WO2011089711A1 - 傾斜式重力鋳造装置 - Google Patents
傾斜式重力鋳造装置 Download PDFInfo
- Publication number
- WO2011089711A1 WO2011089711A1 PCT/JP2010/050812 JP2010050812W WO2011089711A1 WO 2011089711 A1 WO2011089711 A1 WO 2011089711A1 JP 2010050812 W JP2010050812 W JP 2010050812W WO 2011089711 A1 WO2011089711 A1 WO 2011089711A1
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- WIPO (PCT)
- Prior art keywords
- mold
- molten metal
- gate
- gas
- casting apparatus
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/006—Casting by filling the mould through rotation of the mould together with a molten metal holding recipient, about a common axis
Definitions
- the present invention relates to a casting apparatus that forms a molded product by pouring a molten metal into a mold, and in particular, an inclined gravity that obtains a molded product by pouring the molten metal in a bowl-shaped member into the mold and solidifying according to the tilt of the mold.
- the present invention relates to a casting apparatus.
- Gravity casting equipment that casts molten metal by pouring the molten metal into the mold only by the gravity of the molten metal from the spout provided at the upper part of the mold, can increase the cooling rate at the time of casting, and is a precise casting with good casting surface and dimensional accuracy. Manufacturable, especially with excellent pressure resistance and mechanical properties.
- a gravity casting apparatus needs to form a feeder that compensates for volume reduction when solidified on the upper part of the molded product, and a time for cooling and solidifying the feeder is required in addition to the solidification time of the molded product. .
- the amount of molten metal and the melting cost are further required by forming the feeder, and the processing cost for cutting the feeder is also required.
- a low-pressure casting apparatus is an example of a casting apparatus that requires almost no feeder.
- This low-pressure casting machine puts the molten metal in a sealed container, pressurizes the molten metal surface with a gas body having a relatively low pressure of 1 atm or less, pushes the molten metal through the hot water supply pipe in the direction opposite to gravity, and is installed on it. Then, molten metal is poured into the mold to form a molded product (Non-Patent Document 1). According to this, since the molten metal is pushed up by applying pressure, there is little volume reduction at the time of solidification, and no molten metal is required.
- a gravity casting apparatus in which after the molten metal is poured into the mold, gas is supplied into the mold to pressurize the molten metal in the mold.
- this gravity casting apparatus for example, as shown in FIG. 12, a hopper device 102 is fixed to a sprue 101 formed in a mold 100. The molten metal 103 is stored in the hopper device 102, and the mold 100 is tilted.
- the gravity casting apparatus 105 which does not require a feeder can be realized.
- the above-described gravity casting apparatus 105 pressurizes the gas from the pouring gate 101 that supplies the molten metal 103, it is difficult to adjust the flow rate when the gas is pressurized. Moreover, since the molten metal 103 is supplied from the gate 101 and the air is discharged, if the supply speed of the molten metal 103 is too fast, the molten metal 103 covers the gate 101 and the air in the cavity 104 may not be discharged. Therefore, it is necessary to slow down the inclination speed.
- the present invention provides an inclined gravity casting apparatus that does not require a feeder, and does not require slowing the inclination speed, and can appropriately gas pressurize the molten metal in the mold.
- the purpose is to do.
- the inclined gravity casting apparatus of the present invention forms a cavity that forms a molded product, and includes a mold that can be tilted between an inverted state and a standing state that rises approximately 90 degrees from the inverted state, and a molten metal.
- a gate mold formed with a gate that guides to the cavity, a bowl-shaped member that stores molten metal and pours the molten metal into the gate according to the tilt of the mold, and is provided between the gate and the cavity of the mold, Shielding means capable of opening and shielding the gate, and a gas valve provided on an upper part of the standing mold, and allowing the molten metal to flow out of the mold and allow gas to pass therethrough.
- a gas supply means capable of supplying a high-pressure gas to the gas port.
- the inclined gravity casting apparatus of the present invention is characterized by further comprising a cooling means capable of cooling the mold.
- the inclined gravity casting apparatus of the present invention is characterized in that a plurality of the gas ports are provided with a constant opening.
- the inclined gravity casting apparatus of the present invention is characterized in that the molded product is a tire wheel.
- the inclined gravity casting apparatus of the present invention is characterized in that the gate is separable into at least a plurality.
- the gate is shielded by the shielding means, and the high pressure gas is supplied from the gas port to the mold by the gas supply means.
- template can be gas-pressurized. Accordingly, there is no need to provide a feeder, so that the casting time can be shortened by the time for cooling and solidifying the feeder, and the manufacturing cost of the molded product can be reduced. Further, it is possible to reduce the amount of molten metal for forming the feeder, the melting cost, and the processing cost for cutting the feeder.
- the air in the mold can be discharged to the outside through the gas port. You can speed up.
- the molten metal poured into the mold can be cooled by the cooling means, so that the hardness of the molded product can be further increased. Moreover, solidification time can be shortened because it can cool in this way, and casting cost can be reduced more.
- a plurality of gas ports are provided at regular intervals, so that gas can be evenly pressurized with the molten metal. Therefore, the inconvenience that the molten metal near a gas port dents and hardens
- the inclined gravity casting apparatus of the present invention since the molded product is an annular tire wheel, it was difficult to uniformly pressurize the gas with the conventional gravity casting apparatus. Since they are provided at regular intervals, the gas can be uniformly pressurized to the molten metal.
- the gate can be separated into a plurality of pieces, so that, for example, even when there is too much molten metal and solidifies in the gate, it can be easily removed by separating the gate. it can.
- Sectional drawing which shows an example of the gravity casting apparatus of this invention.
- the perspective view which cut off the near side half in the vertical plane in order to explain the composition of the gate mold, the shielding means, and the upper mold.
- the perspective view which shows the state which the shielding means obstruct
- the perspective view which cut off the near side half by the perpendicular surface, in order to explain the composition of a side mold and a lower mold.
- Sectional drawing which shows the inclination-type gravity casting apparatus of the inversion state which the sprue opened facing the side.
- Sectional drawing which shows the state in the middle of inclining an inclination type gravity casting apparatus by operating a tilting apparatus.
- Sectional drawing which shows the inclination command gravity casting apparatus of the standing state which the pouring gate opened upwards. A state where the gate is closed by sliding the shielding means will be described.
- the inclined gravity casting apparatus 1 that casts an aluminum alloy tire wheel (molded product 6) will be described as an example.
- the inclined gravity casting apparatus 1 may be other types such as an engine cylinder of an automobile, for example.
- the member may be cast.
- the inclined gravity casting apparatus 1 forms a cavity 2 that forms a molded product 6 by connecting a plurality of decomposable hardware with a hydraulic cylinder. Formed on the upper part of the standing mold 3 and receiving the molten metal 5, the casting mold 3 capable of tilting to the standing state raised about 90 degrees, the bowl-shaped member 4 storing the molten metal 5 such as an aluminum alloy, for example.
- the mold 3 includes an upper mold 31, a lower mold 33, and a side mold 32 that can be divided into four pieces.
- the movements of the upper mold 31, the lower mold 33, and the side mold 32 are controlled by a hydraulic jack (not shown), and when forming the mold 3, the hydraulic jacks are brought into close contact with each other. Is controlling.
- the mold 3 is fixed to a tilting device (not shown) together with the hydraulic jack, and can tilt up to at least 90 degrees.
- the upper mold 31 is formed in a bowl shape so that the outer surface 31a forms the shape of the inner peripheral surface of the rim of the tire wheel (molded product 6) and the inner surface of the disk. Yes.
- a pouring die 7 having a pouring gate 71 into which the molten metal 5 can be poured is fixed to the upper end of the upper die 31, and the hook-like member 4 is further secured to the pouring die 7.
- a gas port 9 is annularly arranged at an upper portion of the upper mold 31 with a predetermined interval.
- the lower mold 33 is formed such that the upper side forms the shape of the outer surface of the disk of the tire wheel (molded product 6), and is a hub provided so as to protrude in the center.
- the upper mold 31 is joined by the hole forming portion 33a and the wheel fixing bolt hole forming portion 33b provided around the hub hole forming portion 33a.
- the lower mold 33 is provided with an air-cooling type cooling means 33c, so that the molten metal 5 can be cooled during casting.
- the side mold 32 has a substantially cylindrical shape whose inner periphery forms the shape of the outer peripheral surface of the rim of the tire wheel (molded product 6), and is divided into four substantially equal parts. The lower portion of the side mold 32 is fixed in contact with the outer periphery of the lower mold 33.
- the bowl-shaped member 4 is formed in a bowl-like shape, and is fixed to the upper end of the upper mold 31 of the mold 3 while being tilted by 90 degrees when the mold 3 is held upright.
- the gate mold 7 is a metal member provided with a gate 71 that receives the molten metal 5 and guides the molten metal 5 into the cavity 2 in the mold 3.
- the gate mold 7 can be further divided into an upper member 72, an intermediate member 73, and a lower member 74, which are formed by fixing them with bolts, for example. .
- the gate mold 7 is fixed to the upper mold 31 with bolts. Since it can be divided into three in this way, as shown in FIG. 11, for example, even when there is too much molten metal 5 and solidifies in the gate 71, it can be easily removed by separating the gate mold 7. .
- the shielding means 8 is a metal member that is slidably installed between the gate mold 7 and the cavity 2 of the mold 3 as shown in FIGS.
- the connecting portion 81 to which the shielding means slide hydraulic jack 85 can be connected the main body portion 82 formed with a through hole 84 communicating with the pouring gate 71 of the pouring die 7 in the center, and the through hole 84 serving as the pouring die 7.
- a stopper 83 that can be fixed in alignment with the gate 71.
- the through hole 84 of the shielding means 8 is aligned with the gate 71 of the gate mold 7 so that the gate mold 7 and the cavity 2 communicate with each other. Therefore, the molten metal 5 received by the gate die 7 from the bowl-shaped member 4 can be guided to the cavity 2.
- the shielding means 8 is pushed in using the shielding means sliding hydraulic jack 85, the gate 71 of the gate mold 7 is shielded as shown in FIG. As a result, the cavity 2 does not communicate with the gate 71, and the gas in the cavity 2 does not flow out of the gate 71.
- the surface of the shielding means 8 that contacts the lower member 74 of the gate mold 7 is formed with a slight downward slope toward the through hole 84 so that the vicinity of the through hole 84 is most depressed.
- the surface of the lower member 74 of the gate mold 7 that contacts the shielding means 8 is also slightly inclined toward the gate 71 so that the vicinity of the gate 71 swells most.
- the gas port 9 is an elongated hole that communicates the cavity 2 with the outside formed in the upper mold 31 separately from the gate mold 7.
- a gas valve 92 is provided on the cavity 2 side of the gas port 9 to allow gas to pass and to prevent the molten metal 5 from flowing out.
- the gas valve 92 is a cylindrical metal part with a bottom, and a plurality of narrow slits 92 a are formed at the bottom.
- a gas such as air can freely pass through the slit 92a, but the molten metal 5 such as an aluminum alloy has a large surface tension and is difficult to adhere to other objects. As a result, the molten metal 5 does not pass through the gas valve 92.
- the gas supply means 91 supplies a rare gas such as helium or argon or air to the cavity 2 through the gas port 9 at a high pressure.
- the mold 3 is held in an inverted state by controlling a hydraulic jack (not shown).
- the inverted state is a state in which the mold 3 is inclined so that the portion provided with the pouring gate 71 faces sideways, and the pouring gate 71 is held so as to be positioned below the cavity 2.
- the bowl-shaped member 4 is fixed to the gate mold 7 with the upper part opened.
- the shielding means 8 is held such that the gate 71 of the gate mold 7 is opened.
- an aluminum alloy melt 5 controlled at a predetermined temperature with a handle not shown is poured into the bowl-like member 4 to accumulate the melt 5.
- a tilting device (not shown) is controlled to tilt the mold 3 gradually until it reaches the standing state.
- the molten metal 5 stored in the bowl-shaped member 4 passes through the gate 71 of the gate mold 7 and further passes through the through hole 84 of the shielding means 8 and is poured into the cavity 2 to stand upright.
- the melt 5 fills the cavity 2 as shown in FIG.
- the shielding means sliding hydraulic jack 85 is controlled to push the shielding means 8, thereby shielding between the gate 71 and the cavity 2 of the gate mold 7.
- gas supply pipes are connected to all the gas ports 9 formed in the upper mold 31, and the high-pressure gas is supplied into the cavity 2 by controlling the gas supply means 91.
- the cooling means 33 c provided in the lower mold 33 is operated to cool the molten metal 5 in the cavity 2.
- a hydraulic jack (not shown) is controlled to pull the upper mold 31 away from the molded product 6 and the side mold 32 in four directions. Then, the molded product 6 can be obtained by removing the molded product 6 from the lower mold 33.
- the inclined gravity casting apparatus 1 of the present embodiment when the mold 3 is tilted and the molten metal 5 is poured from the bowl-shaped member 4 into the gate 71, the air in the cavity 2 is passed through the gas port 9. Therefore, it is sufficient that only the molten metal 5 can be injected from the pouring gate 71, and the molten metal 5 can be poured into the entire pouring gate 71, so that the inclination speed of the mold 3 can be increased. Further, by supplying a high pressure gas from the gas port 9 into the cavity 2 by the gas supply means 91, the molten metal 5 in the cavity 2 can be pressurized with gas, and there is no need to provide a feeder.
- the casting time can be shortened by the time for cooling and solidifying the feeder, and the manufacturing cost of the molded product 6 can be reduced. Further, it is possible to reduce the amount of molten metal for forming the feeder, the melting cost, and the processing cost for cutting the feeder.
- the molten metal 5 injected into the mold 3 can be cooled by the air-cooling type cooling means 33c formed in the lower mold 33, the hardness of the molded product 6 can be increased and less material can be used. It is possible to cast the molded product 6 that exhibits the required strength with a light weight. In addition, the ability to cool in this way can shorten the solidification time, thereby further reducing the casting cost.
- the gas port 9 Since the gas port 9 is continuously connected to the upper mold 31 at regular intervals, the gas can be evenly pressurized by the molten metal 5 and the inconvenience that the molten metal 5 near the gas port 9 is depressed and hardened is also suppressed. can do.
- the inclined gravity casting apparatus 1 according to the present invention can be suitably used as, for example, a casting apparatus for casting an aluminum alloy molded product.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
2 キャビティ
3 鋳型
4 椀状部材
5 溶湯
6 成形品
7 湯口金型
8 遮蔽手段
9 ガス口
33c 冷却手段
71 湯口
Claims (5)
- 成形品を形作るキャビティを形成し、倒設状態と、該倒設状態から略90度起き上がった立設状態と、の間で傾動可能な鋳型と、
溶湯を前記キャビティに案内する湯口が形成された湯口金型と、
溶湯を貯留するとともに前記鋳型の傾動に従って前記湯口に溶湯を注ぎ込む椀状部材と、
前記湯口と前記鋳型のキャビティとの間に設けられ、前記湯口を開放及び遮蔽可能な遮蔽手段と、
前記立設状態の前記鋳型の上部に設けられ、前記溶湯が前記鋳型の外部への流出を抑止するとともに、ガスを通過可能にするガス弁を具備したガス口と、
前記ガス口に高圧ガスを供給可能なガス供給手段と、を備えることを特徴とする傾斜式重力鋳造装置。 - 前記鋳型を冷却可能な冷却手段をさらに備えることを特徴とする請求項1に記載の傾斜式重力鋳造装置。
- 前記ガス口は、互いに一定の開けて複数備えることを特徴とする請求項1又は請求項2に記載の傾斜式重力鋳造装置。
- 前記成形品は、タイヤホイールであることを特徴とする請求項1から請求項3のいずれかに記載の傾斜式重力鋳造装置。
- 前記湯口は少なくとも複数に分離可能であることを特徴とする請求項1から請求項4のいずれかに記載の傾斜式重力鋳造装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/050812 WO2011089711A1 (ja) | 2010-01-22 | 2010-01-22 | 傾斜式重力鋳造装置 |
JP2010522045A JPWO2011089711A1 (ja) | 2010-01-22 | 2010-01-22 | 傾斜式重力鋳造装置 |
US13/521,149 US20120325424A1 (en) | 2010-01-22 | 2010-01-22 | Tilt type gravity molding device |
CN2010800616634A CN102712041A (zh) | 2010-01-22 | 2010-01-22 | 倾斜式重力铸造装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/050812 WO2011089711A1 (ja) | 2010-01-22 | 2010-01-22 | 傾斜式重力鋳造装置 |
Publications (1)
Publication Number | Publication Date |
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WO2011089711A1 true WO2011089711A1 (ja) | 2011-07-28 |
Family
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Family Applications (1)
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PCT/JP2010/050812 WO2011089711A1 (ja) | 2010-01-22 | 2010-01-22 | 傾斜式重力鋳造装置 |
Country Status (4)
Country | Link |
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US (1) | US20120325424A1 (ja) |
JP (1) | JPWO2011089711A1 (ja) |
CN (1) | CN102712041A (ja) |
WO (1) | WO2011089711A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013193100A (ja) * | 2012-03-19 | 2013-09-30 | Ryobi Ltd | 傾動式重力鋳造装置及び傾動式重力鋳造法 |
JP2014121719A (ja) * | 2012-12-21 | 2014-07-03 | Kawasaki Heavy Ind Ltd | 鋳型の冷却装置および冷却方法 |
WO2015128927A1 (ja) * | 2014-02-25 | 2015-09-03 | 株式会社森川金型製作所 | 傾斜式重力鋳造装置 |
JP2016068113A (ja) * | 2014-09-30 | 2016-05-09 | 日立金属株式会社 | 鋳造物品の製造方法 |
KR101794812B1 (ko) * | 2012-07-05 | 2017-11-07 | 현대자동차주식회사 | 중력 주조 방법 |
Families Citing this family (7)
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CN103546784B (zh) * | 2013-10-09 | 2017-12-08 | 深圳市九洲电器有限公司 | 机顶盒 |
CN103716665B (zh) * | 2013-12-19 | 2017-05-17 | 深圳市九洲电器有限公司 | 一种机顶盒及其制备方法 |
AT515345A1 (de) * | 2014-01-03 | 2015-08-15 | Fill Gmbh | Verfahren zum Gießen eines Gussteils |
WO2017063993A1 (en) * | 2015-10-14 | 2017-04-20 | Aleris Rolled Products Germany Gmbh | Method and device for casting metal alloy ingots |
CN108127101B (zh) * | 2017-12-26 | 2019-07-09 | 中国兵器工业第五九研究所 | 一种大型薄壁铝合金铸件石膏型铸造方法 |
CN108772538A (zh) * | 2018-08-21 | 2018-11-09 | 浙江东新动力有限公司 | 全自动阀门铸造生产线 |
ES2975585T3 (es) | 2021-03-29 | 2024-07-09 | Nemak Sab De Cv | Dispositivo de colada para colada por gravedad de vertido basculante |
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JPH05309467A (ja) * | 1992-05-12 | 1993-11-22 | Kiriyuu Kikai Kk | 湯口分割式加圧鋳造方法 |
JPH07299556A (ja) * | 1994-05-10 | 1995-11-14 | Enkei Kk | 車両用ホイールの鋳造方法及び鋳造装置 |
JP2006035240A (ja) * | 2004-07-23 | 2006-02-09 | Enkei Kk | 自動昇温機能を有する鋳造装置 |
JP2009214149A (ja) * | 2008-03-11 | 2009-09-24 | Yokohama Rubber Co Ltd:The | 鋳造装置 |
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JPH04187342A (ja) * | 1990-11-21 | 1992-07-06 | Hitachi Ltd | 鋳造金型 |
JP2005324226A (ja) * | 2004-05-14 | 2005-11-24 | Yokohama Rubber Co Ltd:The | 重力鋳造方法及びその装置 |
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2010
- 2010-01-22 US US13/521,149 patent/US20120325424A1/en not_active Abandoned
- 2010-01-22 JP JP2010522045A patent/JPWO2011089711A1/ja active Pending
- 2010-01-22 CN CN2010800616634A patent/CN102712041A/zh active Pending
- 2010-01-22 WO PCT/JP2010/050812 patent/WO2011089711A1/ja active Application Filing
Patent Citations (4)
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JPH05309467A (ja) * | 1992-05-12 | 1993-11-22 | Kiriyuu Kikai Kk | 湯口分割式加圧鋳造方法 |
JPH07299556A (ja) * | 1994-05-10 | 1995-11-14 | Enkei Kk | 車両用ホイールの鋳造方法及び鋳造装置 |
JP2006035240A (ja) * | 2004-07-23 | 2006-02-09 | Enkei Kk | 自動昇温機能を有する鋳造装置 |
JP2009214149A (ja) * | 2008-03-11 | 2009-09-24 | Yokohama Rubber Co Ltd:The | 鋳造装置 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013193100A (ja) * | 2012-03-19 | 2013-09-30 | Ryobi Ltd | 傾動式重力鋳造装置及び傾動式重力鋳造法 |
KR101794812B1 (ko) * | 2012-07-05 | 2017-11-07 | 현대자동차주식회사 | 중력 주조 방법 |
JP2014121719A (ja) * | 2012-12-21 | 2014-07-03 | Kawasaki Heavy Ind Ltd | 鋳型の冷却装置および冷却方法 |
WO2015128927A1 (ja) * | 2014-02-25 | 2015-09-03 | 株式会社森川金型製作所 | 傾斜式重力鋳造装置 |
US9186722B2 (en) | 2014-02-25 | 2015-11-17 | Morikawa Kanagata Co., Ltd. | Tilt type gravity molding device |
KR20160116064A (ko) | 2014-02-25 | 2016-10-06 | 가부시키가이샤 모리카와 카나가타 세이사쿠쇼 | 경사식 중력 주조 장치 |
EP3112053A4 (en) * | 2014-02-25 | 2017-10-11 | Morikawa Kanagata Co. Ltd | Inclined gravity casting device |
JP2016068113A (ja) * | 2014-09-30 | 2016-05-09 | 日立金属株式会社 | 鋳造物品の製造方法 |
Also Published As
Publication number | Publication date |
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US20120325424A1 (en) | 2012-12-27 |
CN102712041A (zh) | 2012-10-03 |
JPWO2011089711A1 (ja) | 2013-05-20 |
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