JPS62110860A - Cylindrical product for using fiber reinforced composite metallic material and production of fiber reinforced composite metallic material having approximately cylindrical shape - Google Patents
Cylindrical product for using fiber reinforced composite metallic material and production of fiber reinforced composite metallic material having approximately cylindrical shapeInfo
- Publication number
- JPS62110860A JPS62110860A JP24988285A JP24988285A JPS62110860A JP S62110860 A JPS62110860 A JP S62110860A JP 24988285 A JP24988285 A JP 24988285A JP 24988285 A JP24988285 A JP 24988285A JP S62110860 A JPS62110860 A JP S62110860A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- mold
- fiber
- fiber reinforced
- rotary
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は金属・合金とセラミック繊維、炭素繊維ある
いは高強度高融点の異種金Ｎｖｈ維等を複合して成る繊
維強化材を用いた円筒形製品およびその製造方法に関す
る。Detailed Description of the Invention (Industrial Application Field) This invention provides a cylindrical shape using a fiber reinforced material made of a composite of metal/alloy and ceramic fibers, carbon fibers, or high-strength, high-melting-point dissimilar gold Nvh fibers. Regarding products and their manufacturing methods.
（従来技術）
繊維強化材あるいはそれらの成形体に対して各種金属・
合金の溶湯を注湯時あるいは注湯後に高圧下において凝
固させる高圧鋳造法が採用されており、この高圧鋳造法
によって複合物性の優れた製品が量産されて内燃機関用
のピストン、コンロッド等に実用化されている。(Prior art) Various metals and
A high-pressure casting method is used in which molten alloy is solidified under high pressure during or after pouring, and products with excellent composite physical properties are mass-produced using this high-pressure casting method, and are put to practical use in pistons, connecting rods, etc. for internal combustion engines. has been made into
（発明が解決しようとする問題点） しかし、高圧鋳造法には以下のごとき問題点がある。(Problem to be solved by the invention) However, the high pressure casting method has the following problems.
すなわち、製品の製造にあたっては大型のプレス機械を
使用しなければならないため繊維強化材を使用しない場
合における金型重力鋳造法等に比較して著しく設備費が
嵩み、溶湯から高圧のかかる金型の製作は精度的にも高
度の技術を要し、製品形状によっては著しくコスト高と
なる場合がある。また、放熱条件も悪く、凝固に時間が
かかる。In other words, since it is necessary to use a large press machine to manufacture the product, the equipment cost is significantly higher than the mold gravity casting method that does not use fiber reinforcement, and the mold requires high pressure from the molten metal. Manufacturing requires highly sophisticated technology in terms of precision, and depending on the shape of the product, the cost can be extremely high. Furthermore, heat dissipation conditions are poor, and solidification takes time.
そこで、本発明は斯かる問題点を解決するもので、従来
機械をそのまま採用しながら優れた耐熱性強度を有する
繊維強化複合材を用いて成る円筒形製品および略円筒形
状を成す繊維強化複合金属材の製造方法を提供するにあ
る。Therefore, the present invention aims to solve such problems, and uses conventional machines as they are, while producing cylindrical products made of fiber-reinforced composite materials with excellent heat resistance and strength, and fiber-reinforced composite metals having a substantially cylindrical shape. To provide a method for manufacturing materials.
（問題点を解決するための手段）
本発明に係る円筒形製品およびその製造方法は、以上の
問題点を解決するため次の構成を備えてなる。(Means for Solving the Problems) A cylindrical product and a method for manufacturing the same according to the present invention have the following configuration in order to solve the above problems.
円筒形製品の外形に対応する内部形状を有する回転金型
１０の内周面に略円筒形状に畏敬された繊維強化材１２
の外周面を密着状態にあらかじめ装着し、繊維強化材１
２の装着後に回転金型１０を遠心鋳造機１４によって回
転させ、該繊維強化材１２の内周面から溶湯金属１６を
取鍋１８等から注湯し、注湯された溶湯金属に加わる遠
心力によって繊維強化材１２内部にまで溶湯を強力に含
浸し、含浸状態において溶湯を凝固させ、凝固済みの繊
維強化複合金属材をそのまま、あるいは短寸に切断し、
さらには切断したものを鋳ぐるみする等の後加工をする
ことによって円筒形状のシリンダ、ピストン等あるいは
リング形状としたピストンリング等としたことを特徴と
する繊維強化複合材を用いた円筒形製品。および円筒形
製品の外形に対応する内部形状を有する回転金型１０の
内周面に略円筒形状に成形された繊維強化材１２の外周
を、密着状態に装着し、繊維強化材１２装着済みの回転
金型１０を遠心鋳造機によって回転させ、該繊維強化材
１２の内周面から溶湯金属１６を注湯し、注湯された溶
湯金属に回転金型１０を介して加えられる回転力が強大
な遠心力を生じるため、この遠心力によって繊維強化材
１２内部まで完全に溶湯を強力に含浸することができ、
この含浸状態において溶湯を凝固させることを特徴とす
る略円筒形状を成す繊維強化複合金属材の製造方法。A fiber reinforced material 12 having a substantially cylindrical shape is placed on the inner peripheral surface of a rotary mold 10 having an internal shape corresponding to the outer shape of a cylindrical product.
The outer circumferential surface of
2, the rotary mold 10 is rotated by the centrifugal casting machine 14, and molten metal 16 is poured from the ladle 18 etc. from the inner peripheral surface of the fiber reinforced material 12, and centrifugal force is applied to the poured molten metal. to strongly impregnate the inside of the fiber reinforced material 12 with the molten metal, solidify the molten metal in the impregnated state, and cut the solidified fiber reinforced composite metal material as it is or into short pieces,
Furthermore, cylindrical products using fiber-reinforced composite materials are characterized in that they are made into cylindrical cylinders, pistons, etc., or ring-shaped piston rings, etc. by post-processing the cut material, such as casting. Then, the outer periphery of the fiber reinforced material 12 molded into a substantially cylindrical shape is tightly attached to the inner peripheral surface of the rotary mold 10 having an internal shape corresponding to the outer shape of the cylindrical product, and the fiber reinforced material 12 is attached. The rotary mold 10 is rotated by a centrifugal casting machine, molten metal 16 is poured from the inner peripheral surface of the fiber reinforced material 12, and a strong rotational force is applied to the poured molten metal via the rotary mold 10. This centrifugal force can completely and strongly impregnate the interior of the fiber reinforced material 12 with the molten metal.
A method for manufacturing a fiber-reinforced composite metal material having a substantially cylindrical shape, characterized by solidifying the molten metal in this impregnated state.
（作用）
繊維強化材１２の内部にまで完全に溶湯金属が充満して
巣のできない状態下において、又巣ができそうになって
もそれをつぶす方向の力が加わってすぐ溶湯が巣の内部
に入るため、強固な製品ができあがり、高圧大型プレス
機械などの高価な機械を使用するのと同等あるいはそれ
以上の遠心力を加えることができるため、極めて優れた
製品となる。(Function) When the interior of the fiber reinforced material 12 is completely filled with molten metal and no nests are formed, even if a nest is about to form, a force is applied to crush it and the molten metal immediately flows inside the nest. This makes it possible to create a strong product and apply centrifugal force equal to or greater than using expensive machines such as high-pressure large presses, making it an extremely superior product.
（実施例）
以下には本発明を具体化した好適な実施例を拳げ、図面
を参照して詳述する。(Embodiments) Hereinafter, preferred embodiments embodying the present invention will be described in detail with reference to the drawings.
第１図において示す竪型の遠心鋳造機１４縦断面におい
て、上部に回転金型１０、中途部に回転金型１０を支え
る回転軸２０、さらには回転軸２０を支持する軸受２２
と回転軸２０を駆動するブーＩＪ２４、プーリ２６付の
駆動モータ２８と機台３０によって竪型の遠心鋳造機１
４が構成されている。In the vertical cross section of the vertical centrifugal casting machine 14 shown in FIG. 1, the rotary mold 10 is at the top, the rotary shaft 20 that supports the rotary mold 10 in the middle, and the bearing 22 that supports the rotary shaft 20.
A vertical centrifugal casting machine 1 is formed by a boost IJ 24 that drives a rotating shaft 20, a drive motor 28 with a pulley 26, and a machine stand 30.
4 are configured.
回転金型１０は上部から、中央に孔部３２を透設した円
板状の上蓋金型３４、円筒形金型３６、下板金型３８か
ら成り、下板金型３８は回転金型１０をその上端部にお
いて支持し、回転させる垂直な回転軸２０の上部を拡径
した拡径部によって一体に構成されている。The rotary mold 10 consists of, from the top, a disc-shaped upper lid mold 34 with a hole 32 in the center, a cylindrical mold 36, and a lower plate mold 38. It is integrally constituted by an enlarged diameter portion formed by enlarging the upper part of a vertical rotating shaft 20 that is supported and rotated at the upper end.
回転金型１０についてさらに詳細に説明すると、回転金
型１０の中央となる円筒形金型３６は完全な円筒形状で
ある必要はなく、製品の取出しを容易とするため内面を
テーパ形状とすることができる（第２図、第３図参照）
。To explain the rotary mold 10 in more detail, the cylindrical mold 36 that is the center of the rotary mold 10 does not need to have a perfect cylindrical shape, but may have a tapered inner surface to facilitate taking out the product. (See Figures 2 and 3)
.
また、円筒形金型３６を密着した２重構造とすることが
できる（第４図〜第７図参照）。この円筒形金型３６は
回転外金型４０と回転内金型４２とから成り、回転外金
型４０の内面形状をテーパ形状とし、回転内金型４２外
周面は該テーパ形状と合致するテーパ形状を成し、縦方
向に２分割あるいは３分割等とした構造とする。この方
式によるときは、回転内金型４２の内面が完全な円筒形
製品に対応するテーパ無しの形状であっても鋳造後に、
鋳物を取り出すにあたって、鋳物と一緒に回転内金型４
２を回転外金型４０からテーパ形状部で分離し、その後
、２分割うる回転内金型４２を分解して鋳物を取り出せ
る。鋳物の外周面に抜き取りのためテーパ形状部分を設
ける必要が無いため取代等の無駄を少な（できる。さら
にまた、鋳物外周に複雑な鋳出し形状とすることができ
る。Further, the cylindrical mold 36 can have a double structure in close contact with each other (see FIGS. 4 to 7). The cylindrical mold 36 consists of an outer rotary mold 40 and an inner rotary mold 42. The inner surface of the outer rotary mold 40 is tapered, and the outer peripheral surface of the inner rotary mold 42 is tapered to match the tapered shape. It has a structure that is divided into two or three parts in the vertical direction. When using this method, even if the inner surface of the rotating inner mold 42 has a non-tapered shape that corresponds to a completely cylindrical product, after casting,
When taking out the casting, the rotating inner mold 4 is removed together with the casting.
2 is separated from the rotary outer mold 40 at the tapered portion, and then the rotary inner mold 42, which can be divided into two, is disassembled to take out the casting. Since there is no need to provide a tapered portion on the outer circumference of the casting for extraction, waste such as machining allowance can be reduced.Furthermore, a complex casting shape can be formed on the outer circumference of the casting.
金型内面には鋳造物の離型性を良好としたり凝固速度を
低下させる目的で離型剤４４を塗る。A mold release agent 44 is applied to the inner surface of the mold for the purpose of improving the mold releasability of the cast or reducing the solidification rate.
ポルト４６で組み上げられた回転金型１０内面に円筒状
の繊維強化材１２を装着しておき、繊維強化材１２を回
転金型１０と一体に回転させ、その状態で上蓋金型３４
中央の孔部３２からアルミニウム合金等の溶湯金属１６
を取鍋１８から注湯する。注湯された溶湯は回転金型１
０及び繊維強化材１２の内周面から回転力を得て回転し
、同時に強大な遠心力を得て繊維強化材１２の内周面か
ら溶湯を含浸させることができる。この状態で溶湯を凝
固させ、繊維強化複合金属材とし凝固後は回転金型の回
転を止めて回転金型を分解し、製品を取り出す。A cylindrical fiber-reinforced material 12 is attached to the inner surface of the rotary mold 10 assembled with the port 46, and the fiber-reinforced material 12 is rotated together with the rotary mold 10, and in this state, the upper lid mold 34
Molten metal 16 such as aluminum alloy flows through the central hole 32.
Pour hot water into the ladle 18. The poured molten metal is placed in rotating mold 1
0 and the inner peripheral surfaces of the fiber reinforced material 12 to rotate, and at the same time, a strong centrifugal force is obtained to impregnate the molten metal from the inner peripheral surface of the fiber reinforced material 12. In this state, the molten metal is solidified to form a fiber-reinforced composite metal material. After solidification, the rotation of the rotary mold is stopped, the rotary mold is disassembled, and the product is removed.
（発明の効果）
本発明に係る繊維強化複合金属材およびその製造方法は
、溶湯の遠心力を利用し、繊維強化材に溶湯金属を含浸
させ複合させることを特徴とするため、特別な大型プレ
ス機械を必要とせず容易に繊維強化複合金属材を製造す
ることができ、小型から大型の鋳造品をすみやかに製作
できるうえ異物混入の欠陥の少ない製品ができる。横型
遠心鋳造法でも同じ結果を得ることができる。(Effects of the Invention) The fiber-reinforced composite metal material and the manufacturing method thereof according to the present invention are characterized in that the fiber-reinforced material is impregnated with molten metal and composited using the centrifugal force of the molten metal. Fiber-reinforced composite metal materials can be easily produced without the need for machinery, and small to large cast products can be produced quickly, and products with fewer defects due to foreign matter contamination can be produced. The same results can be obtained using horizontal centrifugal casting.
本発明に係る繊維強化複合金属材は円筒状の製品の製造
に適し、アルミニウム合金等をマトリックスによって強
化し内燃機関用のシリンダライチア、ピストン、ピスト
ンリング等の素材として使用することができる。繊維強
化材の方向性、太さを組み合わせることによって軽量で
優れた耐摩耗性と抗張力、耐熱性のある製品を得ること
ができ、高速往復回転する回転体の慣性を著しく低下さ
せて高速化、低燃費化を達成することができる。さらに
また、繊維強化複合金属材をリング状に切断し切削加工
した製品を内燃機関用軽合金ピストンリングルランド部
に通常の重力鋳造によって鋳ぐるむことができ、簡単に
耐摩環入りピストンとすることができる。The fiber-reinforced composite metal material according to the present invention is suitable for manufacturing cylindrical products, and can be used as a material for cylinder lights, pistons, piston rings, etc. for internal combustion engines by reinforcing aluminum alloys etc. with a matrix. By combining the orientation and thickness of the fiber reinforced material, it is possible to obtain a lightweight product with excellent abrasion resistance, tensile strength, and heat resistance, and the inertia of the rotating body that rotates back and forth at high speed is significantly reduced, increasing the speed. It is possible to achieve low fuel consumption. Furthermore, a product obtained by cutting and machining a fiber-reinforced composite metal material into a ring shape can be cast into the ring ring part of a light alloy piston for an internal combustion engine by normal gravity casting, thereby easily producing a piston with a wear-resistant ring. I can do it.
以上本発明につき好適な実施例を挙げて種々説明したが
、本発明はこの実施例に限定されるものではなく、発明
の精神を逸脱しない範囲内で多くの改変を施し得るのは
もちろんのことである。Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.
第１図は遠心鋳造機正面縦断面図である。第２図、第３
図は回転金型の正面縦断面図、平面図、第４図、第５図
は回転金型の正面縦断面図、平面図、第６図、第７図は
回転内金型の正面図、平面図である。
１０・・・回転金型、 １２・・・繊維強化材、１４
・・・遠心鋳造機、 １６・・・溶湯金属、１８・・
・取鍋、 ２０・・・回転軸、２２・・・軸受、 ２４
．２６・・・プーリ、２８・・・駆動モータ、 ３０・
・・機台、３２・・・孔部、 ３４・・・上蓋金型、３
６・・・円筒形金型、 ３８・・・下板金型、４０・・
・回転外金型、 ４２・・・回転内金型、４４・・・離
型剤、 ４６・・・ボルト。FIG. 1 is a front vertical sectional view of a centrifugal casting machine. Figures 2 and 3
4 and 5 are front longitudinal sectional views and a plan view of the rotating mold, and FIGS. 6 and 7 are front views of the rotating internal mold. FIG. 10... Rotating mold, 12... Fiber reinforced material, 14
... Centrifugal casting machine, 16... Molten metal, 18...
・Ladle, 20... Rotating shaft, 22... Bearing, 24
．． 26... Pulley, 28... Drive motor, 30.
... Machine stand, 32 ... Hole, 34 ... Upper lid mold, 3
6... Cylindrical mold, 38... Lower plate mold, 40...
- Rotating outer mold, 42... Rotating inner mold, 44... Mold release agent, 46... Bolt.
Claims (1)
金型の内周面に略円筒形状に成形された繊維強化材の外
周面を密着状態に装着し、繊維強化材装着済みの回転金
型を遠心鋳造機によって回転させ該繊維強化材の内周面
から溶湯金属を注湯し、注湯された溶湯金属に加わる遠
心力によって繊維強化材内部にまで溶湯を強力に含浸し
、含浸状態において溶湯を凝固させ、凝固済みの繊維強
化複合材をそのまま、あるいは切断し、さらには切断し
たものを鋳ぐるみ等の後加工をすることによって、円筒
形状のシリンダ、ピストン等あるいはリング形状のピス
トンリング等としたことを特徴とする繊維強化複合材を
用いた円筒形製品。 ２、円筒形製品の外形に対応する内部形状を有す回転金
型の内周面に略円筒形状に成形された繊維強化材の外周
面を密着する状態に装着し、繊維強化材装着済みの回転
金型を遠心鋳造機によって回転させ、該繊維強化材の内
周面から溶湯金属を注湯し、注湯された溶湯金属に加わ
る遠心力によって繊維強化材内部にまで溶湯を強力に含
浸し含浸状態において溶湯を凝固させることを特徴とす
る略円筒形状を成す繊維強化複合金属材の製造方法。[Claims] 1. The outer circumferential surface of a fiber reinforced material formed into a substantially cylindrical shape is tightly attached to the inner circumferential surface of a rotary mold having an internal shape corresponding to the outer shape of a cylindrical product, and the fiber reinforced material is A centrifugal casting machine rotates the rotary mold with the material loaded, and pours molten metal from the inner peripheral surface of the fiber-reinforced material, and the centrifugal force applied to the poured molten metal forces the molten metal into the inside of the fiber-reinforced material. The molten metal is solidified in the impregnated state, and the solidified fiber-reinforced composite material is used as it is or is cut, and the cut pieces are then processed into castings and other post-processing to create cylindrical cylinders, pistons, etc. Alternatively, a cylindrical product made of fiber-reinforced composite material characterized by a ring-shaped piston ring or the like. 2. The outer circumferential surface of the fiber reinforced material formed into a substantially cylindrical shape is attached to the inner circumferential surface of a rotary mold having an internal shape corresponding to the outer shape of the cylindrical product, and the fiber reinforced material is attached to the inner circumferential surface of the rotating mold. A rotary mold is rotated by a centrifugal casting machine, molten metal is poured from the inner peripheral surface of the fiber reinforced material, and the molten metal is strongly impregnated into the fiber reinforced material by the centrifugal force applied to the poured molten metal. A method for manufacturing a fiber-reinforced composite metal material having a substantially cylindrical shape, characterized by solidifying a molten metal in an impregnated state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24988285A JPS62110860A (en) | 1985-11-07 | 1985-11-07 | Cylindrical product for using fiber reinforced composite metallic material and production of fiber reinforced composite metallic material having approximately cylindrical shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24988285A JPS62110860A (en) | 1985-11-07 | 1985-11-07 | Cylindrical product for using fiber reinforced composite metallic material and production of fiber reinforced composite metallic material having approximately cylindrical shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62110860A true JPS62110860A (en) | 1987-05-21 |
Family
ID=17199604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24988285A Pending JPS62110860A (en) | 1985-11-07 | 1985-11-07 | Cylindrical product for using fiber reinforced composite metallic material and production of fiber reinforced composite metallic material having approximately cylindrical shape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62110860A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0350124A2 (en) * | 1988-07-05 | 1990-01-10 | Shell Internationale Researchmaatschappij B.V. | Centrifugal casting of metal matrix composites |
| CN111872356A (en) * | 2020-08-06 | 2020-11-03 | 上海大学 | Preparation device and preparation method of carbon fiber-reinforced alloy composite material with magnetic refrigeration function |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52129627A (en) * | 1976-04-24 | 1977-10-31 | Tohoku Daigaku Kinzoku Zairyo | Production method for hollow sphere of silicone carbide fiber compound metal |
-
1985
- 1985-11-07 JP JP24988285A patent/JPS62110860A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52129627A (en) * | 1976-04-24 | 1977-10-31 | Tohoku Daigaku Kinzoku Zairyo | Production method for hollow sphere of silicone carbide fiber compound metal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0350124A2 (en) * | 1988-07-05 | 1990-01-10 | Shell Internationale Researchmaatschappij B.V. | Centrifugal casting of metal matrix composites |
| CN111872356A (en) * | 2020-08-06 | 2020-11-03 | 上海大学 | Preparation device and preparation method of carbon fiber-reinforced alloy composite material with magnetic refrigeration function |
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