JPH0470377B2 - - Google Patents
Info
- Publication number
- JPH0470377B2 JPH0470377B2 JP58125999A JP12599983A JPH0470377B2 JP H0470377 B2 JPH0470377 B2 JP H0470377B2 JP 58125999 A JP58125999 A JP 58125999A JP 12599983 A JP12599983 A JP 12599983A JP H0470377 B2 JPH0470377 B2 JP H0470377B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon fiber
- carbon fibers
- carbonaceous
- aluminum alloy
- cfrm
- 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
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 71
- 239000004917 carbon fiber Substances 0.000 claims description 71
- 229910000838 Al alloy Inorganic materials 0.000 claims description 21
- 239000002344 surface layer Substances 0.000 claims description 20
- 239000002131 composite material Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 33
- 238000000034 method Methods 0.000 description 11
- 239000000835 fiber Substances 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 6
- -1 aluminum-silicon-copper Chemical compound 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 229910000676 Si alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000000744 eyelid Anatomy 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- MKPXGEVFQSIKGE-UHFFFAOYSA-N [Mg].[Si] Chemical compound [Mg].[Si] MKPXGEVFQSIKGE-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、内燃機関のピストンピン、ピスト
ンリングや、軸、軸受、シリンダライナー、メカ
ニカルシール等を構成するのに好適な炭素繊維強
化アルミニウム合金複合材料に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a carbon fiber-reinforced aluminum alloy composite material suitable for constructing piston pins, piston rings, shafts, bearings, cylinder liners, mechanical seals, etc. of internal combustion engines. Regarding.
従来の技術
炭素繊維でアルミニウム合金を強化してなる炭
素繊維強化アルミニウム合金複合材料（以下、
CFRMという）は、金属のみからなる材料にく
らべて比強度、比弾性率が高く、耐摩耗性にも優
れていることから、いろいろな分野で注目されて
いる。Conventional technology Carbon fiber-reinforced aluminum alloy composite material (hereinafter referred to as
CFRM) is attracting attention in various fields because it has higher specific strength and specific modulus of elasticity than materials made only of metal, and has excellent wear resistance.
そのようなCFRMとしては、たとえば特公昭
55−36257号公報に記載されているようなものが
知られている。この従来のCFRMは、強度や剛
性の発現効果が大きい高強度、高弾性率炭素繊維
と、耐摩耗性に優れた低弾性率炭素繊維とを併用
し、これら２種類の炭素繊維でアルミニウム合金
を強化してなるものである。たとえば、内燃機関
のコンロツドの場合、高い強度と剛性が要求され
るロツド部には高強度、高弾性率炭素繊維を使用
し、一方、耐摩耗性が要求される、ロツド部の両
端の、いわゆる目がね部には低弾性率炭素繊維を
使用している。２種類の炭素繊維を部位によつて
使いわけているわけである。しかしながら、ロツ
ド部には高強度、高弾性率炭素繊維を使用してい
るから、この部位の耐摩耗性はあまり期待でき
ず、一方、目がね部には低弾性率炭素繊維を使用
しているから、この部位では、耐摩耗性は期待で
きるものの強度や剛性の発現はあまり期待できな
い。 As such CFRM, for example,
The one described in Japanese Patent No. 55-36257 is known. This conventional CFRM uses a combination of high-strength, high-modulus carbon fiber, which has a large effect on developing strength and rigidity, and low-modulus carbon fiber, which has excellent wear resistance, and uses these two types of carbon fiber to create an aluminum alloy. It is something that is strengthened. For example, in the case of connecting rods for internal combustion engines, high-strength, high-modulus carbon fiber is used for the rod portions that require high strength and rigidity, while so-called so-called Low modulus carbon fiber is used for the eyelids. Two types of carbon fiber are used depending on the part. However, since the rod part uses high-strength, high-modulus carbon fiber, this part cannot be expected to have much wear resistance.On the other hand, the eyelid part uses low-modulus carbon fiber. Therefore, although wear resistance can be expected in this part, strength and rigidity cannot be expected to develop much.
すなわち、マトリクスがアルミニウム合金であ
るとき、成形時や使用時にアルミニウムと炭素繊
維とが反応して両者の界面に脆いカーバイドを作
りやすいが、そうなるとCFRMの強度が低下し
てしまう。かかる反応は、高弾性率炭素繊維を使
用するときにはほとんど起こらないが、低弾性率
炭素繊維を使用するときには著しい。換言すれ
ば、上記従来のCFRMは、全体に強度や剛性が
要求され、ある部位についてはこれらの特性に加
えてさらに耐摩耗性が要求されるような用途には
むかない。そのため、用途が大きく制限される。 That is, when the matrix is an aluminum alloy, the aluminum and carbon fibers tend to react during molding or use to form brittle carbide at the interface between the two, but this will reduce the strength of the CFRM. Such reactions hardly occur when using high modulus carbon fibers, but are significant when using low modulus carbon fibers. In other words, the conventional CFRM described above is not suitable for applications where strength and rigidity are required as a whole, and wear resistance is required in addition to these characteristics in certain parts. Therefore, its uses are greatly limited.
この問題を、内燃機関のピストンピンの場合に
ついて説明するに、ピストンピンには、大きな曲
げ応力が繰り返し加わるから、強度や剛性はどの
部位においても高くなければならない。一方、コ
ンロツドやピストンが嵌合する部位の表面、すな
わち、中央部や両端部の表面においては、耐摩耗
性もまた、良好である必要がある。換言すれば、
中央部と両端部においては、強度、剛性、耐摩耗
性といつた特性のすべてが要求されるのである
が、上記従来のCFRMでは、かかる要求を満足
するのが難しい。 To explain this problem in the case of a piston pin for an internal combustion engine, the piston pin is repeatedly subjected to large bending stress, so it must have high strength and rigidity at all parts. On the other hand, the surface where the connecting rod or piston fits, that is, the surface of the center and both ends, must also have good wear resistance. In other words,
All of the properties such as strength, rigidity, and wear resistance are required for the center and both ends, but it is difficult for the conventional CFRM mentioned above to satisfy these requirements.
発明が解決しようとする課題
この発明の目的は、従来のCFRMの上述した
問題点を解決し、強度、剛性、耐摩耗性といつた
諸特性がともに高く、しかも、バランスよく備わ
つているCFRMを提供するにある。Problems to be Solved by the Invention The purpose of the present invention is to solve the above-mentioned problems of conventional CFRM, and to create a CFRM that has high strength, rigidity, wear resistance, and other properties and is also well-balanced. is to provide.
課題を解決するための手段
上記目的を達成するために、この発明は、炭素
質炭素繊維と黒鉛質炭素繊維とでアルミニウム合
金を強化してなる棒状複合材料であつて、上記炭
素質炭素繊維と黒鉛質炭素繊維とが層をなしてい
るとともに上記炭素質炭素繊維が表層部に配置さ
れていることを特徴とする炭素繊維強化アルミニ
ウム合金複合材料を提供する。複合材料は中央棒
状であつても、中空棒状（筒状、管状等）であつ
ても、いずれでもよいが、中実棒状の場合には、
炭素質炭素繊維は、外表層部および／または内表
層部に配置されている。Means for Solving the Problems In order to achieve the above object, the present invention provides a rod-shaped composite material made by reinforcing an aluminum alloy with carbonaceous carbon fibers and graphitic carbon fibers, the above-mentioned carbonaceous carbon fibers and The present invention provides a carbon fiber-reinforced aluminum alloy composite material characterized in that graphitic carbon fibers form a layer and the carbonaceous carbon fibers are arranged in a surface layer. The composite material may have a central rod shape or a hollow rod shape (cylindrical, tubular, etc.), but in the case of a solid rod shape,
The carbonaceous carbon fibers are arranged in the outer surface layer portion and/or the inner surface layer portion.
上記において、炭素質炭素繊維とは、ポリアク
リルニトリル、ピツチ、レーヨン等を焼成して得
られるもので、JIS R7601に基いて測定した引張
弾性率が30000Kgｆ／mm2未満、好ましくは26000Kg
ｆ／mm2以下の炭素繊維である。このような炭素質
炭素繊維は、CFRMに、主として耐摩耗性や硬
さを与える。 In the above, carbonaceous carbon fiber is obtained by firing polyacrylonitrile, pitch, rayon, etc., and has a tensile modulus of less than 30,000 Kgf/mm 2 , preferably 26,000 Kg as measured based on JIS R7601.
It is carbon fiber with f/mm 2 or less. Such carbonaceous carbon fibers primarily provide wear resistance and hardness to CFRM.
また、黒鉛質炭素繊維とは、やはりポリアクリ
ルニトリル、ピツチ、レーヨン等をプリカーサー
とするものであるが、焼成温度が炭素質炭素繊維
のそれよりも高く、同様に定義する引張弾性率が
30000Kgｆ／mm2以上、好ましくは35000Kgｆ／mm2以
上の炭素繊維である。この黒鉛質炭素繊維は、
CFRMに、主として強度や剛性を与える。なお、
黒鉛質炭素繊維は、より優れた強度をもつ
CFRMを得ることができるという理由で、表面
酸化処理を施していないものであるのが好まし
い。 Furthermore, graphitic carbon fibers are those whose precursors are polyacrylonitrile, pitch, rayon, etc., but the firing temperature is higher than that of carbonaceous carbon fibers, and the similarly defined tensile modulus is higher than that of carbonaceous carbon fibers.
The carbon fiber has a carbon fiber density of 30,000 Kgf/mm 2 or more, preferably 35,000 Kgf/mm 2 or more. This graphitic carbon fiber is
Mainly gives strength and rigidity to CFRM. In addition,
Graphitic carbon fiber has better strength
Since CFRM can be obtained, it is preferable that the surface is not subjected to oxidation treatment.
さて、以下において、単に「炭素繊維」という
ときは、炭素質炭素繊維および黒鉛質炭素繊維の
双方をいうものとする。 In the following, the term "carbon fiber" refers to both carbonaceous carbon fiber and graphitic carbon fiber.
炭素繊維は、CFRMの、所望する形状、用途、
特性等に応じて、マトリクスであるアルミニウム
合金中に連続繊維、短繊維またはミルドフアイバ
ーの形態で包含される。連続繊維の場合、一方向
に引き揃えて配置したり、ヘリカル巻して配置し
たりする。また、織物にしてすし巻状に巻回、配
置してもよい。短繊維やミルドフアイバーは、ア
ルミニウム合金中にランダムに分散した状態で包
含される。短繊維は、それをマツトにして織物と
同様に使つてもよい。もちろん、連続繊維と短繊
維やミルドフアイバーとを組み合わせて使用する
こともできる。 Carbon fiber is CFRM, the desired shape, use,
Depending on the properties, etc., it is included in the aluminum alloy matrix in the form of continuous fibers, short fibers, or milled fibers. In the case of continuous fibers, they may be arranged in one direction or helically wound. Alternatively, it may be made into a fabric and wound and arranged in a sushi roll shape. Short fibers and milled fibers are included in the aluminum alloy in a randomly dispersed state. Short fibers may be made into mats and used in the same way as textiles. Of course, it is also possible to use a combination of continuous fibers, short fibers, or milled fibers.
CFRM中における炭素繊維の場合は、30〜75
体積％、好ましくは50〜70体積％である。なお、
炭素質炭素繊維と黒鉛質炭素繊維との使用割合
は、用途等に応じて決めればよい。 30-75 for carbon fiber in CFRM
% by volume, preferably 50-70% by volume. In addition,
The ratio of the carbonaceous carbon fiber to the graphitic carbon fiber may be determined depending on the application and the like.
上述した炭素繊維によつて強化されるアルミニ
ウム合金は、たとえば、アルミニウム−ケイ素合
金、アルミニウム−ケイ素−銅合金、アルミニウ
ム−ケイ素−マグネシウム合金、マグネシウム−
アルミニウム合金、チタン−アルミニウム−クロ
ム合金、銅−アルミニウム合金、銅−アルミニウ
ム−鉄合金等で、用途等に応じて選択する。アル
ミニウムが主成分であつても、そうでなくてもよ
い。 The above-mentioned aluminum alloys reinforced with carbon fibers include, for example, aluminum-silicon alloys, aluminum-silicon-copper alloys, aluminum-silicon-magnesium alloys, and magnesium-silicon alloys.
Select from aluminum alloy, titanium-aluminum-chromium alloy, copper-aluminum alloy, copper-aluminum-iron alloy, etc. depending on the application. Aluminum may or may not be the main component.
さて、この発明においては、上記２種類の炭素
繊維が層をなしている。すなわち、CFRMが中
実棒状である場合には、炭素質炭素繊維を表層部
に配置し、それ以外の部位には黒鉛質炭素繊維を
配置する。中実棒状のものは、全体としてみた強
度や剛性が高いうえに、表層部に配置した炭素質
炭素繊維によつて耐摩耗性が向上することから、
軸や、内燃機関のピストンピンの構成材料として
好適である。この場合、炭素繊維は、長手方向に
引き揃えた状態で配置されても、長手方向に対し
て±15〜30°の角度をもつようにヘリカル巻され
た状態で配置されても、いずれでもよい。また、
両者が併用されてもよい。 Now, in this invention, the above two types of carbon fibers form a layer. That is, when the CFRM has a solid rod shape, carbonaceous carbon fibers are arranged in the surface layer part, and graphitic carbon fibers are arranged in other parts. Solid rod-shaped products not only have high strength and rigidity as a whole, but also have improved wear resistance due to the carbonaceous carbon fibers placed on the surface layer.
It is suitable as a constituent material for shafts and piston pins of internal combustion engines. In this case, the carbon fibers may be arranged in a longitudinally aligned state or helically wound at an angle of ±15 to 30° with respect to the longitudinal direction. . Also,
Both may be used together.
中空棒状をしている場合には、炭素質炭素繊維
は、外側の表層部、すなわち外表層部か、内側の
表層部、すなわち内表層部か、外表層部および内
表層部の双方に配置され、それ以外の部位には黒
鉛質炭素繊維が配置される。たとえば、外表層部
に炭素質炭素繊維を一方向および／または斜交巻
して配置し、それ以外の部位に黒鉛質炭素繊維を
上記と同様に配置してなるものは、全体としてみ
た機械的強度や剛性が高いうえに、外表層部の耐
摩耗性が高いので、軸として好適である。同様に
構成した短い中空棒状（円筒状）のものは、内燃
機関のピストンリングとして好適である。 In the case of a hollow rod shape, the carbonaceous carbon fibers are arranged either in the outer surface layer, that is, the outer surface layer, or in the inner surface layer, that is, the inner surface layer, or in both the outer surface layer and the inner surface layer. , graphitic carbon fibers are arranged in other parts. For example, a product in which carbonaceous carbon fibers are arranged in one direction and/or diagonally wound on the outer surface layer, and graphitic carbon fibers are arranged in the same manner as above in other parts, has a mechanical It is suitable as a shaft because it has high strength and rigidity, and the outer surface layer has high wear resistance. A short hollow rod-like (cylindrical) ring having a similar structure is suitable as a piston ring for an internal combustion engine.
また、内表層部に炭素質炭素繊維を配置し、他
のすべての部位に黒鉛質炭素繊維を配置してなる
ものは、たとえば軸受、シリンダーライナー、メ
カニカルシールとして好適である。 Further, a structure in which carbonaceous carbon fibers are arranged in the inner surface layer part and graphitic carbon fibers are arranged in all other parts is suitable for use as, for example, bearings, cylinder liners, and mechanical seals.
上記において、炭素質炭素繊維が存在する層の
厚みは、主として黒鉛質炭素繊維によつて与えら
れる強度や剛性をできるだけ低下させないため
に、薄いのが好ましい。すなわち、炭素質炭素繊
維の層の厚みは、それによつて形成される面に耐
摩耗性、硬さ等の諸特性を付与するのに必要最少
限であればよく、５〜2000μm、好ましくは10〜
500μmである。 In the above, the thickness of the layer in which the carbonaceous carbon fibers are present is preferably thin in order not to reduce the strength and rigidity provided by the graphitic carbon fibers as much as possible. That is, the thickness of the carbonaceous carbon fiber layer may be the minimum necessary to impart various properties such as wear resistance and hardness to the surface formed thereby, and is 5 to 2000 μm, preferably 10 μm. ~
It is 500μm.
この発明のCFRMは、従来公知の方法によつ
て製造することができる。たとえば、イオンプレ
ーテイング法、メツキ法、拡散接合法、粉末治金
法、箔治金法、焼結法、高圧鋳造法等を使用する
ことができる。なかでも、製造コストが安い高圧
鋳造法によるのが好ましい。 The CFRM of the present invention can be produced by a conventionally known method. For example, an ion plating method, a plating method, a diffusion bonding method, a powder metallurgy method, a foil metallurgy method, a sintering method, a high pressure casting method, etc. can be used. Among these, it is preferable to use the high-pressure casting method because of its low manufacturing cost.
高圧鋳造法は、成形用の型の中に、炭素質炭素
繊維と黒鉛質炭素繊維とを組み合わせた、所望の
形状の予備成形体を入れた後、その型にアルミニ
ウム合金の溶湯を200〜2000Kg／cm2の圧力で注入
して予備成形体に含浸し、炭素繊維とアルミニウ
ム合金とを複合する方法である。この場合、溶湯
の温度は、アルミニウム合金の融点から、融点以
上250℃程度の範囲に選定する。 In the high-pressure casting method, a preform of the desired shape, which is a combination of carbonaceous carbon fiber and graphite carbon fiber, is placed in a mold, and then 200 to 2000 kg of molten aluminum alloy is poured into the mold. This is a method of composite carbon fiber and aluminum alloy by injecting it at a pressure of /cm 2 to impregnate the preform. In this case, the temperature of the molten metal is selected from the melting point of the aluminum alloy to a range of about 250°C above the melting point.
実施例
東レ株式会社製の炭素質炭素繊維“トレカ”
T300（単糸数：3000本、引張強度：360Kgｆ／mm2、
引張弾性率：23500Kgｆ／mm2）と、同社製黒鉛質
炭素繊維“トレカ”M40（単糸数：3000本、引張
強度：280Kgｆ／mm2、引張弾性率：40000Kgｆ／
mm2）とを使用し、外径が25mmのマンドレルの上
に、フイラメントワインデイング法によつて、前
者が外表層部になり、後者がその内側になるよ
う、それぞれ±25°の角度でヘリカル巻し、予備
成形体を得た。Example: Carbonaceous carbon fiber “Trading Card” manufactured by Toray Industries, Inc.
T300 (number of single threads: 3000, tensile strength: 360Kgf/mm 2 ,
Tensile modulus: 23,500 Kgf/mm 2 ) and graphite carbon fiber "Torayka" M40 made by the same company (number of single threads: 3,000, tensile strength: 280 Kgf/mm 2 , tensile modulus: 40,000 Kgf/
mm 2 ) and on a mandrel with an outer diameter of 25 mm, using the filament winding method, a helical is placed at an angle of ±25° so that the former becomes the outer surface layer and the latter becomes the inner layer. This was rolled to obtain a preform.
次に、この予備成形体を、外径35mm、長さ200
mmの鋼管に入れた後、750℃に予熱して金型に入
れ、その金型に溶融アルミニウム合金（JIS
AC4C、温度：750℃）を注ぎ、500Kg／cm2の圧力
で加圧して予備成形体に含浸し、アルミニウム合
金が固化するのを待つて脱型した。 Next, this preform was made into a material with an outer diameter of 35 mm and a length of
mm steel pipe, preheated to 750°C, put it in a mold, and put the molten aluminum alloy (JIS
AC4C (temperature: 750°C) was poured and impregnated into the preform by pressing at a pressure of 500 Kg/cm 2 , and after waiting for the aluminum alloy to solidify, it was demolded.
かくして、外径が35mm、内径が25mm、長さが
200mmの中空棒状CFRMを得た。このCFRMは、
炭素繊維の含有率が約60体積％で、外表層部の厚
みは１mmであつた。 Thus, the outer diameter is 35 mm, the inner diameter is 25 mm, and the length is
A 200 mm hollow rod-shaped CFRM was obtained. This CFRM is
The carbon fiber content was approximately 60% by volume, and the thickness of the outer surface layer was 1 mm.
次に、上記CFRMから長さ10mmの試験片を切
り出し、耐摩耗性試験をした。なお、この試験
は、回転自在に内燃機関用オイル中に半没させた
試験片の表面に60Kgｆの力で黒鉛鋳鉄を押し付
け、滑り速度を0.3m／秒として１時間後におけ
る摩耗量を測定することによつて行つた。 Next, a test piece with a length of 10 mm was cut out from the above CFRM and subjected to an abrasion resistance test. In this test, graphite cast iron is pressed with a force of 60 kgf onto the surface of a test piece that is freely rotatable and semi-immersed in internal combustion engine oil, and the amount of wear is measured after 1 hour at a sliding speed of 0.3 m/sec. I went there depending on the matter.
また、残つた180mm長のCFRMについて、外表
面のロツクウエル硬さを測定した後、４点曲げ試
験法によつて破壊荷重を測定するとともに、剛性
の指標として負荷荷重1000Kgｆ時における中央部
のたわみを測定した。なお、条件は、支点間距離
150mm、荷重負荷くさび間距離50mm、荷重負荷速
度１mm／分とした。試験の結果を以下に示す。 In addition, after measuring the Rockwell hardness of the outer surface of the remaining 180 mm long CFRM, we measured the fracture load using a 4-point bending test method, and measured the deflection at the center when a load of 1000 kgf was applied as an index of rigidity. It was measured. In addition, the conditions are the distance between the fulcrums
150 mm, the distance between the load-bearing wedges was 50 mm, and the load-bearing speed was 1 mm/min. The test results are shown below.
摩耗量：12μm
破壊荷重：12.9×103Kgｆ
たわみ：1.30mm
硬さ：70HRＢ
比較例
比較例 １
炭素繊維として上記黒鉛質炭素繊維のみを使用
したほかは実施例と同様にして得たCFRMにつ
いて、実施例と同様の試験をした。試験結果を以
下に示す。 Amount of wear: 12 μm Breaking load: 12.9×10 3 Kgf Deflection: 1.30 mm Hardness: 70H R B Comparative Example Comparative Example 1 CFRM obtained in the same manner as in the example except that only the above graphitic carbon fiber was used as the carbon fiber. The same tests as in the examples were conducted. The test results are shown below.
摩耗量：37μm
破壊荷重：13.2×103Kgｆ
たわみ：1.33mm
硬さ：45HRＢ
比較例 ２
炭素繊維として上記炭素質炭素繊維のみを使用
したほかは実施例と同様にして得たCFRMにつ
いて、実施例と同様の試験をした。試験結果を以
下に示す。 Amount of wear: 37 μm Breaking load: 13.2×10 3 Kgf Deflection: 1.33 mm Hardness: 45H R B Comparative Example 2 Regarding CFRM obtained in the same manner as in the example except that only the above carbonaceous carbon fiber was used as the carbon fiber, A test similar to that in the example was conducted. The test results are shown below.
摩耗量：12μm
破壊荷重：6.8×103Kgｆ
たわみ：2.04mm
硬さ：70HRＢ
発明の効果
この発明の炭素繊維強化アルミニウム合金複合
材料は、炭素質炭素繊維と黒鉛質炭素繊維とでア
ルミニウム合金を強化してなる棒状複合材料であ
つて、炭素質炭素繊維と黒鉛質炭素繊維とが層を
なしているとともに炭素質炭素繊維が表層部に配
置されているから、実施例と比較例との対比から
も明らかなように、強度、剛性、耐摩耗性、表面
硬さといつた特性に優れるばかりか、これらの特
性をバランスよく備えている。 Amount of wear: 12 μm Breaking load: 6.8×10 3 Kgf Deflection: 2.04 mm Hardness: 70H R B Effects of the invention The carbon fiber reinforced aluminum alloy composite material of this invention is an aluminum alloy made of carbonaceous carbon fibers and graphitic carbon fibers. It is a rod-shaped composite material made by reinforcing carbonaceous carbon fibers and graphitic carbon fibers, and the carbonaceous carbon fibers are arranged in the surface layer, so there are differences between the examples and comparative examples. As is clear from the comparison, it not only has excellent properties such as strength, rigidity, wear resistance, and surface hardness, but also has a good balance of these properties.
Claims (1)
ニウム合金を強化してなる棒状複合材料であつ
て、上記炭素質炭素繊維と黒鉛質炭素繊維とが層
をなしているとともに上記炭素質炭素繊維が表層
部に配置されていることを特徴とする炭素繊維強
化アルミニウム合金複合材料。 ２ 中空棒状複合材料であつて、かつ、上記炭素
質炭素繊維が、外表層部および／または内表層部
に配置されている、特許請求の範囲第１項に記載
の炭素繊維強化アルミニウム合金複合材料。[Scope of Claims] 1. A rod-shaped composite material made by reinforcing an aluminum alloy with carbonaceous carbon fibers and graphite carbon fibers, wherein the carbonaceous carbon fibers and graphite carbon fibers form a layer, and A carbon fiber-reinforced aluminum alloy composite material, characterized in that the carbonaceous carbon fibers described above are arranged in a surface layer. 2. The carbon fiber-reinforced aluminum alloy composite material according to claim 1, which is a hollow rod-shaped composite material, and the carbonaceous carbon fibers are arranged in an outer surface layer portion and/or an inner surface layer portion. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12599983A JPS6021344A (en) | 1983-07-13 | 1983-07-13 | Carbon fiber reinforced composite metallic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12599983A JPS6021344A (en) | 1983-07-13 | 1983-07-13 | Carbon fiber reinforced composite metallic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6021344A JPS6021344A (en) | 1985-02-02 |
| JPH0470377B2 true JPH0470377B2 (en) | 1992-11-10 |
Family
ID=14924212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12599983A Granted JPS6021344A (en) | 1983-07-13 | 1983-07-13 | Carbon fiber reinforced composite metallic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6021344A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4524426B2 (en) * | 2004-03-25 | 2010-08-18 | 独立行政法人産業技術総合研究所 | Manufacturing method of low elastic modulus amorphous carbon fiber reinforced aluminum composites |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536257A (en) * | 1978-09-06 | 1980-03-13 | Koei Chem Co Ltd | Lightening of color of vinyl polymer containing quaternary salt of pyridine base as substitution group |
-
1983
- 1983-07-13 JP JP12599983A patent/JPS6021344A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536257A (en) * | 1978-09-06 | 1980-03-13 | Koei Chem Co Ltd | Lightening of color of vinyl polymer containing quaternary salt of pyridine base as substitution group |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6021344A (en) | 1985-02-02 |
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