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1. 发明公开

EP3845327A1 SLURRY PRODUCTION APPARATUS FOR SEMI-SOLID SLURRY 审中-公开
公开(公告)号：EP3845327A1
公开(公告)日：2021-07-07
申请号：EP19814862.9
申请日：2019-02-27
申请人： Zhuhai Runxingtai Electrical Co., Ltd
发明人： ZHANG, Ying , WANG, Jicheng , LI, Gunan , LIU, Bingfeng , WANG, Yong , REN, Huaide
IPC分类号： B22D1/00 , B22D17/20
摘要： The present invention provides a slurrying device for semi-solid slurry, comprising a rotor stirrer (1) and a slurrying tank (2). The rotor stirrer (1) comprises a stirring drum (9) and a rotor stirring rod (4) extending from the stirring drum (9) into the slurrying tank (2). A driving device for driving the rotor stirring rod (4) to rotate is provided inside the stirring drum (2). A transmission gear (6) is arranged on an end face of the stirring drum (9) facing the slurrying tank (2). The rotor stirring rod (4) is meshed with the transmission gear (6). The transmission gear (6) is provided with n teeth, with the distance between a previous tooth and a next tooth adjacent to each other being a and the width of each tooth being b. Meshing teeth matched with the transmission gear (6) are provided at an end of at least one rotor stirring rod (4) connected to the transmission gear (6). Each rotor stirring rod (4) comprises m meshing teeth, with the distance between a previous meshing tooth and a next meshing tooth adjacent to each other being b and the width of each meshing tooth being a.

2. 发明公开

EP3895829A1 DIE CASTING METHOD FOR FILTERING CAVITY 有权
公开(公告)号：EP3895829A1
公开(公告)日：2021-10-20
申请号：EP19896251.6
申请日：2019-12-02
申请人： Zhuhai Runxingtai Electrical Co., Ltd
发明人： ZHANG, Ying , TAN, Jie , WANG, Jicheng , LI, Gunan , HUANG, Ziqiang , REN, Huaide
IPC分类号： B22D17/00 , B22D1/00 , C22C1/06 , C22C1/03
摘要： The present application discloses a die casting method for a filtering cavity, which comprises the following steps: (1) transferring an aluminum alloy liquid to a stirrer provided with an electromagnetic inductor and a stirring rod, wherein the stirring rod penetrates through the stirrer; (2) covering the stirrer and evacuating the air inside the stirrer; (3) starting that stirrer to stir the aluminum alloy liquid under a closed vacuum condition, so that the aluminum alloy liquid is electromagnetically stirred in the direction of a magnetic field generated by the electromagnetic inductor, and simultaneously mechanically stirred under an rotating action of the stirring rod; the aluminum alloy liquid is stirred until the aluminum alloy liquid is semisolid and stirring is stopped to obtain a semisolid aluminum alloy slurry, wherein a stirring time is set to be 20-80 minutes, and a temperature of the semisolid aluminum alloy slurry is 550-650°C; (4) injecting the semisolid aluminum alloy slurry obtained in the step (3) into a filter die, die casting at an injection speed of 1.5-2.5 m/s, an injection specific pressure of 30-80 MPa and a pressurization pressure of 60-80 MPa, and maintaining the pressure for 7-30 seconds to obtain a filtering cavity, wherein the temperature of the filter die is set to 250-400°C.

3. 发明公开

EP3366387A1 METHOD AND DEVICE FOR PREPARING SEMI-SOLID SLURRY 有权
公开(公告)号：EP3366387A1
公开(公告)日：2018-08-29
申请号：EP16869861.1
申请日：2016-11-08
申请人： Zhuhai Runxingtai Electrical Co., Ltd
发明人： REN, Huaide , ZHANG, Ying , WANG, Jicheng , LI, Gunan
IPC分类号： B22D1/00 , B22D17/00
CPC分类号： B22D1/00 , B01F7/00041 , B01F7/00291 , B01F7/007 , B01F7/00716 , B01F7/18 , B01F15/00175 , B01F15/00396 , B01F15/063 , B01F15/066 , B01F15/068 , B01F2015/061 , B01F2215/0044 , B22D17/00 , B22D17/007 , B22D21/04
摘要： A method of preparing a semi-solid slurry, in which combined mechanical stirring and liquid cooling are used to prepare a semi-solid slurry, the method comprising control processes for stirring speed, cooling medium temperature and cooling medium flow amount at different slurry temperatures. The method prepares a semi-solid slurry spherical wafer with high regularity and good quality. Further provided is a slurry-preparing device suitable for the preparation method, comprising sturctures such as a slurry-accommodating receptacle (2), a mechanical stirring rod (3), a tirring blade member (8), a cooling medium controller (7), a cooling medium inlet pipe (4) and a cooling medium liquid return pipe (6), wherein, the stirring blade member (8) is inserted in mechanical stirring rod (3), such that during the stirring process it can function as a heat exchange element. The method and device for preparing a slurry has high efficiency, is suitable for preparation of a semi-solid slurry of multiple types of alloys such as an aluminum alloy, a magnesium alloy, a zinc alloy or a copper alloy, and resolves the problem of a low solid content in a semi-solid slurry and poor slurry quality.

4. 发明公开

EP3741877A1 HIGH THERMAL CONDUCTIVITY ALUMINIUM ALLOY AND PREPARATION METHOD THEREFOR 审中-实审
公开(公告)号：EP3741877A1
公开(公告)日：2020-11-25
申请号：EP19840621.7
申请日：2019-08-14
申请人： Zhuhai Runxingtai Electrical Co., Ltd
发明人： REN, Huaide , WANG, Jicheng , LI, Gunan , TAN, Jie , ZHANG, Ying , WANG, Mingfeng
IPC分类号： C22C21/02 , C22C1/10 , C22C1/06 , B22D17/00
摘要： The present invention provides a high thermal conductivity aluminum alloy, which comprises the following components in percentage by weight: Al: 80% - 90%; Si: 6.5% - 8.5%; Fe: 0.2% - 0.5%; Zn: 0.8% - 3%; V: 0.03% - 0.05%; Sr: 0.01% - 1%; graphene: 0.02% - 0.08%. In the high thermal conductivity aluminum alloy of the present invention, alloying elements including Si, Fe, and Zn are optimized; Sr, V, graphene, among others are added. The amount of each component is controlled so that they coordinate to ALLOW high thermal conductivity, good casting performance and excellent semi-solid die-casting property. Graphene is introduced to the high thermal conductivity aluminum alloy of the present invention to exploit the good thermal conductivity of graphene, allowing the formation of a high thermal conductivity aluminium alloy.

5. 发明授权

EP3360623B1 SEMISOLID PRODUCTION METHOD AND SYSTEM USING CONTINUOUS DIE CASTING TECHNIQUE 有权
公开(公告)号：EP3360623B1
公开(公告)日：2020-04-15
申请号：EP17778585.4
申请日：2017-03-21
申请人： Zhuhai Runxingtai Electrical Co., Ltd
发明人： REN, Huaide , ZHANG, Ying , WANG, Jicheng , LI, Gunan
IPC分类号： B22D17/00 , B22D1/00 , B22D17/32 , B22D21/04 , C22B9/10

6. 发明公开

EP3360623A1 SEMISOLID PRODUCTION METHOD AND SYSTEM USING CONTINUOUS DIE CASTING TECHNIQUE 有权
公开(公告)号：EP3360623A1
公开(公告)日：2018-08-15
申请号：EP17778585.4
申请日：2017-03-21
申请人： Zhuhai Runxingtai Electrical Co., Ltd
发明人： REN, Huaide , ZHANG, Ying , WANG, Jicheng , LI, Gunan
IPC分类号： B22D17/00
CPC分类号： B22D17/32 , B22D1/00 , B22D17/00 , B22D17/007 , B22D21/04 , C22B9/103
摘要： Provided is a semisolid production method using a continuous die casting technique, and execution of the following steps of the method is controlled by a central controller (1): controlling a nucleating agent preparation device (2) to produce a solid nucleating agent and to deliver the solid nucleating agent to a liquid slurry holding container of a semisolid slurry preparation device (3); controlling the semisolid slurry preparation device (3) to produce a semisolid slurry and to deliver the semisolid slurry to a semisolid die casting machine (4); and controlling the semisolid die casting machine to perform die casting. A semisolid production system using a continuous die casting technique comprises a nucleating agent preparation device, a semisolid slurry preparation device, a semisolid die casting machine, and a central controller. The production method and the production system can reduce the time required for preparing a slurry, increase a solid content in the slurry, provide refined and uniform globular grains, improve efficiency in preparing a semisolid slurry, enable quality of the semisolid slurry to remain stable, and realize stable production of an integrated semisolid device using a die casting technique.

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