Patents Assigned to YANSHAN UNIVERSITY
  • Patent number: 12290851
    Abstract: An electrically assisted forming process and device for a high-strength metal alloy thin-walled pipe includes a die sleeve, wiring terminals, a pulse power supply, a die seat, sealing baffle plates, a drawing die, and a cooling water circulation chamber. A process for forming a high-strength metal alloy thin-walled pipe includes first, graphite or fusible metal, i.e., an aluminum rod, is introduced into a high-strength metal alloy pipe to be drawn to fill the whole pipe; and then, pulse current is introduced into a plastic deformation area of the thin-walled pipe. A cooling device can be provided to achieve a good cooling effect. The thin-walled pipe with corresponding length is cut according to a production requirement after processing is completed, and annealing treatment is performed in a vacuum heat treatment furnace.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: May 6, 2025
    Assignees: CENTRAL IRON AND STEEL RESEARCH INSTITUTE, YANSHAN UNIVERSITY
    Inventors: Yong Li, Zhiqing Lyu, Bo Zhao, Chunxu Wang, Shun Han, Le Zhan, Jianxiong Liang, Zhenbao Liu, Changjun Wang
  • Publication number: 20250128563
    Abstract: A wheel action-based active suspension damping adjustment apparatus recognizes wheel actions through a steering apparatus, distance measuring apparatuses and force sensors and calculates an action damping magnitude according to damping parameters determined by different wheel actions, thereby achieving optimal adjustment under different actions. The changes in an inclination angle of a vehicle cabin floor and a vertical acceleration are monitored by using an inclination angle sensor and acceleration sensors, and meanwhile, an inclination angle damping and an acceleration damping are determined according to exceeding amplitudes, and a total damping of active suspensions is fed back and corrected, thereby further enhancing an adjustment and control effect of the active suspensions.
    Type: Application
    Filed: December 25, 2024
    Publication date: April 24, 2025
    Applicant: YANSHAN UNIVERSITY
    Inventors: Dingxuan ZHAO, Haiwu ZHENG, Hao XIONG, Ziqi HUANG, Zhuangding ZHOU, Zeping LI
  • Patent number: 12280628
    Abstract: A wheel action-based active suspension damping adjustment apparatus recognizes wheel actions through a steering apparatus, distance measuring apparatuses and force sensors and calculates an action damping magnitude according to damping parameters determined by different wheel actions, thereby achieving optimal adjustment under different actions. The changes in an inclination angle of a vehicle cabin floor and a vertical acceleration are monitored by using an inclination angle sensor and acceleration sensors, and meanwhile, an inclination angle damping and an acceleration damping are determined according to exceeding amplitudes, and a total damping of active suspensions is fed back and corrected, thereby further enhancing an adjustment and control effect of the active suspensions.
    Type: Grant
    Filed: December 25, 2024
    Date of Patent: April 22, 2025
    Assignee: YANSHAN UNIVERSITY
    Inventors: Dingxuan Zhao, Haiwu Zheng, Hao Xiong, Ziqi Huang, Zhuangding Zhou, Zeping Li
  • Patent number: 12221384
    Abstract: A crack self-healing functionally gradient material for ceramic cutting tools and a preparation method thereof. The material for ceramic cutting tools has a symmetrical gradient structure, and based on the percentage by mass, components of each layer include 50%-80% of Ti(C7,N3), 25%-5% of (W7,Ti3)C and 20%-0% of TiSi2; contents of components of layers that are symmetrical relative to a central layer are the same and a thickness is symmetrically distributed; a content of Ti(C7,N3) gradually increases from the surface layer to the central layer, contents of (W7,Ti3)C and TiSi2 gradually decrease by 5% from the surface layer to the central layer, and the contents of Ni and Mo gradually increase from the surface layer to the central layer.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: February 11, 2025
    Assignees: SHANDONG UNIVERSITY, YANSHAN UNIVERSITY
    Inventors: Chuanzhen Huang, Xinyao Cui, Hanlian Liu, Zhenyu Shi, Peng Yao, Xiaolan Bai, Zhen Wang, Longhua Xu, Dun Liu, Shuiquan Huang, Hongtao Zhu, Bin Zou
  • Publication number: 20250025608
    Abstract: The present invention belongs to the technical field of mechanical manufacturing and medical device surface processing, and specifically discloses a metal with a microporous surface structure, a preparation method therefor, and an application thereof. According to the present invention, a metal is sequentially sanded and polished, and then subjected to ultrasonic cavitation, wherein conditions for the ultrasonic cavitation are as follows: the ultrasonic cavitation is performed for 1-240 min, an amplitude of ultrasonic equipment is 1-100 ?m, an output power of the ultrasonic equipment is 5-200 W, and an ultrasonic frequency is 15000-55000 Hz; and the metal with a microporous surface structure is obtained. The method disclosed by the present invention has the advantages of low cost, simple operation, and no pollution to the surface, can solve the preparation of micropores on small and micro surfaces, and has potential wide application prospects in medical biology and other related fields.
    Type: Application
    Filed: April 4, 2023
    Publication date: January 23, 2025
    Applicant: YANSHAN UNIVERSITY
    Inventors: Hongwang ZHANG, Xin WANG, Zhaoji WANG
  • Publication number: 20250002660
    Abstract: A method for prepring a porous aerogel scaffold includes: adding a photoinitiator and polyethylene glycol diacrylate in a buffer solution, dissolving by heating and evenly mixing, adding Pluronic F127 into the mixed solution, and standing at a low temperature to obtain an aerogel scaffold material; printing a hydrogel scaffold by using a 3D printing technology, and performing UV irradiation so that a cross-linking of the hydrogel scaffold is caused to form a three-dimensional scaffold with a stable structure, performing low-temperature soaking to remove Pluronic F127, and then freeze drying the three-dimensional scaffold to obtain the porous aerogel scaffold. Wherein, Pluronic F127 serves as a sacrificial material which is removed after the 3D printing of the hydrogel scaffold is completed, and then a porous structure can be formed in the scaffold in combination with a freeze drying technology, which facilitates the survival, growth and proliferation of cells during the three-dimensional culture.
    Type: Application
    Filed: January 11, 2022
    Publication date: January 2, 2025
    Applicants: SHANDONG UNIVERSITY, YANSHAN UNIVERSITY
    Inventors: Chuanzhen HUANG, Zhichao WANG, Hanlian LIU, Peng YAO, Wei WANG, Zhen WANG, Longhua XU, Shuiquan HUANG, Jun WANG, Hongtao ZHU, Bin ZOU
  • Patent number: 12145889
    Abstract: The present invention relates to the field of new materials technology, in particular to carbon nitride composite ceramic tool materials, preparation method and cutting tools thereof. The raw materials comprise carbon nitride, titanium carbonitride, molybdenum, nickel and cobalt, carbon nitride as the matrix phase, titanium carbonitride as the reinforcing phase are added to the carbon nitride based composite ceramic materials, with molybdenum, nickel and cobalt as a suitable sintering aid, dense composite tool material is obtained with vacuum hot press sintering method. The prepared carbon nitride based composite ceramic tool materials boast the advantages of low cost, high hardness, high bending strength and high fracture toughness, which is an important way to promote the innovation, development and popularization of carbon nitride materials.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: November 19, 2024
    Assignees: SHANDONG UNIVERSITY, YANSHAN UNIVERSITY
    Inventors: Chuanzhen Huang, Yan Zhang, Hanlian Liu, Zhenyu Shi, Peng Yao, Zhen Wang, Longhua Xu, Shuiquan Huang, Jun Wang, Hongtao Zhu, Bin Zou
  • Patent number: 12115653
    Abstract: A soft joint gripper based on 4D printing comprises a palm body and five soft finger units connected with the palm body; each soft finger unit is provided with two soft finger joints and two finger bones; the finger bones are made of 3D printing resin; the soft finger joints are two symmetrical double-layer thin-film soft finger joint actuators; the double-layer thin-film soft finger joint actuator is made of a 4D printing liquid crystal elastomer and a polyimide electrothermal film, and the bending angle of each double-layer thin-film soft finger joint actuator is changed by energization or heating stimulation; and the double-layer film soft finger joint actuator is used to control the soft finger unit to perform reversible bending motion. Accurate control of the soft joint gripper can be realized.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: October 15, 2024
    Assignee: YANSHAN UNIVERSITY
    Inventors: Yuyan Zhang, Shiying Kou, Xiaoyuan Luo, Yintang Wen, Bo Liang
  • Publication number: 20240302352
    Abstract: A method of rapid constructing human cerebral cortical organoids by 3D bioprinting and an application including preparing microfluidic chips, preparation of hydrogel of human cerebral cortical organoids, and printing of human cerebral cortical organoids. The microfluidic chip comprises a mixed-flow channel layer, liquid pool layer, microporous array layer, human cerebral cortical organoid culture layer, and culture medium recovery layer; the human cerebral cortical organoid hydrogel has gelatin, alginate, and hyaluronic acid; printing directly human cerebral cortical organoids in microfluidic chips by FRESH printing method, obtaining human cerebral cortical organoid chips after packaging. The application directly constructs large-scale human cerebral cortex-like with three layers of mutually connected structures in situ in organ chip through 3D bioprinting, simulates cerebrospinal fluid circulation through perfusion culture.
    Type: Application
    Filed: March 10, 2023
    Publication date: September 12, 2024
    Applicants: SHANDONG UNIVERSITY, YANSHAN UNIVERSITY
    Inventors: Chuanzhen HUANG, Zhuang CHEN, Hanlian LIU, Peng YAO, Dun LIU, Hongtao ZHU, Bin ZOU, Zhen WANG, Jun WANG, Longhua XU, Shuiquan HUANG, Meina QU, Zhengkai XU, Minting WANG, Yabin GUAN
  • Patent number: 12084737
    Abstract: A gradient-structured ultra-fine bainitic low-alloy rail steel and a preparation method thereof are provided in the present application, belonging to the technical field of steel metallurgy. The rail steel to be treated is subjected to three thermal processing treatments so that the gradient-structured ultra-fine bainitic rail steel has a gradient structure consisting of a ferrite-pearlite dual phase microstructure and an ultra-fine bainite microstructure. The gradient structure of the present application enables the matrix of the rail to be a ferrite-pearlite composite phase structure, and only the surface layer of the service surface to be ultrafine bainite.
    Type: Grant
    Filed: September 20, 2023
    Date of Patent: September 10, 2024
    Assignee: YANSHAN UNIVERSITY
    Inventors: Zhinan Yang, Fucheng Zhang, Jianjun Wang, Hongguang Li, Zhuanqin Liang, Qingchao Wang, Changbo Liu, Dongyun Sun, Xinliang Gao, Chen Chen
  • Publication number: 20240227235
    Abstract: A method for preparing a shell-bionic ceramic tool and a shell-bionic ceramic tool, wherein the shell-bionic ceramic tool includes alternating stacks of ceramic powders with different components, pressing a ceramic green body using a cold briquetting method, carrying out pre-pressing once using a graphite indenter on a working surface thereof after each layer of the ceramic powder being loaded, and pressing a last layer using a graphite rod, and then pressing a whole ceramic green body with a certain pressure to promote a bonding of the layers of ceramic powder, which in turn gives a complex shape to an interface between the layers, increases a bonding area between the layers, and plays the role of hindering crack expansion, extending the crack expansion path, and improving the bonding strength of the interface; after then, hot-pressed sintering is used to densify the ceramic green body to obtain the shell-bionic ceramic tool.
    Type: Application
    Filed: February 14, 2023
    Publication date: July 11, 2024
    Applicants: SHANDONG UNIVERSITY, YANSHAN UNIVERSITY
    Inventors: Chuanzhen HUANG, Yunpeng Feng, Hanlian Liu, Zhenyu Shi, Peng Yao, Dun Liu, Bin Zou, Hongtao Zhu, Zhen Wang, Jun Wang, Longhua Xu, Shuiquan Huang, Meina Qu, Zhengkai Xu, Minting Wang, Yabin Guan
  • Publication number: 20240216581
    Abstract: A photocurable composite hydrogel matrix precursor, a preparation method thereof and a scaffold with same. The photocurable composite hydrogel matrix precursor includes gelatin methacrylate, sodium alginate, sodium carboxymethyl cellulose and chondroitin sulfate, where the mass ratio of a photoinitiator to the gelatin methacrylate to the sodium alginate to the sodium carboxymethyl cellulose to the chondroitin sulfate is (0.2-0.3):(8-10):(1-3):(0.6-0.8):(0.05-0.07).
    Type: Application
    Filed: September 17, 2021
    Publication date: July 4, 2024
    Applicants: SHANDONG UNIVERSITY, YANSHAN UNIVERSITY
    Inventors: Chuanzhen HUANG, Xu HAN, Hanlian LIU, Peng YAO, Hongtao ZHU, Bin ZOU, Jun WANG
  • Patent number: 12024432
    Abstract: The application provides a porous carbon block material having high elasticity and high sealing, and provides a method for preparing the same. Particularly, the present application provides a porous carbon block material, wherein the porous carbon block material has a pore size in the range of from 3 nm to 100 nm, a porosity of from 50% to 87%, and the pores in the material are closed pores. In addition, the application provides a method for preparing the porous carbon block material according to the present application. The porous carbon block material according to the present application has small pore size, high porosity, and closed pores, and thus has high strength combined with high elasticity, high sealing property, and low density. Hence, the porous carbon block material according to the present application may be used as a sealing material.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: July 2, 2024
    Assignee: YANSHAN UNIVERSITY
    Inventors: Zhisheng Zhao, Yingju Wu, Zitai Liang, Yang Zhang, Xiaoyu Wang, Zewen Zhuge, Julong He, Dongli Yu, Bo Xu, Yongjun Tian
  • Publication number: 20240199437
    Abstract: A copper oxide with a hollow porous structure, a preparation method therefor, and a use thereof are provided. The copper oxide with a hollow porous structure is of a hollow octahedral structure, and has a size of 200-400 nm and a specific surface area of 23.5-79.6 m2/g, where the surface of the octahedron is composed of copper oxide nanoparticles having a size of 14-33 nm, and pore structures are formed among the copper oxide nanoparticles. The copper oxide with the hollow porous structure has good conductivity, high hydrophilicity and good catalytic performance, can substantially reduce the detection potential and greatly improve the detection sensitivity and the anti-interference performance when used for the electrochemical detection of pesticides.
    Type: Application
    Filed: September 28, 2022
    Publication date: June 20, 2024
    Applicant: YANSHAN UNIVERSITY
    Inventors: Faming GAO, Yisong ZHAO, Kuo WEI, Xue ZUO, Yuping MI
  • Patent number: 11969891
    Abstract: The present disclosure relates to a 4D printed gripper with flexible finger joints and a trajectory tracking control method thereof. The 4D printed gripper with flexible finger joints includes: a palm unit and five finger units connected to the palm unit, where each finger unit includes two flexible finger joints and two phalanges; each flexible finger joint is divided into one upper layer and one lower layer of liquid crystal elastomer (LCE), and each LCE is used to implement a bidirectional bending movement of the finger unit. The present disclosure can precisely control the gripper with flexible finger joints.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: April 30, 2024
    Assignee: YANSHAN UNIVERSITY
    Inventors: Yintang Wen, Haiying Yao, Xiaoyuan Luo, Yuyan Zhang, Xi Liang, Bo Liang
  • Publication number: 20240134114
    Abstract: A dispersion-compensation microstructure fiber uses pure silica glass as the background material. It includes the core, the first-type defects, the second-type defects and the cladding. The air holes in the fiber cross section are arranged in the equilateral triangle lattice with the same adjacent air-hole to air-hole spacing. The core is formed by omitting 1 air hole. The first-type defects are formed by the 6 air holes locating at the vertices of hexagonal third-layer porous structure surrounding the core and their surrounding background material. The second-type defects are formed by the air holes in the first air-hole layer surrounding each first-type defect and their surrounding background material. The second-type defects act as the porous structure to surround the first-type defects and the fundamental defect modes, and can also combine with the first-type defects to act as the core of the second-order defect modes.
    Type: Application
    Filed: December 22, 2023
    Publication date: April 25, 2024
    Applicant: YANSHAN UNIVERSITY
    Inventors: Wei WANG, Chang ZHAO, Xiaochen KANG, Hongda YANG, Wenchao LI, Zheng LI, Lin SHI
  • Publication number: 20240131746
    Abstract: A method for preparing a shell-bionic ceramic tool and a shell-bionic ceramic tool, wherein the shell-bionic ceramic tool includes alternating stacks of ceramic powders with different components, pressing a ceramic green body using a cold briquetting method, carrying out pre-pressing once using a graphite indenter on a working surface thereof after each layer of the ceramic powder being loaded, and pressing a last layer using a graphite rod, and then pressing a whole ceramic green body with a certain pressure to promote a bonding of the layers of ceramic powder, which in turn gives a complex shape to an interface between the layers, increases a bonding area between the layers, and plays the role of hindering crack expansion, extending the crack expansion path, and improving the bonding strength of the interface; after then, hot-pressed sintering is used to densify the ceramic green body to obtain the shell-bionic ceramic tool.
    Type: Application
    Filed: February 14, 2023
    Publication date: April 25, 2024
    Applicants: SHANDONG UNIVERSITY, YANSHAN UNIVERSITY
    Inventors: Chuanzhen HUANG, Yunpeng Feng, Hanlian Liu, Zhenyu Shi, Peng Yao, Dun Liu, Bin Zou, Hongtao Zhu, Zhen Wang, Jun Wang, Longhua Xu, Shuiquan Huang, Meina Qu, Zhengkai Xu, Minting Wang, Yabin Guan
  • Publication number: 20240108784
    Abstract: A hydrogel for cell-laden bioprinting, bioink, and a preparation method and an application thereof, relates to the technical field of biomedical polymer hydrogels. The hydrogel for cell-laden bioprinting is polymer gel formed by adding a cell-specific material into a matrix of alginate and gelatin and crosslinking and curing, wherein the cell-specific material is polypeptide selected according to different laden cells. The structures printed using the hydrogel may have the advantages such as adjustable mechanical properties, adjustable porosity, high biocompatibility, high printing accuracy, and high customizability, which may widely support the printing of human tissues and organs such as spinal cord, cartilage, and heart, and has good prospects for applications in tissue repair, organ transplantation and so on.
    Type: Application
    Filed: December 15, 2022
    Publication date: April 4, 2024
    Applicants: SHANDONG UNIVERSITY, YANSHAN UNIVERSITY
    Inventors: Chuanzhen HUANG, Zhuang CHEN, Hanlian LIU, Peng YAO, Zhenyu SHI, Dun LIU, Hongtao ZHU, Bin ZOU, Zhen WANG, Minting WANG, Longhua XU, Shuiquan HUANG, Meina QU, Zhengkai XU, Yabin GUAN
  • Patent number: 11945271
    Abstract: A rigid-flexible coupling multi-degree-of-freedom walking position-adjusting leg unit and a hybrid robot platform thereof is provided and includes a vertical rigid-flexible coupling multi-degree-of-freedom walking position-adjusting leg unit and a horizontal rigid-flexible coupling multi-degree-of-freedom walking position-adjusting leg unit, which both include a moving device, a moving drive, a steering frame, a lifting frame, a spring device and a driving differential wheel set, in combination with a frame, a driver set, a battery pack and a control box, forming a multi-degree-of-freedom parallel mechanism platform. The hybrid robot platform including the rigid-flexible coupling multi-degree-of-freedom walking position-adjusting leg unit as provided by the present disclosure has functions of a rigid position adjustment, an elastic suspension and a rigid-flexible coupling position adjustment, and can automatically adapt to a working condition of the uneven ground.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: April 2, 2024
    Assignee: YANSHAN UNIVERSITY
    Inventors: Yulin Zhou, Shuyang Shi, Lihui Zhao, Xuesong Qiu, Zongqiang Feng, Yi Liu
  • Patent number: 11937934
    Abstract: This disclosure provides an EEG decoding method based on a non-negative CP decomposition model. The method extracts time component characteristics of the EEG of the different subjects in the boundary avoidance task, optimizes a characteristic dimension by using a 2-DPCA, and takes classification by using a support vector machine, so that differences of the EEG of subjects in different states can be reflected, and the EEG classification of the single subject has a great accuracy. The time component characteristics of the EEG can be obtained by using the channel components and the frequency components based on the non-negative CP decomposition model and by means of the interaction between the EEG modes. The characteristics of the obtained EEG time components have good separability, and the dimensions of the characteristics are optimized, so that the EEG of left and right hand movements in the boundary avoidance tasks can be effectively decoded.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: March 26, 2024
    Assignee: YANSHAN UNIVERSITY
    Inventors: Rongrong Fu, Yaodong Wang, Shiwei Wang, Bao Yu