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公开(公告)号：US11718902B2
公开(公告)日：2023-08-08
申请号：US17671147
申请日：2022-02-14
Applicant: Jiangxi University of Science and Technology , Guorui Scientific Innovation Rare Earth Functional Materials (Ganzhou) Co., Ltd
Inventor： Zhigang Wang , Liang Qi , Hebin Wang , Jieyun Ye , Weihao Cai , Xuwei Liu
CPC classification number: C22C38/04 , C21D8/005 , C22C38/005
Abstract: The present disclosure provides rare earth die steel. Mg and B elements are added on the basis of adding rare earth element Y, so that the rare earth element purifies a matrix, and grain boundary occupation by Mg and B is fully utilized to regulate grain network chromium carbides. In addition, the B element can fully improve hardenability of austenite and ensure that non-martensite such as bainite does not appear during the cooling process, and therefore rare earth die steel with high impact toughness and high isotropy is obtained.
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公开(公告)号：US11718890B2
公开(公告)日：2023-08-08
申请号：US17584059
申请日：2022-01-25
Applicant: Jiangxi University of Science and Technology , Guorui Scientific Innovation Rare Earth Functional Materials (Ganzhou) Co., Ltd
Inventor： Zhigang Wang , Lingqiang Zhong , Jieyun Ye , Hebin Wang , Weizhen Liu , Weihao Cai , Xuwei Liu
CPC classification number: C21D9/46 , C21D6/005 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C22C38/002 , C22C38/04
Abstract: A high-strength and high-plasticity TWIP steel and a preparation method thereof are disclosed. In the disclosure, comprehensive properties of TWIP steel are improved by inclusion modification with Ce and Ba addition, fine grain strengthening and twinning nanocrystallization; the grain size is controlled by a low-temperature cold rolling, a transient annealing treatment and a low-temperature tempering treatment. Considering the addition of Ce, stacking fault energy of the TWIP steel is reduced, and the formation of twins, and the division of twins into grains are promoted, which further reduces a mean free path of dislocation motion, thereby improving yield strength, and finally obtaining a high-strength and high-plasticity TWIP steel.
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公开(公告)号：US11465860B2
公开(公告)日：2022-10-11
申请号：US17265658
申请日：2019-12-27
Applicant: JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Yongfang Deng , Weichao Zhang , Jie Yang , Bin Deng
Abstract: A steel plate suspension conveying device and method thereof, includes an initial suspension module, an intermediate transfer module and a tail end unloading module that are respectively provided with a plurality of electromagnets, wherein the electromagnets (5-6) of the initial suspension module controls the steel plate for suspension, the electromagnets (7-14) of the intermediate transfer module controls the motion of the steel plate toward the tail end unloading module, and the electromagnets (15-17) of the tail end unloading module controls the landing of the steel plate; sensor modules (18) installed on the electromagnets, and are capable of detecting the position, speed and temperature information of the steel plate conveyed by the electromagnets; a central processing unit (4) receiving the information sent by the sensor modules (18) and adjusts the magnitude of a current/voltage flowing into the electromagnets, thereby adjusting the magnitude of the electromagnet attraction applied by the electromagnets to the steel plate. The steel plate is conveyed by using suspension, and the steel plate is sufficiently cooled in the conveying process, so that the grain size and grain distribution of the steel plate are more uniform, thereby improving the consistency of the steel plate and enhancing the performance of the steel plate.
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公开(公告)号：US11407078B2
公开(公告)日：2022-08-09
申请号：US16443752
申请日：2019-06-17
Applicant: JiangXi University of Science and Technology
Inventor： Jun Tang , Ruizhi Luo , Yuanhui Xie
Abstract: A grinding device for raised joints of rivets on sheet metal is provided, including a lateral plate, legs, a moving plate, first springs, a first bearing seat, a sleeve, a grinding wheel, a moving bar, a 7-shaped plate, a vertical bar, a second spring, an oscillating plate, etc. The legs are fixedly connected, in a symmetric manner, to left and right sides of the bottom of the lateral plate. A through hole, which has a function of guiding, is formed on a left side of the lateral plate. The moving bar is located in the through hole. In the present disclosure, a driving motor is started to rotate the grinding wheel, the grinding device is moved to enable the grinding wheel to be located above a raised joint, and then the oscillating plate is pulled so that the grinding wheel can move downward to grind the raised joint.
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公开(公告)号：US20220097983A1
公开(公告)日：2022-03-31
申请号：US17265658
申请日：2019-12-27
Applicant: JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Yongfang DENG , Weichao ZHANG , Jie YANG , Bin DENG
Abstract: A steel plate suspension conveying device and method thereof, includes an initial suspension module, an intermediate transfer module and a tail end unloading module that are respectively provided with a plurality of electromagnets, wherein the electromagnets (5-6) of the initial suspension module controls the steel plate for suspension, the electromagnets (7-14) of the intermediate transfer module controls the motion of the steel plate toward the tail end unloading module, and the electromagnets (15-17) of the tail end unloading module controls the landing of the steel plate; sensor modules (18) installed on the electromagnets, and are capable of detecting the position, speed and temperature information of the steel plate conveyed by the electromagnets; a central processing unit (4) receiving the information sent by the sensor modules (18) and adjusts the magnitude of a current/voltage flowing into the electromagnets, thereby adjusting the magnitude of the electromagnet attraction applied by the electromagnets to the steel plate. The steel plate is conveyed by using suspension, and the steel plate is sufficiently cooled in the conveying process, so that the grain size and grain distribution of the steel plate are more uniform, thereby improving the consistency of the steel plate and enhancing the performance of the steel plate.
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Patent Agency Ranking
公开(公告)号：US20210371954A1
公开(公告)日：2021-12-02
申请号：US17198282
申请日：2021-03-11
Inventor： Guanshi WANG , Ping LONG , Wenli LIU , Ying HUANG , Dingshun HE , Lei QIN , Shili HU , Chenliang PENG , Sihai LUO , Guoqiang DENG
Abstract: The present disclosure provides a method for optimizing a liquid injection process of ionic rare earth ore, including the following steps of: 1) testing the hydraulic properties of an ore body; 2) determining the diffusion degree of the ore body; 3) determining the spatial distribution of the rare earth grade and the impurity grade of the ore body prior to leaching; 4) determining model parameters of competitive exchange of rare earth ions and impurity ions with ammonium ions; 5) obtaining distribution of rare earth ion concentration within the ore body after completion of leaching; 6) obtaining a profile plot of a rare earth leaching rate as a function of the concentration and dosage of an injected leaching agent; and 7) determining a minimum leaching agent dosage to achieve a target leaching rate according to the profile plot, and then determining the ammonium sulfate concentration according to the minimum leaching agent dosage.
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公开(公告)号：US11989655B2
公开(公告)日：2024-05-21
申请号：US17079677
申请日：2020-10-26
Applicant: JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Xiaoyan Luo , Hui Yu , Tao Deng , Junxi Liu , Xuetao Zhang
CPC classification number: G06N3/084 , G06N3/04 , G06N3/082 , G06N3/126 , G06N5/022 , G10L25/03 , G10L25/30 , G10L25/51
Abstract: Embodiments of the present application provide a prediction method, device and system for rock mass instability stages, and belong to the technical field of rock mass instability prediction. The method includes the steps: acquiring acoustic emission signals of rock mass; extracting feature parameters from the acquired acoustic emission signals; and predicting instability stages of the rock mass in accordance with the feature parameters and a preset back propagation (BP) neural network model, wherein the preset BP neural network model is obtained by training a BP neural network and a genetic algorithm by virtue of the feature parameters of the acoustic emission signals at different rock mass instability stages. According to the technical solution in the present application, the problem in the training process of the BP neural network model that model parameter optimization may be easily trapped in a locally optimal solution is effectively solved.
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8.发明授权公开(公告)号：US11410280B2
公开(公告)日：2022-08-09
申请号：US17109171
申请日：2020-12-02
Applicant: Jiangxi University of Science and Technology
Abstract: The present application provides a salt and pepper noise filtering method and device based on morphological component analysis. The method comprises: obtaining a to-be-filtered image containing salt and pepper noise; calculating the dimension of the to-be-filtered image, labeled as [n, m]; initializing an n*m-dimensional all-1 labeled matrix as a salt and pepper noise labeled map; obtaining a preset region centered on a pixel point with a pixel value of 0 or 255, and calculating a noise variance between the pixel points in the preset region; labeling the position of a salt and pepper noise point in the salt and pepper noise labeled map according to the noise variance between the pixel points in the preset region, and updating and determining the salt and pepper noise labeled map. The salt and pepper noise is filtered through the method based on morphological component analysis, which improves the quality of the image.
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公开(公告)号：US20210387274A1
公开(公告)日：2021-12-16
申请号：US17204672
申请日：2021-03-17
Applicant: Jiangxi University of Science and Technology
Inventor： Xianghe ZOU , Binbin SU , Yan LUO
Abstract: It is provided an electrolysis and grinding combined machining device and method. The device includes a machine tool bed, a vertical moving mechanism and a horizontal moving mechanism which are provided on the machine tool bed. An electrode clamping device is provided on the vertical moving mechanism, and the electrode clamping device is configured to fix a tool electrode. An electrolysis tank is provided on the horizontal moving mechanism. A workpiece to be machined is placed in the electrolysis tank. The tool electrode includes a metal wire and abrasive materials distributed on a surface of the metal wire. The tool electrode and the workpiece to be machined are electrically connected with a pulse power source. A current sensor is arranged between the workpiece and the pulse power source. A data acquisition card is connected to the current sensor; the data acquisition card is electrically connected with an industrial personal computer.
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公开(公告)号：US20210153437A1
公开(公告)日：2021-05-27
申请号：US17100843
申请日：2020-11-21
Applicant: JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Qingkang LIU , Xiaohong ZHU , Sheng GAO , Yao ZHANG , Min CHEN , Cijun SHUAI
Abstract: The present invention relates to the technical field of crop harvesting machinery, in particular to an automatic harvesting and collecting device for sisal hemp leaves, which includes an up-and-down moving assembly, a steering device, a braking mechanism, a mechanical vision sensor device, a vehicle traveling and controlling device, a forward-and-backward moving assembly, an omnidirectional automatic positioning and rotating device, a shearing and clamping device, a collecting device and a frame.
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