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公开(公告)号：US11511335B2
公开(公告)日：2022-11-29
申请号：US17681950
申请日：2022-02-28
发明人： Yuki Ariyama , Masahiro Yamada , Satoru Kimura , Kenji Yuki
摘要： A gas suction device of a casting mold includes an overflow portion, a suction path, and a shut-off valve. The shut-off valve includes a housing section for housing a valve element. An upstream-side housing portion of the housing section has an arc-shaped outer peripheral edge. The overflow portion includes an introduction path which is continuous with the upstream-side housing portion and guides gas to the upstream-side housing portion. At a predetermined location on the outer peripheral edge, the introduction path is connected to the upstream-side housing portion along the tangential direction of the outer peripheral edge.
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公开(公告)号：US20220307607A1
公开(公告)日：2022-09-29
申请号：US17681954
申请日：2022-02-28
发明人： Kenji Yuki , Masahiro Yamada , Satoru Kimura , Nobuo Kawauchi , Yu Shindo
摘要： A cap member is used in a shut-off valve including a valve head in which a through hole is formed, the cap member including: a cap member main body screwed into the through hole; a first engaging portion for engaging with a first tool for screwing the cap member main body into the valve head; a second engaging portion formed inside the cap member main body to engage with a second tool for unscrewing the cap member main body from the valve head; and a wall portion covering the second engaging portion so that the second engaging portion is not exposed when the cap member is viewed from the first engaging portion toward the second engaging portion.
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公开(公告)号：US12036603B2
公开(公告)日：2024-07-16
申请号：US18284558
申请日：2022-04-27
发明人： Satoru Kimura , Kenji Yuki , Ryo Onishi , Nobuo Kawauchi , Gaku Kazama
摘要： Provided is a casting mold with which it is possible to apply air-blow to a bottom part of a groove in a core without moving forward/backward the core relative to the mold body. This casting mold is provided with a first mold and a second mold for forming, between the first mold and the second mold, a cavity used to produce a cast article, wherein the second mold has a second mold body and a core, which protrudes from the second mold body in a first direction toward the first mold and is used to forms a hollow part in the cast article, the core is provided with a groove part that opens in the first direction and is recessed in a second direction opposite from the first direction, and the second mold is provided with an air supply flow passage for supplying air for blowing toward a bottom part of the groove part.
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公开(公告)号：US20240189892A1
公开(公告)日：2024-06-13
申请号：US18284558
申请日：2022-04-27
发明人： Satoru Kimura , Kenji Yuki , Ryo Onishi , Nobuo Kawauchi , Gaku Kazama
摘要： Provided is a casting mold with which it is possible to apply air-blow to a bottom part of a groove in a core without moving forward/backward the core relative to the mold body. This casting mold is provided with a first mold and a second mold for forming, between the first mold and the second mold, a cavity used to produce a cast article, wherein the second mold has a second mold body and a core, which protrudes from the second mold body in a first direction toward the first mold and is used to forms a hollow part in the cast article, the core is provided with a groove part that opens in the first direction and is recessed in a second direction opposite from the first direction, and the second mold is provided with an air supply flow passage for supplying air for blowing toward a bottom part of the groove part.
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公开(公告)号：US11549592B2
公开(公告)日：2023-01-10
申请号：US17681954
申请日：2022-02-28
发明人： Kenji Yuki , Masahiro Yamada , Satoru Kimura , Nobuo Kawauchi , Yu Shindo
摘要： A cap member is used in a shut-off valve including a valve head in which a through hole is formed, the cap member including: a cap member main body screwed into the through hole; a first engaging portion for engaging with a first tool for screwing the cap member main body into the valve head; a second engaging portion formed inside the cap member main body to engage with a second tool for unscrewing the cap member main body from the valve head; and a wall portion covering the second engaging portion so that the second engaging portion is not exposed when the cap member is viewed from the first engaging portion toward the second engaging portion.
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公开(公告)号：US20220314305A1
公开(公告)日：2022-10-06
申请号：US17681940
申请日：2022-02-28
发明人： Kenji Yuki , Ryo Onishi , Satoru Kimura
摘要： A casting mold is provided with a cavity portion and an overflow portion, and the overflow portion is connected to a gas flow path (suction path). A valve (an on-off valve, a shut-off valve) is provided between the gas flow path and the overflow portion. A heating method for a casting mold includes a step of setting the pressure in the cavity portion to a second pressure by sucking gas in the overflow portion and in the cavity portion while the valve is kept open for a second time period shorter than a first time period during casting. The heating method further includes a step of heating the casting mold by supplying molten metal into the cavity portion set at the second pressure, and solidifying the molten metal.
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7.发明申请公开(公告)号：US20210379651A1
公开(公告)日：2021-12-09
申请号：US17277084
申请日：2018-09-21
发明人： Nobuo Kawauchi , Satoru Kimura , Ryo Onishi , Gaku Kazama , Toshihide Sunada
摘要： A decompression path conductance factor calculation device 110 obtains a cavity pressure change characteristic representing a pressure change characteristic of a cavity portion 30 from an exhaust speed of a decompression device 70, a cavity conductance factor, an overflow conductance factor, a decompression path conductance factor, and respective volumes of inside spaces of a cavity portion 30, an overflow portion 50, and a decompression path 60, obtains a decompression path pressure change characteristic representing a pressure change characteristic of the decompression path 60 from the exhaust speed of the decompression device 70, the volume of the inside space of the decompression path 60, and the decompression path conductance factor, and obtains the decompression path conductance factor such that a difference between respective approximate curves representing the obtained cavity pressure change characteristic and the obtained decompression path pressure change characteristic becomes a threshold value or less.
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公开(公告)号：US20240157434A1
公开(公告)日：2024-05-16
申请号：US18284557
申请日：2022-02-28
发明人： Satoru Kimura , Kenji Yuki , Ryo Onishi , Masashi Fujikawa
CPC分类号： B22D18/08 , B22D11/161 , B22D17/2227 , B22D18/06
摘要： Provided are a casting die inspection method and a casting device, the method including: a step for acquiring the ultimate pressure in a cavity section, at the time when a prescribed vacuuming time has elapsed since evacuation the inside of the cavity section of the casting die was started; a step for evacuating the inside of the cavity section and acquiring an increased pressure in the cavity section that has increased during a prescribed stop time, at the time when the prescribed stop time has elapsed since the evacuation was stopped; a step for evaluating a first sealing property of the casting device on the basis of the ultimate pressure; and a step for evaluating a second sealing property of the casting device on the basis of the increased pressure.
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9.发明授权公开(公告)号：US11738388B2
公开(公告)日：2023-08-29
申请号：US17277084
申请日：2018-09-21
发明人： Nobuo Kawauchi , Satoru Kimura , Ryo Onishi , Gaku Kazama , Toshihide Sunada
摘要： A decompression path conductance factor calculation device 110 obtains a cavity pressure change characteristic representing a pressure change characteristic of a cavity portion 30 from an exhaust speed of a decompression device 70, a cavity conductance factor, an overflow conductance factor, a decompression path conductance factor, and respective volumes of inside spaces of a cavity portion 30, an overflow portion 50, and a decompression path 60, obtains a decompression path pressure change characteristic representing a pressure change characteristic of the decompression path 60 from the exhaust speed of the decompression device 70, the volume of the inside space of the decompression path 60, and the decompression path conductance factor, and obtains the decompression path conductance factor such that a difference between respective approximate curves representing the obtained cavity pressure change characteristic and the obtained decompression path pressure change characteristic becomes a threshold value or less.
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公开(公告)号：US11638951B2
公开(公告)日：2023-05-02
申请号：US17681940
申请日：2022-02-28
发明人： Kenji Yuki , Ryo Onishi , Satoru Kimura
摘要： A casting mold is provided with a cavity portion and an overflow portion, and the overflow portion is connected to a gas flow path (suction path). A valve (an on-off valve, a shut-off valve) is provided between the gas flow path and the overflow portion. A heating method for a casting mold includes a step of setting the pressure in the cavity portion to a second pressure by sucking gas in the overflow portion and in the cavity portion while the valve is kept open for a second time period shorter than a first time period during casting. The heating method further includes a step of heating the casting mold by supplying molten metal into the cavity portion set at the second pressure, and solidifying the molten metal.
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