JPH0825002B2 - Composite material casting equipment - Google Patents
Composite material casting equipmentInfo
- Publication number
- JPH0825002B2 JPH0825002B2 JP61002717A JP271786A JPH0825002B2 JP H0825002 B2 JPH0825002 B2 JP H0825002B2 JP 61002717 A JP61002717 A JP 61002717A JP 271786 A JP271786 A JP 271786A JP H0825002 B2 JPH0825002 B2 JP H0825002B2
- Authority
- JP
- Japan
- Prior art keywords
- injection sleeve
- molten metal
- casting
- hot water
- water supply
- 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 title claims description 30
- 239000002131 composite material Substances 0.000 title claims description 14
- 238000002347 injection Methods 0.000 claims description 31
- 239000007924 injection Substances 0.000 claims description 31
- 229910052751 metal Inorganic materials 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 31
- 238000003756 stirring Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000696 magnetic material Substances 0.000 claims description 5
- 239000012779 reinforcing material Substances 0.000 claims description 3
- 239000010419 fine particle Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 13
- 239000012783 reinforcing fiber Substances 0.000 description 12
- 230000003014 reinforcing effect Effects 0.000 description 10
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 239000010953 base metal Substances 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000011246 composite particle Substances 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
【発明の詳細な説明】 ［発明の技術分野］ 本発明は複合材料鋳造装置に関し、特にアルミニウム
合金等の母金属に強化用微粒子または強化用繊維を均一
に分散させ、耐熱性、耐摩耗性、自己潤滑性、強度等を
向上させた複合材料を鋳造する装置に関する。Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a composite material casting apparatus, and more particularly, to uniformly disperse reinforcing fine particles or reinforcing fibers in a base metal such as an aluminum alloy to obtain heat resistance, wear resistance, and The present invention relates to a device for casting a composite material having improved self-lubricating property and strength.
［発明の技術的背景とその問題点］ 従来からアルミニウム合金等の母金属中に強化用微粒
子を分散させた複合材料を鋳造する場合には、母金属の
収容された溶解炉または保持炉に強化用微粒子を投入し
た後、溶湯をプロペラ等で撹拌し、強化用微粒子の分散
された溶湯をラドルで人手により汲取り鋳型に注入する
方法が行なわれている。[Technical Background of the Invention and Problems Thereof] When casting a composite material in which fine particles for strengthening are dispersed in a base metal such as an aluminum alloy, it is conventionally reinforced in a melting furnace or a holding furnace containing the base metal. A method has been performed in which after adding the working fine particles, the molten metal is stirred by a propeller or the like, and the molten metal in which the reinforcing fine particles are dispersed is manually drawn by a ladle into a casting mold.
しかしこの方法では、溶湯の撹拌を停止してからラド
ルで溶湯を汲取り、鋳型へ注入するまでに時間がかか
り、しかも重力鋳造法であるため溶湯と強化用微粒子と
の比重差により強化用微粒子が分離してしまい、均一な
分散が維持できないという問題がある。However, in this method, it takes time to pump the molten metal with a ladle after pouring the molten metal and to inject it into the mold, and since it is a gravity casting method, the strengthening fine particles are different due to the difference in specific gravity between the molten metal and the strengthening fine particles. However, there is a problem that uniform dispersion cannot be maintained.
また強化用繊維をアルミニウム合金等の母金属に複合
させるいわゆるFRM技術では、強化用繊維を用いて鋳造
物を部分的に強化する次の２つの方法が行なわれてい
る。In the so-called FRM technology in which reinforcing fibers are compounded with a mother metal such as an aluminum alloy, the following two methods of partially strengthening a casting using reinforcing fibers are performed.
すなわちその第１の方法は、第２図に示すように強化
用繊維で形成したプリフォーム１を300℃程度に予備加
熱し、これを鋳型２の中に仕込み、そこへ溶湯３を注入
し、プランジャ４で1000kg/cm2程度の高圧で加圧し、溶
湯を浸透凝固させる方法である。That is, the first method is to preheat a preform 1 formed of reinforcing fibers to about 300 ° C. as shown in FIG. 2, charge this in a mold 2, and inject the molten metal 3 therein. This is a method in which the plunger 4 is pressurized at a high pressure of about 1000 kg / cm 2 to permeate and solidify the molten metal.
またその第２の方法は、第３図に示すようにプリフォ
ーム１を鋳型２の一部に仕込み、溶湯３を流し込む方法
である。The second method is a method of charging the preform 1 into a part of the mold 2 and pouring the molten metal 3 as shown in FIG.
しかしながらこれらの方法は、いずれも鋳造物を部分
的に強化する場合にのみ適用可能な方法であり、強化用
繊維の均一分散が必要とされる場合には用いることがで
きないという問題があった。However, all of these methods are applicable only when partially reinforcing the casting, and cannot be used when uniform dispersion of reinforcing fibers is required.
なお、特開昭60−106656号公報には、垂直配置し上下
プランジャを有するスリーブ上部に設けた供給口から強
化材とを投入し電磁撹拌装置により撹拌した後、下部プ
ランジャを下降させ、プランジャ下方の側壁に開口させ
た溶湯出口からその外周に配置した金型のキャビティ内
に溶湯を供給して分散強化合金鋳物を製造する技術が開
示されているが、この方法では、溶湯が高い落差をもっ
てスリーブ内に供給されるため、気泡を巻き込み易く、
また、上下プランジャの駆動機構間に金型が配置されて
いるので、機構が複雑になる上に、大型の金型を使用す
るのが難しいという難点がある。In JP-A-60-106656, a reinforcing material is introduced from a supply port provided in an upper portion of a sleeve vertically arranged and having upper and lower plungers and stirred by an electromagnetic stirrer. A technique for manufacturing a dispersion-strengthened alloy casting by supplying the molten metal from the molten metal outlet opened on the side wall of the mold to the cavity of a mold arranged on the outer periphery thereof is disclosed. Since it is supplied inside, it is easy to entrap air bubbles,
Further, since the mold is arranged between the drive mechanisms of the upper and lower plungers, the mechanism is complicated and it is difficult to use a large mold.
［発明の目的］ 本発明はこのような従来技術の問題を解決するために
なされたもので、強化用微粒子または強化用繊維を母金
属中に均一に分散させ、耐熱性、耐摩耗性、自己潤滑
性、強度等を向上させた複合材料を鋳造することのでき
る複合材料鋳造装置を提供することを目的とする。[Object of the Invention] The present invention has been made in order to solve the problems of the prior art as described above, and uniformly disperses the reinforcing fine particles or the reinforcing fibers in the base metal to obtain heat resistance, abrasion resistance, An object of the present invention is to provide a composite material casting apparatus capable of casting a composite material having improved lubricity, strength and the like.
［発明の概要］ すなわち本発明は、ほぼ垂直に配設され下部側面に給
湯口を開口させた非磁性材料よりなる射出スリーブと、
前記射出スリーブの外周に装着された電磁撹拌装置と、
前記射出スリーブの下端側から挿入されたプランジャチ
ップと、前記射出スリーブに前記給湯口から溶湯を供給
する給湯装置と、前記射出スリーブの上端近傍に、該射
出スリーブの上端開口へ鋳造キャビティの給湯口を連通
させて装着された金型装置と、前記射出スリーブの上端
近傍に配設された前記金型装置の型開き時に前記射出ス
リーブ内に強化材を投入する投入装置とからなることを
特徴とする複合材料鋳造装置であって、強化用微粒子ま
たは強化用繊維を母金属中に均一に分散させて、耐熱
性、耐摩耗性、自己潤滑性、強度等を向上させた複合材
料を鋳造可能としたものである。[Summary of the Invention] That is, the present invention is an injection sleeve made of a non-magnetic material, which is arranged substantially vertically and has a hot water supply port opened on a lower side surface,
An electromagnetic stirring device mounted on the outer periphery of the injection sleeve,
A plunger tip inserted from the lower end side of the injection sleeve, a hot water supply device for supplying molten metal to the injection sleeve from the hot water supply port, a hot water supply port of a casting cavity to the upper end opening of the injection sleeve near the upper end of the injection sleeve And a loading device for loading a reinforcing material into the injection sleeve when the mold device is opened, the loading device being disposed near the upper end of the injection sleeve. A composite material casting apparatus capable of casting composite particles having improved heat resistance, wear resistance, self-lubricating property, strength, etc. by uniformly dispersing reinforcing fine particles or reinforcing fibers in a base metal. It was done.
なお本発明において使用される強化用微粒子として
は、SiC、Si2N4、WC、Al2O3、SiO2などの酸化物、窒化
物や黒鉛の微粒子等があげられる。Examples of the reinforcing fine particles used in the present invention include oxides such as SiC, Si 2 N 4 , WC, Al 2 O 3 and SiO 2 , fine particles of nitride and graphite.
これらの微粒子の粒径は分散傾向を良くするために５
μｍ以下のものが適当であり、強化用繊維も同じ理由に
より、繊維の長さで20μｍ以下、直径で１μｍ以下のも
のが適している。The particle size of these fine particles is 5 to improve the dispersion tendency.
A fiber having a length of 20 μm or less and a fiber having a diameter of 1 μm or less is suitable for the same reason.
なお強化用微粒子または強化用繊維の混合比は、体積
比で７〜10％程度とすることが好ましい。The mixing ratio of the reinforcing fine particles or the reinforcing fibers is preferably about 7 to 10% by volume.
［発明の実施例］ 以下本発明の実施例を第１図を参照にして説明する。[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIG.
第１図は実施例の複合材料鋳造装置を示す要部断面図
である。FIG. 1 is a sectional view of an essential part showing a composite material casting apparatus of an embodiment.
まず実施例の複合材料鋳造装置の構成について説明す
る。First, the structure of the composite material casting apparatus of the embodiment will be described.
本実施例はアルミニウム合金等の母金属供給部Ａと、
溶湯撹拌注入部Ｂと、鋳造金型部Ｃとからその主体部分
が構成されている。In this embodiment, a mother metal supply unit A such as an aluminum alloy is used,
The molten metal stirring injection part B and the casting mold part C constitute the main part.
母金属供給部Ａは、溶湯11を収容する保持炉12と、こ
の溶湯11を保温する保温用ヒータ13と、セラミックスの
ような非磁性材料よりなり一端を保持炉12の給湯口に接
続し他端を後述する射出スリーブの開口へ接続した給湯
管14と、この給湯管14の外周に装着された電磁ポンプ15
とからなっている。The mother metal supply unit A is composed of a holding furnace 12 for containing the molten metal 11, a heat-retaining heater 13 for keeping the molten metal 11 warm, and a non-magnetic material such as ceramics, one end of which is connected to the hot water supply port of the holding furnace 12. A hot water supply pipe 14 whose end is connected to an opening of an injection sleeve described later, and an electromagnetic pump 15 mounted on the outer circumference of the hot water supply pipe 14.
It consists of
また溶湯撹拌注入部Ｂは、下部に溶湯の供給される開
口を有しほぼ垂直に保持された構造のセラミックスのよ
うな非磁性材料よりなる射出スリーブ16と、射出スリー
ブ16内に挿入され開口から供給された溶湯を押しあげる
セラミックスのような非磁性材料よりなるプランジャチ
ップ17と、強化用微粒子または強化用繊維を射出スリー
ブ16内の上部開口部から投入するための投入装置18と、
射出スリーブ部16の外周に装着され溶湯と投入された強
化用微粒子または強化用繊維を均一に混合撹拌させる電
磁撹拌装置19とからなっている。Further, the molten metal stirring and injecting section B has an injection sleeve 16 made of a non-magnetic material such as ceramics having a structure in which a molten metal is supplied to the lower portion and is held substantially vertically, and an injection sleeve 16 inserted into the injection sleeve 16 from the opening. A plunger tip 17 made of a non-magnetic material such as ceramics that pushes up the supplied molten metal, and a charging device 18 for charging the reinforcing fine particles or the reinforcing fibers from the upper opening in the injection sleeve 16.
The electromagnetic stirring device 19 is attached to the outer circumference of the injection sleeve portion 16 and uniformly mixes and stirs the molten metal and the strengthening fine particles or reinforcing fibers charged therein.
さらに鋳造金型部Ｃは、ダイカストマシンを構成する
固定ダイプレート20と、固定ダイプレート20を支えるた
めの複数本のタイバー21およびタイバーナット22と、固
定ダイプレート20上で射出スリーブ16の上部に固着され
た固定金型23と、キャビティ25を有する移動金型24とか
ら構成されている。Further, the casting mold part C includes a fixed die plate 20 constituting the die casting machine, a plurality of tie bars 21 and tie bar nuts 22 for supporting the fixed die plate 20, and an upper portion of the injection sleeve 16 on the fixed die plate 20. It is composed of a fixed mold 23 fixedly attached and a movable mold 24 having a cavity 25.
次にこのように構成された複合材料鋳造装置の動作に
ついて説明する。Next, the operation of the composite material casting apparatus configured as described above will be described.
まずプランジャチップ17を最下位置にセットし、移動
金型24を上方に移動させた状態で電磁ポンプ15を作動さ
せ、保持炉12内の溶湯を定量だけ射出スリーブ16内へ供
給する。次に電磁ポンプ15を停止させてプランジャチッ
プ17を17aの位置まで上昇させて開口をふさぎ電磁撹拌
装置19を作動させて溶湯の撹拌を開始する。この状態で
強化用微粒子または強化用繊維を投入装置18により射出
スリーブ16内の溶湯へ投入した後移動金型24を下降さ
せ、固定金型23と型締めする。所定の時間電磁撹拌装置
19により溶湯と強化用微粒子または強化用繊維とを撹拌
した後、プランジャチップ17を17aの位置からさらに上
昇させ、溶湯を撹拌しながらこれを鋳造キャビティ25に
圧入する。First, the plunger tip 17 is set at the lowermost position, the electromagnetic pump 15 is operated with the movable die 24 moved upward, and the molten metal in the holding furnace 12 is supplied into the injection sleeve 16 in a fixed amount. Next, the electromagnetic pump 15 is stopped, the plunger tip 17 is raised to the position of 17a, the opening is closed, and the electromagnetic stirring device 19 is operated to start stirring the molten metal. In this state, the reinforcing particles or the reinforcing fibers are charged into the molten metal in the injection sleeve 16 by the charging device 18, and then the moving mold 24 is lowered and clamped with the fixed mold 23. Electromagnetic stirrer for specified time
After the molten metal and the reinforcing fine particles or the reinforcing fibers are stirred by 19, the plunger tip 17 is further raised from the position of 17a, and this is pressed into the casting cavity 25 while stirring the molten metal.
鋳込み時間は鋳込み重量により変わるが、一般的には
１〜３秒以内とすることが可能である。The casting time varies depending on the weight of the casting, but generally it can be set within 1 to 3 seconds.
なおこのとき電磁撹拌装置19は撹拌過程で溶湯をジュ
ール熱により発熱させるので、射出スリーブ16内の溶湯
の鋳造温度は撹拌中所定の温度以上に保つことができ
る。At this time, the electromagnetic stirring device 19 heats the molten metal by Joule heat during the stirring process, so that the casting temperature of the molten metal in the injection sleeve 16 can be maintained at a predetermined temperature or higher during stirring.
［発明の効果］ 以上説明したように、本発明の複合材料鋳造装置は、
強化用微粒子または強化用繊維をアルミニウム合金のよ
うな母金属中に均一に分散させることができ、耐熱性、
耐摩耗性、自己潤滑性、強度等を向上させた複合材料を
鋳造することができる。また、溶湯を下部から射出スリ
ーブ内に供給するので気泡の巻き込みがなく、また、金
型は射出スリーブの上部に装着したので大型の鋳物の製
造も容易であるという利点がある。[Effects of the Invention] As described above, the composite material casting apparatus of the present invention is
Fine particles for reinforcement or fibers for reinforcement can be uniformly dispersed in a mother metal such as aluminum alloy, heat resistance,
It is possible to cast a composite material having improved wear resistance, self-lubricating property, strength and the like. Further, since the molten metal is supplied into the injection sleeve from the bottom, bubbles are not entrained, and since the mold is mounted on the top of the injection sleeve, it is easy to manufacture a large casting.
【図面の簡単な説明】 第１図は本発明の実施例の複合材料鋳造装置を示す要部
断面図、第２図は従来技術の代表例である高圧鋳造法を
示す図、第３図は前記同様従来技術の代表例である重力
鋳造法を示す図である。 12……保持炉 13……保温用ヒータ 14……給湯管 15……電磁ポンプ 16……射出スリーブ 17……プランジャチップ 18……投入装置 19……電磁撹拌装置 20……固定ダイプレート 21……タイバー 22……タイバーナット 23……固定金型 24……移動金型 25……キャビティBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an essential part showing a composite material casting apparatus of an embodiment of the present invention, FIG. 2 is a view showing a high pressure casting method which is a typical example of the prior art, and FIG. It is a figure which shows the gravity casting method which is a typical example of a prior art like the above. 12 …… Holding furnace 13 …… Insulation heater 14 …… Hot water supply pipe 15 …… Electromagnetic pump 16 …… Injection sleeve 17 …… Plunger tip 18 …… Injection device 19 …… Electromagnetic stirrer 20 …… Fixed die plate 21… … Tie bar 22 …… Tie bar nut 23 …… Fixed mold 24 …… Moving mold 25 …… Cavity
Claims (1)
口させた非磁性材料よりなる射出スリーブと、前記射出
スリーブの外周に装着された電磁撹拌装置と、前記射出
スリーブの下端側から挿入されたプランジャチップと、
前記射出スリーブに前記給湯口から溶湯を供給する給湯
装置と、前記射出スリーブの上端近傍に、該射出スリー
ブの上端開口へ鋳造キャビティの給湯口を連通させて装
着された金型装置と、前記射出スリーブの上端近傍に配
設された前記金型装置の型開き時に前記射出スリーブ内
に強化材を投入する投入装置とからなることを特徴とす
る複合材料鋳造装置。1. An injection sleeve made of a non-magnetic material, which is arranged substantially vertically and has a hot water supply opening on the lower side surface, an electromagnetic stirring device mounted on the outer circumference of the injection sleeve, and from the lower end side of the injection sleeve. With the inserted plunger tip,
A hot water supply device for supplying molten metal to the injection sleeve from the hot water supply port, a mold device installed near the upper end of the injection sleeve, the hot water supply port of the casting cavity being connected to the upper end opening of the injection sleeve, and the injection device A composite material casting apparatus comprising: a charging device that charges a reinforcing material into the injection sleeve when the mold device is opened near the upper end of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61002717A JPH0825002B2 (en) | 1986-01-09 | 1986-01-09 | Composite material casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61002717A JPH0825002B2 (en) | 1986-01-09 | 1986-01-09 | Composite material casting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62161450A JPS62161450A (en) | 1987-07-17 |
| JPH0825002B2 true JPH0825002B2 (en) | 1996-03-13 |
Family
ID=11537059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61002717A Expired - Lifetime JPH0825002B2 (en) | 1986-01-09 | 1986-01-09 | Composite material casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0825002B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4901781A (en) * | 1988-08-30 | 1990-02-20 | General Motors Corporation | Method of casting a metal matrix composite |
| WO1992021458A1 (en) * | 1991-03-22 | 1992-12-10 | Massachusetts Institute Of Technology | Method and apparatus for producing metal matrix composites using electromagnetic body forces |
| US5755272A (en) * | 1993-12-02 | 1998-05-26 | Massachusetts Institute Of Technology | Method for producing metal matrix composites using electromagnetic body forces |
| KR100554093B1 (en) * | 2004-02-04 | 2006-02-22 | 주식회사 나노캐스트코리아 | Reactor High Molding Device |
| DE102007001780A1 (en) * | 2007-01-05 | 2008-07-10 | Bühler Druckguss AG | Process for the production of fiber-reinforced die-cast parts |
| KR102121979B1 (en) * | 2018-10-24 | 2020-06-12 | 주식회사 퓨쳐캐스트 | A die casting device comprising a movable electromagnetic control coil module |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5112328A (en) * | 1974-07-22 | 1976-01-30 | Ono Atsumi | HANJUTAIC HUZOYODAIKASUTOKI |
| JPS60106656A (en) * | 1983-11-10 | 1985-06-12 | Toyota Motor Corp | Production of dispersion strengthened alloy casting |
| JPS60152357A (en) * | 1984-01-18 | 1985-08-10 | Toshiba Mach Co Ltd | Feeding method to plunger sleeve |
-
1986
- 1986-01-09 JP JP61002717A patent/JPH0825002B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62161450A (en) | 1987-07-17 |
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