradient control method for a microstructure ultrafine crystallization of a deep cone copper shaped charge liner includes the steps of an extrusion forming, a recrystallization heat treatment, and a high-frequency percussion. A multi-pass extrusion is used in the extrusion forming, and in the high-frequency percussion step, a percussion speed is 30,000 to 40,000 times/min, a percussion force is 1600 N to 2000 N, and a number of percussion times is 1 to 3. The forming and surface quality control of the deep cone shaped charge liner are realized by the control technology of the present invention; the plasticity of the material is improved, and fine crystal structures are obtained; and an ultrafine grain gradient structure distributed along the thickness direction is formed in the inner surface of the shaped charge liner.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: December 6, 2022
    Assignee: No.59 Research Institute of China Ordnance Industry
    Inventors: Qiang Chen, Dayu Shu, Qiang Zhao, Zude Zhao, Luchang Che, Yang Wu, Chuankai Hu, Hui Li
  • Publication number: 20190316242
    Abstract: A gradient control method for a microstructure ultrafine crystallization of a deep cone copper shaped charge liner includes the steps of an extrusion forming, a recrystallization heat treatment, and a high-frequency percussion. A multi-pass extrusion is used in the extrusion forming, and in the high-frequency percussion step, a percussion speed is 30,000 to 40,000 times/min, a percussion force is 1600 N to 2000 N, and a number of percussion times is 1 to 3. The forming and surface quality control of the deep cone shaped charge liner are realized by the control technology of the present invention; the plasticity of the material is improved, and fine crystal structures are obtained; and an ultrafine grain gradient structure distributed along the thickness direction is formed in the inner surface of the shaped charge liner.
    Type: Application
    Filed: March 5, 2019
    Publication date: October 17, 2019
    Applicant: No.59 Research Institute of China Ordnance Industry
    Inventors: Qiang CHEN, Dayu SHU, Qiang ZHAO, Zude ZHAO, Luchang CHE, Yang WU, Chuankai HU, Hui LI