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公开(公告)号：US10675675B2
公开(公告)日：2020-06-09
申请号：US16204003
申请日：2018-11-29
Applicant: CITIC Dicastal CO., LTD.
Inventor： Lin Zhu , Changhai Li , Hongbiao Li , Baojun Shi
Abstract: A water-cooled mold for low-pressure casting of an aluminum alloy wheel includes an upper mold, a lower mold and a side mold which surround a cavity of aluminum alloy, in which a cooling insert is embedded into a side mold frame of the side mold; an upper parting surface, a lower parting surface and a side parting surface of the cooling insert are respectively in contact parting with the side mold frame, the side parting surface includes a front zone and a rear straight zone, and a gap of 1.5-2.5 mm is formed between the rear straight zone and the side mold frame.
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公开(公告)号：US20170291212A1
公开(公告)日：2017-10-12
申请号：US15483037
申请日：2017-04-10
Applicant: CITIC Dicastal CO., LTD
Inventor： Lin Zhu , Changhai Li , Hongbiao Li , Yong Li
Abstract: A tandem water spot cooling device for a top die. The device includes a spot cooling device main body, a lower sealing plate, an outer-ring circular track, an inner-ring serpentine passage, outer-ring flow dividing baffles, inner-ring flow dividing baffles, outer-ring through holes, inner-ring through holes, bolt hole reservation positions, stripper rod reservation positions, and water inlet and outlet connection through holes.
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公开(公告)号：US09707620B2
公开(公告)日：2017-07-18
申请号：US14993390
申请日：2016-01-12
Applicant: CITIC Dicastal CO., LTD
Inventor： Lin Zhu , Changhai Li , Hongbiao Li , Fengyi Chang , Yongning Wang , Zhihua Zhu
Abstract: The present invention provides a side-mold water spot-cooling device for cooling a casting mold, a manufacturing method thereof and a method for cooling a casting mold by the device. The technical solution of the present invention has the following technical effects: an open-type backwater structure is employed, not only eliminating the back pressure from the backwater process without adding the supercharging equipment, but also reducing the investment costs of the equipment; reducing requirements for the sealing elements, thereby reducing costs for fittings; greatly reducing use of the joints and reducing the manufacturing, maintenance difficulty and costs of the mold; and the structure is substantially the same as that of the air-cooled mold and is easy for promotion.
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公开(公告)号：US10220437B2
公开(公告)日：2019-03-05
申请号：US15337712
申请日：2016-10-28
Applicant: CITIC Dicastal CO., LTD
Inventor： Lin Zhu , Changhai Li , Hongbiao Li , Yong Li
Abstract: The present invention provides a water cooled mold for casting aluminum alloy wheels and a manufacturing method thereof. The water cooled mold is provided with first-type water cooling channels with high heat exchange efficiency and second-type water cooling channels with low heat exchange efficiency. The first-type water cooling channels are concave grooves through which cooling water flows, and a cooling surface of the mold is in contact with open surfaces of the concave grooves. The second-type water cooling channels are grooves with stainless steel pipes, and the stainless steel pipes are in contact with the cooling surface of the mold. The second-type water cooling channels are installed on mold portions corresponding to wheel window positions of a cavity, and the first-type water cooling channels are installed on mold portions corresponding to spokes, flanges and rims of the cavity. The water cooled mold of the present invention is capable of accurately controlling a direction and a range of cooling within a three-dimensional space; the use of a thermal insulating groove is omitted so that the mold can be manufactured more simply and the service life of the mold can be prolonged; the cooling efficiency is high and resources are saved; and the whole device is simple to manufacture and low in cost.
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公开(公告)号：US20160368042A1
公开(公告)日：2016-12-22
申请号：US15184090
申请日：2016-06-16
Applicant: CITIC Dicastal CO., LTD
Inventor： Peng Zhou , Yongning Wang , Zhihua Zhu , Changhai Li , Hongbiao Li , Xiwei Xue , Yong Li , Gui Wang , Longtao Kang , Donghui Zhang
Abstract: The invention provides a split-type mold for wheel casting, the mold having an upper die, a split-type water-cooling side die and a lower die, and the split-type water-cooling side die is divided into four pieces along a circumferential direction of the wheel mold. A thermal deformation arc compensation surface is machined on ¼ arc portion of each split-type water-cooling lower side die, and a compensation surface is machined on key portions of 45-degree matching surfaces of adjacent split-type water-cooling upper side dies. The side die can effectively solve the problems such as untight matching between the matching surfaces, flashes of the matching surfaces and aluminum sticking and the like due to the thermal deformation and non-homogeneous expansion and shrinkage of the two portions of the split-type water-cooling side die.
Abstract translation: 本发明提供了一种用于车轮铸造的分体式模具，该模具具有上模，分体型水冷侧模和下模，并且分型水冷侧模沿着 车轮模具的圆周方向。 在每个分体式水冷下侧模具的1/4圆弧部分加工热变形电弧补偿表面，并且在相邻的分流式水冷上侧模具的45度匹配表面的关键部分上加工补偿表面 。 侧模可以有效地解决匹配表面之间的不匹配，匹配表面闪光和铝粘附等问题，这是由于分开式水的两部分的热变形和不均匀的膨胀和收缩 冷却侧模。
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Patent Agency Ranking
公开(公告)号：US10456822B2
公开(公告)日：2019-10-29
申请号：US15483037
申请日：2017-04-10
Applicant: CITIC Dicastal CO., LTD
Inventor： Lin Zhu , Changhai Li , Hongbiao Li , Yong Li
Abstract: A tandem water spot cooling device for a top die. The device includes a spot cooling device main body, a lower sealing plate, an outer-ring circular track, an inner-ring serpentine passage, outer-ring flow dividing baffles, inner-ring flow dividing baffles, outer-ring through holes, inner-ring through holes, bolt hole reservation positions, stripper rod reservation positions, and water inlet and outlet connection through holes.
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公开(公告)号：US10058913B2
公开(公告)日：2018-08-28
申请号：US15609613
申请日：2017-05-31
Applicant: CITIC Dicastal CO., LTD.
Inventor： Kaiqing Wang , Hongbiao Li , Xu Wang , Changhai Li
CPC classification number: B22C9/28 , B22D18/04 , H05K999/99
Abstract: A low-pressure casting bottom mold for an aluminum alloy hub is provided. The low-pressure casting bottom mold for the aluminum alloy hub is composed of an upper surface facing a cavity and a lower surface facing a die casting platform, wherein the bottom mold lower surface facing the die casting platform comprises an iron sheet cover, the iron sheet cover is fixed at a position, corresponding to a wheel spoke, of the bottom mold lower surface, and a sealed space is formed between the iron sheet cover and the bottom mold lower surface in a surrounding manner; the iron sheet cover comprises air inlets at one side close to a wheel center and air outlets at one side close to a rim; and the air inlets are connected with air tubes.
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公开(公告)号：US10010931B2
公开(公告)日：2018-07-03
申请号：US14993215
申请日：2016-01-12
Applicant: CITIC Dicastal CO., LTD
Inventor： Lin Zhu , Changhai Li , Hongbiao Li , Hongwei Zhao , Yongning Wang , Zhihua Zhu
Abstract: The present invention provides a water spot cooling apparatus, a water spot cooling method for casting a mold, a method for manufacturing the water spot cooling apparatus and use of the water spot cooling apparatus. The technical solution of the present invention has the following advantages: spot cooling of multiple spots can be realized on each side mold by using only one water inlet pipeline, thereby saving the water cooling pipeline and facilitating field installation; the water inlet and outlet are integrated on a main body, thereby facilitating field implementation; the whole apparatus is easy to process, convenient to maintain, and low in manufacturing cost; and it is not restricted by the product structure and facilitates promotion.
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公开(公告)号：US20170361371A1
公开(公告)日：2017-12-21
申请号：US15609613
申请日：2017-05-31
Applicant: CITIC Dicastal CO.,LTD.
Inventor： Kaiqing Wang , Hongbiao Li , Xu Wang , Changhai Li
CPC classification number: B22C9/28 , B22D18/04 , H05K999/99
Abstract: A low-pressure casting bottom mold for an aluminum alloy hub is provided. The low-pressure casting bottom mold for the aluminum alloy hub is composed of an upper surface facing a cavity and a lower surface facing a die casting platform, wherein the bottom mold lower surface facing the die casting platform comprises an iron sheet cover, the iron sheet cover is fixed at a position, corresponding to a wheel spoke, of the bottom mold lower surface, and a sealed space is formed between the iron sheet cover and the bottom mold lower surface in a surrounding manner; the iron sheet cover comprises air inlets at one side close to a wheel center and air outlets at one side close to a rim; and the air inlets are connected with air tubes.
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公开(公告)号：US20170312819A1
公开(公告)日：2017-11-02
申请号：US15581184
申请日：2017-04-28
Applicant: CITIC Dicastal CO., LTD
Inventor： Lu CHEN , Longtao Kang , Xiwei Xue , Hongbiao Li , Kaiqing Wang , Changhai Li
Abstract: An exhausting device of a low-pressure aluminum alloy wheel casting mold, which includes a control mainframe, a connecting line, a gas storage station, a ventilating pipeline, gas inlet plugs, an exhausting plug and the like, the control mainframe is connected with the gas storage station through the connecting line, and the gas storage station is connected with the gas inlet plugs through the ventilating pipeline; the gas inlet plugs are arranged at the bottom mold window; the mold filling process of the high-temperature molten aluminum can be completed in a relatively oxygen-free environment, direct contact between the molten aluminum and oxygen is avoided, and the occurrence probability of the oxidation slag inclusion defect in the wheel casting process is effectively controlled, so that the internal quality of the casting is remarkably improved.
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