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公开(公告)号：EP4144873A1
公开(公告)日：2023-03-08
申请号：EP22186251.9
申请日：2022-07-21
发明人： HUANG, Lixin , XU, Zuo , LI, Meng , XU, Shiwen , XIE, Liguang , ZHANG, Lijun
摘要： The invention relates to a spinning process of a magnesium alloy wheel hub, which comprises the following steps: step 1, heating a magnesium alloy bar at 350-430 °C and keeping the temperature for 20 minutes; step 2, initially forging and forming on the bar under a forging press, wherein the forging down-pressing speed is 6-15 mm/s; step 3, finally forging and forming on the bar under a forging press, wherein the forging down-pressing speed is 5-8 mm/s; step 4, stress relief annealing on the finally forged magnesium alloy blank; step 5, solid dissolving on the annealed magnesium alloy blank; step 6, taking out the solid-dissolved blank and directly spinning by a spinning machine; step 7, heating treatment and aging treatment. The magnesium alloy wheel hub with excellent performance is obtained by the process, and the spinning process and processing efficiency are greatly improved.
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2.发明公开
公开(公告)号：EP3995226A1
公开(公告)日：2022-05-11
申请号：EP21187574.5
申请日：2021-07-25
发明人： WU, Yaqi , HUANG, Xiaobing , LI, Zhiguang , WANG, Hui , XU, Zuo , WU, Hanqi , ZHU, Zhihua , XIONG, Guoyuan
摘要： The present disclosure belongs to the technical field of casting equipment, and provides a method and system for adjusting process parameters of a die-casting machine, and a storage medium. The method and the system can receive die wheel type, molten aluminum temperature, interruption time and defect information in real time, respond to the above information one by one according to a set response priority order, select die-casting process parameters, and automatically adjust different process parameters for different products and different working conditions, thereby realizing simultaneous control of multiple die-casting machines, replacing manual adjustment and improving product quality stability and production efficiency.
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公开(公告)号：EP4000949A1
公开(公告)日：2022-05-25
申请号：EP21156443.0
申请日：2021-02-10
发明人： LI, Xi , XU, Zuo , ZHU, Zhihua , XU, Shiwen , LI, Shide , HUANG, Shaobing , CHEN, Mingbo , LI, Minglei
IPC分类号： B60B21/12
摘要： The present application relates to a sound absorber unit and a vehicle wheel having a sound absorber comprising at least one sound absorber unit or at least one sound absorber module which is composed of a plurality of sound absorber units as a whole. The sound absorber unit is constructed into a box body in a hexahedron shape, a three-layer Helmholtz resonance sound absorption structure with double holes and single holes combined is formed, and meanwhile, the sound absorber unit or the sound absorber assembly forms a structural resonance sound absorber. According to the application, the double-absorption wheel air chamber sound resonance function organically combining Helmholtz resonance sound absorption and structural resonance sound absorption can be realized.
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公开(公告)号：EP4141728A1
公开(公告)日：2023-03-01
申请号：EP22192332.9
申请日：2022-08-26
发明人： XU, Zuo , TIAN, Tao , WANG, Ning , HUANG, Shaobing , CHEN, Lihua
IPC分类号： G06F30/17 , G05B19/4097 , G05B19/4103
摘要： The application provides a curve fitting method, apparatus and device based on a drawing tool, which relates to the technical field of mechanical processing, and is used to improve the accuracy of curve fitting. The method includes: determining a fitting area containing the original curve, in the fitting area, performing at least one sub-fitting operation on the original curve until the end condition of the curve fitting is satisfied, and generating a fitting curve corresponding to the original curve based on the fitting curve corresponding to each sub-fitting operation. This method can fit the original curve segments in the fitting area, which improves the accuracy of the obtained fitting curve.
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公开(公告)号：EP4141703A1
公开(公告)日：2023-03-01
申请号：EP22192351.9
申请日：2022-08-26
发明人： XU, Zuo , WANG, Ning , TIAN, Tao , LI, Xi , CHEN, Lihua
IPC分类号： G06F16/583 , G06T7/50 , G06V10/40 , G06V10/44
摘要： The application provides a hub image retrieval method and a device thereof, relating to the technical field of information retrieval, which is used for improving the retrieval accuracy of an image containing a hub. The method comprises the following steps: performing feature extraction on a hub image to be processed containing a target hub, and obtaining a hub feature to be processed containing N sub-hub features, wherein the N sub-hub features at least include information wherein the features of a hub window of the target hub; determining similarities between candidate hub features of each candidate hub image and the hub features to be processed; selecting a candidate hub image matching the hub image to be processed from the plurality of candidate hub images based on the determined respective similarities.
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公开(公告)号：EP4000948A1
公开(公告)日：2022-05-25
申请号：EP21156442.2
申请日：2021-02-10
发明人： LI, Xi , XU, Zuo , ZHU, Zhihua , XU, Shiwen , LI, Shide , HUANG, Shaobing , CHEN, Mingbo , LI, Minglei
IPC分类号： B60B21/12
摘要： The application relates to a wheel with a sound absorption device, wherein the sound absorption device (10) is arranged in a wheel air chamber (30) to reduce acoustic resonance, the sound absorption device comprises two resonance sound absorption structure units which are connected in parallel, a first sound absorption frequency band of a first resonance sound absorption structure unit (10-1) and a second sound absorption frequency band of a second resonance sound absorption structure unit (10-2) are adjacent to each other or partially overlap with each other, and the resonance frequency of the wheel air chamber is contained at the adjacent part of the first sound absorption frequency band and the second sound absorption frequency band or in the overlapping area of the first sound absorption frequency band and the second sound absorption frequency band.
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公开(公告)号：EP4112764A1
公开(公告)日：2023-01-04
申请号：EP22174529.2
申请日：2022-05-20
发明人： HUANG, Lixin , XU, Zuo , KONG, Decai , SHEN, Jingru , LI, Meng , CHEN, Tieqiang , ZHANG, Qingzhu
摘要： A method of producing a magnesium alloy wheel hub, comprises the following steps: step 1, heating a magnesium alloy bar to 350~430°C and keeping the temperature for 20 minutes; step 2, initially forging and forming the bar under a forging press, the forging speed is 6~15 mm/s; step 3, finally forging and forming the bar under a forging press, and the forging speed is 5~8 mm/s; step 4, testing the microstructure and material properties of the final forged blank to obtain the layered material property distribution on the thickness of the blank; step 5, according to the layered material property distribution on the thickness of the blank obtained in step 4, selecting the part that meets the requirements to make a magnesium alloy wheel hub. According to the different properties in the thickness direction of the blank, the spoke orientation of the magnesium alloy wheel can be quickly designed according to the needs, and the magnesium alloy wheel that meets the usage performance can be obtained, which greatly improves the design and processing efficiency.
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公开(公告)号：EP3960330A1
公开(公告)日：2022-03-02
申请号：EP21191812.3
申请日：2021-08-17
发明人： KANG, Longtao , XU, Zuo , WU, Hanqi , ZHU, Zhihua , XIONG, Guoyuan
摘要： The application relates to the technical field of casting and provides a casting mold, a counter-pressure casting method and a low-pressure casting method. The casting mold includes an upper mold insert arranged on an upper mold, a riser cavity is formed in a lower part of the upper mold insert, the riser cavity communicates with a mold cavity, an air pipe communicating with the riser cavity is arranged on the upper mold insert, one end of the air pipe is located at a top of the riser cavity, and compressed air can be introduced. The compressed air is introduced into the air pipe in the casting process, an upper part of the riser cavity forms a pressure with the same order of magnitude in a heat-insulating furnace, and the pressure of the riser is transmitted to a far-end defect position through local extrusion, thereby achieving the purpose of feeding the defect position to eliminate the defect.
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公开(公告)号：EP3950171A1
公开(公告)日：2022-02-09
申请号：EP21187576.0
申请日：2021-07-25
发明人： LI, Zhen , XU, Zuo , WU, Hanqi , ZHU, Zhihua , XIONG, Guoyuan
摘要： The application belongs to the technical field of a casting mold and provides a side mold and a low-pressure hub casting mold. Channels of a cooling loop are processed in a back cavity of a side mold frame, a distance between the channels along a solidification direction of a casting gradually increases, and a cooling medium flows along the cooling loop, the ability of taking away heat changes from strong to weak, and a larger temperature gradient of the side mold may be formed by superposition with a temperature gradient formed by the thickness of the side mold; furthermore, heat-insulating gaskets play a role in heat insulation and reduce the influence of the adjacent channels to make the temperature gradient more obvious, so that a good feeding range is formed, the compactness of the casting is improved and the excellent mechanical property of a rim part is achieved; and meanwhile, local cooling is accelerated, so that the production rhythm is accelerated and the production efficiency of the casting process is improved.
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公开(公告)号：EP3950169A1
公开(公告)日：2022-02-09
申请号：EP21188973.8
申请日：2021-07-30
发明人： LI, Zhen , XU, Zuo , WU, Hanqi , ZHU, Zhihua , XIONG, Guoyuan
摘要： The application pertains to the technical field of casting molds and provides a cooling water channel for a casting mold. The cooling water channel adopts a sealing structure in which a water channel insert, a sealing cover plate and a metal corrugated sealing ring are matched with each other, wherein a bottom surface of the metal corrugated sealing ring is corrugated or two side walls of the metal corrugated sealing ring are corrugated, and the sealing cover plate is pressed to enable the metal corrugated sealing ring to generate elastic deformation, so that corrugations on the two side walls of the metal corrugated sealing ring and a side wall of the water channel form multi-point contact or the bottom surface of the metal corrugated sealing ring expands to make the side walls of the metal corrugated sealing ring in tight contact with the water channel to achieve a water channel sealing effect, and in this way, it is not liable to cause fatigue cracking and water leakage in the production process of the mold; furthermore, machining and manufacturing are easy, the maintenance difficulty of the mold is low and the production cost may be obviously reduced.
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