Patents by Inventor Chonghai XU

Chonghai XU 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).

  • Patent number: 12139440
    Abstract: The present invention provides a self-healing ceramic material with reduced porosity and a method for preparing the same. The self-healing ceramic material comprises the following components by volume: 60-85 parts by volume of Al2O3, 10-20 parts by volume of TiN, 10-20 parts by volume of TiSi2, 0.1-1 parts by volume of MgO, and 0.1-1 parts by volume of Y2O3. Wherein, Al2O3 serves as a matrix, TiN and TiSi2 act as repair agents, and MgO and Y2O3 function as sintering aids. The repair function is realized by adding TiN and TiSi2, which have repair capabilities, to the ceramic matrix, enabling the ceramic material to heal cracks. TiN plays the main role of repair function, and TiSi2 assists in the repair and helps reduce the formation of surface pores.
    Type: Grant
    Filed: June 13, 2024
    Date of Patent: November 12, 2024
    Assignee: QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES)
    Inventors: Zhaoqiang Chen, Yuxin Shi, Chonghai Xu, Hui Chen, Mingdong Yi, Guangchun Xiao, Jingjie Zhang, Wenjun Liu
  • Patent number: 12037293
    Abstract: A laminated cermet tool material with self generated micro texture on the surface and a preparation method thereof; first, the tungsten carbide titanium matrix powder is added with molybdenum cobalt nickel rare metal as the bonding phase to form the matrix, then 2.5D braided ceramic fiber preforms are placed on the upper and lower surfaces of the cermet matrix powder, and the laminated cermet tool material with self generated micro texture on the surface is obtained by spark plasma sintering, as the ceramic fiber braid is braided, it has a stable structure, realizing the formation of texture coating on the surface of the tool, and the laminated tool with the cermet as the middle layer.
    Type: Grant
    Filed: May 15, 2023
    Date of Patent: July 16, 2024
    Assignee: Qilu University of Technology
    Inventors: Mingdong Yi, Jianping Wang, Chonghai Xu, Zhaoqiang Chen, Guangchun Xiao
  • Publication number: 20240173887
    Abstract: An ultra-fast sintering method and a sintering system for preparing nano-ceramics by ultrasonic-assisted pressurization and high-frequency induction, it belongs to the technical field of nano-ceramics sintering; this method mainly aims at the problem that nano-ceramics are easy to grow during sintering, and develops an ultrasonic-assisted pressurized coupled high-frequency induction sintering system to prepare nano-ceramic materials; in the process of sintering, ultrasonic wave is used to form high frequency, alternating impact and cavitation on nano-ceramic particles, which can quickly exhaust the gas between particles and inhibit the agglomeration of nano-ceramic particles; on the other hand, the rapid sintering of nano-ceramics is realized by using the principle of high-frequency induction to instantaneously heat the graphite mold and generate a lot of heat.
    Type: Application
    Filed: July 18, 2023
    Publication date: May 30, 2024
    Applicant: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Mingdong Yi, Gang Xue, Wenjie Liu, Kaining Liu, Wen Zhang, Yuchen Xu, Chenyang Yi, Chonghai Xu
  • Publication number: 20230416161
    Abstract: A laminated cermet tool material with self generated micro texture on the surface and a preparation method thereof; first, the tungsten carbide titanium matrix powder is added with molybdenum cobalt nickel rare metal as the bonding phase to form the matrix, then 2.5D braided ceramic fiber preforms are placed on the upper and lower surfaces of the cermet matrix powder, and the laminated cermet tool material with self generated micro texture on the surface is obtained by spark plasma sintering, as the ceramic fiber braid is braided, it has a stable structure, realizing the formation of texture coating on the surface of the tool, and the laminated tool with the cermet as the middle layer.
    Type: Application
    Filed: May 15, 2023
    Publication date: December 28, 2023
    Inventors: Mingdong Yi, Jianping Wang, Chonghai Xu, Zhaoqiang Chen, Guangchun Xiao
  • Publication number: 20230340225
    Abstract: A method for manufacturing a flexible sensor, including: dispersing graphene in a polymeric material; adding a carbon nanotube into the polymeric material; applying an alternating electric field to the polymeric material added with the carbon nanotube to obtain a composite material; attaching a polymeric material film to the obtained composite material; pre-embedding carbon fibers; and heating and curing to obtain a sensor. A CNT bridging effect and an electric field induced arrangement are introduced at an appropriate ratio of polymeric materials such as graphene-PDMS or PMMA to improve a dry-blended method. The flexible sensor manufactured by the improved dry-blended method improves electrical conductivity, a piezoresistive property and a mechanical property of CNT-graphene-PDMS or PMMA and other polymeric materials.
    Type: Application
    Filed: July 3, 2023
    Publication date: October 26, 2023
    Applicant: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Li WANG, Jun CHEN, Weiguang SU, Chonghai XU, Wenhong ZHANG, Junlei HAN, Xingyuan XU
  • Patent number: 11365775
    Abstract: The present invention relates to a commercial vehicle disc brake caliper assembly comprising a caliper body and a left guide pin component, right guide pin component, the main adjuster mechanism assembly, the driven adjuster unit are all mounted on the caliper body. The adjuster mechanism assembly adopts a gear clutch structure with anti-overload function; the driven adjuster unit adopts a circlip structure; the main adjuster assembly and the driven adjuster unit is connected by sprocket chain. The bottom of the main adjuster assembly and the bottom of the driven adjuster unit are connected to the three thread calibration bolt, which connected with bridage, the bridage are arranged inside of the brake caliper. The invention overcomes the problems which may occur during braking, such as uneven braking force, failure of clearance adjustment, deformation of adjuster mechanism, failure of braking, etc.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: June 21, 2022
    Assignee: SHANDONG TOGET BRAKE SYSTEM CO., LTD
    Inventors: Zhongguo Zhang, Zhijun Peng, Chonghai Xu, Chuanliang Yang, Dameng Hu, Bin Shi
  • Patent number: 11319251
    Abstract: The invention relates to nickel-coated hexagonal boron nitride nanosheet composite powder, its preparation and high-performance composite ceramic cutting tool material. The composite powder has a core-shell structure with BNNS as the core and Ni as the shell. The self-lubricating ceramic cutting tool material is prepared by wet ball milling mixing and vacuum hot-pressing sintering with a phase alumina as the matrix, tungsten-titanium carbide as the reinforcing phase, nickel-coated hexagonal boron nitride nanosheet composite powder as the solid lubricant and magnesium oxide and yttrium oxide as the sintering aids. The invention also provides preparation methods of the nickel-coated hexagonal boron nitride nanosheet composite powder and the self-lubricating ceramic cutting tool material.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: May 3, 2022
    Assignee: QILU UNIVERSITY OF TECHNOLOGY
    Inventors: Chonghai Xu, Guangyong Wu, Guangchun Xiao, Mingdong Yi, Zhaoqiang Chen, Jingjie Zhang
  • Publication number: 20210324929
    Abstract: The present invention relates to a commercial vehicle disc brake caliper assembly comprising a caliper body and a left guide pin component, right guide pin component, the main adjuster mechanism assembly, the driven adjuster unit are all mounted on the caliper body. The adjuster mechanism assembly adopts a gear cluth structure with anti-overload function; the driven adjuster unit adopts a circlip structure; the main adjuster assembly and the driven adjuster unit is connected by sprocket chain. The bottom of the main adjuster assembly and the bottom of the driven adjuster unit are connected to the three thread calibration bolt, which connected with bridage, the bridage are arranged inside of the brake caliper. The invention overcomes the problems which may occur during brakeing, such as uneven braking force, failure of clearance adjustment, deformation of adjuster mechanism, failure of braking, etc.
    Type: Application
    Filed: May 4, 2018
    Publication date: October 21, 2021
    Inventors: Zhongguo ZHANG, Zhijun PENG, Chonghai XU, Chuanliang YANG, Dameng HU, Bin SHI
  • Publication number: 20210214280
    Abstract: The invention relates to nickel-coated hexagonal boron nitride nanosheet composite powder, its preparation and high-performance composite ceramic cutting tool material. The composite powder has a core-shell structure with BNNS as the core and Ni as the shell. The self-lubricating ceramic cutting tool material is prepared by wet ball milling mixing and vacuum hot-pressing sintering with a phase alumina as the matrix, tungsten-titanium carbide as the reinforcing phase, nickel-coated hexagonal boron nitride nanosheet composite powder as the solid lubricant and magnesium oxide and yttrium oxide as the sintering aids. The invention also provides preparation methods of the nickel-coated hexagonal boron nitride nanosheet composite powder and the self-lubricating ceramic cutting tool material.
    Type: Application
    Filed: November 8, 2019
    Publication date: July 15, 2021
    Inventors: Chonghai XU, Guangyong WU, Guangchun XIAO, Mingdong YI, Zhaoqiang CHEN, Jingjie ZHANG