JPS61259855A - Gas venting device in casting - Google Patents
Gas venting device in castingInfo
- Publication number
- JPS61259855A JPS61259855A JP60103555A JP10355585A JPS61259855A JP S61259855 A JPS61259855 A JP S61259855A JP 60103555 A JP60103555 A JP 60103555A JP 10355585 A JP10355585 A JP 10355585A JP S61259855 A JPS61259855 A JP S61259855A
- Authority
- JP
- Japan
- Prior art keywords
- cooling water
- mold
- gas
- passage
- casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
本発明は、アルミ合金等の製品を鋳造する場合において
、浴湯や中子から発生するガスを強制的に除去するガス
抜き装置に関し、詳しくは、型冷却水を利用してガス抜
きを行うものに関する。The present invention relates to a degassing device that forcibly removes gas generated from bath water and cores when casting products such as aluminum alloys, and more specifically, a degassing device that uses mold cooling water to degas the product. Regarding.
アルミ合金等の製品を多量に鋳造する場合には、一般に
繰返し使用可能な金型が用いられる。そして金型は冷え
にくいことから、金型には型冷却のための冷却水通路が
設けられ、冷却水を循環するようになっている。また金
型を使用すると、その内部に形成されたキャビティの周
囲が金型により密閉され、鋳造時に浴湯から発生したガ
スが抜けなくなって、鋳造欠陥を招く。そこで例えば、
中子をけい砂と合成樹脂による鋳型にし、この中子の個
所から浴′＆オよび中子に生じるガスを抜く方法が用い
られている。
ここで、上記ガス抜きに関し、中子の個所に単にガス抜
き通路を設けて自然排出するだけではガス抜き効果が不
充分であり、大型の製品には適用できない。そこで、ガ
ス抜き効果を向上するため、強制的にガス抜きを行って
いる。
従来、上記強制的なガス抜きに関しては、例えば特公昭
５６−４０６５９号公報の先行技術があり、真空ポンプ
によりガスを吸引することが提案されている。そして型
の内部に燃焼室を設けて、ガス中の未燃焼有毒成分を燃
焼除去して無毒化するようになっている。When casting large quantities of products such as aluminum alloys, reusable molds are generally used. Since the mold does not cool easily, the mold is provided with a cooling water passage for cooling the mold, and the cooling water is circulated. Further, when a mold is used, the cavity formed inside the mold is sealed, and gas generated from the bath water during casting cannot escape, leading to casting defects. So, for example,
A method is used in which the core is made into a mold made of silica sand and synthetic resin, and the bath and gas generated in the core are vented from the core. Here, regarding the above-mentioned gas venting, simply providing a gas venting passage in the core and allowing the gas to be naturally discharged will not have a sufficient gas venting effect and cannot be applied to large-sized products. Therefore, in order to improve the degassing effect, degassing is forcibly performed. Conventionally, regarding the above-mentioned forced degassing, there is a prior art, for example, Japanese Patent Publication No. 56-40659, in which it has been proposed to suction the gas with a vacuum pump. A combustion chamber is installed inside the mold to burn off the unburned toxic components in the gas, making it non-toxic.
ところで、上記先行技術によると、真空ポンプを用いて
いるためその駆動源も必要となり、規準が大型化する。
また先行技術の場合は、型をヒータで加熱してシェル鋳
型の製品を焼成するものであるが、本発明は、金型を冷
却してアルミ合金等の鋳造を行うものを対象としており
、型内部に燃焼室を設けることは考えられない。
本発明は、このような点に鑑みて創作されたもので、型
冷却装置を備えた鋳型において、鋳造時の浴温、中子か
ら生じるガスを簡単かつ効果的に扱き、ガスの大気への
放出を防止することが可能な鋳造時のガス抜き装置を提
供することを目的としている。By the way, according to the above-mentioned prior art, since a vacuum pump is used, a driving source for the vacuum pump is also required, which increases the size of the standard. In addition, in the case of the prior art, the mold is heated with a heater to sinter the shell mold product, but the present invention is aimed at casting aluminum alloy etc. by cooling the mold. It is unthinkable to provide a combustion chamber inside. The present invention was created in view of these points, and it is possible to easily and effectively handle the bath temperature during casting and the gas generated from the core in a mold equipped with a mold cooling device, and to prevent the gas from entering the atmosphere. It is an object of the present invention to provide a degassing device during casting that can prevent emissions.
上記目的を達成するため、本発明は、ポンプ。
水槽、冷却水通路から成る型冷却装置が装備された鋳型
において、上記冷却水通路の途中に、冷却水の流れによ
り吸引作用する水流ポンプと吸引ｍを調節するバイパス
通路とから成る真空装置を設け、上記金型におけるキャ
ビティの中子の個所と上記水流ポンプをガス抜き通路で
連通した構成になっている。In order to achieve the above object, the present invention provides a pump. In a mold equipped with a mold cooling device consisting of a water tank and a cooling water passage, a vacuum device consisting of a water pump that performs a suction action by the flow of cooling water and a bypass passage that adjusts the suction m is installed in the middle of the cooling water passage. The core of the cavity in the mold is connected to the water pump through a gas vent passage.
上記構成に基づき、本発明は、型冷却装置の冷却水通路
に冷却水の流れを利用して真空装置が設けられ、鋳造時
にはこの真空装置により鋳型の浴湯および中子で生じる
ガスを強制的に抜くようになる。また真空装置の水流ポ
ンプで吸引されたガスは、冷却水に混入して運ばれるの
であり、こうしてガス抜き用の専用の装置が不要となり
、ガスは冷却水に混入してその放出防止対策を容易に行
うことが可能となる。Based on the above configuration, the present invention includes a vacuum device that utilizes the flow of cooling water in the cooling water passage of the mold cooling device, and during casting, this vacuum device forcibly removes the bath water of the mold and the gas generated in the core. You will be able to pull it out. In addition, the gas sucked in by the water pump of the vacuum equipment is mixed with the cooling water and transported, thus eliminating the need for a dedicated device for degassing, and making it easy to take measures to prevent gas from being released as it mixes with the cooling water. It becomes possible to do so.
以下、本発明の実施例を図面に基づいて説明する。
図面において、符＠１はアルミ合金の例えばシリンダブ
ロックの製品をダイキャスト鋳造する鋳型であり、金型
かうなる下型２．横型３および上型４により構成されて
いる。ここで製品のキャビティ５は、主として中間の横
型３に形成され、上型４に濶口６が設けられ、キャビテ
ィ５の内部のウォータジャケットに相当する部分に、け
い砂と合成樹脂の鋳型から成る中子７が設けられる。
上記鋳型１には型冷韻装＠８が設けられ、この型冷却装
Ｗ１８は、ポンプ９からの冷却水通路１０が型冷却水通
路１１に連通し、型冷却水通路１１からの冷却水通路１
２が、密閉した冷却水槽１３に連通して循環系路を成す
。型冷ｐＨ装Ｍ８の冷部水槽１３には、パルプを有して
補給通路１Ｇ、ガス排出通路１７が設けである。また°
型冷却水通路１２に対して、パルプ１４を有するバイパ
ス通路１５が設けである。
そこで上記型冷却装ａｉ８において、冷却水通路１２の
途中に真空装置２０が設けられる。この真空装置２０は
、通路中に水流ポンプ２１が設けられ、冷却水の流れに
よるエジェクタ効果で吸引作用するようになっており、
水流ポンプ２１には、バルブ２２を有するバイパス通路
２３が設けられる。そして鋳型１の中子７の個所から水
流ポンプ２１に、ガス抜き通路２４が連通している。
次いで、このように構成された装置の全体の作用につい
て説明する。
アルミダイキャスト鋳造では、型冷却装置８のポンプ９
を駆動し、水槽１３の冷却水を通路１０．１１゜１２を
経て循環させて、鋳型１の湯口６からキャピテイ５に浴
湯を供給して先ず何度か試し鋳造を行い、バイパス通路
１５のバルブ１４の開度をＷＪ整して鋳型１を冷却する
型冷却水通路１１を流れる冷却水量を調整することによ
り、鋳型１を適正温度にしてから鋳造を行う。こうして
冷却水が流れると、真空装置２０の水流ポンプ２１にお
いて噴流することで吸引作用し、これによりキャビティ
５の浴湯および中子７から生じたガスが、ガス扱き通路
２４を経て強制的に抜かれる。そしてこのガスは、水流
ポンプ２１において冷却水中に混入して水槽１３に排出
され、ガス排出通路１７から取出される。
こうして、冷却水による型を適正温度に保つための冷却
作用の過程においてガス抜きが一緒に行間度を大きくす
ると、冷却水は鋳型１をバイパスして型冷却作用が減じ
、バルブ１４の開度を調整することにより、型を適正温
度に保持することができる。また、バイパス通路２３の
バルブ２２の開度を大きくすると、逆に水流ポンプ２１
の流量と共に吸引作用が減じるようになり、こうしてバ
ルブ１４゜２２の開度により、型の温度と共にガス抜き
効果が任意に調節される。
一方、ガスは冷却水に混入するため、冷却水をガスの可
溶液体にすれば、ガスは大気中に放出しなくなる。Embodiments of the present invention will be described below based on the drawings. In the drawing, the symbol @1 is a mold for die-casting an aluminum alloy product, such as a cylinder block, and the lower mold 2. It is composed of a horizontal mold 3 and an upper mold 4. Here, the cavity 5 of the product is mainly formed in the intermediate horizontal mold 3, the upper mold 4 is provided with a spout 6, and the part corresponding to the water jacket inside the cavity 5 is made of a mold made of silica sand and synthetic resin. A core 7 is provided. The mold 1 is provided with a mold cooling device @8, in which a cooling water passage 10 from the pump 9 communicates with the mold cooling water passage 11, and a cooling water passage from the mold cooling water passage 11 communicates with the mold cooling water passage 11. 1
2 communicates with the closed cooling water tank 13 to form a circulation path. The cold part water tank 13 of the cold pH device M8 is provided with a supply passage 1G containing pulp and a gas discharge passage 17. Also °
A bypass channel 15 with pulp 14 is provided for the mold cooling water channel 12 . Therefore, in the mold cooling system ai8, a vacuum device 20 is provided in the middle of the cooling water passage 12. In this vacuum device 20, a water pump 21 is provided in the passage, and a suction action is performed by the ejector effect caused by the flow of cooling water.
The water pump 21 is provided with a bypass passage 23 having a valve 22 . A gas vent passage 24 communicates with the water pump 21 from the core 7 of the mold 1. Next, the overall operation of the device configured as described above will be explained. In aluminum die casting, the pump 9 of the mold cooling device 8
The cooling water in the water tank 13 is circulated through the passages 10, 11 and 12, and the bath water is supplied from the sprue 6 of the mold 1 to the cavity 5, and trial casting is performed several times. Casting is performed after the mold 1 is brought to an appropriate temperature by adjusting the opening degree of the valve 14 to adjust the amount of cooling water flowing through the mold cooling water passage 11 that cools the mold 1. When the cooling water flows in this way, the water pump 21 of the vacuum device 20 generates a suction effect by jetting it, and as a result, the gas generated from the bath water in the cavity 5 and the core 7 is forcibly removed through the gas handling passage 24. Ru. This gas is mixed into the cooling water in the water pump 21 and discharged into the water tank 13, and then taken out from the gas discharge passage 17. In this way, in the process of the cooling action of the cooling water to keep the mold at an appropriate temperature, if the line spacing is increased along with gas venting, the cooling water will bypass the mold 1 and the mold cooling action will be reduced, causing the opening of the valve 14 to be reduced. By adjusting the temperature, the mold can be maintained at an appropriate temperature. Moreover, if the opening degree of the valve 22 of the bypass passage 23 is increased, the water flow pump 21
The suction effect decreases with the flow rate of the mold, and thus the degassing effect can be arbitrarily adjusted as well as the temperature of the mold by the opening degree of the valves 14 and 22. On the other hand, since gas is mixed into the cooling water, if the cooling water is made into a soluble form of gas, the gas will not be released into the atmosphere.
以上述べてきたように、本発明によれば、型冷却装置を
利用して浴温や中子から乗じるガスを強制的に抜（よう
に構成されているので、専用のポンプや動力源が不要で
装置が簡素化し、コスト。
管理の点でも有利である。
また、型を適正温度に保つための型冷却とガス抜きを同
時に行うので、ガス扱きを忘れることがなく、ガス抜き
も効果的に行われる。
真空装置は構造が簡単で小型であり、既製の型冷却装置
にも取付けることが可能である。
ガスを冷却水に溶かすと、大気に放出しなくなって後処
理が容易になり、作業環境も向上する。As described above, according to the present invention, the mold cooling device is used to forcibly remove the bath temperature and the multiplication gas from the core, so there is no need for a dedicated pump or power source. This simplifies the equipment and costs. It is also advantageous in terms of management. In addition, mold cooling and degassing to keep the mold at the appropriate temperature are performed at the same time, so you do not forget to handle the gas, and degassing is also effective. Vacuum equipment has a simple and compact structure, and can be installed in ready-made mold cooling equipment. Dissolving the gas in cooling water prevents it from being released into the atmosphere, making post-processing easier and making work easier. The environment will also improve.
図面は本発明によるガス抜き装置の実施例を示す全体の
構成因である。
１・・・鋳型、５・・・キャビティ、７・・・中子、８
・・・型冷却装置、９・・・ポンプ、１０．１１．１２
・・・冷却水通路、１３・・・水槽、２０・・・真空装
置、２１・・・水流ポンプ、２２・・・バルブ、２３・
・・バイパス通路、２４・・・ガス抜き通路。The drawing shows the overall structure of an embodiment of the degassing device according to the invention. 1... Mold, 5... Cavity, 7... Core, 8
... type cooling device, 9... pump, 10.11.12
...Cooling water passage, 13...Water tank, 20...Vacuum device, 21...Water pump, 22...Valve, 23...
... Bypass passage, 24... Gas vent passage.
Claims (1)
れた鋳型において、 上記冷却水通路の途中に、冷却水の流れにより吸引作用
する水流ポンプと吸引量を調節するバイパス通路とから
成る真空装置を設け、 上記金型におけるキャビティの中子の個所と上記水流ポ
ンプをガス抜き通路で連通した鋳造時のガス抜き装置。[Claims] In a mold equipped with a mold cooling device consisting of a pump, a water tank, and a cooling water passage, a water flow pump that performs a suction action by the flow of cooling water and a bypass that adjusts the amount of suction are installed in the middle of the cooling water passage. A gas venting device during casting, wherein a vacuum device comprising a passage is provided, and a core portion of the cavity in the mold is connected to the water pump through the gas venting passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60103555A JPH0724914B2 (en) | 1985-05-14 | 1985-05-14 | Degassing device during casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60103555A JPH0724914B2 (en) | 1985-05-14 | 1985-05-14 | Degassing device during casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61259855A true JPS61259855A (en) | 1986-11-18 |
| JPH0724914B2 JPH0724914B2 (en) | 1995-03-22 |
Family
ID=14357064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60103555A Expired - Lifetime JPH0724914B2 (en) | 1985-05-14 | 1985-05-14 | Degassing device during casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724914B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01150429A (en) * | 1987-12-09 | 1989-06-13 | Nissan Motor Co Ltd | Method for holding collapsible staying core |
| JP2012006055A (en) * | 2010-06-25 | 2012-01-12 | Kannetsu:Kk | Mold degassing device and method thereof |
| CN105598365A (en) * | 2016-03-29 | 2016-05-25 | 黄毅 | Dual-surface multifunctional combined casting die |
| CN105689681A (en) * | 2014-12-12 | 2016-06-22 | 加特可株式会社 | Mould cooling device |
| CN108080596A (en) * | 2017-11-30 | 2018-05-29 | 江门市兆业科技有限公司 | A kind of metal die production shaping device |
| CN108817322A (en) * | 2018-08-12 | 2018-11-16 | 繁昌县亘通智能装备有限公司 | A kind of high thermal effect Metallic Casting Die & Mold |
| CN112191819A (en) * | 2020-10-14 | 2021-01-08 | 苏州墁道金属材料科技有限公司 | Zinc alloy die casting machine |
| CN112276047A (en) * | 2020-08-31 | 2021-01-29 | 马鞍山强森维基机械设备制造有限责任公司 | High-efficient casting equipment of machine parts |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369691A (en) * | 2019-06-24 | 2019-10-25 | 盐城永鑫机械有限公司 | A kind of casting of front axle housing body condensing unit and condensation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4736976U (en) * | 1971-05-06 | 1972-12-23 |
-
1985
- 1985-05-14 JP JP60103555A patent/JPH0724914B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4736976U (en) * | 1971-05-06 | 1972-12-23 |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01150429A (en) * | 1987-12-09 | 1989-06-13 | Nissan Motor Co Ltd | Method for holding collapsible staying core |
| JP2012006055A (en) * | 2010-06-25 | 2012-01-12 | Kannetsu:Kk | Mold degassing device and method thereof |
| CN105689681A (en) * | 2014-12-12 | 2016-06-22 | 加特可株式会社 | Mould cooling device |
| CN105598365A (en) * | 2016-03-29 | 2016-05-25 | 黄毅 | Dual-surface multifunctional combined casting die |
| CN108080596A (en) * | 2017-11-30 | 2018-05-29 | 江门市兆业科技有限公司 | A kind of metal die production shaping device |
| CN108817322A (en) * | 2018-08-12 | 2018-11-16 | 繁昌县亘通智能装备有限公司 | A kind of high thermal effect Metallic Casting Die & Mold |
| CN112276047A (en) * | 2020-08-31 | 2021-01-29 | 马鞍山强森维基机械设备制造有限责任公司 | High-efficient casting equipment of machine parts |
| CN112191819A (en) * | 2020-10-14 | 2021-01-08 | 苏州墁道金属材料科技有限公司 | Zinc alloy die casting machine |
| CN112191819B (en) * | 2020-10-14 | 2021-08-03 | 苏州墁道金属材料科技有限公司 | Zinc alloy die casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0724914B2 (en) | 1995-03-22 |
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