JPS59120344A - Method and core for casting hollow object made of metal or plastics - Google Patents
Method and core for casting hollow object made of metal or plasticsInfo
- Publication number
- JPS59120344A JPS59120344A JP22950582A JP22950582A JPS59120344A JP S59120344 A JPS59120344 A JP S59120344A JP 22950582 A JP22950582 A JP 22950582A JP 22950582 A JP22950582 A JP 22950582A JP S59120344 A JPS59120344 A JP S59120344A
- Authority
- JP
- Japan
- Prior art keywords
- core
- fluid
- casting
- synthetic resin
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/101—Permanent cores
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、金属製または合成樹脂製中空物のキャステ
ィング方法およびキャスティング用中子に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for casting hollow objects made of metal or synthetic resin, and a casting core.
従来、たとえば金属製中空物は、型内に中Ｔを配置した
後金属溶渇を型内にと十人することにより製造されてい
た。このような中子は、たとえば砂を造型することによ
りつくられていたが、その造型作業が面倒になるうらみ
があった。また、溶湯が凝固した後、得られた中空案内
から中子を取り山号作業が非常にｒｆ＋ｉ倒であ−）た
。その結果、中空物の製造作業全体も面倒になるうらみ
があった。さらに、中子は一度の製造作業にしか使用す
ることができなかった。Conventionally, for example, metal hollow objects have been manufactured by placing a medium T in a mold and then melting the metal into the mold. Such cores were made, for example, by molding sand, but this had the disadvantage that the molding process was troublesome. In addition, after the molten metal solidified, the core was removed from the resulting hollow guide and the work required to remove the core was extremely RF+1-intensive. As a result, the entire process of manufacturing the hollow object becomes troublesome. Additionally, cores could only be used in one manufacturing operation.
この発明は上記実情に鑑みてなされたもので・あって、
金属製および合成樹脂製中空物を容易に得ることがて・
きるとともに１つの中子を何度も使用できるキャスティ
ング方法およびキャスティング用中子を提供することを
目的とする。This invention was made in view of the above circumstances, and
Metal and synthetic resin hollow objects can be easily obtained.
To provide a casting method and a casting core which can be used many times and one core can be used many times.
この発明の１つの金属製または合成樹脂製中空物のキャ
スティング方法は、母型内に、金属的または合成樹脂フ
ィルム製袋状体からなり、かつ内部に流体を充填するこ
とにより所定の形状となる中子を配置する第１王程と、
この母型内に金属または合成樹脂の溶融物を注入し−（
硬化させる第２■程と、中子内の流体を抜くこと ３−
により中子を収縮させて、これを硬化物内部がら取出１
第３工稈どよりなり、上記第１王程における中子の母型
内への配置の前段階おＪ：び後段階のいずれか一方に、
中子内へ流体を充填することを特徴とするものである。One method of casting a hollow object made of metal or synthetic resin according to the present invention consists of a bag-like body made of metal or synthetic resin film in a matrix, and is formed into a predetermined shape by filling the inside with a fluid. The first king stage where the center is placed,
A molten metal or synthetic resin is injected into this mother mold.
The core is shrunk by the second step of curing and removing the fluid inside the core, and the inside of the cured product is removed.
Consisting of the third culm, etc., in either the pre-stage or post-stage of placing the core into the matrix in the first process,
It is characterized by filling the core with fluid.
この発明の他の１つのキャスティング用中子は、金属的
または合成樹脂フィルム製袋状体からなり、かつ内部に
流体を充填したさいに所定の形状どなり、流体を扱いた
きいに収縮−するようになされたものである。Another casting core of the present invention is made of a bag-like body made of metal or synthetic resin film, and when the inside is filled with a fluid, it takes on a predetermined shape and contracts when the fluid is handled. This is what was done.
」二記において、中空物成形用材料としては、ポリプロ
ピレンなどの流し造成形用合成樹脂、アルミニウム合金
などの金属が用いられる。中子用の材料のう１う金属的
としては、軟鋼およびステンレス鋼などからなるものが
用いられる。2, as the material for molding the hollow object, synthetic resin for cast molding such as polypropylene, and metal such as aluminum alloy are used. Other metal materials used for the core include mild steel and stainless steel.
合成樹脂フィルムとしては、たとえばボリア１へラフル
、４− ＩＩ土ブレン等のフッ素樹脂からなるものが用
いられる。中空物成形用月利が金属の場合には金属箔製
中子を用いるのがよい。また、中空物成形用材料が合成
樹脂の場合には、金属箔製中子おにび合成樹脂製中子の
いずれを用いてもよい。中子内への流体の充填は、中子
を母型内に配置する前に行なってもよいし、あるいは配
置した後に行なってもよい。流体としては、液体窒素、
窒素ガス、空気および水などが用いられる。As the synthetic resin film, for example, one made of fluororesin such as Boria 1 Herahul, 4-II Tobren, etc. is used. If the material for molding hollow objects is metal, it is better to use a metal foil core. Furthermore, when the material for molding the hollow object is a synthetic resin, either a metal foil core or a synthetic resin core may be used. The fluid may be filled into the core before or after the core is placed in the matrix. Liquid nitrogen,
Nitrogen gas, air, water, etc. are used.
この発明によれば、中子が、金属箔または合成樹脂フィ
ルム製袋状体からなり、かつ内部に流体を充填すること
により所定の形状とされるものであるから、中子製作作
業が従来のように面倒ではなくなる。また、溶融物を注
入して硬化させた後、硬化物の内部から中子を取出すさ
５−
４−
いには中子内の流体を抜いて中子を収縮さＩｉればよい
ので、この取出作業はきわめて容易となる。したがって
、中空物を容易に製造することができる。しかも、中子
は、袋状体がらなりかつ内部に流体を充填したきいに所
定の形状となり流体を扱いたさいに収縮するようになさ
れているので、同じ中子を何度も使用することが可能と
なる。According to this invention, the core is made of a bag-shaped body made of metal foil or synthetic resin film, and is shaped into a predetermined shape by filling the inside with fluid. It won't be as troublesome. In addition, after injecting the molten material and curing it, the core can be taken out from inside the cured material. The extraction work becomes extremely easy. Therefore, hollow objects can be easily manufactured. In addition, the core is designed to have a round bag-like shape and assume a predetermined shape when filled with fluid, and contract when handling the fluid, making it possible to use the same core over and over again. It becomes possible.
この発明を、以下実施例を示す図面に基いて説明する。This invention will be explained below based on drawings showing embodiments.
キャスティング用中子（１）は、軟鋼製金属箔の袋状体
からなる。この中子（１）は流体圧入口（２）を有して
おり、この流体圧入Ｄ （２＞に弁（３）を介して流体
供給管（４）が接続されている。したがって、弁（３）
を聞くことにより流体供給管（４）力日ら流体圧入口（
２）を経て液体窒素を中子（１）内に汀人することがｉ
ｉＪ能となり、弁（３〉を閉じることによって液体窒素
が封入され、中ｆ〈１）が２つのはばき部（ｌａ＞（１
）を備えた所定の形状となる。The casting core (1) is made of a bag-shaped body made of metal foil made of mild steel. This core (1) has a fluid pressure inlet (2), and a fluid supply pipe (4) is connected to this fluid pressure inlet D (2> via a valve (3). 3)
By listening to the fluid supply pipe (4) force the fluid pressure inlet (
It is possible to pour liquid nitrogen into the core (1) through step 2).
By closing the valve (3), liquid nitrogen is sealed, and the middle f<1) is filled with two flaps (la>(1).
).
にた、中子（１）は、内部の液体窒素を扱くことににっ
で収縮する。流体圧入ｒ’ｌ （２＞は一方のけばき部
（１ａ）に設けられている。Then, the core (1) contracts due to handling of the liquid nitrogen inside. The fluid pressure fitting r'l (2>) is provided in one of the furrowed portions (1a).
このような中子（１）を用いてアルミニウム製中空物を
キャスティングする方法はっぎの通りである。まず、下
型（５） Ｊ＝に所定の形状とされた中子（１）を配置
した後、上型（６〉をのゼる。このとき、型（５）（６
）間に設置′Ｊられた孔（７）力口ら流体圧入口（２）
が設けられたはばき部（１ａ）の先端が母型の外部に突
出するようにしでおく。ついで、図示しない湾口からア
ルミニウム溶湯を、−Ｊ二型（６）および下型（５）に
より形成された母型内に注入し、これを冷却して凝固さ
せる。アルミニウム溶湯（よ中子（１）内の液体窒素に
よっても内側から冷却される。また液体窒素は軟鋼製箔
からなる中子（１）を保護する役目も果す−。アルミニ
ウム溶湯が凝固したら、弁（３）を開いて中子（１）内
の液体窒素を扱いて中子（１）を収縮させる。The method for casting an aluminum hollow object using such a core (1) is as follows. First, after placing the core (1) with a predetermined shape on the lower mold (5) J=, the upper mold (6〉) is rolled out.At this time, the mold (5) (6
) installed between the hole (7) and the fluid pressure inlet (2)
The tip of the flap part (1a) provided with the mold is made to protrude to the outside of the mother mold. Next, molten aluminum is injected into the mother mold formed by the -J second mold (6) and the lower mold (5) from a bay opening (not shown), and is cooled and solidified. The molten aluminum is also cooled from the inside by liquid nitrogen inside the core (1).The liquid nitrogen also serves to protect the core (1), which is made of mild steel foil.Once the molten aluminum has solidified, the valve (3) is opened and the liquid nitrogen inside the core (1) is used to shrink the core (1).
そして最後に、収縮した中子（１）を、外側に引き出す
とともに型（５）（６）をはずすと、アルミニウム製中
空鋳物（８）が得られる。Finally, when the shrunken core (1) is pulled out and the molds (5) and (6) are removed, an aluminum hollow casting (8) is obtained.
上記実施例においては、中子（１）内に液体窒素を圧入
した後弁（３）を閉じているが、弁（３）を聞いておい
て鋳造作業中液体窒素を圧入１ノ続けてもよい。In the above embodiment, the valve (3) is closed after liquid nitrogen is pressurized into the core (1), but even if the valve (3) is turned on and liquid nitrogen is continuously pressurized for one round during the casting operation. good.
図面はこの発明の実施例を示し、第１図は流７一
体を充填した中子を母型内に配置した状態を示す断面図
、第２図はキャスティング完了後中子内から流体を扱い
た状態を示す断面図である。
（１）・・・中子、（５）・・・下型、（６）・・・上
型、（８）・・・アルミニウム中空鋳物。
以 上
特許出願人 株式会社 フジキン
９−
８−The drawings show an embodiment of the present invention, and Fig. 1 is a sectional view showing a state in which a core filled with Flow 7 is placed in a matrix, and Fig. 2 is a cross-sectional view showing a state in which a core filled with flow 7 is placed in a matrix, and Fig. 2 shows a state in which fluid is handled from within the core after casting is completed. It is a sectional view showing a state. (1) Core, (5) Lower mold, (6) Upper mold, (8) Aluminum hollow casting. Patent applicant: Fujikin Co., Ltd. 9-8-
Claims (2)
ム製袋状体り日うなり、かつ内部に流体を充填づること
により所定の形状となる。中子を配置づる第１工程と、
この母型内に金属または合成樹脂の溶融物を注入して硬
化さＶる第２工程と、中子内の流体を抜くことにより中
子を収縮させて、これを硬化物内部から取出づ第３工程
とよりなり、上記第１Ｔ程における中子の母型内への配
置の前段階および侵段階のいずれか一方に、中子内へ流
体を充１眞することを特徴とする金属製または合成樹脂
製中空物の１ヤステイング方法。(1) A bag-like body made of metal foil or synthetic resin film is shaped into a metal foil or synthetic resin film in an I-shape, and a predetermined shape is formed by filling the inside with a fluid. The first step of arranging the core;
The second step is to inject a molten metal or synthetic resin into the mother mold and harden it, and the second step is to shrink the core by removing the fluid inside the core and take it out from inside the cured product. A metallic or 1. A method for sanding synthetic resin hollow objects.
り、かつ内部に流体を充填したきいに所定の形状となり
、流体を扱いたさいに収縮するようになされた金属製ま
たは合成樹脂製中空物のキャスティング用中子。(2) A hollow object made of metal or synthetic resin that is made of a bag-like body made of metal foil or synthetic resin film, assumes a specified shape when filled with fluid, and contracts when the fluid is handled. Core for casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22950582A JPS59120344A (en) | 1982-12-28 | 1982-12-28 | Method and core for casting hollow object made of metal or plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22950582A JPS59120344A (en) | 1982-12-28 | 1982-12-28 | Method and core for casting hollow object made of metal or plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59120344A true JPS59120344A (en) | 1984-07-11 |
Family
ID=16893219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22950582A Pending JPS59120344A (en) | 1982-12-28 | 1982-12-28 | Method and core for casting hollow object made of metal or plastics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59120344A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63299844A (en) * | 1987-05-29 | 1988-12-07 | Keihin Seiki Mfg Co Ltd | Injection molding method |
| JPS6482910A (en) * | 1987-09-26 | 1989-03-28 | Idemitsu Petrochemical Co | Molding method of molded product having hollow part |
| EP0459486A2 (en) * | 1990-05-30 | 1991-12-04 | Nkk Corporation | Pattern for manufacturing mold |
| EP1749597A1 (en) * | 2005-07-25 | 2007-02-07 | Siemens Aktiengesellschaft | Casting apparatus and method for the production of castings |
| CN107498019A (en) * | 2016-06-14 | 2017-12-22 | 重庆瑞方渝美压铸有限公司 | Die casting |
-
1982
- 1982-12-28 JP JP22950582A patent/JPS59120344A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63299844A (en) * | 1987-05-29 | 1988-12-07 | Keihin Seiki Mfg Co Ltd | Injection molding method |
| JPS6482910A (en) * | 1987-09-26 | 1989-03-28 | Idemitsu Petrochemical Co | Molding method of molded product having hollow part |
| JPH0427007B2 (en) * | 1987-09-26 | 1992-05-08 | Idemitsu Sekyu Kagaku Kk | |
| EP0459486A2 (en) * | 1990-05-30 | 1991-12-04 | Nkk Corporation | Pattern for manufacturing mold |
| EP0459486A3 (en) * | 1990-05-30 | 1993-02-03 | Nkk Corporation | Pattern for manufacturing mold |
| EP1749597A1 (en) * | 2005-07-25 | 2007-02-07 | Siemens Aktiengesellschaft | Casting apparatus and method for the production of castings |
| CN107498019A (en) * | 2016-06-14 | 2017-12-22 | 重庆瑞方渝美压铸有限公司 | Die casting |
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