JPS62251568A - Fiber reinforced plastic small-sized piston and manufacture thereof - Google Patents
Fiber reinforced plastic small-sized piston and manufacture thereofInfo
- Publication number
- JPS62251568A JPS62251568A JP9577786A JP9577786A JPS62251568A JP S62251568 A JPS62251568 A JP S62251568A JP 9577786 A JP9577786 A JP 9577786A JP 9577786 A JP9577786 A JP 9577786A JP S62251568 A JPS62251568 A JP S62251568A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- resin material
- reinforced fiber
- reinforcing fibers
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 229920002430 Fibre-reinforced plastic Polymers 0.000 title 1
- 239000011151 fibre-reinforced plastic Substances 0.000 title 1
- 239000011347 resin Substances 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 239000012783 reinforcing fiber Substances 0.000 claims description 16
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 238000004378 air conditioning Methods 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0085—Materials for constructing engines or their parts
- F02F7/0087—Ceramic materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/01—Pistons; Trunk pistons; Plungers characterised by the use of particular materials
-
- 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
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/16—Fibres
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、エアコン用コンプレッサ等のピストンの製法
に利用できる繊維強化樹脂製小型ピストンの製造方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a small piston made of fiber-reinforced resin that can be used for manufacturing pistons for air conditioner compressors and the like.
（従来の技術）
従来エアコン用コンプレッサ等に用いるピストンは、軽
量性、加工性が要求されることから、アルミニウム合金
に、樹脂製シールリングをはめたり、樹脂コーティング
して用いられていた。また従来も補強繊維入り樹脂製ピ
ストンも考えられたが、この樹脂製ピストンは得られる
成形品の寸法精度が不充分で、後加工の必要があった。(Prior Art) Pistons used in air conditioner compressors and the like have traditionally been made of aluminum alloy, fitted with a resin seal ring or coated with a resin, since they are required to be lightweight and workable. Also, pistons made of resin containing reinforcing fibers have been considered in the past, but the dimensional accuracy of the molded products obtained with these resin pistons is insufficient, and post-processing is required.
（発明が解決しようとする問題点）
従来のアルミニウム合金製ピストンでは樹脂コーティン
グの必要があると共に、使用回転数に限界があり、また
補強繊維入り樹脂製ピストンでは寸法精度が不充分であ
るなどの問題があったので。(Problems to be solved by the invention) Conventional aluminum alloy pistons require resin coating and have a limited number of rotations, while resin pistons containing reinforcing fibers have insufficient dimensional accuracy. Because there was a problem.
本発明はこれらの問題点を解決しようとするものである
。The present invention seeks to solve these problems.
（問題点を解決するための手段及び作用）このため本発
明は、補強繊維を含む樹脂材料を。(Means and effects for solving the problems) Therefore, the present invention uses a resin material containing reinforcing fibers.
ピストンの軸方向から金型内へ圧縮流人させ１次いで加
熱、加圧成形を行なうようにしてなるもので、これを問
題点解決のための手段及び作用とするものモある。There is a method in which compression flow is carried out from the axial direction of the piston into the mold, followed by heating and pressure molding, and this is used as a means and function to solve the problem.
（実施例） 以下不発明を図面の実施例に基いて説明すると。(Example) The invention will be explained below based on the embodiments shown in the drawings.
第１図〜第４図は本発明の実施例を示し、第１図は補強
繊維ｌがランダムに混在した樹脂材料を使゛用して、加
熱、加圧成形してなるピストン２０断面図を示し、第２
図は補強繊維ｌが一方向に配列したプリプレグを使用し
て、加熱、加圧成形してなるピストン２１の正面断面図
を示Ｉ７、これらは第３図及び第４図に示す方法により
成形される。1 to 4 show embodiments of the present invention, and FIG. 1 is a cross-sectional view of a piston 20 formed by heating and pressure molding using a resin material in which reinforcing fibers are randomly mixed. show, second
The figure shows a front cross-sectional view of a piston 21 formed by heating and pressure molding using a prepreg in which reinforcing fibers are arranged in one direction. Ru.
即ち、第３図に示す如く補強繊維ｌがランダムに混在し
た樹脂材料３、又は補強繊維ｌが一方向−に配列した樹
脂材料３′を予め金型４．５の型内にチャージステージ
に設置（補強繊維ｌが一方向に配列したプリプレグは製
品の長さより該繊維がθ〜２０ｗ長（なるよう、かつ圧
縮面表層部６にほぼ垂直に設置）した後金型４．５を閉
じ１次いでサイドコア７が図示しない油圧シリンダで矢
印方向に押圧されて第４図の所定位置に達した後１反対
側のサイドコア８を矢印方向に図示しない油圧シリンダ
で図面の位置まで押圧し、第４図の如（加熱成形された
製品を加熱硬化することにより。That is, as shown in FIG. 3, a resin material 3 in which reinforcing fibers 1 are randomly mixed, or a resin material 3' in which reinforcing fibers 1 are arranged in one direction is placed in advance on a charge stage in a mold 4.5. (For the prepreg in which the reinforcing fibers are arranged in one direction, the length of the fibers is θ ~ 20w longer than the length of the product (and installed almost perpendicular to the compressed surface layer 6), then the mold 4.5 is closed and the first step is After the side core 7 is pressed in the direction of the arrow by a hydraulic cylinder (not shown) and reaches the predetermined position shown in FIG. 4, the side core 8 on the opposite side is pressed in the direction of the arrow to the position shown in the drawing by a hydraulic cylinder (not shown). (by heating and curing the thermoformed product.
第１図及び第２図に示すように補強繊維が配列したピス
トンが得られる。A piston in which reinforcing fibers are arranged as shown in FIGS. 1 and 2 is obtained.
即ち、補強繊維ｌがランダムに混在した樹脂材料３の場
合は、サイドコア７の抑圧により該材料３は金型中央部
の狭い通路９を通って左側の空間１０にも圧縮されて流
人し１次いでサイドコア８で押圧すると、ピストンの圧
縮面表層部６には補強繊維ｌが実質的に平行に配列し、
該表層部６以外のピストン内部１１においては、実質的
に補強繊維ｌが圧縮面表層部６に垂直に配列される状態
となる。また補強繊維ｌが一方向に配列したプリプレグ
の場合は、第２図の如（補強繊維ｌは一層顕著な実質的
配向を示す。That is, in the case of a resin material 3 in which reinforcing fibers 1 are randomly mixed, the material 3 passes through the narrow passage 9 in the center of the mold and is compressed into the space 10 on the left side due to the suppression of the side core 7, causing the material 3 to flow into the space 10. Next, when the side core 8 is pressed, the reinforcing fibers 1 are arranged substantially in parallel on the compression surface surface layer 6 of the piston.
Inside the piston 11 other than the surface layer 6, the reinforcing fibers 1 are substantially arranged perpendicularly to the compression surface layer 6. Further, in the case of a prepreg in which the reinforcing fibers l are arranged in one direction, as shown in FIG. 2 (the reinforcing fibers l show a more pronounced substantial orientation).
（発明の効果）
以上詳細に説明（−だ如（本発明は構成されているので
、成形されたピストンの内部にはクラックやボイドが生
じることがなく、ピストンの圧縮時にシリンダ内のガス
の拡散を防止して圧縮効果を高めることができる。また
圧縮流人、加熱加圧成形により、補強繊維が各表層部と
実質的にほぼ平行状となり、従ってアルミニウム合金以
上の強度が得られると共に、従来のような樹脂コーティ
ングの必要はなく、また摺動特性が向上し、コンプレッ
サに用いる場合にはその軽量化及び消音の面で極めて優
れた・効果を発揮できる。(Effects of the Invention) As explained in detail above (-Due to the structure of the present invention, cracks and voids do not occur inside the molded piston, and when the piston is compressed, the gas inside the cylinder is diffused.) In addition, by compression flow casting and heating and pressure forming, the reinforcing fibers become substantially parallel to each surface layer. There is no need for a resin coating like that, and the sliding properties are improved, and when used in a compressor, it can be extremely effective in terms of weight reduction and noise reduction.
第１図及び第２図は夫々本発明方法により得られたピス
トンの正面断面図、第３図及び第４図は前記ピストンの
成形状態を示す説明図である。
図の主要部分の説明
ｌ・・・補強繊維 ２ ２／・・・ピストン３．３１
・・・樹脂材料 ４，５・・・金型６・・・圧縮面表
層部 ７．８・・・サイドコア９・・・狭い通路
１０・・・空間１１・・・・・・ビストノ内部FIGS. 1 and 2 are front sectional views of a piston obtained by the method of the present invention, and FIGS. 3 and 4 are explanatory views showing the molded state of the piston. Explanation of main parts of the figure l... Reinforcement fiber 2 2/... Piston 3.31
...Resin material 4,5...Mold 6...Compression surface surface layer part 7.8...Side core 9...Narrow passage
10...Space 11...Inside Bistono
Claims (1)
内へ圧縮流人させ、次いで加熱、加圧成形を行なうこと
を特徴とする一繊維強化樹脂製小型ピストンの製造方法
。A method for producing a small piston made of a single fiber-reinforced resin, characterized by compressing and flowing a resin material containing reinforcing fibers into a mold from the axial direction of the piston, followed by heating and pressure molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9577786A JPS62251568A (en) | 1986-04-24 | 1986-04-24 | Fiber reinforced plastic small-sized piston and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9577786A JPS62251568A (en) | 1986-04-24 | 1986-04-24 | Fiber reinforced plastic small-sized piston and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62251568A true JPS62251568A (en) | 1987-11-02 |
Family
ID=14146910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9577786A Pending JPS62251568A (en) | 1986-04-24 | 1986-04-24 | Fiber reinforced plastic small-sized piston and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62251568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368684C (en) * | 2004-06-01 | 2008-02-13 | 住友橡胶工业株式会社 | Compact simplified compressor apparatus |
| WO2019107559A1 (en) * | 2017-11-30 | 2019-06-06 | 日立化成株式会社 | Disk brake |
-
1986
- 1986-04-24 JP JP9577786A patent/JPS62251568A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368684C (en) * | 2004-06-01 | 2008-02-13 | 住友橡胶工业株式会社 | Compact simplified compressor apparatus |
| WO2019107559A1 (en) * | 2017-11-30 | 2019-06-06 | 日立化成株式会社 | Disk brake |
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