JPS624843A - Production of fiber-reinforced composite metallic material - Google Patents
Production of fiber-reinforced composite metallic materialInfo
- Publication number
- JPS624843A JPS624843A JP14304085A JP14304085A JPS624843A JP S624843 A JPS624843 A JP S624843A JP 14304085 A JP14304085 A JP 14304085A JP 14304085 A JP14304085 A JP 14304085A JP S624843 A JPS624843 A JP S624843A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- metal
- mold
- reinforcing
- 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
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、繊維強化金属複合材料の製造方法に係り、繊
維強化材にマトリックス金属の浸透しない部分を可及的
に減少せしめる方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for producing a fiber-reinforced metal composite material, and more particularly, to a method for reducing as much as possible the portion of the fiber-reinforced material that is not penetrated by matrix metal.
（従来の技術）
近年、炭素、アルミナ、炭化ケイ素等からなる高強度、
高弾性を有する繊維を強化材とし、アルミニウム、マグ
ネシウムのような軽金属又はそれらの合金をマトリック
スとした繊維強化金属複合材料（以下、ＦＲＭという。(Conventional technology) In recent years, high-strength materials made of carbon, alumina, silicon carbide, etc.
Fiber-reinforced metal composite material (hereinafter referred to as FRM) is a fiber-reinforced metal composite material (hereinafter referred to as FRM) in which highly elastic fibers are used as a reinforcing material and a light metal such as aluminum or magnesium or an alloy thereof is used as a matrix.
）の開発が活発化しており、またセラミックス粒子を強
化材とした金属複合材料の開発も活発化している。), and the development of metal composite materials using ceramic particles as reinforcement is also becoming more active.
これらのＦＲＭの製造方法の代表的なものとして加圧鋳
造方法がある。この方法は、有底円筒状の鋳型内に繊維
強化材を装入し予熱後、溶湯マトリックス金属を注入し
、その後前記鋳型に嵌装されたプランジャによりマトリ
ックス金属を繊維強化材へ加圧浸透させた後、凝固させ
て目的とするＦＲＭを得る方法である。A pressure casting method is a typical method for manufacturing these FRMs. In this method, a fiber reinforced material is charged into a cylindrical mold with a bottom, and after preheating, a molten matrix metal is injected, and then a plunger fitted in the mold is used to pressurize and infiltrate the matrix metal into the fiber reinforced material. After that, it is solidified to obtain the desired FRM.
（発明が解決しようとする問題点）
この加圧鋳造方法で問題となるのが加圧時の脱気である
。すなわち、鋳型内部空間の空気及びガス成分の脱気は
、プランジャの押し込みに従って、鋳型内面とプランジ
ャとの微小な隙間からの自然脱気に頼っている。装入し
た繊維強化材に空気が残っている場合、あるいは繊維強
化材を予熱する際の高温加熱時における繊維強化材の吸
着ガス成分がガス化した場合、これらの脱気が不十分で
あれば、その部分へ溶融マトリックス金属が圧入、浸透
されない。従って、鋳造後のＦＲＭの機械的強度もこの
未浸透部分が欠陥となり、所期のものが得られず、延い
ては製造歩留りの低下、コストの増大を招来するものと
なる。(Problems to be Solved by the Invention) A problem with this pressure casting method is degassing during pressurization. That is, the air and gas components in the mold interior space are degassed by natural degassing from a minute gap between the mold inner surface and the plunger as the plunger is pushed. If air remains in the charged fiber reinforced material, or if adsorbed gas components of the fiber reinforced material are gasified during high temperature heating when preheating the fiber reinforced material, if these are insufficiently degassed. , the molten matrix metal is not forced into or penetrated into that part. Therefore, the mechanical strength of the FRM after casting becomes defective due to the unpenetrated portion, and the desired mechanical strength cannot be obtained, resulting in a decrease in manufacturing yield and an increase in cost.
本発明はかかる問題に鑑みなされたものであって、繊維
強化材にマトリックス金属溶湯を加圧・浸透させてＦＲ
Ｍを製造するに際し、繊維強化材が装填された鋳型空間
に空気及びガス成分が残留せず、それ故高品質のＦＲＭ
が得られる製造方法を提供することを目的とする。・
（問題点を解決するための手段）
上記目的を達成するための本発明の特徴とする手段は、
加圧鋳造法において、鋳型の底部に通気性のある仕切り
部材を設け、該鋳型に装入された繊維強化材の上部を前
記溶湯で密封し、繊維強化材の占める鋳型内部空間の空
気及びガス成分を前記仕切り部材から真空脱気した後又
は真空脱気しつつ、前記溶湯を加圧して繊維強化材に浸
透させる点にある。The present invention was made in view of the above problem, and is an FR material in which molten matrix metal is pressurized and permeated into a fiber reinforced material.
When manufacturing FRM, no air or gas components remain in the mold space filled with fiber reinforcement, thus producing high quality FRM.
The purpose of the present invention is to provide a manufacturing method that can obtain the following. - (Means for solving the problem) The means characterized by the present invention for achieving the above object are as follows:
In the pressure casting method, a breathable partition member is provided at the bottom of the mold, and the upper part of the fiber reinforced material charged into the mold is sealed with the molten metal, thereby preventing air and gas from the mold interior space occupied by the fiber reinforced material. After or while vacuum degassing the components from the partition member, the molten metal is pressurized and permeated into the fiber reinforcing material.
（実施例） 以下、本発明の実施例を図面を参照して説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明を適用したＦＲＭの製造過程における鋳
型１の断面図である。同図において、鋳型本体２の外周
には予熱用のヒータ３が設けられており、本体２の下部
には通気性のある仕切り部材４が装着され、補強板５及
び底板６゛と共に鋳型ｌの底部を形成している。該仕切
り部材４は多孔質セラミックスや１５０〜３００メツシ
ユの金属製スクリーンで形成されており、その直下に設
けられた補強板５によってバックアップされている。該
補強板５には多数の脱気孔が設けられており、底板６に
開設された真空排気ロアに連通されている。FIG. 1 is a sectional view of a mold 1 in the process of manufacturing an FRM to which the present invention is applied. In the same figure, a heater 3 for preheating is provided on the outer periphery of the mold body 2, and a breathable partition member 4 is attached to the lower part of the mold body 2. forming the bottom. The partition member 4 is formed of porous ceramics or a metal screen of 150 to 300 meshes, and is backed up by a reinforcing plate 5 provided directly below it. The reinforcing plate 5 is provided with a large number of degassing holes, which communicate with a vacuum exhaust lower provided in the bottom plate 6.
８は該鋳型１に装入された繊維強化材であり、９はマト
リックス金属溶湯、１０は溶湯加圧用のプランジャであ
る。8 is a fiber reinforcing material charged into the mold 1, 9 is a matrix metal molten metal, and 10 is a plunger for pressurizing the molten metal.
次に本発明によるＦＲＭの製造方法を第１図に基づいて
説明する。Next, a method for manufacturing an FRM according to the present invention will be explained based on FIG.
予備成形によりかさ密度が高められた繊維強化材８を加
熱した鋳型１に装入し、３００℃以上マトリックス金属
の融点まで加熱する。かかる温度域に予熱するのは繊維
強化材８の繊維表面に吸着しているガス成分を離脱させ
ると同時に、繊維強化材８のマトリックス金属溶湯に対
する濡れ性を良くし、マトリックス金属溶湯が浸透し易
いようにするためである。尚、予熱によって、繊維強化
材が酸化劣化する場合には、不活性ガス雰囲気下にて予
熱を行うことが肝要である。The fiber reinforced material 8 whose bulk density has been increased by preforming is charged into the heated mold 1 and heated to 300° C. or more to the melting point of the matrix metal. Preheating to such a temperature range allows the gas components adsorbed on the fiber surface of the fiber reinforcing material 8 to be released, and at the same time improves the wettability of the fiber reinforcing material 8 to the matrix metal molten metal, making it easier for the matrix metal molten metal to penetrate. This is to ensure that. In addition, if the fiber reinforcing material deteriorates due to oxidation due to preheating, it is important to perform the preheating under an inert gas atmosphere.
次に、マトリックス金属溶湯を鋳型１に注入する。該溶
湯は鋳型１に注入しただけでは、その表面張力により繊
維強化材８には浸透せず、その上に溜った状態となる。Next, a matrix metal molten metal is poured into the mold 1. If the molten metal is simply injected into the mold 1, it will not penetrate into the fiber reinforcing material 8 due to its surface tension and will remain thereon.
すなわち、鋳型１に装入された繊維強化材８は、鋳型１
の底面、周側面及びマトリックス金属溶湯９によって取
り囲まれ、繊維強化材８の上部は該溶湯９により大気か
らシールされた状態となる。That is, the fiber reinforced material 8 charged into the mold 1
is surrounded by the bottom surface, peripheral side surface, and matrix metal molten metal 9, and the upper part of the fiber reinforced material 8 is sealed from the atmosphere by the molten metal 9.
かかる状態で真空脱気を行うと繊維強化材８が占める鋳
型１の内部空間の空気及びガス成分、すなわち繊維強化
材８内の空気及び予熱時に発生したガス成分は、鋳型１
底部の仕切り部材４、補強板５及び底板６の真空排気ロ
アを通って外部へ排出される。その後、プランジャ１０
で前記溶湯９を加圧することにより、繊維強化材とマト
リックス金属とが良好に密着した高品質の複合材料を得
ることができる。尚、鋳型１内の空気等を脱気した後に
限らず、鋳型１を真空引きしながら鋳型１内の空気及び
ガス成分を脱気しつつ、プランジャで加圧してもよい。When vacuum degassing is performed in such a state, the air and gas components in the internal space of the mold 1 occupied by the fiber reinforced material 8, that is, the air inside the fiber reinforced material 8 and the gas components generated during preheating, are removed from the mold 1.
It passes through the bottom partition member 4, the reinforcing plate 5, and the vacuum evacuation lower part of the bottom plate 6, and is discharged to the outside. After that, plunger 10
By pressurizing the molten metal 9, it is possible to obtain a high-quality composite material in which the fiber reinforcement material and the matrix metal are in good contact with each other. Note that the pressure is not limited to after the air and the like in the mold 1 have been degassed, but the plunger may be applied while the mold 1 is being evacuated and the air and gas components in the mold 1 are being degassed.
加圧によってマトリックス金属溶湯を繊維強化材の末端
まで加圧・浸透させ、凝固・冷却後、底板６及び補強板
５を取り外し、上部から押出して鋳型から複合材を取り
出す。The molten matrix metal is pressurized and permeated to the end of the fiber reinforced material, and after solidification and cooling, the bottom plate 6 and reinforcing plate 5 are removed, and the composite material is taken out from the mold by extrusion from the upper part.
第２図及び第３図は本発明の他の実施例における鋳型１
の断面図である。第２図及び第３図では、プランジャが
インナプランジャ１０ａとアウタプランジャ１０ｂの２
重構造になっている。かかる構造にすることにより、繊
維強化材の予備成形が不要になり、かつ任意充填率のＦ
ＲＭが容易に得られる。Figures 2 and 3 show a mold 1 in another embodiment of the present invention.
FIG. In FIGS. 2 and 3, there are two plungers, an inner plunger 10a and an outer plunger 10b.
It has a heavy structure. By adopting such a structure, preforming of the fiber reinforcing material is not necessary, and the F
RM is easily obtained.
すなわち、鋳型１内に予備成形のされていない繊維強化
材を装入し、その上に押え用の金属製スクリーン１１を
介して、第２図の如くインナープランジャ１０ａ及びア
ウタプランジャｌｏｂを共に押し下げ、繊維強化材を所
望のかさ密度に圧縮する。That is, a fiber reinforced material that has not been preformed is charged into the mold 1, and the inner plunger 10a and the outer plunger lob are both pushed down through the holding metal screen 11 as shown in FIG. Compress the fiber reinforcement to the desired bulk density.
マトリックス金属溶湯の注入時には、インナプランジャ
１０ａのみを引き抜き、アウタプランジャ１０ｂの内部
へ前記溶湯を注入する。この際、繊維強化材８は、アウ
タプランジャ１０ｂとスクリーン１１によって圧縮され
た状態を保持し、所望のかさ密度となっている。ここで
、先の実施例と同様に鋳型１内の空気及びガス成分を真
空脱気した後、あるいは脱気しつつインナプランジャ１
０ａによって、前記溶湯９を繊維強化材８へ加圧浸透す
るので、所期の繊維強化材の充填率の高品質ＦＲＭが、
容易に得られる。、また、繊維強化材の予備成形の必要
がなくなり、設備コスト、製造工程の簡素化が図れ、製
造コスト面で有利となる。When injecting the matrix metal molten metal, only the inner plunger 10a is pulled out and the molten metal is injected into the outer plunger 10b. At this time, the fiber reinforced material 8 is maintained in a compressed state by the outer plunger 10b and the screen 11, and has a desired bulk density. Here, as in the previous embodiment, after vacuum degassing the air and gas components in the mold 1, or while degassing the inner plunger 1.
0a, the molten metal 9 is infiltrated into the fiber reinforced material 8 under pressure, so that a high quality FRM with the desired fiber reinforced material filling rate is obtained.
easily obtained. In addition, there is no need for preforming of the fiber reinforced material, which simplifies equipment costs and manufacturing processes, which is advantageous in terms of manufacturing costs.
以上の発明はＦＲＭの製造方法について詳述したが、本
発明はセラミックス粒子等を強化材とした金属複合材料
一般について適用できるものである。Although the above invention has been described in detail with respect to the method for manufacturing FRM, the present invention can be applied to metal composite materials in general using ceramic particles or the like as a reinforcing material.
尚、第１図の鋳型１及びプランジャ１０を用いた場合、
鋳型１に予備成形をしていない繊維強化材を装入し、こ
れをプランジャ１０によりある程度予備成形することは
可能である。この際、無機バインダを添加することもで
きる。In addition, when using the mold 1 and plunger 10 shown in FIG.
It is possible to charge the mold 1 with unpreformed fiber reinforcement and preform it to some extent with the plunger 10. At this time, an inorganic binder may also be added.
（発明の効果）
以上説明した通り、本発明によれば、鋳型内に繊維強化
材を装入し、次いでマトリックス金属溶湯を注入して、
これを前記強化材に加圧・浸透させる前、あるいは加圧
・浸透を行いつつ、鋳型内部の空気及び予熱に伴い発生
したガス成分を真空脱気するので、マトリックス金属溶
湯が浸透しない部分を可及的に減少することができ、更
にマトリックス金属と繊維強化材とがより良く密着し、
機械的性質の向上、製品歩留りの向上、コストの低減を
図ることができる。(Effects of the Invention) As explained above, according to the present invention, a fiber reinforcing material is charged into a mold, then a matrix metal molten metal is poured,
Before pressurizing and infiltrating the reinforcing material, or while pressurizing and infiltrating, the air inside the mold and the gas components generated during preheating are vacuum degassed. In addition, the matrix metal and the fiber reinforcement are better adhered to each other.
It is possible to improve mechanical properties, improve product yield, and reduce costs.
第１図は、本発明方法の実施過程における鋳型の断面図
、第２図及び第３図は本発明方法の他の実施過程におけ
る鋳型の断面図であり、第２図は繊維強化材の予備成形
状態を、第３図はマトリックス金属溶湯の注入状態を示
す。
１・・・鋳型、４・・・仕切り部材、７・・・真空排気
口、８・・・繊維強化材、９・・・マトリックス金属溶
湯、１０・・・プランジャ、１０ａ・・・インナプラン
ジャ、１０ｂ・・・アウタプランジャ。
特 許 出 願 人 株式会社 神戸製鋼所化 理 人
弁理士 安 １） 敏 雄第３図FIG. 1 is a sectional view of a mold in the process of implementing the method of the present invention, FIGS. 2 and 3 are sectional views of the mold in other steps of implementing the method of the present invention, and FIG. 2 is a preliminary drawing of the fiber reinforced material. The molding state is shown in FIG. 3, and FIG. 3 shows the state in which the molten matrix metal is poured. DESCRIPTION OF SYMBOLS 1... Mold, 4... Partition member, 7... Vacuum exhaust port, 8... Fiber reinforcement material, 9... Matrix metal molten metal, 10... Plunger, 10a... Inner plunger, 10b...Outer plunger. Patent applicant Kobe Steel Corporation Manager Patent attorney Yasu 1) Toshio Figure 3
Claims (1)
金属溶湯を注入し、該溶湯を加圧して繊維強化材に浸透
させる金属複合材料の製造方法において、 鋳型の底部に通気性のある仕切り部材を設け、該鋳型に
装入された繊維強化材の上部を前記溶湯で密封し、繊維
強化材の占める鋳型内部空間の空気及びガス成分を前記
仕切り部材から真空脱気した後又は真空脱気しつつ、前
記溶湯を加圧して繊維強化材に浸透させることを特徴と
する繊維強化金属複合材料の製造方法。[Scope of Claim] A method for manufacturing a metal composite material in which a fiber reinforced material is charged into a mold and preheated, and then a matrix metal molten metal is injected, and the molten metal is pressurized to penetrate into the fiber reinforced material, comprising: A breathable partition member is provided in the mold, the upper part of the fiber reinforced material charged into the mold is sealed with the molten metal, and the air and gas components in the mold interior space occupied by the fiber reinforced material are vacuum degassed through the partition member. A method for producing a fiber-reinforced metal composite material, characterized in that the molten metal is pressurized and permeated into the fiber-reinforced material after or while being vacuum-degassed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14304085A JPS624843A (en) | 1985-06-28 | 1985-06-28 | Production of fiber-reinforced composite metallic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14304085A JPS624843A (en) | 1985-06-28 | 1985-06-28 | Production of fiber-reinforced composite metallic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS624843A true JPS624843A (en) | 1987-01-10 |
Family
ID=15329507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14304085A Pending JPS624843A (en) | 1985-06-28 | 1985-06-28 | Production of fiber-reinforced composite metallic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS624843A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63243248A (en) * | 1987-03-31 | 1988-10-11 | Nippon Light Metal Co Ltd | Wear-resistant magnesium-alloy casting and its production |
| JPH01212730A (en) * | 1988-02-18 | 1989-08-25 | Mitsubishi Alum Co Ltd | Manufacture of ceramic grain dispersion-type aluminum-based composite material |
| JPH02186606A (en) * | 1989-01-13 | 1990-07-20 | Nippondenso Co Ltd | Coil device |
| WO1990008610A1 (en) * | 1989-02-04 | 1990-08-09 | Mahle Gmbh | Process for manufacturing a casting, in particular of aluminium, provided with a porous insert |
| CN104588617A (en) * | 2015-01-23 | 2015-05-06 | 同济大学 | One-stage method for preparing metal matrix light-weighted composite material |
-
1985
- 1985-06-28 JP JP14304085A patent/JPS624843A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63243248A (en) * | 1987-03-31 | 1988-10-11 | Nippon Light Metal Co Ltd | Wear-resistant magnesium-alloy casting and its production |
| JPH0465138B2 (en) * | 1987-03-31 | 1992-10-19 | Nippon Light Metal Co | |
| JPH01212730A (en) * | 1988-02-18 | 1989-08-25 | Mitsubishi Alum Co Ltd | Manufacture of ceramic grain dispersion-type aluminum-based composite material |
| JPH02186606A (en) * | 1989-01-13 | 1990-07-20 | Nippondenso Co Ltd | Coil device |
| WO1990008610A1 (en) * | 1989-02-04 | 1990-08-09 | Mahle Gmbh | Process for manufacturing a casting, in particular of aluminium, provided with a porous insert |
| CN104588617A (en) * | 2015-01-23 | 2015-05-06 | 同济大学 | One-stage method for preparing metal matrix light-weighted composite material |
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