JPS63238227A - Fiber reinforced light alloy member - Google Patents
Fiber reinforced light alloy memberInfo
- Publication number
- JPS63238227A JPS63238227A JP7088787A JP7088787A JPS63238227A JP S63238227 A JPS63238227 A JP S63238227A JP 7088787 A JP7088787 A JP 7088787A JP 7088787 A JP7088787 A JP 7088787A JP S63238227 A JPS63238227 A JP S63238227A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- fibers
- molded body
- aspect ratio
- light alloy
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 118
- 229910001234 light alloy Inorganic materials 0.000 title claims abstract description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000012783 reinforcing fiber Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 abstract description 11
- 238000000465 moulding Methods 0.000 description 13
- 230000014759 maintenance of location Effects 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
Ａ０発明の目的
（１）産業上の利用分野
本発明は、強化用繊維よりなる繊維成形体により強化し
た繊維強化軽合金部材に関する。DETAILED DESCRIPTION OF THE INVENTION A0 Object of the Invention (1) Industrial Application Field The present invention relates to a fiber-reinforced light alloy member reinforced with a fiber molded body made of reinforcing fibers.
（２）従来の技術
従来、この種部材において、繊維成形体の繊維体積率に
ついては厳密な検討がなされているが、その繊維成形体
を構成する繊維の平均アスペクト比についてはそれ程厳
密な検討がなされていない。(2) Conventional technology In the past, for this type of component, rigorous studies have been made on the fiber volume percentage of the fiber molded body, but there has been no rigorous study on the average aspect ratio of the fibers that make up the fiber molded body. Not done.
こ＼で、アスペクト比とは、繊維の長さをＬｌまた繊維
の直径をＤとした場合にＬ／Ｄで表わされる値であり、
したがって、使用繊維の直径が略等しければ繊維の長さ
を表わす値となる。Here, the aspect ratio is a value expressed as L/D, where Ll is the length of the fiber and D is the diameter of the fiber.
Therefore, if the diameters of the fibers used are approximately the same, the value will represent the length of the fiber.
（３）発明が解決しようとする問題点
−ｍに、部材を繊維強化する場合には、その繊維強化部
の形状に略合致する繊維成形体を成形し、その繊維成形
体にマトリックスである軽合金の溶湯を充填するといっ
た手法が用いられている。(3) Problem-m to be solved by the invention: When reinforcing a member with fibers, a fiber molded body that approximately matches the shape of the fiber-reinforced portion is molded, and the fiber molded body is coated with a light material that is a matrix. Techniques such as filling with molten alloy are used.
前記繊維成形体の成形工程において、繊維体積率を高く
するときには成形圧力は比較的高く設定され、また繊維
体積率を低くするときには成形圧力は比較的低く設定さ
れる。この場合、繊維成形体の保形性は、繊維相互の絡
み合いによるものであるから、繊維体積率を高くすると
きに平均アスペクト比の大きな繊維を用いると、成形圧
力によりその繊維が切損して保形性が低下し、一方繊維
体積率を低くするときに平均アスペクト比の小さな繊維
を用いると、その成形圧力下では成形不能になるといっ
た事態を惹起する。In the process of forming the fiber molded body, the molding pressure is set relatively high when the fiber volume fraction is increased, and the molding pressure is set relatively low when the fiber volume fraction is decreased. In this case, the shape retention of the fiber molded article is due to the intertwining of the fibers, so if fibers with a large average aspect ratio are used to increase the fiber volume fraction, the fibers will be damaged by the molding pressure and the fibers will not hold. On the other hand, if fibers with a small average aspect ratio are used when reducing the fiber volume fraction, molding becomes impossible under the molding pressure.
また繊維の平均アスペクト比は、同一繊維体積率の繊維
成形体を用いた前記部材において、その強度を左右する
因子にもなる。Further, the average aspect ratio of the fibers is also a factor that influences the strength of the above-mentioned members using fiber molded bodies having the same fiber volume percentage.
したがって繊維成形体の保形性および前記部材の強度の
両点を考慮に入れて、繊維体積率に応じ繊維の平均アス
ペクト比を特定する必要がある。Therefore, it is necessary to specify the average aspect ratio of the fibers according to the fiber volume fraction, taking into consideration both the shape retention of the fiber molded body and the strength of the member.
本発明は、このような要請に応じ繊維体積率と平均アス
ペクト比との相関を究明したもので、これにより繊維強
化能を十分に発揮し得る保形性の優れた繊維成形体を用
いた高強度な前記部材を提供することを目的とする。In response to these demands, the present invention investigated the correlation between the fiber volume fraction and the average aspect ratio, and thereby developed a high-quality fiber molded article with excellent shape retention that can fully demonstrate its fiber reinforcing ability. It is an object of the present invention to provide a strong member.
Ｂ１発明の構成
（１）問題点を解決するための手段
本発明は、強化用繊維よりなる繊維成形体により強化し
た繊維強化軽合金部材において、前記繊維成形体の繊維
体積率を４〜６０％に、また前記強化用繊維の平均アス
ペクト比を２０〜１５０にそれぞれ設定したことを特徴
とする。B1 Structure of the Invention (1) Means for Solving Problems The present invention provides a fiber-reinforced light alloy member reinforced with a fiber molded body made of reinforcing fibers, in which the fiber volume fraction of the fiber molded body is 4 to 60%. Furthermore, the reinforcing fibers have an average aspect ratio of 20 to 150.
（２）作 用
前記のように繊維成形体の繊維体積率を４〜６０％に設
定すると、繊維強化に必要な繊維量を確保することがで
きる。(2) Effect When the fiber volume fraction of the fiber molded body is set to 4 to 60% as described above, the amount of fibers necessary for fiber reinforcement can be secured.
たりし、繊維体積率が４％を下回ると、繊維量が不足し
て十分な繊維強化能を得ることができず、また繊維が切
欠き効果を発揮して部材の強度が低下し、一方、繊維体
積率が６０％を上回ると、繊維量が過剰となってマトリ
ックスの充填性が悪化し、所定の強度を得ることができ
ない。However, if the fiber volume fraction is less than 4%, the amount of fibers is insufficient and sufficient fiber reinforcing ability cannot be obtained, and the fibers exhibit a notch effect, reducing the strength of the member. When the fiber volume fraction exceeds 60%, the amount of fibers becomes excessive, the filling properties of the matrix deteriorate, and it is impossible to obtain a predetermined strength.
また平均アスペクト比を２０〜１５０に設定すると、前
記繊維体積率の繊維成形体においてその保形性を良好に
し、また部材の強度を向上させることができる。Moreover, when the average aspect ratio is set to 20 to 150, the shape retention of the fiber molded article having the above-mentioned fiber volume percentage can be improved, and the strength of the member can be improved.
たりし、平均アスペクト比が２０を下回ると、繊維体積
率を４％に設定した場合に、その比較的低い成形圧力下
では成形不能となり、一方、平均アスペクト比が１５０
を上回ると、繊維体積率を６０％に設定した場合に、そ
の比較的高い成形圧力によって、繊維が切損して保形性
が低下する。However, if the average aspect ratio is less than 20, it becomes impossible to mold under that relatively low molding pressure when the fiber volume fraction is set to 4%;
If it exceeds this, even if the fiber volume fraction is set to 60%, the relatively high molding pressure will cause the fibers to break and reduce shape retention.
（３）実施例
第１〜第３図は、軽合金としてのアルミニウム合金より
鋳造された、繊維強化軽合金部材としてのサイアミーズ
型シリンダブロック１を示し、そのシリンダブロックｌ
はシリンダボア２ａを有する複数のシリンダバレル２．
〜２４を連結したサイアミーズシリンダバレル２と、そ
れを囲繞するシリンダブロック外壁３と、シリンダブロ
ック外壁３に連設されたクランクケース４とを備え、サ
イアミーズシリンダバレル２およびシリンダブロック外
壁３間にサイアミーズシリンダバレル２の外周が臨む水
ジャケット５が設けられる。水ジャケット５のシリンダ
ヘッド接合面ａ側端部において、サイアミーズシリンダ
バレル２とシリンダブロック外壁３とが複数の補強デツ
キ部６により部分的に連結され、相隣る補強デツキ部６
間は水ジャケット５の、シリンダヘッドへの連通ロアと
して機能する。これによりシリンダブロック１は、いわ
ゆるクローズドデツキ型に構成される。(3) Embodiment Figures 1 to 3 show a Siamese-type cylinder block 1 as a fiber-reinforced light alloy member cast from an aluminum alloy as a light alloy.
includes a plurality of cylinder barrels 2. having cylinder bores 2a.
24, a cylinder block outer wall 3 surrounding the Siamese cylinder barrel 2, and a crankcase 4 connected to the cylinder block outer wall 3. A water jacket 5 facing the outer periphery of the barrel 2 is provided. At the end of the water jacket 5 on the side of the cylinder head joint surface a, the Siamese cylinder barrel 2 and the cylinder block outer wall 3 are partially connected by a plurality of reinforcing deck parts 6, and adjacent reinforcing deck parts 6
The space between the cylinders and the cylinder head functions as a lower part of the water jacket 5 that communicates with the cylinder head. As a result, the cylinder block 1 is constructed into a so-called closed deck type.
各シリンダバレル２Ｉ〜２４は、シリンダボア２ａ回り
を繊維強化する円筒状繊維強化部Ｃと、その外周を囲繞
する円筒状アルミニウム合金単体部Ｍとよりなる。繊維
強化部Ｃは、第４図に示す強化用繊維としてのアルミナ
系繊維より成形された円筒状繊維成形体Ｆと、それに充
填されたアルミニウム合金マトリックスとより構成され
る。Each of the cylinder barrels 2I to 24 includes a cylindrical fiber-reinforced portion C that fiber-reinforces the circumference of the cylinder bore 2a, and a cylindrical aluminum alloy unit portion M that surrounds the outer periphery of the cylindrical fiber-reinforced portion C. The fiber reinforced part C is composed of a cylindrical fiber molded body F formed from alumina fibers as reinforcing fibers shown in FIG. 4, and an aluminum alloy matrix filled therein.
引張り試験のために、前記構成を有する各種シリンダブ
ロック１を以下に述べる工程を経て製造する。For the tensile test, various cylinder blocks 1 having the above configuration are manufactured through the steps described below.
先ず、円筒状繊維成形体Ｆの製造について説明すると、
平均直径３μｍで、平均アスペクト比を２０〜８００の
範囲内で種々変更した多種類のアルミナ系繊維に、アル
ミナゾル、シリカゾル等の無機バインダを各別に添加し
て多種類の成形材料の水溶液を調製し、これら成形材料
の水溶液を用いて吸引成形法の適用下で各種円筒体を得
、次いでこの円筒体に、それをラバーを介し成形圧力約
２０ｋｇ／ｃＩｌｌで押圧する、ラバープレス処理を施
して繊維体積率を決定し、さらに円筒体を加熱乾燥後焼
成することにより、繊維体積率（Ｖｆ）１２％の各種円
筒状繊維成形体Ｆを得る。First, the production of the cylindrical fiber molded body F will be explained.
Aqueous solutions of various molding materials were prepared by adding inorganic binders such as alumina sol and silica sol to various types of alumina fibers with an average diameter of 3 μm and an average aspect ratio of 20 to 800. Various cylindrical bodies are obtained using a suction molding method using aqueous solutions of these molding materials, and then the cylindrical bodies are subjected to a rubber press treatment in which the cylindrical bodies are pressed through rubber at a molding pressure of approximately 20 kg/cIll to form fibers. Various cylindrical fiber molded bodies F having a fiber volume fraction (Vf) of 12% are obtained by determining the volume fraction, and then heating and drying the cylindrical body and then firing it.
鋳造時には、金型を１００〜１２０℃に、また円筒状繊
維成形体Ｆを約１５０〜４５０℃にそれぞれ予熱した後
、円筒状繊維成形体Ｆおよび水ジヤケツト用砂中子を金
型に設置する。そして、温度７３０〜７４０℃のアルミ
ニウム合金（、ｌ−３ｉ−Ｃｕ系）の溶湯を金型に注入
し、その溶湯を２００〜１０００ｋｇ／ｃＪＩの圧力下
で完全凝固させて各種シリンダブロック１を得る。これ
らシリンダブロック１には鋳造後Ｔ６処理等の熱処理が
施される。During casting, after preheating the mold to 100 to 120°C and preheating the cylindrical fiber molded body F to approximately 150 to 450°C, the cylindrical fiber molded body F and the sand core for the water jacket are installed in the mold. . Then, molten aluminum alloy (l-3i-Cu type) at a temperature of 730 to 740°C is injected into the mold, and the molten metal is completely solidified under a pressure of 200 to 1000 kg/cJI to obtain various cylinder blocks 1. . These cylinder blocks 1 are subjected to heat treatment such as T6 treatment after casting.
各種シリンダブロックｌの繊維強化部Ｃよりテストピー
スを切出し、各テストピースを用いて引張り試験を行っ
たところ、第５図線Ｘに示す結果を得た。Test pieces were cut out from the fiber-reinforced portions C of various cylinder blocks 1, and a tensile test was conducted using each test piece, resulting in the results shown by the line X in Figure 5.
第５図中、線Ｙ、Ｚは円筒状繊維成形体Ｆの繊維体積率
を６０％、４％にそれぞれ設定しな場合に該当し、その
使用繊維は、前記同様に平均直径３μｍのアルミナ系繊
維である。また繊維体積率６０％の場合の成形圧力は１
０００ ｋｇ／ｃＪ、同４％の場合のそれは１ｋｇ／−
である。In Fig. 5, lines Y and Z correspond to cases where the fiber volume fraction of the cylindrical fiber molded body F is not set to 60% and 4%, respectively, and the used fibers are alumina-based fibers with an average diameter of 3 μm as described above. It is a fiber. In addition, when the fiber volume fraction is 60%, the molding pressure is 1
000 kg/cJ, if the same is 4%, it is 1 kg/-
It is.
前記のようにアルミナ系繊維の繊維体積率を４〜６０％
に設定すると、繊維強化に必要な繊維量を確保して高強
度な繊維強化部Ｃを得ることができる。As mentioned above, the fiber volume percentage of alumina fiber is 4 to 60%.
When set to , it is possible to secure the amount of fibers necessary for fiber reinforcement and obtain a high-strength fiber-reinforced portion C.
たゾし、繊維体積率が４％を下回ると、前記のように繊
維量が不足してアルミナ系繊維による繊維強化能を得る
ことができない等の問題があり、一方、繊維体積率が６
０％を上回ると、前記のように繊維量が過剰となってマ
トリックスの充填性が悪化する等の問題がある。On the other hand, if the fiber volume fraction is less than 4%, there will be problems such as the insufficient amount of fibers and the inability to obtain the fiber reinforcing ability of the alumina fibers.
If it exceeds 0%, there are problems such as the amount of fiber becomes excessive and the filling properties of the matrix deteriorate as described above.
また平均アスペクト比を２０〜１５０に設定すると、前
記繊維体積率の円筒状繊維成形体Ｆにおいてその保形性
を良好にすると共に繊維強化部Ｃの強度を向上させるこ
とができる。Further, when the average aspect ratio is set to 20 to 150, the shape retention of the cylindrical fiber molded article F having the above-mentioned fiber volume percentage can be improved, and the strength of the fiber reinforced portion C can be improved.
たソ゛シ、平均アスペクト比が２０を下回ると、繊維体
積率を４％に設定した場合に、その比較的低い成形圧力
下では成形不能となり、一方、平均アスペクト比が１５
０を上回ると、繊維体積率を６０％に設定した場合に、
その比較的高い成形圧力によって、アルミナ系繊維が切
損して保形性が低下する。However, when the average aspect ratio is less than 20, it becomes impossible to mold under that relatively low molding pressure when the fiber volume fraction is set to 4%; on the other hand, when the average aspect ratio is less than 15
When it exceeds 0, when the fiber volume fraction is set to 60%,
Due to the relatively high molding pressure, the alumina fibers are cut and their shape retention is reduced.
第５図より明らかなように、各繊維強化部Ｃにおいて、
その引張強さを最良値に保つためには各繊維体積率と平
均アスペクト比との間には密接な関連があり、繊維体積
率４％（線Ｚ）、１２％（線Ｘ）、６０％（線Ｙ）につ
いては、それぞれ平均アスペクト比が１００〜１３０．
８０〜１００゜３０〜７０である。As is clear from FIG. 5, in each fiber reinforced portion C,
In order to maintain the tensile strength at the best value, there is a close relationship between each fiber volume percentage and the average aspect ratio, and the fiber volume percentage is 4% (line Z), 12% (line (line Y), the average aspect ratio is 100 to 130.
80-100°30-70°.
第６図は、平均直径３μｍ、平均アスペクト比７０のア
ルミナ系繊維よりなる、繊維体積率１２％の円筒状繊維
成形体Ｆを用いた前記繊維強化部Ｃにおける、アルミナ
系繊維のα化率と引張強さとの関係を示し、α化率が６
０％以下であれば所定の引張強さが得られるが、α化率
が６０％を上回ると、引張強さが急激に低下する。これ
はアルミナ系繊維の硬度が増すため、その繊維が成形圧
力により切損することに起因する。Figure 6 shows the gelatinization rate of alumina fibers in the fiber reinforced section C using a cylindrical fiber molded body F with a fiber volume fraction of 12%, which is made of alumina fibers with an average diameter of 3 μm and an average aspect ratio of 70. It shows the relationship with tensile strength, and the gelatinization rate is 6.
If it is 0% or less, a predetermined tensile strength can be obtained, but if the gelatinization rate exceeds 60%, the tensile strength decreases rapidly. This is due to the increased hardness of the alumina fibers, which causes the fibers to break due to molding pressure.
アルミナ系繊維の平均直径は１０μｍ以下であることが
望ましい。その理由は、平均直径が１０μｍを上回ると
、その繊維が、軸線を引張り荷重方向と交差するように
配列された場合、マトリックスを遮断して大きな切欠き
効果を発揮するからである゛。It is desirable that the average diameter of the alumina fibers is 10 μm or less. The reason for this is that when the average diameter exceeds 10 μm, the fibers, when arranged so that their axes intersect with the direction of the tensile load, block the matrix and exhibit a large notch effect.
本発明に係る前記部材としては、前記シリンダブロック
の外に、バルブシートを繊維強化部としたシリンダヘッ
ド、トップランド部を繊維強化部としたピストン、主と
してボルト孔間に存するクランクジャーナル支承部を繊
維強化部としたクランクシャフト用ベアリングキャップ
（およびシリンダブロック）、主として枠部を繊維強化
部としたコンロンド、全体を繊維強化したロッカアーム
等各種内燃機関用部品、その他の構造部材が該当する。In addition to the cylinder block, the member according to the present invention includes a cylinder head whose valve seat is a fiber-reinforced part, a piston whose top land part is a fiber-reinforced part, and a crank journal support part which mainly exists between the bolt holes is a fiber-reinforced part. This applies to various internal combustion engine parts, such as crankshaft bearing caps (and cylinder blocks) with reinforced parts, connecting rods with mainly fiber-reinforced frames, rocker arms whose entire parts are fiber-reinforced, and other structural members.
下表は、前記内燃機関用部品における最適な繊維体積率
（ｖｒ）’および平均アスペクト比（Ｌ／Ｄ）の関係を
示す。The table below shows the relationship between the optimum fiber volume ratio (vr)' and average aspect ratio (L/D) in the internal combustion engine parts.
前記表においてｆａｔは断熱性を向上させる場合にまた
（ｂｌはリング溝の耐摩耗性を向上させる場合にそれぞ
れ該当する。In the above table, fat corresponds to the case where the heat insulation is improved, and bl corresponds to the case where the wear resistance of the ring groove is improved.
なお、部材に耐摩耗性、耐焼付き性等の摺動特性が要求
されるときには、アルミナ系繊維等に炭素繊維等の自己
潤滑能を有する繊維を混合することは有効であり、この
場合、主たる繊維と混合繊維の平均直径が異なっても、
それらの平均アスペクト比を前記範囲に特定することに
よって部材の強度を向上させることができる。In addition, when sliding properties such as wear resistance and seizure resistance are required for the member, it is effective to mix fibers with self-lubricating ability such as carbon fibers with alumina fibers, etc. In this case, the main Even if the average diameters of the fibers and mixed fibers are different,
By specifying their average aspect ratio within the above range, the strength of the member can be improved.
Ｃ１発明の効果
本発明によれば、繊維成形体の繊維体積率および強化用
繊維の平均アスペクト比を前記のように特定することに
より、繊維強化能を十分に発揮し得る保形性の優れた繊
維成形体を用いた高強度な繊維強化軽合金部材を提供す
ることができる。C1 Effects of the Invention According to the present invention, by specifying the fiber volume fraction of the fiber molded article and the average aspect ratio of the reinforcing fibers as described above, a fiber molded article with excellent shape retention that can fully exhibit its fiber reinforcing ability can be obtained. A high-strength fiber-reinforced light alloy member using a fiber molded body can be provided.
【図面の簡単な説明】
第１ないし第３図はシリンダブロックを示し、第１図は
平面図、第２図は第１図■−ｎ線断面図、第３図は第２
図ｍ−ｍ線断面図、第４図は円筒状繊維成形体の斜視図
、第５図はアルミナ系繊維の平均アスペクト比と繊維強
化部の引張強さとの関係を示すグラフ、第６図はアルミ
ナ系繊維のα化率と繊維強化部の引張強さとの関係を示
すグラフである。[Brief Description of the Drawings] Figures 1 to 3 show the cylinder block, Figure 1 is a plan view, Figure 2 is a sectional view taken along the line ■-n in Figure 1, and Figure 3 is a cylinder block.
Figure 4 is a perspective view of the cylindrical fiber molded body, Figure 5 is a graph showing the relationship between the average aspect ratio of alumina fibers and the tensile strength of the fiber reinforced part, and Figure 6 is a cross-sectional view taken along line m-m. It is a graph showing the relationship between the alpha conversion rate of alumina-based fibers and the tensile strength of the fiber-reinforced portion.
Claims (4)
維強化軽合金部材において、前記繊維成形体の繊維体積
率を４〜６０％に、また前記強化用繊維の平均アスペク
ト比を２０〜１５０にそれぞれ設定したことを特徴とす
る繊維強化軽合金部材。(1) In a fiber-reinforced light alloy member reinforced with a fiber molded body made of reinforcing fibers, the fiber volume fraction of the fiber molded body is set to 4 to 60%, and the average aspect ratio of the reinforcing fibers is set to 20 to 150. A fiber-reinforced light alloy member characterized by the following settings.
、特許請求の範囲第（１）項記載の繊維強化軽合金部材
。(2) The fiber-reinforced light alloy member according to claim (1), wherein the average aspect ratio is set to 30 to 130.
した、特許請求の範囲第（１）または第（２）項記載の
繊維強化軽合金部材。(3) The fiber-reinforced light alloy member according to claim 1 or 2, wherein the average diameter of the reinforcing fibers is set to 10 μm or less.
ミナ系繊維のα化率を６０％以下に設定した、特許請求
の範囲第（１）、第（２）または第（３）項記載の繊維
強化軽合金部材。(4) The reinforcing fibers are alumina fibers, and the alumina fibers have a gelatinization rate of 60% or less, as described in claim 1, (2), or (3). Fiber-reinforced light alloy components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7088787A JPS63238227A (en) | 1987-03-25 | 1987-03-25 | Fiber reinforced light alloy member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7088787A JPS63238227A (en) | 1987-03-25 | 1987-03-25 | Fiber reinforced light alloy member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63238227A true JPS63238227A (en) | 1988-10-04 |
Family
ID=13444487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7088787A Pending JPS63238227A (en) | 1987-03-25 | 1987-03-25 | Fiber reinforced light alloy member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63238227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5421087A (en) * | 1989-10-30 | 1995-06-06 | Lanxide Technology Company, Lp | Method of armoring a vehicle with an anti-ballistic material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61195940A (en) * | 1985-02-26 | 1986-08-30 | Toshiba Corp | Production of short fiber preform |
-
1987
- 1987-03-25 JP JP7088787A patent/JPS63238227A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61195940A (en) * | 1985-02-26 | 1986-08-30 | Toshiba Corp | Production of short fiber preform |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5421087A (en) * | 1989-10-30 | 1995-06-06 | Lanxide Technology Company, Lp | Method of armoring a vehicle with an anti-ballistic material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19810464C1 (en) | Crankcase for internal combustion engine | |
| EP0145393B1 (en) | The reinforcement of engine blocks | |
| JPS5893948A (en) | Engine piston | |
| US4136648A (en) | Low weight reciprocating engine | |
| US4831918A (en) | Light alloy pistons with reinforcing inserts for the piston pin bores | |
| US4856462A (en) | Cylinder block made of fiber-reinforced light alloy for internal combustion engine | |
| DE112014005655T5 (en) | Cylinder liner of an internal combustion engine | |
| US4197899A (en) | Method of casting a low weight reciprocating engine | |
| JPS63238227A (en) | Fiber reinforced light alloy member | |
| US4212281A (en) | Low weight reciprocating engine | |
| DE102018122899A1 (en) | Aluminum cylinder block assemblies and methods of making same | |
| US4730548A (en) | Light metal alloy piston | |
| DE102022109109A1 (en) | ENGINE CRANKSHAFT ASSEMBLIES WITH INTERNAL REINFORCEMENT STRUCTURES | |
| WO2008059329A1 (en) | Cylinder block and method for producing cylinder block | |
| DE10221675B4 (en) | cylinder housing | |
| WO2009056244A1 (en) | Method for producing a cylinder crankcase | |
| JPS60182338A (en) | Cylinder block for internal-combustion engine made of light metal | |
| JPS59229033A (en) | Piston for internal-combustion engine | |
| EP2114590B1 (en) | Method for the production of a cylinder crank housing having multiple cylinder sleeves and short cylinder sleeves with material strips fixed thereto | |
| JPS59229034A (en) | Piston for internal-combustion engine | |
| JPS62261649A (en) | Fiber-reinforced cylinder-block | |
| JPS6323869B2 (en) | ||
| DE10221673A1 (en) | Piston engine cylinder and liner production reinforces liner during squeeze- or chill-casting against deformation for later removal after casting. | |
| US4669367A (en) | Light metal alloy piston | |
| JPH0313549Y2 (en) |