JPS63149063A - Casting apparatus - Google Patents
Casting apparatusInfo
- Publication number
- JPS63149063A JPS63149063A JP29347586A JP29347586A JPS63149063A JP S63149063 A JPS63149063 A JP S63149063A JP 29347586 A JP29347586 A JP 29347586A JP 29347586 A JP29347586 A JP 29347586A JP S63149063 A JPS63149063 A JP S63149063A
- Authority
- JP
- Japan
- Prior art keywords
- inner cylinder
- high pressure
- mold
- pressure
- molten metal
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 9
- 238000012856 packing Methods 0.000 abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000005495 investment casting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 helium copper Chemical compound 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は精密鋳造を行なうのに好適な鋳造装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a casting apparatus suitable for performing precision casting.
（従来の技術）
従来、精密鋳造に使用される鋳造装置の一例としては、
第２図にその一例を示すように、高圧容器１１内の底板
１２上に鋳型１３を設置して予熱した後、高圧容器１１
内に溶湯１４を注湯して高圧容器１１を密閉する。その
後、高圧容器１１の上部に設けた貫通孔１５を介して図
示しない加圧装置により例えば４０ｋｇ ／ ｃｍ ２
程度に加圧された窒素ガスを高圧容器ｌＩ内に供給して
、高圧下で鋳造を行なうよう構成された装置が知られて
いた。(Prior art) An example of a casting device conventionally used for precision casting is
As an example is shown in FIG.
Molten metal 14 is poured into the container and the high pressure container 11 is sealed. Thereafter, for example, 40 kg/cm 2 is applied by a pressurizing device (not shown) through a through hole 15 provided in the upper part of the high pressure container 11.
An apparatus has been known that is configured to perform casting under high pressure by supplying nitrogen gas pressurized to a certain degree into a high-pressure vessel II.
（発明が解決しようとする問題点）
しかしながら、上述した構造の鋳造装置においては、製
作すべき鋳物の形状にかかわらず鋳型１３の底部は高圧
容器１１の底面全体の大きさを必要とするとともに、高
圧容器１１の内部全体に鋳型１３が？容器内にあるよう
に？容器をン主場しなければならなかった。そのため、
製作すべき鋳物が小型のものであっても、底部が大きい
形状の鋳型１３が必要となるとともに、注湯する溶湯の
量を多く必要とする欠点があった。また鋳型１３の外周
寸法に応じた高圧容器が必要となり多種の高圧容器が必
要であった。(Problems to be Solved by the Invention) However, in the casting apparatus having the above-described structure, the bottom of the mold 13 needs to be the same size as the entire bottom of the high-pressure vessel 11, regardless of the shape of the casting to be produced. Is there a mold 13 all over the inside of the high-pressure vessel 11? As in the container? I had to empty the container. Therefore,
Even if the casting to be manufactured is small, a mold 13 with a large bottom is required, and a large amount of molten metal is required to be poured. In addition, a high pressure container corresponding to the outer peripheral dimension of the mold 13 is required, and various types of high pressure containers are required.
さらに、溶湯が直接高圧容器１１に接するため、高圧に
耐えるよう肉厚の部材で作製された高圧容器１１全体を
予熱する必要があり、エネルギー効率の点でも問題があ
った。Furthermore, since the molten metal comes into direct contact with the high-pressure vessel 11, it is necessary to preheat the entire high-pressure vessel 11, which is made of a thick material to withstand high pressure, which also poses a problem in terms of energy efficiency.
本発明は上述した不具合を解消して、作製すべき鋳物形
状にあった内筒を使用することにより、少ない溶湯使用
量でよく、さらにエネルギー効率もよく精密鋳造を行な
うことができる鋳造装置を提供しようとするものである
。The present invention solves the above-mentioned problems and provides a casting device that uses a smaller amount of molten metal and can perform precision casting with good energy efficiency by using an inner cylinder that matches the shape of the casting to be produced. This is what I am trying to do.
（問題点を解決するための手段）
本発明の鋳造装置は、高圧ガス供給孔を有する高圧容器
と、高圧容器の底板上に設けられ、鋳型の大きさに対応
した内筒形状を有するとともに上部に貫通孔を有する内
筒とからなり、その内部底板上に鋳型を設置した内筒内
に溶湯を注湯した後高圧容器を密閉し、高圧ガス供給孔
からガスを供給して高圧下で鋳造を行なうことを特徴と
する鋳造装置ある。(Means for Solving the Problems) The casting apparatus of the present invention includes a high-pressure container having a high-pressure gas supply hole, an inner cylindrical shape that is provided on the bottom plate of the high-pressure container, and an upper part that corresponds to the size of the mold. After pouring molten metal into the inner cylinder with a through hole on the inner bottom plate, the high-pressure container is sealed, and gas is supplied from the high-pressure gas supply hole to cast under high pressure. There is a casting device that is characterized by performing.
（作 用）
上述した構成において、鋳型の形状に応じた内筒を高圧
容器内に設置して鋳造を行なうため、鋳型の形状が変化
しても、その鋳型に対応する内筒を予め作製しておきそ
の内筒を高圧容器内に設置し直すことにより、小型の鋳
造物を得るときは小型の鋳型のままで好適に鋳造を行な
うことができる。また、溶湯は内筒内だけに注湯するだ
けで十分なため、使用する溶湯の量を従来例に比較して
少なくすることができる。さらに、内筒は高圧容器内に
設置されているものの、貫通孔によりその内外の圧力を
同じ圧力としているため圧力に耐えるように厚く作製す
る必要がなく、その結果予熱も最小限で十分でありエネ
ルギー効率も良好となる。(Function) In the above-mentioned configuration, since casting is performed by installing an inner cylinder according to the shape of the mold in a high-pressure container, even if the shape of the mold changes, an inner cylinder corresponding to the mold can be prepared in advance. By reinstalling the inner cylinder in the high-pressure container, when obtaining a small-sized casting, casting can be suitably carried out using a small-sized mold. Furthermore, since it is sufficient to pour the molten metal only into the inner cylinder, the amount of molten metal used can be reduced compared to the conventional example. Furthermore, although the inner cylinder is installed in a high-pressure container, the pressure inside and outside the cylinder is the same due to the through-hole, so there is no need to make it thick enough to withstand pressure, and as a result, minimal preheating is sufficient. Energy efficiency is also improved.
第１図は本発明の鋳造装置の一実施例を示す線図である
。本実施例においては、高圧容器１を上下２分割に構成
し、上半部１ａには高圧ガス供給孔２を設けるとともに
、下半部１ｂの底部１ｃは下半部ｌｂと分離可能に構成
している。底部ＩＣ上には、所定形状の鋳型３とこの鋳
型３の形状と同じ内筒形状を有する内筒４を設置する。FIG. 1 is a diagram showing an embodiment of the casting apparatus of the present invention. In this embodiment, the high-pressure container 1 is divided into upper and lower halves, and the upper half 1a is provided with a high-pressure gas supply hole 2, and the bottom 1c of the lower half 1b is separable from the lower half lb. ing. A mold 3 having a predetermined shape and an inner cylinder 4 having the same inner cylinder shape as the mold 3 are installed on the bottom IC.
このとき、鋳型３と内筒４とが隙間なく密着している場
合は、第１図に示すように内筒４の下端部が高圧容器１
の底部１ｃと接する必要がないが、隙間がある場合は内
筒４の下端部を底部１ｃと密着して構成する必要がある
。また、鋳型３、内筒４と底部１ｃとの間には、アスベ
スト又はカーボンシートよりなるパツキン５を設けると
好ましい。At this time, if the mold 3 and the inner cylinder 4 are in close contact with each other without any gap, the lower end of the inner cylinder 4 is connected to the high pressure vessel 4 as shown in FIG.
However, if there is a gap, the lower end of the inner cylinder 4 needs to be in close contact with the bottom 1c. Further, it is preferable to provide a packing 5 made of asbestos or carbon sheet between the mold 3, the inner cylinder 4, and the bottom 1c.
内筒４の上部にはフランジ部４ａを高圧容器１の上半部
１ａと下半部１ｂとが結合する位置に設け、高圧容器１
を密閉するときに内筒４が固定されるよう構成している
。すなわち、フランジ部４ａの上下をアスベスト又はカ
ーボンシートよりなるパツキン６ａ、 ６ｂより挟み、
上下から例えば６０トン程度の加圧力で型締めすること
により高圧容器１を気密に密閉している。また、内筒４
の上部には複数の貫通孔７を設け、加圧時においても内
筒４の内、外の圧力が同一となるようにしている。その
ため、内筒４は高圧力に耐える必要がなく溶湯８の自重
および温度に耐えるだけでよいため、薄い耐熱金属、セ
ラミック材料等で構成することができる。A flange portion 4a is provided at the upper part of the inner cylinder 4 at a position where the upper half portion 1a and the lower half portion 1b of the high pressure vessel 1 are connected.
The inner tube 4 is configured to be fixed when the tube is sealed. That is, the upper and lower parts of the flange portion 4a are sandwiched between gaskets 6a and 6b made of asbestos or carbon sheets,
The high-pressure container 1 is hermetically sealed by clamping the molds from above and below with a pressure of, for example, about 60 tons. In addition, the inner cylinder 4
A plurality of through holes 7 are provided in the upper part of the inner cylinder 4 so that the pressure inside and outside the inner cylinder 4 is the same even when pressurized. Therefore, the inner cylinder 4 does not need to withstand high pressure and only needs to withstand the own weight and temperature of the molten metal 8, and therefore can be made of a thin heat-resistant metal, ceramic material, or the like.
また、鋳型３の材質としては、加圧して鋳造することに
なるため金属製鋳型を使用すると好適である。さらに、
内筒４は使用する鋳型３の寸法に合わせて予め複数個作
製して、高圧容器１の密閉時に使用する鋳型３に最適な
内筒４と交換するよう構成している。Further, as the material of the mold 3, it is preferable to use a metal mold since the mold will be cast under pressure. moreover,
A plurality of inner cylinders 4 are prepared in advance according to the dimensions of the mold 3 to be used, and are configured to be replaced with the inner cylinder 4 most suitable for the mold 3 used when sealing the high-pressure vessel 1.
上述した構成の鋳造装置において、実際の鋳造は以下の
ようにして実施される。まず、底部１ｃ上に鋳型３及び
内筒４をセットする。次に、内筒４内に溶湯８を注湯し
た後、上半部１ａをパツキン６ａ。In the casting apparatus configured as described above, actual casting is carried out as follows. First, the mold 3 and the inner cylinder 4 are set on the bottom part 1c. Next, after pouring the molten metal 8 into the inner cylinder 4, the upper half 1a is sealed with a packing 6a.
６ｂを介して下半部１ｂ上に載置し、上下方向からプレ
ス機等により例えば５０トンで型締めして密閉する。そ
の後、高圧ガス供給孔２を介して図示しない加圧機から
ゲージ圧０．２〜６０ ｋｇ／ ｃｍ ２の窒素ガスを
供給し、高圧容器１内を高圧状態として加圧凝固を行な
う。最後に、上半部１ａを取り除き、内筒４および鋳型
３を除去して所望形状の鋳造物を得る。なお、本発明は
鋳造可能なすべての組成の合金に適用可能であるが、そ
の中でもヘリリウム銅合金、鉄系合金、アルミニウム合
金等の鋳造に好適に使用することができる。6b on the lower half part 1b, and the mold is clamped from above and below using a press or the like with a force of, for example, 50 tons to seal it. Thereafter, nitrogen gas with a gauge pressure of 0.2 to 60 kg/cm 2 is supplied from a pressurizer (not shown) through the high-pressure gas supply hole 2 to bring the inside of the high-pressure container 1 into a high-pressure state and perform pressurized solidification. Finally, the upper half 1a is removed, and the inner cylinder 4 and mold 3 are removed to obtain a cast product of the desired shape. Note that the present invention is applicable to alloys of all compositions that can be cast, but among them, it can be suitably used for casting helium copper alloys, iron-based alloys, aluminum alloys, and the like.
本発明は上述した実施例にのみ限定されるものではなく
、幾多の変形、変更が可能である。例えば、上述した実
施例では正立させたまま鋳造を行なう装置について説明
したが、高圧容器１のほぼ中心を回転軸として構成し、
第１図に示す状態を１８０６回転した状態で内筒４のな
い半部に設けた同じく内筒からなる湯溜に一旦溶湯を注
湯し、その状態から１８０ ’急速に回転するとともに
高圧ガスを供給するように構成することができる。The present invention is not limited only to the embodiments described above, and numerous modifications and changes are possible. For example, in the above-mentioned embodiment, an apparatus was described that performs casting while standing upright, but the apparatus is configured such that approximately the center of the high-pressure vessel 1 is the rotation axis,
The state shown in Fig. 1 is rotated 1806 times, and the molten metal is poured into a reservoir made of the same inner cylinder provided in the half without the inner cylinder 4. From that state, it rapidly rotates 180' and high-pressure gas is released. can be configured to supply
また、高圧容器の分割の位置およびガス供給孔は任意に
変更でき、又高圧容器と底板とを一体に形成しても勿論
よいものである。又、セラミック製鋳型を用いゲージ圧
０．２〜１０ｋｇ／ｃｍ２の低圧で用いることもできる
。Further, the position of division of the high-pressure container and the gas supply hole can be changed as desired, and the high-pressure container and the bottom plate may of course be formed integrally. It is also possible to use a ceramic mold at a low gauge pressure of 0.2 to 10 kg/cm2.
（発明の効果）
以上詳細に説明したところから明らかなように、本発明
の鋳造装置によれば、高圧容器内に所定の内筒を設けた
二重構造とすることにより、作製すべき鋳物形状にあっ
た内筒を使用することにより、少ない溶湯使用量でよく
、さらにエネルギー効率もよく精密鋳造を行なうことが
できる。(Effects of the Invention) As is clear from the detailed explanation above, according to the casting apparatus of the present invention, the shape of the casting to be produced is achieved by forming a double structure in which a predetermined inner cylinder is provided in the high-pressure container. By using an inner cylinder that is suitable for this purpose, the amount of molten metal used can be reduced, and precision casting can be performed with good energy efficiency.
第１図は本発明の鋳造装置の一実施例を示す線図、
第２図は従来の鋳造装置の一実施例を示す線図である。
１−高圧容器 １ａ−上半部
Ｉｂ−一下半部 １ ｃ−・底部２〜高圧ガ
ス供給孔 ３・・−鋳型
４−内筒 ５．６ａ、 ６ｂ−パツキン７−
・貫通孔 ８−・−溶湯第１図
３倹今型
１２ 乃≦４才反FIG. 1 is a diagram showing an embodiment of a casting apparatus according to the present invention, and FIG. 2 is a diagram showing an embodiment of a conventional casting apparatus. 1 - High pressure container 1a - Upper half Ib - Lower half 1 c - Bottom 2 - High pressure gas supply hole 3... - Mold 4 - Inner cylinder 5.6a, 6b - Packing 7 -
・Through hole 8-・-Molten metal Figure 1 3 Thumb type 12 No≦4 years old
Claims (1)
板上に設けられ、鋳型の大きさに対応した内筒形状を有
するとともに上部に貫通孔を有する内筒とからなり、そ
の内部底板上に鋳型を設置した内筒内に溶湯を注湯した
後高圧容器を密閉し、高圧ガス供給孔からガスを供給し
て高圧下で鋳造を行なうことを特徴とする鋳造装置。 ２、前記内筒と底板との間にアスベスト又はカーボンシ
ートを介在させる特許請求の範囲第１項記載の鋳造装置
。 ３、前記溶湯がベリウム銅合金、鉄系合金、アルミニウ
ム合金のいずれかである特許請求の範囲第１項記載の鋳
造装置。 ４、前記加圧圧力がゲージ圧０．２〜６０ｋｇ／ｃｍ＾
２である特許請求の範囲第１項記載の鋳造装置。[Claims] 1. A high-pressure container having a high-pressure gas supply hole, and an inner cylinder provided on the bottom plate of the high-pressure container, having an inner cylinder shape corresponding to the size of the mold, and having a through hole in the upper part. A casting device characterized by pouring molten metal into an inner cylinder with a mold installed on the inner bottom plate, sealing the high-pressure container, and performing casting under high pressure by supplying gas from a high-pressure gas supply hole. . 2. The casting apparatus according to claim 1, wherein an asbestos or carbon sheet is interposed between the inner cylinder and the bottom plate. 3. The casting apparatus according to claim 1, wherein the molten metal is any one of a beryum-copper alloy, an iron-based alloy, and an aluminum alloy. 4. The pressurizing pressure is a gauge pressure of 0.2 to 60 kg/cm^
2. The casting apparatus according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29347586A JPS63149063A (en) | 1986-12-11 | 1986-12-11 | Casting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29347586A JPS63149063A (en) | 1986-12-11 | 1986-12-11 | Casting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63149063A true JPS63149063A (en) | 1988-06-21 |
Family
ID=17795221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29347586A Pending JPS63149063A (en) | 1986-12-11 | 1986-12-11 | Casting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63149063A (en) |
-
1986
- 1986-12-11 JP JP29347586A patent/JPS63149063A/en active Pending
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