公开(公告)号：US20220118518A1

公开(公告)日：2022-04-21

申请号：US17401334

申请日：2021-08-13

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Bo Song ,  Junxiang Fan ,  Shuaishuai Wei ,  Yusheng SHI

IPC: B22F10/28 ,  B33Y80/00

Abstract: The disclosure belongs to a technical field related to metamaterials and discloses a multi-scale three-dimensional pentamode metamaterial and an additive manufacturing method thereof. The multi-scale three-dimensional pentamode metamaterial has a body centered cubic (BCC) structure and includes a plurality of rods and a plurality of node structures. Two ends of each of the rods are connected to the node structures. Each of the rods has a cylindrical shape and is provided with a biconical through hole. From one end of the rod towards the other end of the rod, a diameter of the biconical through hole gradually decreases and then gradually increases. A chamber is formed inside each of the node structures, the biconical through hole communicates with the chamber, and the chamber is filled with a lattice structure.

公开(公告)号：US20230415407A1

公开(公告)日：2023-12-28

申请号：US17882518

申请日：2022-08-05

Applicant: Huazhong University of Science and Technology

Inventor： Bin SU ,  Zhenhua WU ,  Congcan SHI ,  Yike LI ,  Chunze YAN ,  Yusheng SHI

IPC: B29C64/153 ,  B33Y10/00 ,  B33Y70/00

CPC classification number: B29C64/153 ,  B33Y10/00 ,  B33Y70/00 ,  B29K2101/12

Abstract: The present invention provides composites with controllable superhydrophilic and superhydrophobic performances, a 3D printing method and 3D printed parts. The composites with controllable superhydrophilic and superhydrophobic interface performances comprise hydrophobic powder and/or hydrophilic powder and jointing phase powder, wherein the jointing phase powder is thermoplastic polymers. The present invention can print the parts with a continuous wettability change from superhydrophilic to superhydrophobic performances by regulating the mass percentage of the hydrophobic powder, the hydrophilic powder and the jointing phase powder. Furthermore, the present invention can prepare the models with various shapes according to different application scenes, and regulate the interface wettability performances of the models.

公开(公告)号：US20200147900A1

公开(公告)日：2020-05-14

申请号：US16740511

申请日：2020-01-13

Applicant: Huazhong University of Science and Technology

Inventor： Chunze YAN ,  Wei ZHU ,  Yusheng SHI ,  Jie LIU

IPC: B29C67/04 ,  C08G18/48 ,  C08G18/76 ,  B33Y70/00 ,  C08G18/30 ,  C08L77/02 ,  B33Y80/00 ,  B29C64/153 ,  C08G18/66 ,  C08L75/08 ,  C08G18/24 ,  C08G18/32 ,  B29C70/12 ,  B29B11/16 ,  B29C51/02 ,  B29B11/14 ,  B33Y10/00

Abstract: A method for manufacturing a composite product, including: 1) preparing a composite powder including 10-50 v. % of a polymer adhesive and 50-90 v. % of a chopped fiber; 2) shaping the composite powder by using a selective laser sintering technology to yield a preform including pores; 3) preparing a liquid thermosetting resin precursor, immersing the preform into the liquid thermosetting resin precursor, allowing a liquid thermosetting resin of the liquid thermosetting resin precursor to infiltrate into the pores of the preform, and exposing the upper end of the preform out of the liquid surface of the liquid thermosetting resin precursor to discharge gas out of the pores of the preform; 4) collecting the preform from the liquid thermosetting resin precursor and curing the preform; and 5) polishing the preform obtained in 4) to yield a composite product.

公开(公告)号：US20200376708A1

公开(公告)日：2020-12-03

申请号：US16655215

申请日：2019-10-16

Applicant: Huazhong University of Science and Technology

Inventor： Yusheng SHI ,  Chunze YAN ,  Zhaoqing LI ,  Peng CHEN ,  Zhufeng LIU ,  Jiamin WU ,  Shifeng WEN ,  Chenhui LI ,  Lichao ZHANG

IPC: B28B1/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/153 ,  B29C64/35 ,  B29C64/232 ,  B29C64/236 ,  B29C64/245 ,  B29C64/25 ,  C23C16/24

Abstract: A selective laser sintering (SLS) device. The SLS device includes a laser forming unit, a support platform and a driving mechanism. The support platform is configured to support a plurality of raw materials for additive manufacturing of an object including a plurality of sections. The laser forming unit is disposed on the support platform and is configured to lay powders on a surface of each section of the object and sinter the powders. The driving mechanism is disposed under the laser forming unit and includes a vertical driving mechanism and a horizontal driving mechanism. The vertical driving mechanism is connected to the laser forming unit and configured to lift the laser forming unit layer by layer. The horizontal driving mechanism is configured to drive the laser forming unit to move in a horizontal direction with respect to the support platform.

公开(公告)号：US20200114583A1

公开(公告)日：2020-04-16

申请号：US16357791

申请日：2019-03-19

Applicant: Huazhong University of Science and Technology

Inventor： Shifeng WEN ,  Peng CHEN ,  Chunze YAN ,  Lei YANG ,  Zhaoqing LI ,  Hongzhi WU ,  Yusheng SHI

IPC: B29C64/393 ,  B29C64/153 ,  B29C64/245 ,  B33Y30/00 ,  B33Y50/02

Abstract: The present disclosure belongs to the technical field of advanced manufacturing auxiliary equipment, and discloses an independently temperature-controlled high-temperature selective laser sintering frame structure, comprising a galvanometric laser scanning system, a powder feeding chamber, a forming chamber and a heat-insulating composite plate, and targeted optimization design is performed on the respective functional components. According to the invention, the independently temperature-controlled frame structure can simultaneously ensure the uniformity of the powder preheating temperature field of the powder feeding chamber platform and the uniformity of the processing temperature field of the forming chamber platform, so that powder on the powder feeding chamber platform can reach the sinterable temperature before being conveyed, and conveyance of cold powder to the sintered melt is avoided, thereby reducing the possibility of warpage of the parts while reducing actual sintering delay time and improving actual sintering efficiency. The independently temperature-controlled frame structure of the present disclosure is particularly suitable for high-temperature laser sintering of high-performance polymers such as polyaryletherketones and aromatic polyamides at 400° C.

公开(公告)号：US20170267533A1

公开(公告)日：2017-09-21

申请号：US15614574

申请日：2017-06-05

Applicant: Huazhong University of Science and Technology

Inventor： Chunze YAN ,  Yusheng SHI ,  Wei ZHU

IPC: C01B31/04 ,  C23F4/04 ,  B33Y10/00

CPC classification number: C23F4/04 ,  B33Y10/00 ,  C01B32/184 ,  C01B32/186 ,  C01B32/194 ,  C01B2204/32 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16

Abstract: A method for preparing a three-dimensional porous graphene material, including: a) constructing a CAD model corresponding to a required three-dimensional porous structure, and designing an external shape and internal structure parameters of the model; b) based on the CAD model, preparing a three-dimensional porous metal structure using a metal powder as material; c) heating the three-dimensional porous metal structure and preparing a metal template of the required three-dimensional porous structure; d) placing the metal template in a tube furnace and heating the metal template to a temperature of between 800 and 1000° C.; standing for 0.5-1 hr, introducing a carbon source to the tube furnace for continued reaction, cooling resulting products to room temperature to yield a three-dimensional graphene grown on the metal template; and e) preparing a corrosive solution, and immersing the three-dimensional graphene in the corrosive solution.

公开(公告)号：US20230027566A1

公开(公告)日：2023-01-26

申请号：US17785914

申请日：2020-11-26

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Yusheng SHI ,  Rongzhen LIU ,  Gong CHEN ,  Yu YANG ,  Jie LIU ,  Shifeng WEN ,  Jiamin WU

IPC: B28B1/00 ,  B33Y10/00 ,  B33Y30/00

Abstract: The present invention belongs to the technical field related to additive manufacturing, and provides a multi-field composite-based additive manufacturing device and method. The device comprises a powder delivery adjustment module, a sound field control module, a microwave field/thermal field control module and a microprocessor. The powder delivery adjustment module, the sound field control module and the microwave field/thermal field control module are respectively connected to the microprocessor; the powder delivery adjustment module comprises a raw material dispersion chamber, and the raw material dispersion chamber is provided within a forming cavity formed by a housing; the sound field control module is also provided within the forming cavity and is located below the raw material dispersion chamber; the microwave field/thermal field control module comprises a plurality of microwave generators provided in the forming cavity, the plurality of microwave generators are respectively located at two sides of a forming area.

公开(公告)号：US20190330119A1

公开(公告)日：2019-10-31

申请号：US16503613

申请日：2019-07-04

Applicant: Huazhong University of Science and Technology

Inventor： Chunze YAN ,  Wei ZHU ,  Hua FU ,  Zhongfeng XU ,  Yusheng SHI ,  Chenhui LI ,  Jiamin WU ,  Shifeng WEN ,  Zhaoqing LI

IPC: C04B35/565 ,  C04B35/80 ,  C04B35/622

Abstract: A method of preparing a C/C-SiC composite part, including: preparing, using a solvent evaporation process, carbon fiber composite powders coated with a phenol resin; according to a three-dimensional model of a to-be-prepared part, forming a green part corresponding to the to-be-prepared part using the carbon fiber composite powders and a 3D printing technology; densifying the green part to yield a C/C porous body having a density of 0.7 to 1.1 g/cm3 and an open porosity of 30 to 50%; and siliconizing the C/C porous body under vacuum, removing excess silicon to yield a primary carbon fiber reinforced carbon-silicon carbide (C/C-SiC) body, densifying the primary C/C-SiC body, to obtain a final C/C-SiC composite part.

公开(公告)号：US20170266882A1

公开(公告)日：2017-09-21

申请号：US15615795

申请日：2017-06-06

Applicant: Huazhong University of Science and Technology

Inventor： Chunze YAN ,  Wei ZHU ,  Yusheng SHI ,  Jie LIU

IPC: B29C67/00 ,  B33Y10/00 ,  B29B11/14 ,  B29C67/04 ,  B29C51/02

CPC classification number: B29C67/04 ,  B29B11/00 ,  B29B11/14 ,  B29B11/16 ,  B29C51/02 ,  B29C64/153 ,  B29C67/00 ,  B29C70/12 ,  B29C2035/0838 ,  B29C2059/027 ,  B29K2101/10 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C08G18/244 ,  C08G18/302 ,  C08G18/3281 ,  C08G18/48 ,  C08G18/6688 ,  C08G18/7664 ,  C08L63/00 ,  C08L75/08 ,  C08L77/02 ,  C08K7/06 ,  C08K7/14 ,  C08K7/04 ,  C08L61/06

Abstract: A method for manufacturing a composite product, including: 1) preparing a composite powder including 10-50 v. % of a polymer adhesive and 50-90 v. % of a chopped fiber; 2) shaping the composite powder by using a selective laser sintering technology to yield a preform including pores; 3) preparing a liquid thermosetting resin precursor, immersing the preform into the liquid thermosetting resin precursor, allowing a liquid thermosetting resin of the liquid thermosetting resin precursor to infiltrate into the pores of the preform, and exposing the upper end of the preform out of the liquid surface of the liquid thermosetting resin precursor to discharge gas out of the pores of the preform; 4) collecting the preform from the liquid thermosetting resin precursor and curing the preform; and 5) polishing the preform obtained in 4) to yield a composite product.

公开(公告)号：US20230163674A1

公开(公告)日：2023-05-25

申请号：US17646376

申请日：2021-12-29

Applicant: Huazhong University of Science and Technology

Inventor： Bin SU ,  Zheng MA ,  Chunze YAN ,  Yusheng SHI

IPC: H02K55/00 ,  H02K9/19 ,  H02K5/20

CPC classification number: H02K55/00 ,  H02K9/19 ,  H02K5/20

Abstract: The present disclosure provides a superconducting power generation device and a power generation method. The power generation device includes a superconductor, a conductive coil, a permanent magnet and a cooling medium. The superconductor is made of a second-type superconducting material, and when an ambient temperature is lower than a superconducting critical temperature of the second-type superconducting material, the second-type superconducting material is capable of generating a magnetic levitation force for an outer magnet so as to levitate the permanent magnet. After an acting force is applied to the permanent magnet, the position of the permanent magnet is changed relative to that of the conductive coil, and then, magnetic field distribution around the conductive coil is changed, so that the magnetic flux passing through the coil is changed, an induced electromotive force is generated in the coil, and then, conversion from mechanical energy to electric energy is achieved. By using the device provided by the present disclosure, the conversion from the mechanical energy to the electric energy in an ultra-low temperature environment can be achieved, and thus, problems about energy sources on low-temperature celestial bodies in extrasolar systems are solved.