JPH0520186B2 - - Google Patents
Info
- Publication number
- JPH0520186B2 JPH0520186B2 JP62170660A JP17066087A JPH0520186B2 JP H0520186 B2 JPH0520186 B2 JP H0520186B2 JP 62170660 A JP62170660 A JP 62170660A JP 17066087 A JP17066087 A JP 17066087A JP H0520186 B2 JPH0520186 B2 JP H0520186B2
- Authority
- JP
- Japan
- Prior art keywords
- casting
- sand
- pedestal
- frame
- model
- 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.)
- Expired - Lifetime
Links
- 238000005266 casting Methods 0.000 claims description 41
- 239000004576 sand Substances 0.000 claims description 40
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- 230000008016 vaporization Effects 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 238000007872 degassing Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は減圧鋳造方法およびその装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vacuum casting method and apparatus.
従来の技術
従来、砂型部を減圧状態にして鋳造する方法と
して、発砲プラスチツク等により形成された消失
性模型を鋳枠の内部に配置し、この消失性模型の
周りに鋳砂を充填して砂型部を形成した後、この
砂型部を減圧状態にして緊密固化することによつ
て崩壊を防止しつつ、消失性模型に金属溶湯を注
入して、消失性模型を溶融気化消失させ、消失性
模型と同じ形状の鋳物を鋳造するものがある。BACKGROUND ART Conventionally, as a method for casting with a sand mold section under reduced pressure, a fugitive model made of foamed plastic or the like is placed inside a casting flask, and casting sand is filled around this fugitive model to form a sand mold. After forming the sand mold part, the sand mold part is placed in a reduced pressure state to tightly solidify it to prevent collapse, and molten metal is injected into the fugitive model to melt and vaporize the fugitive model, thereby forming the fugitive model. There are castings that have the same shape.
発明が解決しようとする問題点
しかし、従来は消失性模型を鋳枠内に配置する
時に、作業者が鋳枠内で模型の設置作業を行つて
いたが、鋳枠内が限られた空間であるために、作
業が困難性を伴なうものとなるばかりか、鋳枠内
に作業者用の空間を必要とするために、鋳枠の容
量を、消失性模型の配置に要するもの以上に大き
くせねばならず、設備の大型化により設備費が高
騰する問題があつた。さらに、鋳造物を鋳枠から
取り出す時に鋳砂の除去に手間取る問題が、特に
長尺な消失性模型を縦方向に配置して鋳造した場
合にあつた。Problems to be Solved by the Invention However, in the past, when placing a fugitive model in a casting flask, an operator installed the model inside the casting flask, but the inside of the casting flask was a limited space. This not only makes the work difficult, but also requires space for the worker within the flask, making the capacity of the flask larger than that required for the placement of the fugitive model. This created the problem of rising equipment costs as the equipment became larger. Furthermore, there is a problem in that it takes time to remove the casting sand when the cast product is taken out of the flask, especially when a long fugitive model is cast with a longitudinally disposed arrangement.
本発明は上記問題点を解決するもので、消失性
模型の設置作業を、鋳枠に余分なスペースを設け
ることなく容易に行なうことが出来るとともに、
鋳造後の鋳砂の除去が簡単に行なえ、鋳造物の取
出しが容易な減圧鋳造方法およびその装置を提供
することを目的とする。 The present invention solves the above-mentioned problems, and makes it possible to easily install a fugitive model without providing extra space in the casting flask.
It is an object of the present invention to provide a reduced pressure casting method and an apparatus thereof, in which casting sand can be easily removed after casting and castings can be easily taken out.
問題点を解決するための手段
上記問題点を解決するため、本発明の方法は、
台座部上に床砂を介して消失性模型を配置し、こ
の台座部に対して接合離脱可能な枠体部を前記消
失性模型を囲んで配置し、前記台座部と枠体部と
により形成された鋳枠内に鋳砂を充填して砂型部
を形成し、金属溶湯を砂型部内の消失性模型に対
して注入し、消失性模型の気化消失によつて金属
溶湯を消失性模型と同形状に鋳込で鋳造し、鋳造
後に、枠体部を台座部から離脱させて鋳造物周囲
の鋳砂を除去する構成としたものである。Means for Solving the Problems In order to solve the above problems, the method of the present invention includes:
A fugitive model is placed on a pedestal part through floor sand, a frame part that can be attached to and detached from the pedestal part is placed surrounding the fugitive model, and the pedestal part and the frame part form a The molded flask is filled with sand to form a sand mold, molten metal is injected into the fugitive model in the sand mold, and the molten metal is vaporized and dissipated to become the same as the fugitive model. The structure is such that the mold is cast into a shape, and after casting, the frame is separated from the pedestal and the casting sand around the cast is removed.
また、本発明の装置は、消失性模型を囲んで配
置され、内部に鋳砂を充填して砂型部を形成する
ための鋳枠を、接合離脱可能な、上部の枠体部と
下部の台座部とに分割形成した構成としたもので
ある。 Furthermore, the apparatus of the present invention has an upper frame part and a lower pedestal, which are disposed surrounding the fugitive model and are capable of joining and detaching a casting flask for filling the inside with casting sand to form a sand mold part. The structure is divided into two parts.
作 用
上記した方法の構成によれば、台座部上に消失
性模型を配置した後に、この消失模型を枠体部で
囲むので、消失性模型の設置作業を、枠体部に阻
害されることなく容易に行なうことが出来るとと
もに、枠体部の容量が消失性模型を囲うに要する
最小限のものでよくなる。Effects According to the configuration of the method described above, after placing the vanishing model on the pedestal, the vanishing model is surrounded by the frame, so that the installation work of the vanishing model is not obstructed by the frame. This can be easily carried out without any problems, and the capacity of the frame body can be the minimum required to enclose the evanescent model.
また、鋳造物の取出し時には、枠体部を台座部
から離脱させることにより鋳造物周囲の鋳砂が自
然崩壊するので、簡単な作業で容易に鋳砂を除去
することが出来る。 In addition, when taking out the casting, the casting sand around the casting collapses naturally by separating the frame from the pedestal, making it possible to easily remove the casting sand with a simple operation.
また、上記した装置の構成によれば、鋳枠が上
部の枠体部と下部の台座部とに分割形成されてい
るので、枠体部を取りはずした状態で消失性模型
の台座部上への設置作業を行うことが出来、設置
作業を枠体部に阻害されることなく容易に行なえ
るとともに、枠体部に消失性模型の設置作業要ス
ペースを設ける必要がないので枠体部の容量を消
失性模型を囲うに要する最小限のものとすること
が出来る。また、鋳造後に、枠体部を台座部から
取りはずすことにより、砂型部が自然崩壊し、鋳
造物の取出し作業が容易なものとなる。 Furthermore, according to the above-described configuration of the device, since the casting flask is divided into an upper frame portion and a lower pedestal portion, the fugitive model can be placed on the pedestal portion with the frame portion removed. The installation work can be done easily without being obstructed by the frame, and there is no need to provide space in the frame for the installation work of the fugitive model, so the capacity of the frame can be reduced. It is possible to minimize the amount required to surround the evanescent model. Further, by removing the frame portion from the pedestal portion after casting, the sand mold portion naturally collapses, making it easier to remove the cast product.
実施例
以下、本発明の一実施例を図面に基づいて説明
する。第1図〜第2図において、鋳枠1は、筒状
の胴体部を成す上部の枠体部2と、底部を成す下
部の台座部3とに分割形成されている。また、枠
体部2の鍔状を成す下端周縁部2aと、台座部3
の鍔状を成す上端周縁部3aとはパツキン4を介
して気密に接合可能に形成されている。そして、
下端周縁部2aと上端周縁部3aとを挟持固定す
る着脱自在なジヨイントフツク5により枠体部2
と台座部3とが連結固定されている。そして、枠
体部2の内側には複数の脱気管6が周方向に適当
間隔をあけて配置されており、脱気管6は管壁に
φ8mm程度の脱気孔7が千鳥状に複数設けられて
いる。また、脱気管6には、鋳枠1内に充填され
る鋳砂湯の流入を防止するためのステンレス製の
金網9が巻着されており、金網9は針金10によ
つて固縛されている。そして、脱気管6の下端は
盲ブタ11によつて閉塞されており、上端は枠体
部2を貫通して、枠体部2の外側周部に形成され
た通気ダクト12に連通している。また、通気ダ
クト12には吸引装置(図示せず)に連通する減
圧管13が連結されている。そして、枠体部2の
外側周部の適当箇所には、複数のガス抜管14が
枠体部2内に連通して設けられており、このガス
抜管14には、枠体部2の内側から外側への一方
向の流通のみを許す弁(図示せず)が設けられて
いる。そして、枠体部2の外側部には周方向の横
リブ15と軸方向の縦リブ16とが設けられて枠
体部2の強度補強が行なわれている。また、横リ
ブ15と縦リブ16とが交わる所には、吊手17
が設けられている。そして、台座部3の底部には
空洞を形成する上底部18が設けられており、上
底部18には複数の脱気孔19が設けられてい
る。また、上底部18は鋳砂8の流入を阻止する
ステンレス製の金網20で覆われており、この金
網20を押えるためのリング18aが上底18の
外周部に金網20を介して外嵌合している。そし
て、吸引装置(図示せず)に連通する減圧管21
が上底部18の空洞に連通して設けられている。
そして、第3図に示すように、ジヨイントフツク
5は、台座部3の上端周縁部3aの裏側に固着さ
れた固定部22と、この固定部22に一体を回動
自在に連結される中間節23と、この中間節23
の途中に一端を回動自在に連結されるアーム24
と、このアーム24の他端に設けられた雌ネジ部
25に螺合する雄ネジ26とで構成されている。
また、枠体部2の下端周縁部2aの裏面側には、
雄ネジ26の外れ止めを行う止輪部27が形成さ
れている。そして、鋳枠1内には、発砲スチロー
ル製の複数の消失性模型28が床砂29上に配置
されており、各消失性模型28は、同じく発砲ス
チロール製の湯道部30で連結されている。ま
た、消失性模型8の周囲に充填された鋳砂8によ
つて砂型部31が形成されている。そして、枠体
部2の上端開口は気密性を保持するために、プラ
スツチクフイルムシートあるいは金属箔などの膜
体32によつて閉塞されており、この膜体32を
押えるために更に適当量の砂が載せられている。
そして、湯口33が膜体32を貫通するとともに
湯道部30に連続して設けられている。Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings. 1 and 2, a flask 1 is divided into an upper frame portion 2 forming a cylindrical body portion and a lower pedestal portion 3 forming a bottom portion. In addition, the lower end peripheral portion 2a forming the brim shape of the frame body portion 2 and the pedestal portion 3
It is formed so that it can be airtightly joined to the upper end peripheral edge part 3a forming a brim shape through a packing 4. and,
The frame body part 2 is fixed by a removable joint hook 5 that clamps and fixes the lower end peripheral part 2a and the upper end peripheral part 3a.
and the pedestal part 3 are connected and fixed. A plurality of deaeration pipes 6 are arranged at appropriate intervals in the circumferential direction inside the frame body part 2, and the deaeration pipes 6 are provided with a plurality of deaeration holes 7 of about 8 mm in diameter in a staggered manner on the pipe wall. There is. Further, a stainless steel wire mesh 9 is wrapped around the degassing pipe 6 to prevent the casting sand filled into the flask 1 from flowing in, and the wire mesh 9 is secured with a wire 10. . The lower end of the degassing pipe 6 is closed by a blind plug 11, and the upper end passes through the frame body 2 and communicates with a ventilation duct 12 formed on the outer circumference of the frame body 2. . Further, a pressure reducing pipe 13 communicating with a suction device (not shown) is connected to the ventilation duct 12. A plurality of gas vent pipes 14 are provided at appropriate locations on the outer periphery of the frame body 2 so as to communicate with the inside of the frame body 2. A valve (not shown) is provided that allows only one-way flow to the outside. Further, a horizontal rib 15 in the circumferential direction and a vertical rib 16 in the axial direction are provided on the outer side of the frame body part 2 to reinforce the strength of the frame body part 2. In addition, a hanging handle 17 is provided at the intersection of the horizontal rib 15 and the vertical rib 16.
is provided. An upper base part 18 forming a cavity is provided at the bottom of the pedestal part 3, and a plurality of deaeration holes 19 are provided in the upper base part 18. Further, the upper base 18 is covered with a stainless steel wire mesh 20 that prevents the casting sand 8 from flowing in, and a ring 18a for holding down the wire mesh 20 is externally fitted onto the outer periphery of the upper base 18 via the wire mesh 20. are doing. And a pressure reducing pipe 21 communicating with a suction device (not shown)
is provided in communication with the cavity of the upper base portion 18.
As shown in FIG. 3, the joint hook 5 includes a fixing part 22 fixed to the back side of the upper peripheral edge 3a of the pedestal part 3, and an intermediate joint 23 rotatably connected to the fixing part 22. And this middle clause 23
An arm 24 whose one end is rotatably connected in the middle of the
and a male screw 26 that is screwed into a female screw portion 25 provided at the other end of the arm 24.
Moreover, on the back side of the lower end peripheral edge 2a of the frame body part 2,
A retaining ring portion 27 is formed to prevent the male screw 26 from coming off. In the flask 1, a plurality of fugitive models 28 made of styrene foam are arranged on a floor sand 29, and each fugitive model 28 is connected by a runner 30 also made of styrene foam. There is. Further, a sand mold portion 31 is formed by casting sand 8 filled around the fugitive model 8. The upper end opening of the frame body 2 is closed with a membrane 32 made of plastic film sheet or metal foil in order to maintain airtightness. Sand is placed on it.
A sprue 33 penetrates the membrane body 32 and is provided continuously to the runner 30.
以下、上記構成における作用について説明す
る。まず、枠体部2を取りはずした状態で台座部
3内に床砂29を配置する。そして、この床砂2
9上に消失性模型28を湯道部30で連続して配
置する。したがつて、消失性模型28の設置作業
は、枠体部2の限られた空間内で行なわれないの
で、枠体部2に阻害されない容易なものとなる。
次に、枠体部2をクレーン等により吊手17を指
示して台座部3上に吊り上げて各消失性模型28
を囲むようにして台座部3上に載置する。そし
て、ジヨイントフツク5により枠体部2の下端周
縁部2aと台座部3の上端周縁部3aとを挟持固
定することによつて枠体部2と台座部3とを連結
固定する。この時、枠体部2の下端周縁部2aと
台座部3の上端周縁部3a間に配置したパツキン
4によつて接合部の気密性が保たれる。尚、ジヨ
イントフツク5の装着は、中間節23の自由端側
を上方に揺動させるとともにアーム24を回動さ
せて雄ネジ26を止輪部27に対応させた後に、
中間節23の自由端側を下方に揺動させ、アーム
24を介して雄ネジ26を枠体部2の下端周縁部
2aに押しつけることにより行なわれる。次に、
枠体部2内に鋳砂8を充填して砂型部31を形成
して後に、膜体32で枠体部2の上端開口を閉塞
するとともに、膜体32上に砂を載せて押える。
そして、吸引装置により砂型部31内の空気を脱
気管6および上底部18のそれぞれの脱気孔7,
19から吸込み、砂型部31を減圧状態にして鋳
砂8を緊密固化する。尚、脱気管6に吸込みまれ
た空気は通気ダクト12を通つて減圧管13に、
上底部18内に吸込まれた空気は減圧管21にそ
れぞれ導びかれて吸引排出される。次に、膜体3
2を貫通して設けた湯口33より金属溶湯を注入
する。この時、湯口33の下端開口には湯道部3
0の一端が位置しており、発砲スチロールで成形
された湯道部30は、金属溶湯の熱によつて気化
消失しながら金属溶湯を消失性模型28に導く、
そして、消失性模型28に達した金属溶湯は、熱
によつて消失性模型28を気化消失させながら、
消失性模型28の気化消失によつて生ずる空洞内
に流入する。このことによつて、金属溶湯が消失
性模型28と同形状に鋳込まれる。そして、鋳造
物の取出し時には、ジヨイントフツク5による固
定を解除し、クレーン等により吊り上げて枠体部
2を台座部3および砂型部31から離脱させる。
この時、砂型部31は枠体部2による拘束を解除
されて自然崩壊する。よつて、鋳造物の取出し作
業を容易に行なうことができる。 Hereinafter, the effects of the above configuration will be explained. First, the floor sand 29 is placed inside the pedestal section 3 with the frame section 2 removed. And this floor sand 2
The fugitive model 28 is placed continuously on the runner 9 with a runner 30. Therefore, the installation work of the evanescent model 28 is not carried out within the limited space of the frame body part 2, and is therefore easy to install without being obstructed by the frame body part 2.
Next, the frame body part 2 is lifted onto the pedestal part 3 by using a crane or the like with the lifting hand 17, and each vanishing model 28 is lifted up.
Place it on the pedestal part 3 so as to surround it. The joint hook 5 clamps and fixes the lower edge 2a of the frame 2 and the upper edge 3a of the pedestal 3, thereby connecting and fixing the frame 2 and the pedestal 3. At this time, the gastightness of the joint is maintained by the gasket 4 disposed between the lower end peripheral edge 2a of the frame body part 2 and the upper end peripheral edge 3a of the pedestal part 3. The joint hook 5 is attached by swinging the free end side of the intermediate section 23 upward and rotating the arm 24 to make the male thread 26 correspond to the retaining ring part 27.
This is done by swinging the free end side of the intermediate section 23 downward and pressing the male screw 26 against the lower end peripheral edge 2a of the frame body part 2 via the arm 24. next,
After filling the frame body part 2 with casting sand 8 to form a sand mold part 31, the upper end opening of the frame body part 2 is closed with a membrane body 32, and sand is placed on the membrane body 32 and pressed.
Then, the air in the sand mold part 31 is removed by the suction device from the degassing pipe 6 and the degassing holes 7 of the upper bottom part 18.
19, the sand mold part 31 is brought into a reduced pressure state, and the casting sand 8 is tightly solidified. Note that the air sucked into the degassing pipe 6 passes through the ventilation duct 12 and enters the decompression pipe 13.
The air sucked into the upper bottom portion 18 is guided to the pressure reducing pipes 21 and sucked and discharged. Next, the membrane body 3
Molten metal is injected through a sprue 33 provided through the hole 2. At this time, the runner 3 is located at the lower end opening of the sprue 33.
0 is located, and the runner 30 formed of styrene foam guides the molten metal to the fugitive model 28 while vaporizing and disappearing due to the heat of the molten metal.
Then, the molten metal that has reached the fugitive model 28 vaporizes and disappears the fugitive model 28 due to heat.
It flows into the cavity created by vaporization and disappearance of the fugitive model 28. As a result, the molten metal is cast into the same shape as the fugitive model 28. When taking out the casting, the fixation by the joint hook 5 is released, and the frame body part 2 is separated from the pedestal part 3 and the sand mold part 31 by being lifted by a crane or the like.
At this time, the sand mold part 31 is released from the restraint by the frame part 2 and collapses naturally. Therefore, the work of taking out the casting can be easily performed.
発明の効果
以上述べたごとく本発明によれば消失性模型の
設置作業を枠体部に阻害されるとなく容易に行な
うことが出来る。また、鋳造物の取出し時には、
枠体部を台座部より離脱させることにより砂型部
が自然崩壊し、鋳造物の取出し作業を容易に行な
うことが出来る。Effects of the Invention As described above, according to the present invention, the work of installing a fugitive model can be easily carried out without being obstructed by the frame. Also, when taking out the casting,
By separating the frame portion from the pedestal portion, the sand mold portion naturally collapses, making it possible to easily remove the cast material.
第1図は本発明の一実施例を示す全体断面図、
第2図は第1図のX−X矢視図、第3図Aは第1
図のY部の拡大図、第3図Bは第3図AのZ−Z
矢視図である。
1……鋳枠、2……枠体部、3……台座部、5
……ジヨイントフツク、28……消失性模型、3
0……湯道部。
FIG. 1 is an overall sectional view showing an embodiment of the present invention;
Figure 2 is a view from the X-X arrow in Figure 1, Figure 3 A is the 1st
Enlarged view of Y part in the figure, Figure 3B is Z-Z of Figure 3A
It is an arrow view. 1... Casting flask, 2... Frame body part, 3... Pedestal part, 5
...Jyointofutsuk, 28... Vanishing model, 3
0... Yudo club.
Claims (1)
し、この台座部に対して接合離脱可能な枠体部を
前記消失性模型を囲んで配置し、前記台座部と枠
体部とにより形成された鋳枠内に鋳砂を充填して
砂型部を形成し、金属溶湯を砂型部内の消失性模
型に対して注入し、消失性模型の気化消失によつ
て金属溶湯を消失性模型と同形状に鋳込で鋳造
し、鋳造後に枠体部を台座部から離脱させて鋳造
物周囲の鋳砂を除去することを特徴とする減圧鋳
造方法。 2 消失性模型を囲んで配置され、内部に鋳砂を
充填して砂型部を形成するための鋳枠を、接合離
脱可能な、上部の枠体部と下部の台座部とに分割
形成したことを特徴とする減圧鋳造装置。[Scope of Claims] 1. A fugitive model is placed on a pedestal part with floor sand interposed therebetween, a frame part that can be connected to and detached from the pedestal part is placed surrounding the fugitive model, and the pedestal part A sand mold is formed by filling a casting flask formed by a mold and a frame body, and molten metal is injected into the fugitive model in the sand mold, and the metal melts by vaporizing and disappearing from the fugitive model. A vacuum casting method characterized by casting molten metal in the same shape as a fugitive model, and after casting, separating the frame from the pedestal and removing casting sand around the cast. 2. The casting flask, which is placed around the fugitive model and is used to fill the inside with casting sand to form a sand mold, is divided into an upper frame portion and a lower pedestal portion that can be joined and removed. A vacuum casting device featuring:
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170660A JPS6415258A (en) | 1987-07-08 | 1987-07-08 | Method and apparatus for reduced pressure casting |
KR1019870012553A KR920010153B1 (en) | 1987-07-08 | 1987-11-07 | Method and apparatus for reduced pressure casting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170660A JPS6415258A (en) | 1987-07-08 | 1987-07-08 | Method and apparatus for reduced pressure casting |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6415258A JPS6415258A (en) | 1989-01-19 |
JPH0520186B2 true JPH0520186B2 (en) | 1993-03-18 |
Family
ID=15909006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62170660A Granted JPS6415258A (en) | 1987-07-08 | 1987-07-08 | Method and apparatus for reduced pressure casting |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS6415258A (en) |
KR (1) | KR920010153B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100846432B1 (en) * | 2007-11-22 | 2008-07-16 | 정신기계(주) | Manufacture method for sludge transfer parts using decompression casting and thereof product |
CN103495708A (en) * | 2013-07-25 | 2014-01-08 | 华远善 | Casting sandbox capable of reducing riser feeding |
-
1987
- 1987-07-08 JP JP62170660A patent/JPS6415258A/en active Granted
- 1987-11-07 KR KR1019870012553A patent/KR920010153B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS6415258A (en) | 1989-01-19 |
KR920010153B1 (en) | 1992-11-19 |
KR890001665A (en) | 1989-03-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2379401A (en) | Method and apparatus for casting metal | |
JP2914451B2 (en) | Antigravity casting method and apparatus | |
US4139045A (en) | Casting method and apparatus | |
CA1330385C (en) | Countergravity casting process and apparatus using destructible patterns suspended in an inherently unstable mass of particulate mold material | |
EP0225040B1 (en) | Countergravity casting mould and core assembly | |
CA2100831C (en) | Metal casting using a mold having attached risers | |
US6467531B1 (en) | Method and apparatus for producing investment castings in a vacuum | |
CA1045780A (en) | Pattern alignment or distortion preventing concept for use with lost foam molding process | |
JPH02104460A (en) | Vacuum ani-gravity type casting device and method by using check valve | |
US4828006A (en) | Lost foam pour box and lost foam casting process | |
JPH0520186B2 (en) | ||
JPH0220653A (en) | Vacuum anti-gravity type casting method and device | |
JP2562660B2 (en) | Mold making equipment | |
JPH02165844A (en) | Method for casting long length casting | |
US20160082506A1 (en) | Casting system and a method of casting using the same | |
CN206966593U (en) | A kind of evaporative pattern snap flask | |
JPH01237046A (en) | Method for casting lost foam pattern | |
CN217727058U (en) | Resin sand combined lost foam casting refining pot mold | |
JPH0230116Y2 (en) | ||
JPH07223046A (en) | Molding flask for reduced pressure molding | |
GB2155377A (en) | Forming boxless foundry moulds by vacuum packing | |
JPH0557061B2 (en) | ||
SU1294454A1 (en) | Core for vacuum moulding of large-size moulds | |
JPS59166347A (en) | Molding method in pack casting method | |
JPH0371964A (en) | Apparatus and method for low pressure casting |