JPS6128006B2 - - Google Patents
Info
- Publication number
- JPS6128006B2 JPS6128006B2 JP16803982A JP16803982A JPS6128006B2 JP S6128006 B2 JPS6128006 B2 JP S6128006B2 JP 16803982 A JP16803982 A JP 16803982A JP 16803982 A JP16803982 A JP 16803982A JP S6128006 B2 JPS6128006 B2 JP S6128006B2
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- matrix
- molded body
- treatment
- fiber molded
- 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
Links
- 239000000835 fiber Substances 0.000 claims description 50
- 239000011159 matrix material Substances 0.000 claims description 16
- 239000010935 stainless steel Substances 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 13
- 238000004881 precipitation hardening Methods 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 8
- 238000007711 solidification Methods 0.000 claims description 6
- 230000008023 solidification Effects 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000005219 brazing Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000010411 cooking Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
【発明の詳細な説明】
本発明は繊維強化複合部材の製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a fiber reinforced composite member.
本出願人は、先にステンレス鋼繊維等の無機質
繊維相互間を銅系ろう材により、または焼成処理
することにより部分的に拡散接着して繊維成形体
を成形し、それにマトリツクスとしての軽合金を
高圧凝固鋳造法により充填複合させて部材の鋳造
と同時にその所定箇所を繊維強化した複合部材の
製造方法を提案した。上記高圧凝固鋳造法によれ
ば、マトリツクスを繊維成形体に十分に充填複合
させることができ、この種繊維強化複合部材を製
造する上に有効である。 The present applicant first formed a fiber molded body by partially diffusion bonding between inorganic fibers such as stainless steel fibers using a copper-based brazing filler metal or by firing, and then added a light alloy as a matrix to the fiber molded body. We have proposed a method for manufacturing composite parts in which predetermined locations are reinforced with fibers at the same time as casting of the part by filling and compounding using high-pressure solidification casting. According to the above-mentioned high-pressure solidification casting method, it is possible to sufficiently fill and composite the matrix into the fiber molded body, and it is effective in manufacturing this type of fiber reinforced composite member.
本発明者等は上記複合部材の物性について種々
検討を加えた結果、前記繊維はろう接および焼成
の際に高温加熱されるため繊維自体が焼なまされ
てその強度が低下する傾向にあり、複合部材の強
度に影響を与えることを究明した。 The present inventors conducted various studies on the physical properties of the composite member, and found that since the fibers are heated at high temperatures during brazing and firing, the fibers themselves tend to be annealed and their strength decreases. We have determined that this affects the strength of composite members.
本発明は上記に鑑み、強化用繊維として析出硬
化形ステンレス鋼繊維を用い、この繊維および部
材自体に特定の熱処理を施すことにより強度を向
上させた繊維強化複合部材を得ることのできる前
記製造方法を提供することも目的とし、析出硬化
形ステンレス鋼繊維を用いて高温下で繊維成形体
を成形する工程と、該繊維成形体を冷却すること
によりそれに対する溶体化処理を完結する工程
と、前記繊維成形体にマトリツクスとしてのアル
ミニウム合金を高圧凝固鋳造法により充填複合さ
せると同時に部材を製造する工程と、該部材を加
熱後冷却して前記繊維成形体に析出硬化処理を施
すと同時に前記マトリツクスに溶体化処理を施す
工程と、前記部材を再び加熱後冷却して前記マト
リツクスに人工時効処理を施す工程と、を用いる
ことを特徴とする。 In view of the above, the present invention provides a method for producing a fiber-reinforced composite member with improved strength by using precipitation-hardened stainless steel fibers as reinforcing fibers and subjecting the fibers and the member itself to a specific heat treatment. It is also an object of the present invention to provide a step of forming a fiber molded article at high temperature using precipitation hardening stainless steel fibers, a step of completing the solution treatment on the fiber molded article by cooling the fiber molded article, A step of filling and compounding an aluminum alloy as a matrix into a fibrous molded body using a high-pressure solidification casting method and simultaneously producing a member; and a step of heating and cooling the member to subject the fibrous molded body to a precipitation hardening treatment, and at the same time adding to the matrix. The present invention is characterized by using a step of performing solution treatment, and a step of heating the member again and then cooling it to subject the matrix to artificial aging treatment.
以下、本発明を内燃機関用コンロツドの製造に
適用した一実施例について説明した。 An embodiment in which the present invention is applied to the manufacture of a connecting rod for an internal combustion engine will be described below.
実施例
第１、第２図はアルミニウム合金製コンロツド
を示し、１は桿部で、その両端にそれぞれ環状小
端部２および半環状大端部半体３が一体に設けら
れている。桿部１はその軸線方向に配設された析
出硬化形ステンレス鋼繊維成形体Ｆにより繊維強
化されている。Embodiment FIGS. 1 and 2 show an aluminum alloy connecting rod, in which 1 is a rod portion, and an annular small end portion 2 and a semi-annular large end half body 3 are integrally provided at both ends of the rod portion. The rod portion 1 is fiber-reinforced by a precipitation-hardened stainless steel fiber molded body F arranged in the axial direction.
上記コンロツドは以下に述べる方法により製造
される。 The above cooking stove is manufactured by the method described below.
先ず、JIS SUS 631J1で表わされる直径80μの
析出硬化形ステンレス鋼繊維（以下PH鋼繊維と
称する。）を耐熱性ガラス管内に銅系ろう材と共
に挿入し、これを1120℃に15分間保持してろう材
を溶融し、これにより繊維相互間を部分的に拡散
接着して繊維成形体Ｆを成形し、次いで繊維成形
体Ｆを10℃／秒の冷却速度で冷却する。 First, precipitation-hardened stainless steel fibers (hereinafter referred to as PH steel fibers) with a diameter of 80μ as specified by JIS SUS 631J1 were inserted into a heat-resistant glass tube together with a copper brazing filler metal, and this was held at 1120℃ for 15 minutes. The brazing material is melted and the fibers are partially diffused and bonded to each other to form a fiber molded body F, and then the fiber molded body F is cooled at a cooling rate of 10° C./sec.
上記温度1120℃は銅系ろう材の融点であると共
にPH鋼繊維の溶体化温度であり、したがつてこ
の温度から前記速度で冷却することにより繊維成
形体Ｆは溶体化処理を施される。この繊維成形体
Ｆのかさ密度は2.65ｇ/c.c.で良好な保形性を有す
る。 The temperature of 1120° C. is the melting point of the copper-based brazing material and the solution temperature of the PH steel fibers, so by cooling from this temperature at the rate mentioned above, the fiber molded body F is subjected to solution treatment. This fiber molded product F has a bulk density of 2.65 g/cc and has good shape retention.
次いで、繊維成形体Ｆを金型の桿部形成用キヤ
ビテイ内に配設し、マトリツクスＭとしてアルミ
ニウム合金（JIS AC8B材）を用い高圧凝固鋳造
法を適用してコンロツドを鋳造すると同時にその
桿部１において繊維成形体Ｆにマトリツクス１を
充填複合させて桿部１を繊維強化する。 Next, the fibrous molded body F is placed in the cavity for forming the rod portion of the mold, and the rod portion 1 is cast at the same time as the conrod is cast by applying the high-pressure solidification casting method using an aluminum alloy (JIS AC8B material) as the matrix M. In this step, the fiber molded body F is filled with the matrix 1 and the rod portion 1 is reinforced with fibers.
その後コンロツドを500℃で５時間加熱し、次
いで60℃以上の湯を用いて冷却する。この熱処理
によりマトリツクスＭとしてのアルミニウム合金
は溶体化処理を施される。同時に繊維成形体Ｆを
構成するPH鋼繊維は析出硬化処理を施されるの
でその強度の向上が図られる。 The stove is then heated at 500°C for 5 hours and then cooled using hot water at 60°C or above. Through this heat treatment, the aluminum alloy serving as the matrix M is subjected to solution treatment. At the same time, the PH steel fibers constituting the fiber molded body F are subjected to precipitation hardening treatment, thereby improving their strength.
上記溶体化および析出硬化処理の温度は450〜
510℃が適当であり、450℃を下回るとPH鋼繊維
の析出硬化処理が不可能となり、一方510℃を上
回るとアルミニウム合金とPH鋼繊維が反応する
おそれがある。 The temperature of the above solution treatment and precipitation hardening treatment is 450~
A temperature of 510°C is suitable; below 450°C, precipitation hardening of the PH steel fibers is impossible, while above 510°C, there is a risk of reaction between the aluminum alloy and the PH steel fibers.
上記処理後コンロツドを170℃で10時間加熱し
た後空冷してマトリツクスＭとしてのアルミニウ
ム合金に人工時効処理を施し、アルミニウム合金
の強度を向上させる。 After the above treatment, the conrod is heated at 170° C. for 10 hours and then cooled in air, and the aluminum alloy as matrix M is subjected to an artificial aging treatment to improve the strength of the aluminum alloy.
第３図はPH鋼繊維と、JIS SUS 27で表わさ
れるステンレス鋼繊維の弾性比例限界を示すも
ので、Ａは各繊維の熱処理前、Ｂは溶体化処理
後、Ｃは析出硬化処理後である。第３図から明ら
かなようにPH鋼繊維は前記熱処理によりその
強度がステンレス鋼繊維に比べて大幅に向上す
る。 Figure 3 shows the elastic proportionality limits of PH steel fibers and stainless steel fibers expressed by JIS SUS 27, where A is before heat treatment of each fiber, B is after solution treatment, and C is after precipitation hardening treatment. . As is clear from FIG. 3, the strength of the PH steel fibers is greatly improved by the heat treatment as compared to the stainless steel fibers.
本発明においては、前記各工程を経て、上記の
ようにPH鋼繊維の強度向上を図ると共にアルミ
ニウム合金には溶体化および人工時効処理を施し
てその強度を向上させるもので、これによりコン
ロツド桿部１の耐力はPH鋼繊維を用いた場合
38.5Kg/mm2となる。これに対しステンレス鋼繊維
を用いた場合には桿部１の耐力は29.0Kg/mm2と
なるもので、本発明により得られたコンロツドの
桿部においてはその耐力がステンレス鋼繊維を用
いたものに比べて飛躍的に増大することが確認さ
れた。 In the present invention, through each of the above steps, the strength of the PH steel fiber is improved as described above, and the aluminum alloy is subjected to solution treatment and artificial aging treatment to improve its strength. The yield strength of 1 is when using PH steel fiber.
It becomes 38.5Kg/mm 2 . On the other hand, when stainless steel fibers are used, the yield strength of the rod portion 1 is 29.0Kg/mm 2 , and the yield strength of the rod portion of the cooking stove obtained by the present invention is that of the case where stainless steel fibers are used. It was confirmed that there was a dramatic increase compared to .
なお、前記耐力は繊維成形体の体積含有率
Vf、桿部の横断面積および各繊維の析出硬化処
理後の弾性比例限界に基づいて求められたもので
ある。 In addition, the above-mentioned yield strength is based on the volume content of the fiber molded body.
It was determined based on Vf, the cross-sectional area of the rod portion, and the elastic proportional limit of each fiber after precipitation hardening treatment.
以上のように本発明によれば、軽量で、且つ高
強度な繊維強化複合部材を得ることができ、この
種複合部材はコンロツド等自動車用部品として有
効である。また析出硬化形ステンレス鋼繊維成形
体とアルミニウム合金マトリツクスを組合せて繊
維成形体の析出硬化処理とマトリツクスの溶体化
処理を一工程で行うので、製造工数およびコスト
を低減することができ、量産性に優れている。 As described above, according to the present invention, a lightweight and high-strength fiber-reinforced composite member can be obtained, and this type of composite member is effective as automotive parts such as cooking rods. In addition, since the precipitation hardening stainless steel fiber compact and the aluminum alloy matrix are combined and the precipitation hardening of the fiber compact and the solution treatment of the matrix are performed in one step, manufacturing man-hours and costs can be reduced and mass production is possible. Are better.
第１図は本発明により得られた内燃機関用コン
ロツドの縦断正面図、第２図は第１図−線断
面図、第３図は析出硬化形ステンレス繊維等にお
ける熱処理段階と弾性比例限界の関係を示すグラ
フである。
Ｆ……繊維成形体、Ｍ……マトリツクス。
Fig. 1 is a longitudinal sectional front view of a connecting rod for an internal combustion engine obtained according to the present invention, Fig. 2 is a sectional view taken along the line shown in Fig. 1, and Fig. 3 is the relationship between the heat treatment stage and the elastic proportionality limit in precipitation hardening stainless steel fibers, etc. This is a graph showing. F...Fiber molded body, M...matrix.
Claims (1)
で繊維成形体を成形する工程と、該繊維成形体を
冷却することによりそれに対する溶体化処理を完
結する工程と、前記繊維成形体にマトリツクスと
してのアルミニウム合金を高圧凝固鋳造法により
充填複合させると同時に部材を鋳造する工程と、
該部材を加熱後冷却して前記繊維成形体に析出硬
化処理を施すと同時に前記マトリツクスに溶体化
処理を施す工程と、前記部材を再び加熱後冷却し
て前記マトリツクスに人工時効処理を施す工程
と、よりなる繊維強化複合部材の製造方法。 ２ 前記繊維強化複合部材は内燃機関用コンロツ
ドであり、その桿部が溶体化処理後析出硬化処理
を施された析出硬化形ステンレス鋼繊維成形体
と、該繊維成形体に高圧凝固鋳造法により充填複
合され、溶体化処理後人工時効処理を施されたア
ルミニウム合金マトリツクスとより構成されるよ
うにした、特許請求の範囲第１項記載の繊維強化
複合部材の製造方法。[Scope of Claims] 1. A step of forming a fiber molded article at high temperature using precipitation-hardened stainless steel fibers, a step of completing a solution treatment on the fiber molded article by cooling the fiber molded article, and A step of filling and compounding an aluminum alloy as a matrix into the molded body using a high-pressure solidification casting method and simultaneously casting the member;
a step of heating and cooling the member to subject the fiber molded body to precipitation hardening treatment and at the same time subjecting the matrix to solution treatment; a step of heating and cooling the member again to subject the matrix to artificial aging treatment; , a method for manufacturing a fiber reinforced composite member. 2. The fiber-reinforced composite member is a condensing rod for an internal combustion engine, and the rod portion includes a precipitation-hardened stainless steel fiber molded body that has been subjected to precipitation hardening treatment after solution treatment, and the fiber molded body is filled by a high-pressure solidification casting method. A method for producing a fiber-reinforced composite member according to claim 1, wherein the fiber-reinforced composite member is composed of an aluminum alloy matrix that has been composited and subjected to an artificial aging treatment after solution treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16803982A JPS5967335A (en) | 1982-09-27 | 1982-09-27 | Fiber reinforced composite member and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16803982A JPS5967335A (en) | 1982-09-27 | 1982-09-27 | Fiber reinforced composite member and its production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5967335A JPS5967335A (en) | 1984-04-17 |
| JPS6128006B2 true JPS6128006B2 (en) | 1986-06-28 |
Family
ID=15860680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16803982A Granted JPS5967335A (en) | 1982-09-27 | 1982-09-27 | Fiber reinforced composite member and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5967335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001012871A1 (en) * | 1999-08-10 | 2001-02-22 | Nhk Spring Co., Ltd. | Metal matrix composite and piston using the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829053A (en) * | 2017-10-26 | 2018-03-23 | 宁波市鄞州永佳电机工具有限公司 | A kind of inner hexagon spanner |
| CN112958757A (en) * | 2021-01-20 | 2021-06-15 | 苏州鸿翼卫蓝新材科技有限公司 | Preparation method of composite transmission shaft |
-
1982
- 1982-09-27 JP JP16803982A patent/JPS5967335A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001012871A1 (en) * | 1999-08-10 | 2001-02-22 | Nhk Spring Co., Ltd. | Metal matrix composite and piston using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5967335A (en) | 1984-04-17 |
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