JPH0528547U - Vacuum die casting water heater - Google Patents
Vacuum die casting water heaterInfo
- Publication number
- JPH0528547U JPH0528547U JP8534391U JP8534391U JPH0528547U JP H0528547 U JPH0528547 U JP H0528547U JP 8534391 U JP8534391 U JP 8534391U JP 8534391 U JP8534391 U JP 8534391U JP H0528547 U JPH0528547 U JP H0528547U
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- injection sleeve
- pressure
- mold
- holding furnace
- 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.)
- Pending
Links
- 238000004512 die casting Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 79
- 238000002347 injection Methods 0.000 claims abstract description 48
- 239000007924 injection Substances 0.000 claims abstract description 48
- 238000003860 storage Methods 0.000 claims abstract description 12
- 230000003247 decreasing effect Effects 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 5
- 239000000155 melt Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
(57)【要約】
【目的】 保持炉でも溶湯の脱ガスを積極的に行ってダ
イカスト鋳物中にブローホール、ピンホール等の欠陥を
生じる余地をなくすことができる真空ダイカストの給湯
装置を提供する。
【構成】 内部に溶湯収納部２を有する密閉された保持
炉１と、この保持炉１内の溶湯収納部２に一端部が挿入
された注湯管５と、この注湯管５の他端部が溶湯充填部
７に連通して接続され、当該溶湯充填部７に供給された
溶湯Ｍも前進チップ８により金型１０のキャビティ１１
内に射出可能な射出スリーブ６と、前記保持炉１に接続
されて内部圧力を増減可能な第１圧力制御装置１５と、
射出スリーブ６に接続されて当該射出スリーブ６の溶湯
充填部７の圧力を増減可能な第２圧力制御装置１８と、
金型１０に接続されてキャビティ１１内の圧力を増減可
能な第３圧力制御装置２１とを備えた。
(57) [Summary] [Purpose] To provide a hot water supply device for vacuum die castings that can positively degas the molten metal even in a holding furnace and eliminate the possibility of defects such as blowholes and pinholes in the diecast casting. . [Structure] A closed holding furnace 1 having a molten metal storage part 2 therein, a pouring pipe 5 having one end inserted into the molten metal storage part 2 in the holding furnace 1, and the other end of the pouring pipe 5. Part is connected to the melt filling part 7, and the melt M supplied to the melt filling part 7 is also moved to the cavity 11 of the mold 10 by the advancing tip 8.
An injection sleeve 6 that can be injected into the inside, and a first pressure control device 15 that is connected to the holding furnace 1 and that can increase and decrease the internal pressure,
A second pressure control device 18 connected to the injection sleeve 6 and capable of increasing or decreasing the pressure of the molten metal filling portion 7 of the injection sleeve 6;
A third pressure control device 21 connected to the mold 10 and capable of increasing and decreasing the pressure in the cavity 11 was provided.
Description
【０００１】[0001]
この考案は、真空ダイカストの給湯装置に関するものである。 The present invention relates to a hot water supply device for vacuum die casting.
【０００２】[0002]
一般に、精密な金型鋳物を多量に製造する方法としてダイカスト法が普及して いるが、このダイカスト法では、溶湯を金型のキャビティ内に高速かつ高圧で射 出充填するため、金型のキャビティ内からガスを自然排気していたのでは溶湯と ガスとの置換が不完全となり、溶湯内に残存ガスを巻き込んでダイカスト鋳物中 にブローホール、ピンホール等の欠陥を生じるおそれがある。 Generally, the die casting method is widely used as a method for manufacturing a large amount of precision die castings.However, in this die casting method, the molten metal is injected into the cavity of the die at high speed and high pressure. If the gas was naturally exhausted from the inside, the replacement of the molten metal with the gas would be incomplete, and the residual gas may be entrained in the molten metal, causing defects such as blowholes and pinholes in the die-cast casting.
【０００３】 そこで、従来、金型のキャビティ内からガスを完全に排気した状態で溶湯の射 出充填を行うために、例えば、特開昭６４−６２２６３号公報に記載されている ように、真空吸引により金型のキャビティ内及び射出装置の溶湯充填部内からガ スを完全に排気すると共に減圧して、その吸引作用により保持炉から溶湯を注湯 管を経て射出スリーブの溶湯充填部内に導入し、しかる後、射出スリーブ内の前 進チップで溶湯充填部を圧縮させて溶湯を金型のキャビティ内に射出充填するよ うにした真空ダイカストの給湯装置が開発されていた。Therefore, conventionally, in order to perform the injection and filling of the molten metal in a state where the gas is completely exhausted from the cavity of the mold, for example, as disclosed in JP-A-64-62263, a vacuum is used. The gas is completely exhausted from the cavity of the mold and the molten metal filling part of the injection device by suction and decompressed, and the molten metal is introduced from the holding furnace into the molten metal filling part of the injection sleeve through the pouring pipe by the suction action. After that, a vacuum die casting hot water supply device was developed in which the molten metal filling part was compressed by the forward tip in the injection sleeve to inject and fill the molten metal into the cavity of the mold.
【０００４】[0004]
しかしながら、この給湯装置では、大気下にある保持炉内の溶湯を注湯管を経 て射出スリーブの溶湯充填部内に導入するため、溶湯を重力により金型に流し込 む金型鋳造法に比べて溶湯中のガス含有量が多くなり、ダイカスト鋳物中にブロ ーホール、ピンホール等の欠陥を生じるおそれがあるという不都合を免れなかっ た。 However, in this hot water supply device, the molten metal in the holding furnace under the atmosphere is introduced into the molten metal filling part of the injection sleeve through the pouring pipe, so compared with the mold casting method in which the molten metal is poured into the mold by gravity. As a result, the gas content in the molten metal increased, which could lead to defects such as blowholes and pinholes in the die-cast casting.
【０００５】 この考案は前記課題を解決するためになしたもので、保持炉でも溶湯の脱ガス を積極的に行ってダイカスト鋳物中にブローホール、ピンホール等の欠陥を生じ る余地をなくすことができる真空ダイカストの給湯装置を提供することを目的と する。The present invention has been made to solve the above-mentioned problems, and eliminates the possibility of producing defects such as blowholes and pinholes in die castings by positively degassing the molten metal even in a holding furnace. An object of the present invention is to provide a hot water supply device for vacuum die casting.
【０００６】[0006]
この考案に係る真空ダイカストの給湯装置は、内部に溶湯収納部を有する密閉 された保持炉と、この保持炉内の溶湯収納部に一端部が挿入された注湯管と、こ の注湯管の他端部が溶湯充填部に連通して接続され、当該溶湯充填部に供給され た溶湯を前進チップにより金型のキャビティ内に射出可能な射出スリーブと、前 記保持炉に接続されて内部圧力を増減可能な第１圧力制御装置と、射出スリーブ に接続されて当該射出スリーブの溶湯充填部の圧力を増減可能な第２圧力制御装 置とを備えたものである。 A hot water supply device for a vacuum die casting according to the present invention includes a closed holding furnace having a molten metal storage part therein, a pouring pipe having one end inserted into the molten metal storage part in the holding furnace, and this pouring pipe. The other end is connected to the molten metal filling part and is connected to the molten metal filling part. The injection sleeve that can inject the molten metal supplied to the molten metal filling part into the cavity of the mold by the advancing tip is connected to the holding furnace as described above. It is provided with a first pressure control device capable of increasing / decreasing the pressure and a second pressure control device connected to the injection sleeve and capable of increasing / decreasing the pressure of the molten metal filling portion of the injection sleeve.
【０００７】[0007]
第１圧力制御装置により真空吸引して保持炉内を減圧した状態で溶湯収納部内 の溶湯を溶解保持する。 The molten metal in the molten metal storage part is melted and held in a state where the pressure in the holding furnace is reduced by vacuum suction by the first pressure control device.
【０００８】 保持炉内を減圧状態に保持したまま、第２圧力制御装置により真空吸引して射 出スリーブの溶湯充填部内を保持炉内の圧力よりも低い圧力まで減圧し、その差 圧で保持炉内の溶湯を射出スリーブの溶湯充填部内に導入充填し、射出スリーブ 内で前進チップを摺動前進させて当該射出スリーブの溶湯充填部内の溶湯を前記 金型のキャビティ内に射出充填する。While the inside of the holding furnace is maintained in a depressurized state, the second pressure control device performs vacuum suction to reduce the inside of the molten metal filling portion of the ejection sleeve to a pressure lower than the pressure inside the holding furnace, and to maintain the pressure difference. The molten metal in the furnace is introduced and filled into the molten metal filling portion of the injection sleeve, and the advancing tip is slid forward in the injection sleeve to inject and fill the molten metal in the molten metal filling portion of the injection sleeve into the cavity of the mold.
【０００９】[0009]
以下この考案の一実施例を図１により説明する。 An embodiment of the present invention will be described below with reference to FIG.
【００１０】 保持炉１の内部には黒鉛ルツボ製の溶湯収納部２と、当該溶湯収納部２内の金 属材料を溶解し溶湯を加熱保温する加熱保温用ヒータ３とが設けられている。ま た、この保持炉１の上部開口部は蓋部材４により開閉可能に蓋被されて密閉され 、炉内は気密状態になるようにしてある。Inside the holding furnace 1, a molten metal container 2 made of a graphite crucible and a heater 3 for heating and keeping heat to melt and heat the metal material in the molten metal container 2 are provided. In addition, the upper opening of the holding furnace 1 is covered with a lid member 4 so as to be openable and closable, so that the inside of the furnace is kept airtight.
【００１１】 この保持炉１内の溶湯収納部２には注湯管５の一端部が挿入され、この注湯管 ５の他端部は射出スリーブ６の溶湯充填部７に連通して接続されている。One end of a pouring pipe 5 is inserted into the molten metal storage part 2 in the holding furnace 1, and the other end of the pouring pipe 5 is connected to the molten metal filling part 7 of the injection sleeve 6 so as to communicate therewith. ing.
【００１２】 射出スリーブ６内には前進チップ８と後退チップ９が図示しない移動装置によ りそれぞれ摺動可能に嵌入され、これらの前進チップ８と後退チップ９との間が 溶湯充填部７とされている。A forward tip 8 and a retreat tip 9 are slidably fitted into the injection sleeve 6 by a moving device (not shown), and a space between the forward tip 8 and the retreat tip 9 is filled with a molten metal filling portion 7. Has been done.
【００１３】 この射出スリーブ６には金型１０のキャビティ１１内に臨ませて供給口部１２ が設けられ、後退チップ９は前進チップ８より供給口部１２側に配置されている 。The injection sleeve 6 is provided with a supply port 12 facing the inside of the cavity 11 of the mold 10, and the retreat tip 9 is arranged closer to the supply port 12 than the advance tip 8.
【００１４】 前進チップ８は保持炉１と射出スリーブ６を接続する注湯管５の接続開口部１ ３を射出スリーブ６の溶湯充填部７内への溶湯充填時に開き、金型１０のキャビ ティ１１内への射出時に閉じる弁体であり、図面では注湯管５の接続開口部１３ を開いた状態を示している。The advancing tip 8 opens the connection opening 13 of the pouring pipe 5 that connects the holding furnace 1 and the injection sleeve 6 when the molten metal is filled in the molten metal filling portion 7 of the injection sleeve 6, and the cavity 10 of the mold 10 is opened. It is a valve body that closes when it is injected into 11, and the drawing shows a state in which the connection opening 13 of the pouring pipe 5 is opened.
【００１５】 後退チップ９は射出スリーブ６から金型１０のキャビティ１１への供給口部１ ２を射出スリーブ６の溶湯充填部７内への溶湯充填時に閉じ、金型１０のキャビ ティ１１内への射出時に開く弁体であり、図面では供給口部１２を閉じいてる状 態を示している。The retreat tip 9 closes the supply port portion 12 from the injection sleeve 6 to the cavity 11 of the mold 10 when the molten metal is filled in the molten metal filling portion 7 of the injection sleeve 6, and enters the cavity 11 of the mold 10. Is a valve body that is opened at the time of injection, and the drawing shows the state in which the supply port 12 is closed.
【００１６】 前記保持炉１の蓋部材４には接続配管１４を介して第１圧力制御装置１５が接 続されており、保持炉１の内部圧力を増減可能となっている。A first pressure control device 15 is connected to the lid member 4 of the holding furnace 1 via a connecting pipe 14 so that the internal pressure of the holding furnace 1 can be increased or decreased.
【００１７】 射出スリーブ６には接続配管１６により真空バルブ１７を介して第２圧力制御 装置１８が接続されており、射出スリーブ６の溶湯充填部７内の圧力を増減可能 となっている。A second pressure control device 18 is connected to the injection sleeve 6 through a vacuum valve 17 by a connection pipe 16 so that the pressure in the molten metal filling portion 7 of the injection sleeve 6 can be increased or decreased.
【００１８】 また、金型１０のキャビティ１１内には接続配管１９により真空バルブ２０を 介して第３圧力制御装置２１が接続されており、当該キャビティ１１内の圧力を 増減可能となっている。Further, a third pressure control device 21 is connected to the inside of the cavity 11 of the mold 10 via a vacuum valve 20 by a connecting pipe 19 so that the pressure inside the cavity 11 can be increased or decreased.
【００１９】 次に、以上のように構成された溶湯装置は次の手順で作動させる。 第１圧力制御装置１５により接続配管１４を介し真空吸引して保持炉１内を減 圧した状態で加熱保温用ヒータ３により溶湯収納部２内の金属材料を溶解し加熱 保持する。これによって溶湯Ｍ中の水素ガス等は発散し、非金属介在物もガス化 して発散する。 保持炉１内を減圧状態に保持したまま、第２圧力制御装置１８により接続配管 １６及び真空バルブ１７を介し真空吸引して射出スリーブ６の溶湯充填部７内を 保持炉１内の圧力よりも低い圧力まで減圧する。これによって保持炉１の溶湯収 納部２内の溶湯Ｍが注湯管５を経て射出スリーブ６の溶湯充填部７内に静かに導 入充填される。その充填完了直前に真空バルブ１７を閉じて接続配管１６に溶湯 Ｍが入らないようにする。 第３圧力制御装置２１により接続配管１９及び真空バルブ２０を介し真空吸引 して金型１０のキャビティ１１内を減圧した後、真空バルブ２０を閉じる。 射出スリーブ６の溶湯充填部７を容積を変えることなく、つまり前進チップ８ と後退チップ９を同一速度で同一距離だけ供給口部１２側に移動させて射出位置 に配置する。これによって後退チップ９で閉じられていた供給口部１２が開いて 金型１０のキャビティ１１内に射出スリーブ６の溶湯充填部７内が連通すると共 に、今まで開いていた注湯管５の接続開口部１３は前進チップ８で閉じられて保 持炉１側との連通が遮断される。 射出スリーブ６内を後退チップ９に対して前進チップ８を摺動前進させて当該 射出スリーブ６の溶湯充填部７を圧縮する。これによって射出スリーブ６の溶湯 充填部７内の溶湯Ｍは供給口部１２を経て金型１０のキャビティ１１内に射出充 填される。 以上の手順で成形した後、型開き、成形品の取出し、型締めが行われる。そし て、前進チップ７と後退チップ９を元の位置に戻した後、真空バルブ１７、２０ を開いて前記の成形手順を繰り返す。Next, the molten metal apparatus configured as described above is operated in the following procedure. The first pressure control device 15 sucks a vacuum through the connection pipe 14 to reduce the pressure in the holding furnace 1, and the heating / warming heater 3 melts and holds the metal material in the molten metal storage portion 2. As a result, hydrogen gas and the like in the molten metal M are released, and non-metallic inclusions are also gasified and released. While the inside of the holding furnace 1 is kept in a depressurized state, the second pressure control device 18 sucks a vacuum through the connecting pipe 16 and the vacuum valve 17 so that the inside of the molten metal filling portion 7 of the injection sleeve 6 becomes lower than the pressure inside the holding furnace 1. Reduce pressure to low pressure. As a result, the molten metal M in the molten metal storage portion 2 of the holding furnace 1 is gently introduced into the molten metal filling portion 7 of the injection sleeve 6 through the pouring pipe 5 and filled. Immediately before the completion of filling, the vacuum valve 17 is closed to prevent the molten metal M from entering the connecting pipe 16. The third pressure control device 21 sucks vacuum through the connection pipe 19 and the vacuum valve 20 to reduce the pressure in the cavity 11 of the mold 10, and then the vacuum valve 20 is closed. The molten metal filling portion 7 of the injection sleeve 6 is arranged at the injection position without changing the volume, that is, the advancing tip 8 and the retreating tip 9 are moved to the supply port 12 side at the same speed and the same distance. As a result, the supply port 12 that was closed by the retracting tip 9 opens, the inside of the cavity 11 of the mold 10 communicates with the inside of the molten metal filling portion 7 of the injection sleeve 6, and the pouring pipe 5 that has been open until now The connection opening 13 is closed by the advancing tip 8 to cut off communication with the holding furnace 1 side. The advance tip 8 is slid forward in the injection sleeve 6 with respect to the retreat tip 9 to compress the molten metal filling portion 7 of the injection sleeve 6. As a result, the molten metal M in the molten metal filling portion 7 of the injection sleeve 6 is injected and filled into the cavity 11 of the mold 10 through the supply port 12. After molding in the above procedure, the mold is opened, the molded product is taken out, and the mold is clamped. Then, after returning the advancing tip 7 and the retracting tip 9 to their original positions, the vacuum valves 17 and 20 are opened and the above-mentioned molding procedure is repeated.
【００２０】 ダイカスト鋳物の変更に伴って射出量が変わる場合、前進チップ８と後退チッ プ９の間隔を調節することにより対応する。When the injection amount changes due to the change of the die cast casting, it is dealt with by adjusting the interval between the advancing tip 8 and the retreating chip 9.
【００２１】 尚、この実施例では、後退チップ９と供給口部１３からなる弁機構を金型１０ と射出スリーブ６との間に介在させ、金型１０側に第３圧力制御装置２１、射出 スリーブ６側に第２圧力制御装置１８を別々に設けた例について説明したが、前 記のような弁機構を設けず金型１０のキャビティ１１内と射出スリーブ６の溶湯 充填部７内を連通させて金型１０側の第３圧力制御装置２１を射出スリーブ６側 の第２圧力制御装置１８で兼ねても良い。また、前進チップ８と注湯管５の接続 開口部１３からなる弁機構を保持炉１と射出スリーブ６との間に介在させた例に ついて説明したが、弁機構は注湯管５の中間部に設けても良いことは言うまでも ない。In this embodiment, a valve mechanism composed of the retreat tip 9 and the supply port 13 is interposed between the mold 10 and the injection sleeve 6, and the third pressure control device 21 and the injection mechanism are provided on the mold 10 side. The example in which the second pressure control device 18 is separately provided on the sleeve 6 side has been described, but the inside of the cavity 11 of the mold 10 and the molten metal filling portion 7 of the injection sleeve 6 are communicated with each other without providing the valve mechanism as described above. Then, the third pressure control device 21 on the die 10 side may also serve as the second pressure control device 18 on the injection sleeve 6 side. Further, the example in which the valve mechanism including the connection opening 13 between the advancing tip 8 and the pouring pipe 5 is interposed between the holding furnace 1 and the injection sleeve 6 has been described. It goes without saying that it may be provided in the department.
【００２２】[0022]
以上の通りこの考案は、内部に溶湯収納部と加熱保温用ヒータを有する保持炉 を密閉構造とし、第１圧力制御装置により保持炉内を減圧できるから、その減圧 状態において溶湯収納部内の溶湯を溶解保持すれば溶湯中のガスを発散させ、か つ非金属介在物をガス化して発散させることができる。しかも、第２圧力制御装 置により射出スリーブの溶湯充填部内を保持炉内の圧力よりも低い圧力まで減圧 すればその差圧で前記のように脱ガスさせた保持炉内の溶湯を射出スリーブの溶 湯充填部内に導入充填できる。このため、射出スリーブの溶湯充填部内から金型 のキャビティ内に溶湯を射出する前に、第３圧力制御装置により金型のキャビテ ィ内からガスを排出し減圧しておけば、金型のキャビティ内に溶湯をスムーズに ガスの巻き込みもなく射出充填できる。従って、ダイカスト鋳物中にブローホー ル、ピンホール等の欠陥を生じることなく高品質の製品を得ることが可能になる と共に、成形手順は容易かつスムーズであり、排気と減圧が同時に行われる点で 成形能率の向上が図れる。 As described above, according to the present invention, the holding furnace having the molten metal storage section and the heater for heating and keeping heat has a closed structure, and the pressure inside the holding furnace can be reduced by the first pressure control device. If dissolved and held, the gas in the molten metal can be released, and the nonmetallic inclusions can be gasified and released. Moreover, if the pressure inside the molten metal filling portion of the injection sleeve is reduced to a pressure lower than the pressure inside the holding furnace by the second pressure control device, the molten metal inside the holding furnace that has been degassed as described above by the differential pressure is It can be introduced and filled into the molten metal filling section. Therefore, before injecting the molten metal from the molten metal filling portion of the injection sleeve into the mold cavity, if the gas is discharged from the mold cavity by the third pressure control device to reduce the pressure, the cavity of the mold will be reduced. The molten metal can be injected and filled smoothly without gas entrapment. Therefore, it is possible to obtain high-quality products without defects such as blowholes and pinholes in the die-cast casting, and the molding procedure is easy and smooth, and the exhaust and depressurization are performed simultaneously. The efficiency can be improved.
【図１】この考案の一実施例を示す概要図である。FIG. 1 is a schematic view showing an embodiment of the present invention.
１ 保持炉 ２ 溶湯収納部 ３ 加熱保温用ヒータ ５ 注湯管 ６ 射出スリーブ ７ 溶湯充填部 ８ 前進チップ １０ 金型 １１ キャビティ １５ 第１圧力制御装置 １８ 第２圧力制御装置 Ｍ 溶湯 DESCRIPTION OF SYMBOLS 1 Holding furnace 2 Molten metal storage part 3 Heat retention heater 5 Molten metal pipe 6 Injection sleeve 7 Molten metal filling part 8 Advance tip 10 Mold 11 Cavity 15 First pressure control device 18 Second pressure control device M Molten metal
Claims (2)
持炉と、この保持炉内の溶湯収納部に一端部が挿入され
た注湯管と、この注湯管の他端部が溶湯充填部に連通し
て接続され、当該溶湯充填部に供給された溶湯を前進チ
ップにより金型のキャビティ内に射出可能な射出スリー
ブと、前記保持炉に接続されて内部圧力を増減可能な第
１圧力制御装置と、射出スリーブに接続されて当該射出
スリーブの溶湯充填部の圧力を増減可能な第２圧力制御
装置とを備えたことを特徴とする真空ダイカストの給湯
装置。1. A sealed holding furnace having a molten metal storage part inside, a pouring pipe having one end inserted into the molten metal storage part in the holding furnace, and the other end of the pouring pipe being filled with molten metal. And a first pressure connected to the holding part and capable of injecting the molten metal supplied to the molten metal filling part into the cavity of the mold by the advancing tip and increasing / decreasing the internal pressure. A hot water supply device for vacuum die casting, comprising: a control device; and a second pressure control device connected to the injection sleeve and capable of increasing or decreasing the pressure of the molten metal filling portion of the injection sleeve.
おいて、射出スリーブ内の前進チップより金型キャビテ
ィへの供給孔側に後退チップを摺動可能に嵌入し、この
後退チップと前記前進チップとの間を射出スリーブの溶
湯充填部とすると共に、前進チップは注湯管の接続端開
口部を射出スリーブの溶湯充填部内への溶湯充填時に開
き、金型のキャビティ内への射出時に閉じる弁体に形成
され、後退チップは金型のキャビティに対する射出スリ
ーブの供給口部を射出スリーブの溶湯充填部内への溶湯
充填時に閉じ、金型のキャビティ内への射出時に開く弁
体に形成されていることを特徴とする真空ダイカストの
給湯装置。2. The hot water supply apparatus for vacuum die castings according to claim 1, wherein a retreat tip is slidably fitted on the supply hole side to the mold cavity from the advancing tip in the injection sleeve. The space between them is the molten metal filling part of the injection sleeve, and the advancing tip opens the connecting end opening of the pouring pipe when the molten metal is filled into the molten metal filling part of the injection sleeve, and closes when it is injected into the mold cavity. The retraction tip is formed on the valve body that closes the supply port of the injection sleeve to the mold cavity when the molten metal is filled into the molten metal filling portion of the injection sleeve and opens when the mold is injected into the cavity. A hot water supply device for vacuum die casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8534391U JPH0528547U (en) | 1991-09-25 | 1991-09-25 | Vacuum die casting water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8534391U JPH0528547U (en) | 1991-09-25 | 1991-09-25 | Vacuum die casting water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0528547U true JPH0528547U (en) | 1993-04-16 |
Family
ID=13856013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8534391U Pending JPH0528547U (en) | 1991-09-25 | 1991-09-25 | Vacuum die casting water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0528547U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005329419A (en) * | 2004-05-18 | 2005-12-02 | Moriyama Giken:Kk | Apparatus and method for forming metal with die casting |
| JP2013066896A (en) * | 2011-09-20 | 2013-04-18 | Toyota Motor Corp | Die casting device |
| CN114160769A (en) * | 2021-12-22 | 2022-03-11 | 苏州三基铸造装备股份有限公司 | High-vacuum die casting equipment free of pressure relief for heat preservation furnace and casting method |
-
1991
- 1991-09-25 JP JP8534391U patent/JPH0528547U/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005329419A (en) * | 2004-05-18 | 2005-12-02 | Moriyama Giken:Kk | Apparatus and method for forming metal with die casting |
| JP2013066896A (en) * | 2011-09-20 | 2013-04-18 | Toyota Motor Corp | Die casting device |
| CN103813870A (en) * | 2011-09-20 | 2014-05-21 | 丰田自动车株式会社 | Die casting device |
| US9061348B2 (en) | 2011-09-20 | 2015-06-23 | Toyota Jidosha Kabushiki Kaisha | Die casting device |
| CN114160769A (en) * | 2021-12-22 | 2022-03-11 | 苏州三基铸造装备股份有限公司 | High-vacuum die casting equipment free of pressure relief for heat preservation furnace and casting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0901853B1 (en) | High vacuum die casting | |
| WO2003002285A3 (en) | Continuous, pressurized mold filling process and casting machine for making automative and aerospace components | |
| JP4275195B2 (en) | Precision casting method and casting equipment | |
| JP3882013B2 (en) | Casting water heater | |
| JPS6440162A (en) | Metal casting method and device opposing gravity by removing air | |
| EP1944105A1 (en) | Casting method | |
| CN108941513A (en) | Metallic pressure conveys shell moulded casting method | |
| JP2015120176A (en) | Aluminum die casting apparatus and aluminum die casting method | |
| US5492165A (en) | Machine for filling sand moulds with non-ferrous metals using a low pressure technique | |
| CN108526412A (en) | A kind of wheel hub casting mould with a plurality of running channel | |
| JPS5772766A (en) | Molding method by vacuum die casting | |
| US3465810A (en) | Apparatus for casting metal | |
| JPH0563264B2 (en) | ||
| JP2000197960A (en) | Casting method and mold for this method | |
| JPH0824990A (en) | Method and apparatus for ending the casting process after gravity-free casting of a particularly oxidizable metal or alloy into a mold, especially a green mold | |
| JPH0957422A (en) | Vacuum casting | |
| JP3794033B2 (en) | Vacuum suction casting method and apparatus | |
| JPH01143753A (en) | Reduced pressure suction precise casting method | |
| CN120325937A (en) | A multifunctional casting machine | |
| JPH0544362U (en) | Die casting machine | |
| CN213437113U (en) | Vacuum supercharging device of complicated thin-wall hollow casting | |
| JP2000158115A (en) | Molten metal supply device and molten metal supply method | |
| JP4184752B2 (en) | Casting method and casting apparatus | |
| JPS62289360A (en) | Method and apparatus for casting | |
| JPS5884661A (en) | Method and device for pressure casting |