Patents by Inventor Jianchao HAN
Jianchao HAN 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).
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Patent number: 11975370Abstract: The present disclosure provides a pulse current assisted uncanned rolling method for titanium-TiAl composite plates, including the following specific steps: 1. preparing titanium alloy sheets; 2. preparing TiAl alloy sheets; 3. uncanned lay-up; 4. pulse current assisted hot-rolling; 5. separation and subsequent processing, thus getting the titanium-TiAl composite plates. The composite plates are of good quality on the surface without oxide layer shedding, no cracks at the edges and the ends, with uniform and fine microstructures, good bonding interface and excellent mechanical properties.Type: GrantFiled: October 23, 2020Date of Patent: May 7, 2024Assignee: Taiyuan University of TechnologyInventors: Jianchao Han, Yi Jia, Tao Wang, Zhongkai Ren, Yuanming Liu, Dongping He, Sha Li, Miao Guo
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Patent number: 11845117Abstract: An asynchronous rolling mill with a super large diameter ratio comprises a rolling mill stand, a press-down device, a balancing device, an upper roll system, and an arc-shaped plate device. The arc-shaped plate device comprises an arc-shaped plate, the arc-shaped plate is arranged opposite to the upper roll, and the arc-shaped plate and the upper roll are cooperated to roll strips. The present disclosure also provides a method for rolling a strip using an asynchronous rolling mill with a super large diameter ratio. The asynchronous rolling mill can roll with super large diameter ratio and different speeds, and has a large angle to engage, thereby reducing the external friction force of a workpiece and improving strip forming quality.Type: GrantFiled: June 5, 2023Date of Patent: December 19, 2023Assignee: TAIYUAN UNIVERSITY OF TECHNOLOGYInventors: Tao Wang, Zhiqiang Li, Gang Dai, Jianchao Han, Zhongkai Ren, Yuanming Liu, Qingxue Huang
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Patent number: 11833559Abstract: A transverse vibration rolling system and a preparation method for a double-layer metal composite ultra-thin strip relate to a technical field of rolling, which solve problems including poor rolling and bonding effects, low geometric accuracy, and poor plate shape quality of metal composite ultra-thin strips. The transverse vibration rolling system includes: a first roll, a second roll, a first hydraulic vibrator, a second hydraulic vibrator, a first hydraulic motor, a second hydraulic motor, a check valve, a first hydraulic pump, a first overflow valve, an oil tank, a controller, a second overflow valve, a second hydraulic pump, an electromagnetic reversing valve, a first speed control valve, and a second speed control valve. The transverse vibration of the rolls of the present invention can apply transverse shearing force on the ultra-thin metal strips during the bond rolling.Type: GrantFiled: August 24, 2021Date of Patent: December 5, 2023Assignee: TAIYUAN UNIVERSITY OF TECHNOLOGYInventors: Jingwei Zhao, Tao Wang, Linan Ma, Jianchao Han, Yuanming Liu, Zhongkai Ren, Qingxue Huang
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Publication number: 20230321702Abstract: An asynchronous rolling mill with a super large diameter ratio comprises a rolling mill stand, a press-down device, a balancing device, an upper roll system, and an arc-shaped plate device. The arc-shaped plate device comprises an arc-shaped plate, the arc-shaped plate is arranged opposite to the upper roll, and the arc-shaped plate and the upper roll are cooperated to roll strips. The present disclosure also provides a method for rolling a strip using an asynchronous rolling mill with a super large diameter ratio. The asynchronous rolling mill can roll with super large diameter ratio and different speeds, and has a large angle to engage, thereby reducing the external friction force of a workpiece and improving strip forming quality.Type: ApplicationFiled: June 5, 2023Publication date: October 12, 2023Inventors: Tao WANG, Zhiqiang LI, Gang DAI, Jianchao HAN, Zhongkai REN, Yuanming LIU, Qingxue HUANG
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Patent number: 11779450Abstract: The present invention provides a filter device, including a filtering part, a constraining part, a stent part, and a connecting part. The filtering part has a first end and a second end opposite to each other. The constraining part is degradable and at least configured to constrain the first end of the filtering part. The stent part has a first end and a second end opposite to each other. The first end of the stent part is connected to the second end of the filtering part, and disposed coaxial with the filtering part. The connecting part is disposed on one or more of the first end of the filtering part and the second end of the stent part, and is configured to connect to an external mechanism, and the constraining part is further configured to constrain the second end of the stent part when the connecting part is disposed at the second end of the stent part.Type: GrantFiled: August 9, 2018Date of Patent: October 10, 2023Assignee: SHANGHAI BLUEVASCULAR MEDTECH CO., LTD.Inventors: Yongfeng Zhu, Qing Zhu, Zhonghua Li, Linlin Zhang, Wenhui Jiao, Jianchao Han, Yanbin Gao
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Patent number: 11745233Abstract: A single-side tower-type roller system based asynchronous rolling mill for rolling an ultra-thin composite strip and a hydraulic system therefor are provided. The mill includes a machine frame and reel assemblies. An upper roller system assembly and a lower roller system assembly are arranged in the machine frame. A down-pressing assembly is arranged on the machine frame and used to adjust a roll gap between the upper roller system assembly and the lower roller system assembly. A support roller balance assembly is arranged on the machine frame and used to support and balance the upper roller system assembly. The lower roller system assembly includes right and left working rollers. The right working roller is a plain roller. The left working roller is a patterned roller. A left-pressing assembly is arranged on the machine frame and used to adjust a roll gap between the right and left working rollers.Type: GrantFiled: October 8, 2021Date of Patent: September 5, 2023Assignee: TAIYUAN UNIVERSITY OF TECHNOLOGYInventors: Zhongkai Ren, Tao Wang, Xiao Liu, He Li, Jianchao Han, Dongping He, Qingxue Huang
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Publication number: 20230066668Abstract: A single-side tower-type roller system based asynchronous rolling mill for rolling an ultra-thin composite strip and a hydraulic system therefor are provided. The mill includes a machine frame and reel assemblies. An upper roller system assembly and a lower roller system assembly are arranged in the machine frame. A down-pressing assembly is arranged on the machine frame and used to adjust a roll gap between the upper roller system assembly and the lower roller system assembly. A support roller balance assembly is arranged on the machine frame and used to support and balance the upper roller system assembly. The lower roller system assembly includes right and left working rollers. The right working roller is a plain roller. The left working roller is a patterned roller. A left-pressing assembly is arranged on the machine frame and used to adjust a roll gap between the right and left working rollers.Type: ApplicationFiled: October 8, 2021Publication date: March 2, 2023Inventors: Zhongkai Ren, Tao Wang, Xiao Liu, He Li, Jianchao Han, Dongping He, Qingxue Huang
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Publication number: 20220241831Abstract: The present disclosure provides a pulse current assisted uncanned rolling method for titanium-TiAl composite plates, including the following specific steps: 1. preparing titanium alloy sheets; 2. preparing TiAl alloy sheets; 3. uncanned lay-up; 4. pulse current assisted hot-rolling; 5. separation and subsequent processing, thus getting the titanium-TiAl composite plates. The composite plates are of good quality on the surface without oxide layer shedding, no cracks at the edges and the ends, with uniform and fine microstructures, good bonding interface and excellent mechanical properties.Type: ApplicationFiled: October 23, 2020Publication date: August 4, 2022Inventors: Jianchao HAN, Yi JIA, Tao WANG, Zhongkai REN, Yuanming LIU, Dongping HE, Sha LI, Miao GUO
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Publication number: 20220184678Abstract: A method for setting a roll gap of sinusoidal corrugated rolling for a metal composite plate includes steps of: determining entrance thicknesses, exit thicknesses, a width, and a rolling temperature of a difficult-to-deform metal slab and an easy-to-deform metal slab; detecting a roll speed and an entrance speed of a metal composite slab, obtaining a roll radius and friction factors; determining parameters of a sinusoidal corrugating roll and a quantity of complete sinusoidal corrugations on the sinusoidal corrugating roll; then calculating a time required for a complete corrugated rolling; calculating a rolling force at any time during the sinusoidal corrugated rolling of the metal composite plate; and calculating the roll gap S of the corrugated rolling at any time according to the rolling force F, and configuring a rolling mill to have the roll gap S according to an actual rolling schedule before normal production.Type: ApplicationFiled: February 28, 2022Publication date: June 16, 2022Inventors: Yaunming Liu, Tao Wang, Pingju Hao, Zhenhua Wang, Dongping He, Zhongkai Ren, Jianchao Han, Qingxue Huang
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Publication number: 20220152675Abstract: The present invention relates to the technical field of fabricating a metal composite strip, and specifically relates to a method for differential temperature rolling of composite strips based on actions of a friction roller and a device thereof. A method for differential temperature rolling of composite strips based on actions of a friction roller comprises steps of: S1: preparing a metal strip to be bonded, and performing surface treatment on the metal strip to be bonded; S2: frictionally heating the metal strip to be bonded by several sets of friction roller heating devices; measuring a surface temperature of the friction-heated metal strip to be bonded strip by a temperature detector; according to a measured temperature, adjusting a rotation speed of the friction roller in the friction roller heating devices; and S3: transporting the heated metal strip to be bonded to a rolling mill for rolling to obtain a metal composite strip.Type: ApplicationFiled: January 31, 2022Publication date: May 19, 2022Inventors: Tao Wang, Changjiang Wang, Yue Wu, Peng Chen, Jianchao Han, Zhongkai Ren, Yuanming Liu, Qingxue Huang
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Publication number: 20220097111Abstract: A plate and strip rolling process oriented efficient and stable current applying manipulator is provided, which aims to effectively avoid potential safety hazards caused integral electrifying of the rack during normal current applying, can improve the defects that current loss is caused by a normal current applying way and the service life of the roller is shortened, and the difficulty in applying pulse current to plate strips while rolling plate strips with limited length dimensions at a higher temperature, and can realize stable loading of pulse current with limited dimension, and effectively act pulse current within a rolling region.Type: ApplicationFiled: August 13, 2021Publication date: March 31, 2022Inventors: Zhongkai Ren, Xiongwei Guo, Hanqing Shi, Tao Wang, Xiaobao Ma, Peng Chen, Jianchao Han, Yuanming Liu, Qingxue Huang
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Publication number: 20210379634Abstract: A transverse vibration rolling system and a preparation method for a double-layer metal composite ultra-thin strip relate to a technical field of rolling, which solve problems including poor rolling and bonding effects, low geometric accuracy, and poor plate shape quality of metal composite ultra-thin strips. The transverse vibration rolling system includes: a first roll, a second roll, a first hydraulic vibrator, a second hydraulic vibrator, a first hydraulic motor, a second hydraulic motor, a check valve, a first hydraulic pump, a first overflow valve, an oil tank, a controller, a second overflow valve, a second hydraulic pump, an electromagnetic reversing valve, a first speed control valve, and a second speed control valve. The transverse vibration of the rolls of the present invention can apply transverse shearing force on the ultra-thin metal strips during the bond rolling.Type: ApplicationFiled: August 24, 2021Publication date: December 9, 2021Inventors: Jingwei Zhao, Tao Wang, Linan Ma, Jianchao Han, Yuanming Liu, Zhongkai Ren, Qingxue Huang
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Patent number: 10918479Abstract: A stent (1) used for a heart valve prosthesis and the heart valve prosthesis that includes the stent (1) and is used for heart valve replacement. The stent is configured to support a heart valve (3) and includes, along a longitudinal axis, an inflow section (8), an outflow section (6) and a transition section (7) between the inflow section (8) and the outflow section (6). The stent (1) has a contracted delivery configuration and an expanded deployed configuration. In the expanded deployed configuration, the inflow section (8) defines a concave contour that is complementary to a structure of a native valve annulus. The concave contour enables self-deployment and close adherence of the stent (1), thereby preventing its displacement and perivalvular leakage after implantation.Type: GrantFiled: October 15, 2018Date of Patent: February 16, 2021Assignee: SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO., LTD.Inventors: Guoming Chen, Yu Li, Feng Huang, Lei Huang, Jianchao Han, Yihao Duan, Shaohui Chen, Qiyi Luo
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Publication number: 20200129281Abstract: The present invention provides a filter device, including a filtering part, a constraining part, a stent part, and a connecting part. The filtering part has a first end and a second end opposite to each other. The constraining part is degradable and at least configured to constrain the first end of the filtering part. The stent part has a first end and a second end opposite to each other. The first end of the stent part is connected to the second end of the filtering part, and disposed coaxial with the filtering part. The connecting part is disposed on one or more of the first end of the filtering part and the second end of the stent part, and is configured to connect to an external mechanism, and the constraining part is further configured to constrain the second end of the stent part when the connecting part is disposed at the second end of the stent part.Type: ApplicationFiled: August 9, 2018Publication date: April 30, 2020Inventors: Yongfeng ZHU, Qing ZHU, Zhonghua LI, Linlin ZHANG, Wenhui JIAO, Jianchao HAN, Yanbin GAO
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Publication number: 20190046316Abstract: A stent (1) used for a heart valve prosthesis and the heart valve prosthesis that includes the stent (1) and is used for heart valve replacement. The stent is configured to support a heart valve (3) and includes, along a longitudinal axis, an inflow section (8), an outflow section (6) and a transition section (7) between the inflow section (8) and the outflow section (6). The stent (1) has a contracted delivery configuration and an expanded deployed configuration. In the expanded deployed configuration, the inflow section (8) defines a concave contour that is complementary to a structure of a native valve annulus. The concave contour enables self-deployment and close adherence of the stent (1), thereby preventing its displacement and perivalvular leakage after implantation.Type: ApplicationFiled: October 15, 2018Publication date: February 14, 2019Inventors: Guoming CHEN, Yu LI, Feng HUANG, Lei HUANG, Jianchao HAN, Yihao DUAN, Shaohui CHEN, Qiyi LUO
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Publication number: 20160000559Abstract: A stent (1) used for a heart valve prosthesis and the heart valve prosthesis that includes the stent (1) and is used for heart valve replacement. The stent is configured to support a heart valve (3) and includes, along a longitudinal axis, an inflow section (8), an outflow section (6) and a transition section (7) between the inflow section (8) and the outflow section (6). The stent (1) has a contracted delivery configuration and an expanded deployed configuration. In the expanded deployed configuration, the inflow section (8) defines a concave contour that is complementary to a structure of a native valve annulus. The concave contour enables self-deployment and close adherence of the stent (1), thereby preventing its displacement and perivalvular leakage after implantation.Type: ApplicationFiled: February 25, 2014Publication date: January 7, 2016Inventors: Guoming CHEN, Yu LI, Feng HUANG, Lei HUANG, Jianchao HAN, Yihao DUAN, Shaohui CHEN, Qiyi LUO