JPH02133163A - Suction casting device - Google Patents
Suction casting deviceInfo
- Publication number
- JPH02133163A JPH02133163A JP28672988A JP28672988A JPH02133163A JP H02133163 A JPH02133163 A JP H02133163A JP 28672988 A JP28672988 A JP 28672988A JP 28672988 A JP28672988 A JP 28672988A JP H02133163 A JPH02133163 A JP H02133163A
- Authority
- JP
- Japan
- Prior art keywords
- flask
- mold
- pipes
- suction
- disposed
- 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 16
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract 2
- 239000000919 ceramic Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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、シェル鋳型や自硬性鋳型を用いる吸引鋳造装
置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a suction casting apparatus using a shell mold or a self-hardening mold.
（従来の技術）
薄肉部を有する複雑な形状の鋳物製品を作るのに、注湯
時吸引することはよく成される。たとえば、特開昭５４
−２６９２０号公報は、セラミックシェル鋳型を耐火物
からなるバックアップ材と共に鋳枠内に配し、この鋳枠
の下部に設けた吸引箱を介して鋳枠内を吸引させながら
注湯することを開示する。又、特開昭５５−１２０４４
７号公報は、セラミックシェル鋳型をバックアップ材と
共に鋳枠内に配し、吸引箱を用いて吸引状態で鋳造した
例を教示している。(Prior Art) In producing complex-shaped casting products with thin walled parts, suction is often used during pouring. For example, JP-A-54
Publication No. 26920 discloses that a ceramic shell mold is placed in a flask together with a backup material made of a refractory material, and the inside of the flask is sucked through a suction box provided at the bottom of the flask while pouring the metal. do. Also, JP-A-55-12044
Publication No. 7 teaches an example in which a ceramic shell mold is placed in a flask together with a backup material and cast under suction using a suction box.
（本発明が解決しようとする課題）
前述した吸引鋳造は、高価なセラミックシェル鋳型を不
可欠とすると共に、吸引効率を高めるために、鋳枠と吸
引箱との間のシールを用いているが、注湯時の高温や鋳
型の予熱温度も高いことから、シールの劣化や溶損が多
く、たとえば、注湯時−５０〜−５００Ｈｇに減圧を保
つことが困難であり、シールに対する保守点検作業も多
い。(Problems to be Solved by the Present Invention) The above-mentioned suction casting requires an expensive ceramic shell mold and uses a seal between the flask and the suction box to increase suction efficiency. Due to the high temperature during pouring and the high preheating temperature of the mold, seals often deteriorate and melt.For example, it is difficult to maintain a reduced pressure of -50 to -500Hg during pouring, and maintenance and inspection of seals is also difficult. many.
それ故に、本発明は、前述した不具合を解消することを
解決すべき課題とする。Therefore, it is an object of the present invention to solve the above-mentioned problems.
（課題を解決するための手段）
本発明は、前述した課題を解決するために、基本的には
、鋳枠内に、シェル又は自硬性鋳型、バックアップ材、
鋳型下部の複数本のメツシュパイプを組込み、鋳枠の開
口を樹脂フィルムで覆う手段を採用する。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention basically includes a shell or a self-hardening mold, a backup material,
A method is adopted in which multiple mesh pipes are installed at the bottom of the mold and the opening of the flask is covered with a resin film.
（作用）
本発明は、メツシュパイプを鋳型の下部に入れているの
で、鋳枠と吸引箱との間のシールを不用とする。又、鋳
枠と吸引箱との整合作業やシールの取付を不必要とし、
鋳造作業が容易となる。(Function) In the present invention, since the mesh pipe is placed in the lower part of the mold, there is no need for a seal between the flask and the suction box. In addition, it eliminates the need for alignment work between the casting flask and suction box, and the installation of seals.
Casting work becomes easier.
（実施例）
本考案による実施例として、ステンレス鋼によるマンホ
ールドの製作例を図示する。マンホールド用の自硬性鋳
型又はシェル鋳型１は、マグネシャクリンカ−の如きバ
ンクアップ材２と共に、鋳枠３内に配す。(Example) As an example of the present invention, an example of manufacturing a manhold made of stainless steel will be illustrated. A self-hardening mold or shell mold 1 for a manfold is placed in a flask 3 together with a bank-up material 2 such as a magnesha clinker.
鋳枠３内には、その下部の一側に吸引室４が設けられる
。この吸引室４に複数本の離間したメツシュパイプ５を
螺着させる。メツシュパイプ５は、ステンレスメソシュ
を外径２５．４１ｍ、厚み２鶴に巻いたものが使用され
る。メツシュパイプ５の自由端にキャップ６を嵌合させ
る。このメツシュパイプ５は取外し交換も容易で、又、
キャップを外してパイプ５内のクリーニングも容易であ
る。A suction chamber 4 is provided in the flask 3 at one side of its lower part. A plurality of spaced mesh pipes 5 are screwed into this suction chamber 4. The mesh pipe 5 used is a stainless steel mesh pipe wound into a 25.41 m outer diameter and 2 strands of thickness. A cap 6 is fitted onto the free end of the mesh pipe 5. This mesh pipe 5 is easy to remove and replace, and
It is also easy to clean the inside of the pipe 5 by removing the cap.
メツシュパイプ５は、複数本離間して平行に配し、鋳型
１を、これらメツシュパイプ５に対し直交、斜交或いは
平行となるようメツシュパイプ５の上部に配す。A plurality of mesh pipes 5 are arranged parallel to each other, and the mold 1 is arranged above the mesh pipes 5 so as to be perpendicular, oblique or parallel to the mesh pipes 5.
第１図に示すように、鋳枠３の上部開口を樹脂フィルム
７で覆うと共に、吸引室４を−３００〜−７００酊Ｈｇ
の負圧、好ましくは、−４００〜＝６００Ｈｇの負圧に
吸引し、メツシュパイプ５を介して鋳枠３内を負圧とす
る。鋳枠３内を吸引状態としたま＼、ステンレス鋼（Ｓ
ＵＳ４１０）の１６２０℃の溶湯を湯口８からマンホー
ルド用の鋳型１内に数秒にて注湯する。得られたマンホ
ールドは、薄肉で複雑な形状の部分にも完全に溶湯が廻
り良好な製品であった。As shown in Fig. 1, the upper opening of the flask 3 is covered with a resin film 7, and the suction chamber 4 is heated to -300 to -700 Hg.
, preferably -400 to =600 Hg, and the inside of the flask 3 is brought to a negative pressure via the mesh pipe 5. While the inside of the flask 3 is under suction, the stainless steel (S)
Molten metal of US 410) at 1620° C. is poured into a mold 1 for a manfold from a sprue 8 in a few seconds. The obtained manfold was a good product, with the molten metal completely circulating even in the thin and complicatedly shaped parts.
（効果）
本発明は、比較的簡単な構造のもので、しかも、厳しい
寸法精度を要求される製品の鋳造に好適である。特に、
鋳型の下部にメツシュパイプを配しているので、鋳枠ま
わりの吸引が効果的に成され、湯のまわりがより良好で
ある。(Effects) The present invention has a relatively simple structure and is suitable for casting products that require strict dimensional accuracy. especially,
Since a mesh pipe is placed at the bottom of the mold, suction around the flask is effectively achieved, and the flow of hot water is improved.
さらに、本発明はシェル又は自硬性鋳型を用いるので安
価な吸引鋳造が可能となる。Furthermore, since the present invention uses a shell or self-hardening mold, inexpensive suction casting is possible.
第１図は本発明の一例の吸引鋳造装置の断面図、第２図
はメソシュパイプと鋳型の関係を示す平面図である。
図中：１・・・鋳型、２・・・バックアップ材、３・・
・鋳枠、４・・・吸引室、５・・・メツシュパイプ、７
・・・樹脂フィルム。FIG. 1 is a sectional view of a suction casting apparatus according to an example of the present invention, and FIG. 2 is a plan view showing the relationship between a mesh pipe and a mold. In the diagram: 1... Mold, 2... Backup material, 3...
・Casting flask, 4... Suction chamber, 5... Mesh pipe, 7
...Resin film.
Claims (1)
入されたバックアップ材、該鋳枠内にその頂部が同平面
となるように配されたシェル又は自硬性鋳型と、鋳枠と
鋳型の開口を封じる樹脂フィルムよりなり、前述メッシ
ュパイプが前記鋳型の下部に複数本離間して配されるこ
とを特徴とする吸引鋳造装置。A casting flask with a mesh pipe arranged at the bottom thereof, a backup material charged into the flask, a shell or self-hardening mold disposed within the flask so that its top is on the same plane, and a casting flask. 1. A suction casting device comprising a resin film for sealing an opening of a mold, and comprising a plurality of mesh pipes spaced apart from each other below the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28672988A JPH02133163A (en) | 1988-11-15 | 1988-11-15 | Suction casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28672988A JPH02133163A (en) | 1988-11-15 | 1988-11-15 | Suction casting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02133163A true JPH02133163A (en) | 1990-05-22 |
Family
ID=17708262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28672988A Pending JPH02133163A (en) | 1988-11-15 | 1988-11-15 | Suction casting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02133163A (en) |
-
1988
- 1988-11-15 JP JP28672988A patent/JPH02133163A/en active Pending
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