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公开(公告)号：US20230071499A1
公开(公告)日：2023-03-09
申请号：US17576257
申请日：2022-01-14
Applicant: CITIC Dicastal Co., Ltd.
Inventor： Lixin Huang , Zhihua Zhu , Liguang Xie , Hanqi Wu , Meng Li , Tieqiang Chen
Abstract: The disclosure discloses the forging process of a magnesium alloy wheel hub comprises the following steps: step 1, heating a magnesium alloy bar to 350-420° C. and keeping the temperature for 20 minutes; step 2, forging and forming the bar under a 6000-ton forging press, and controlling the forging process in sections. The forging process of the disclosure adopts sectional control, different forging process parameters are adopted in different forging stages, so that magnesium alloy bars can exert maximum forgeability in different deformation stages, make magnesium alloy deformation process more continuous, make forging process easier, obtain forged magnesium alloy wheel hub with excellent properties, and greatly improve forging process and processing efficiency.
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公开(公告)号：US11660659B2
公开(公告)日：2023-05-30
申请号：US17576257
申请日：2022-01-14
Applicant: CITIC Dicastal Co., Ltd.
Inventor： Lixin Huang , Zhihua Zhu , Liguang Xie , Hanqi Wu , Meng Li , Tieqiang Chen
CPC classification number: B21K1/40 , B21J1/06 , B21J5/008 , B60B2310/208
Abstract: The disclosure discloses the forging process of a magnesium alloy wheel hub comprises the following steps: step 1, heating a magnesium alloy bar to 350-420° C. and keeping the temperature for 20 minutes; step 2, forging and forming the bar under a 6000-ton forging press, and controlling the forging process in sections. The forging process of the disclosure adopts sectional control, different forging process parameters are adopted in different forging stages, so that magnesium alloy bars can exert maximum forgeability in different deformation stages, make magnesium alloy deformation process more continuous, make forging process easier, obtain forged magnesium alloy wheel hub with excellent properties, and greatly improve forging process and processing efficiency.
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公开(公告)号：US12091736B2
公开(公告)日：2024-09-17
申请号：US17576276
申请日：2022-01-14
Applicant: CITIC Dicastal Co., Ltd.
Inventor： Lixin Huang , Zuo Xu , Meng Li , Shiwen Xu , Liguang Xie , Lijun Zhang
Abstract: The disclosure discloses 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 final 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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公开(公告)号：US11827958B2
公开(公告)日：2023-11-28
申请号：US17576294
申请日：2022-01-14
Applicant: CITIC Dicastal Co., Ltd.
Inventor： Lixin Huang , Zhihua Zhu , Shiwen Xu , Jingru Shen , Liguang Xie , Naizheng Hu
Abstract: The disclosure discloses a high-speed spinning magnesium alloy and a preparation method thereof, the magnesium alloy has Mg—Al—Zn—Mn—Sr alloy with a high formability and high strength, and its chemical composition mass percentage is: Al: 2.4-4.5 wt. %; Zn: 0.6-1.2 wt. %; Mn: 0.4-0.6 wt. %; Sr: 0.15-0.3 wt. %; the balance is Mg. The present disclosure adopts the principle that by increasing the content of Mn in the magnesium alloy, a large amount of Mn-rich phase is generated during the alloy preparation process, and the degree of subcooling is controlled so that a fine spherical dispersed nano-scale Mn-rich phase is obtained during the solidification process. The nano-scale Mn-rich precipitate phase can pin the grain boundaries and inhibit the grain boundary migration to refine grains and achieve the effect of improving the strength. The divorced eutectic Mg17Al12 phase generated during the casting process will deteriorate the structure, so Sr is added to the alloy, Sr combining with Al to suppress the coarse phase of divorced eutectic Mg17Al12, refine the grains, increase the amount of eutectic, and reduce the risk of thermal cracking of large-size cast bars. In addition, Sr weakens the texture during the high-temperature spinning forming process and reduces the risk of cracking during the spinning tension, which is beneficial to high-speed spinning forming.
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Patent Agency Ranking
公开(公告)号：US20230080640A1
公开(公告)日：2023-03-16
申请号：US17576276
申请日：2022-01-14
Applicant: CITIC Dicastal Co., Ltd.
Inventor： Lixin Huang , Zuo Xu , Meng Li , Shiwen Xu , Liguang Xie , Lijun Zhang
Abstract: The disclosure discloses 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 final 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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公开(公告)号：US20230194171A1
公开(公告)日：2023-06-22
申请号：US17676297
申请日：2022-02-21
Applicant: CITIC Dicastal Co., Ltd.
Inventor： Lixin Huang , Meng Li , Tieqiang Chen , Liguang Xie , Jinwei Liu , Xiusong Dong , Dan Yao
CPC classification number: F27B3/18 , C22C1/026 , F27D27/005
Abstract: The disclosure discloses an aluminum alloy material smelting device, comprising a furnace, a cutter packing device with a stirring shaft, a packing basket, a cutter-type stirring head, the stirring shaft connected with the packing basket, the bottom of the packing basket connected with a cutter-type stirring head, the cutter-type stirring head comprising a plurality of stirring blades, one end of the stirring blades connected with the bottom of the packing basket, the other end connected with each other on the central axis of the packing basket, and the side wall of the packing basket provided with a liquid passage hole to form liquid exchange with the solution outside the packing basket; the rotation of the cutter-type stirring head forming a solution vortex to accelerate the diffusion of added elements, and the vortex only formed under the stirring head, which will not damage the covering film formed on the surface of aluminum alloy, effectively prevent the scum on the surface from being involved in the solution again, thereby ensuring the consistency of the properties and chemical composition of the prepared aluminum alloy material, and reducing the influence of aluminum alloy scum on the solution.
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7.发明公开公开(公告)号：US20230193433A1
公开(公告)日：2023-06-22
申请号：US17576294
申请日：2022-01-14
Applicant: CITIC Dicastal Co., Ltd.
Inventor： Lixin Huang , Zhihua Zhu , Shiwen Xu , Jingru Shen , Liguang Xie , Naizheng Hu
Abstract: The disclosure discloses a high-speed spinning magnesium alloy and a preparation method thereof, the magnesium alloy has Mg-AI-Zn-Mn-Sr alloy with a high formability and high strength, and its chemical composition mass percentage is: Al: 2.4-4.5 wt.%; Zn: 0.6-1.2 wt.%; Mn: 0.4-0.6 wt.%; Sr: 0.15-0.3 wt.%; the balance is Mg. The present disclosure adopts the principle that by increasing the content of Mn in the magnesium alloy, a large amount of Mn-rich phase is generated during the alloy preparation process, and the degree of subcooling is controlled so that a fine spherical dispersed nano-scale Mn-rich phase is obtained during the solidification process. The nano-scale Mn-rich precipitate phase can pin the grain boundaries and inhibit the grain boundary migration to refine grains and achieve the effect of improving the strength. The divorced eutectic Mg17Al12 phase generated during the casting process will deteriorate the structure, so Sr is added to the alloy, Sr combining with Al to suppress the coarse phase of divorced eutectic Mg17Al12, refine the grains, increase the amount of eutectic, and reduce the risk of thermal cracking of large-size cast bars. In addition, Sr weakens the texture during the high-temperature spinning forming process and reduces the risk of cracking during the spinning tension, which is beneficial to high-speed spinning forming.
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公开(公告)号：US11084057B2
公开(公告)日：2021-08-10
申请号：US16404401
申请日：2019-05-06
Applicant: CITIC Dicastal CO., LTD
Inventor： Zuo Xu , Guoyuan Xiong , Weidong Liu , Na Zhang , Liangjian Yue , Liguang Xie , Jing Wang , Shujuan Li
Abstract: The present application provides a wheel bolt hole protection plug placing device, which includes a frame, a lifting cylinder, guiding shafts, high precision linear bearings, a flange, a connecting shaft, a roller way, a bracket, a first base, a first bearing, a first sleeve, a rotating cylinder with braking function, an end cap, a second base, a second bearing, a second sleeve, a shaft, first linear bearings, contactors, springs, a synchronous cam, a gland, a visual sensor, a mounting frame, a first linear guiding rail, a first guiding rail sliding seat, a first screw nut, a first screw, a first servo motor and so on.
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公开(公告)号：US10751807B2
公开(公告)日：2020-08-25
申请号：US16407666
申请日：2019-05-09
Applicant: CITIC Dicastal CO., LTD
Inventor： Weidong Liu , Na Zhang , Liguang Xie , Jing Wang , Shujuan Li
IPC: B23B31/171 , B23Q3/08
Abstract: The present application provides a material transferring and positioning device for a wheel machining center, which includes a base plate, a base, a first bearing, a first shaft sleeve, a hydraulic cylinder brake, a rotary cylinder, a cap and so on. The application may meet the positioning requirement of the wheel machining center, and has the advantages of simple structure, convenient manufacture, stable performance, high positioning precision and simple operation, so that it is very suitable for automatic mass production.
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