JPS6338567A - Combination of sliding body - Google Patents
Combination of sliding bodyInfo
- Publication number
- JPS6338567A JPS6338567A JP18159386A JP18159386A JPS6338567A JP S6338567 A JPS6338567 A JP S6338567A JP 18159386 A JP18159386 A JP 18159386A JP 18159386 A JP18159386 A JP 18159386A JP S6338567 A JPS6338567 A JP S6338567A
- Authority
- JP
- Japan
- Prior art keywords
- sliding
- fiber
- sliding body
- reinforced
- combination
- 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 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 9
- 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 9
- 239000004917 carbon fiber Substances 0.000 claims abstract description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 6
- 229910001234 light alloy Inorganic materials 0.000 claims abstract description 6
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 238000005461 lubrication Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 abstract description 3
- 150000004767 nitrides Chemical class 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
Classifications
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- 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
- F02F1/18—Other cylinders
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/20—Multi-cylinder engines with cylinders all in one line
-
- 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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/108—Siamese-type cylinders, i.e. cylinders cast together
-
- 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
- F02F7/0002—Cylinder arrangements
- F02F7/0007—Crankcases of engines with cylinders in line
-
- 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
-
- 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
- F16J1/02—Bearing surfaces
-
- 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
- F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
- F16J10/02—Cylinders designed to receive moving pistons or plungers
- F16J10/04—Running faces; Liners
-
- 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
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1816—Number of cylinders four
-
- 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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F2001/106—Cylinders; Cylinder heads having cooling means for liquid cooling using a closed deck, i.e. the water jacket is not open at the block top face
-
- 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
- F02F1/24—Cylinder heads
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
-
- 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
- F02F2007/009—Hypereutectic aluminum, e.g. aluminum alloys with high SI content
-
- 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
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- 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
- F05C2201/04—Heavy metals
- F05C2201/0403—Refractory metals, e.g. V, W
- F05C2201/0406—Chromium
-
- 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
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0436—Iron
-
- 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
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
-
- 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
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/04—Phosphor
-
- 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
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0804—Non-oxide ceramics
- F05C2203/0808—Carbon, e.g. graphite
-
- 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
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0865—Oxide ceramics
- F05C2203/0869—Aluminium oxide
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- 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
- F05C2251/00—Material properties
- F05C2251/04—Thermal properties
- F05C2251/042—Expansivity
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- 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)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
Description
【発明の詳細な説明】
A9発明の目的
(1)産業上の利用分野
本発明は摺動体の組合せ、特に)S動部を強化繊維体に
より強化した軽合金製第1摺動体と、鉄系第2摺動体と
、よりなるものの改良に関する。Detailed Description of the Invention A9 Objective of the Invention (1) Industrial Application Field The present invention relates to a combination of sliding bodies, particularly) a first sliding body made of a light alloy whose S moving part is reinforced with a reinforcing fiber body, and The present invention relates to improvements in the second sliding body and the like.
(2)従来の技術
従来、この種摺動体の組合せは、第2摺動体の摺動面が
第1摺動体の繊維強化された摺動面に直接摺動するよう
に構成されている。(2) Prior Art Conventionally, this type of combination of sliding bodies has been constructed such that the sliding surface of the second sliding body slides directly on the fiber-reinforced sliding surface of the first sliding body.
(3)発明が解決しようとする問題点
しかしながら前記のように構成すると、潤滑が不十分な
場合、第1摺動体に対する第2摺動体のなじみ性、第2
摺動体から脱落した硬さの高い炭化物等に起因して第2
摺動体における摺動面の摩耗量が増加するという問題が
ある。(3) Problems to be solved by the invention However, with the above configuration, if lubrication is insufficient, the conformability of the second sliding body to the first sliding body,
Due to hard carbide etc. that fell off the sliding body, the second
There is a problem in that the amount of wear on the sliding surface of the sliding body increases.
本発明は前記問題を解決し得る前記摺動体の紺合せを提
供することを目的とする。An object of the present invention is to provide a method for fitting the sliding bodies that can solve the above problems.
B9発明の構成
(1)問題点を解決するための手段
本発明は、前記第2摺動体の摺動面に窒化層を形成する
と共に咳摺動面の炭化物面積率を5%以下に設定したこ
とを特徴とする。B9 Structure of the Invention (1) Means for Solving Problems The present invention forms a nitride layer on the sliding surface of the second sliding body, and sets the carbide area ratio of the sliding surface to 5% or less. It is characterized by
(2)作 用
第2摺動体の窒化層を形成された摺動面は、第1摺動体
の繊維強化された摺動部とのなじみ性が良好で、また硬
度も高い。その上摺動面の炭化物面積率が5%以下に設
定されているので、炭化物の脱落が抑制される。これに
より潤滑が不十分な場合でも第2摺動体における摺動面
の摩耗量を減少することができる。(2) Function The sliding surface of the second sliding body on which the nitrided layer is formed has good compatibility with the fiber-reinforced sliding portion of the first sliding body, and also has high hardness. Moreover, since the area ratio of carbide on the sliding surface is set to 5% or less, falling off of carbide is suppressed. Thereby, even when lubrication is insufficient, the amount of wear on the sliding surface of the second sliding body can be reduced.
第2摺動体における摺動面の炭化物面積率が5%を上回
ると、炭化物の脱落量が増加してその摺動面の摩耗量が
増加する。When the area ratio of carbide on the sliding surface of the second sliding body exceeds 5%, the amount of carbide falling off increases and the amount of wear on the sliding surface increases.
(3)実施例
第1図において、内燃機関Eは、第1摺動体としてのシ
リンダブロックlと、そのシリンダブロックlにガスケ
ット2を介して重合結着されたシリンダへ、ド3を有す
る。(3) Embodiment In FIG. 1, an internal combustion engine E has a cylinder block l as a first sliding body, and a door 3 connected to the cylinder which is polymerically bonded to the cylinder block l via a gasket 2.
シリンダブロック1のシリンダボア4にピストン5が摺
合され、そのピストン5の3本のリングt:’i 6
+〜6.に、第2図に明示する第2摺動体としてのピス
トンリング71〜73が装着される。A piston 5 is slid into the cylinder bore 4 of the cylinder block 1, and the three rings t:'i 6 of the piston 5 are
+~6. Piston rings 71 to 73 as second sliding bodies shown in FIG. 2 are attached to the piston rings 71 to 73 as second sliding bodies.
それらピストンリング71〜73のうち、ピストンヘッ
ド5a側の2本は圧縮リングであり、残りの1本はオイ
ルリングである。Among these piston rings 71 to 73, two on the piston head 5a side are compression rings, and the remaining one is an oil ring.
シリンダブロック1は、軽合金としてのJTSADC1
2等のアルミニウム合金より構成され、その摺動部とし
てのシリンダポア4回りはアルミナ繊維と炭素(Δい]
tとを混合した筒状強化繊維体により強化されている。Cylinder block 1 is JTSADC1 as a light alloy
It is made of 2nd grade aluminum alloy, and the sliding parts around the 4 cylinder pores are made of alumina fiber and carbon (∆).
It is reinforced by a cylindrical reinforcing fiber body mixed with t.
即ち、シリンダボア4回りは、強化繊維体とそれに充填
されたアルミニウム合金マトリックスとよりなる繊維強
化複合筒体Cより構成される。この場合、繊維強化複合
筒体Cに対するアルミナ繊維の繊維体積率は8〜30%
、図示例では12%、また繊維強化複合筒体Cに対する
炭素繊維のそれは15%以下、図示例では9%である。That is, the area around the cylinder bore 4 is constituted by a fiber-reinforced composite cylindrical body C made of a reinforced fiber body and an aluminum alloy matrix filled therein. In this case, the fiber volume ratio of alumina fiber to the fiber-reinforced composite cylinder C is 8 to 30%.
, is 12% in the illustrated example, and that of carbon fiber with respect to the fiber-reinforced composite cylinder C is 15% or less, and 9% in the illustrated example.
各ピストンリング71〜7.は、JIS 5US42
0J2といったマルテンサイト系ステンレス鋼等の鉄系
材料より構成され、摺動面としての各外周面7aに55
0〜600℃、5時間のNll、ガス窒化処理により窒
化層が形成される。また各外周面7aの炭化物面積率は
5%以下、図示例では1%以下に設定される。Each piston ring 71-7. is JIS 5US42
It is made of iron-based material such as martensitic stainless steel such as 0J2, and each outer peripheral surface 7a as a sliding surface has 55
A nitrided layer is formed by NII gas nitriding treatment at 0 to 600° C. for 5 hours. Further, the carbide area ratio of each outer circumferential surface 7a is set to 5% or less, and in the illustrated example, 1% or less.
第3図はピストンリング7I〜7.および繊維強化複合
筒体Cの摩耗テスト結果を示し、第3図より炭化物面積
率が5%以下であればピストンリング7.〜73および
繊維強化複合筒体Cの摩耗量が少なく、実用上前等支障
を生しることはない。FIG. 3 shows piston rings 7I to 7. and the wear test results of the fiber-reinforced composite cylinder C. From FIG. 3, if the carbide area ratio is 5% or less, the piston ring 7. ~73 and the amount of wear of the fiber-reinforced composite cylindrical body C is small, and does not cause any practical problems.
摩耗テストは、前記ピストンリング7、〜7゜と同種の
テストピースを、前記繊維強化複合筒体Cと同種のテス
トピースに対して距離40kmに亘って摺動させること
により行われた。The wear test was conducted by sliding a test piece of the same type as the piston rings 7, ~7° against a test piece of the same type as the fiber-reinforced composite cylinder C over a distance of 40 km.
前記のようにシリンダブロック1において、そのシリン
ダボア4回りの強化繊維体をアルミナ繊維と炭素繊維と
より構成し、同時にそれらの繊維体積率を前記のように
特定すると、シリンダボア4回りの強化を十分に達成し
、またシリンダボア4回りのi′it焼付き性および耐
摩耗性を向上させ、さらにシリンダボア4内周面に露出
する炭素繊維の潤滑能を得ることができる。As mentioned above, in the cylinder block 1, if the reinforcing fibers around the cylinder bores 4 are composed of alumina fibers and carbon fibers, and at the same time the fiber volume percentage is specified as above, the reinforcement around the cylinder bores 4 can be sufficiently reinforced. In addition, it is possible to improve the seizure resistance and wear resistance around the cylinder bore 4, and to obtain the lubricating ability of the carbon fibers exposed on the inner circumferential surface of the cylinder bore 4.
ただし、アルミナ繊維の繊維体積率が8%を下回ると、
摺動部に対する繊維強化能が小さく、また耐摩耗性およ
び耐焼付き性が低下する。一方、繊維体積率が30%を
上回ると、マトリックスであるアルミニウム合金の充填
性が悪化して繊維強化を十分に行うことができず、また
摺動部の硬さが増して相手材である第2摺動体の摩耗量
が増加し、その上熱伝導率も低下する。However, if the fiber volume percentage of alumina fiber is less than 8%,
Fiber reinforcement ability for sliding parts is small, and wear resistance and seizure resistance are reduced. On the other hand, if the fiber volume fraction exceeds 30%, the filling properties of the aluminum alloy matrix will deteriorate, making it impossible to achieve sufficient fiber reinforcement, and the hardness of the sliding part will increase, resulting in 2. The amount of wear on the sliding body increases, and the thermal conductivity also decreases.
炭素繊維は、前記のように潤滑性、特に焼付き限界特性
およびスクラッチ限界特性を向上させる効果を有するが
、その繊維体積率が15%を上回ると、アルミナ繊維量
との関係で総繊維体積率が高くなり、その混合繊維体の
成形性が悪化する。As mentioned above, carbon fiber has the effect of improving lubricity, especially seizure limit characteristics and scratch limit characteristics, but when its fiber volume percentage exceeds 15%, the total fiber volume percentage decreases in relation to the amount of alumina fiber. becomes high, and the formability of the mixed fiber body deteriorates.
また炭素繊維の繊維体積率が0.3%を下回ると、その
潤滑能が低下する。Moreover, when the fiber volume fraction of carbon fiber is less than 0.3%, its lubricating ability decreases.
窒化層を形成されたピストンリング7□〜73の外周面
7aは、前記構成のシリンダポア、1内周面となじみ性
が良好で、また硬度も高く、その上外周面の炭化物面積
率が5%以下に設定されているので、炭素繊維の潤滑能
と相俟って、潤滑が不十分な場合でもピストンリング7
、〜7.における外周面7aの摩耗量を減少することが
できる。The outer circumferential surfaces 7a of the piston rings 7□ to 73 on which the nitrided layer is formed have good compatibility with the inner circumferential surfaces of the cylinder pores 1 having the above structure, and have high hardness, and furthermore, the carbide area ratio of the outer circumferential surfaces is 5%. Since the setting is as follows, together with the lubricating ability of carbon fiber, even if the lubrication is insufficient, the piston ring 7
,~7. The amount of wear on the outer peripheral surface 7a can be reduced.
前記アルミナ繊維としては長繊維、短繊維、ウィスカ等
が該当し、例えば、ICI社製・商品名サフイル、デニ
ポン社製・商品名Fiber FP等を挙げることが
できる。The alumina fibers include long fibers, short fibers, whiskers, etc., and include, for example, SAFIL manufactured by ICI and Fiber FP manufactured by Denipon.
なお、軽合金としてはマグネシウム合金等の使用が可能
であり、また窒化層はピストンリング7、〜73の全体
に形成してもよく、さらに本発明は内燃機関以外のもの
にも適用される。Note that a magnesium alloy or the like can be used as the light alloy, and the nitrided layer may be formed on the entire piston rings 7, 73, and the present invention is also applicable to other than internal combustion engines.
C1発明の効果
本発明によれば、第2摺動体の摺動面に、第1摺動体の
繊維強化された摺動部に対してなじみ性が良好な窒化層
を形成し、また摺動面の炭化物面fa率を5%以下に特
定したので、潤滑が不十分な場合でも第2摺動体におけ
ろ摺動面の摩耗量を残少することができる。C1 Effect of the Invention According to the present invention, a nitrided layer having good conformability to the fiber-reinforced sliding portion of the first sliding body is formed on the sliding surface of the second sliding body, and the sliding surface Since the fa ratio of the carbide surface is specified to be 5% or less, the amount of wear on the sliding surface of the second sliding body can be kept small even when lubrication is insufficient.
図面は本発明の一実施例を示し、第1図は内燃機関の縦
断正面図、第2図はピストンリングの斜視図、第3図は
ピストンリングおよび繊維強化複合筒体の摩耗テスト結
果を示すグラフである。
C・・・摺動部としての繊維強化複合筒体、■・・・第
1摺動体としてのシリンダブロック、71〜73・・・
第2摺動体としてのピストンリング、7a・・・摺動面
としての外周面
特 許 出 願 人 本田技研工業株式会社代理人
弁理士 落 合 健第1図
jI2図
第3図The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional front view of an internal combustion engine, Fig. 2 is a perspective view of a piston ring, and Fig. 3 shows the results of a wear test on the piston ring and a fiber-reinforced composite cylinder. It is a graph. C...Fiber-reinforced composite cylindrical body as a sliding part, ■...Cylinder block as a first sliding body, 71-73...
Piston ring as the second sliding body, 7a...Outer peripheral surface as the sliding surface Patent Applicant Agent for Honda Motor Co., Ltd.
Patent Attorney Ken OchiaiFigure 1jI2Figure 3
Claims (3)
摺動体と、鉄系第2摺動体と、よりなる摺動体の紐合せ
において、前記第2摺動体の摺動面に窒化層を形成する
と共に該摺動面の炭化物面積率を5%以下に設定したこ
とを特徴とする、摺動体の組合せ。(1) Light alloy first part with sliding parts reinforced with reinforced fibers
In the combination of a sliding body, a second iron-based sliding body, and a sliding body, a nitrided layer is formed on the sliding surface of the second sliding body, and the carbide area ratio of the sliding surface is set to 5% or less. A combination of sliding bodies characterized by the following settings.
繊維体はアルミナ繊維と炭素繊維とより構成されると共
に前記摺動部に対する前記アルミナ繊維の繊維体積率は
8〜30%に、また前記摺動部に対する前記炭素繊維の
繊維体積率は15%以下にそれぞれ設定される、特許請
求の範囲第(1)項記載の摺動体の組合せ。(2) The light alloy is an aluminum alloy, the reinforcing fiber body is composed of alumina fibers and carbon fibers, and the fiber volume ratio of the alumina fibers to the sliding portion is 8 to 30%, and The combination of sliding bodies according to claim 1, wherein the fiber volume ratio of the carbon fibers to the moving parts is set to 15% or less.
りとした内燃機関用シリンダブロックであり、また前記
第2摺動体は、前記摺動面を外周面としたピストンリン
グである、特許請求の範囲第(1)または第(2)項記
載の摺動体の組合せ。(3) The first sliding body is a cylinder block for an internal combustion engine in which the sliding part is around the cylinder bore, and the second sliding body is a piston ring in which the sliding surface is the outer peripheral surface. A combination of sliding bodies according to claim (1) or (2).
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18159386A JPS6338567A (en) | 1986-08-01 | 1986-08-01 | Combination of sliding body |
DE3725495A DE3725495A1 (en) | 1986-07-31 | 1987-07-31 | INTERNAL COMBUSTION ENGINE |
GB8718149A GB2193786B (en) | 1986-07-31 | 1987-07-31 | Internal combustion engine |
US07/080,495 US4817578A (en) | 1986-07-31 | 1987-07-31 | Internal combustion engine |
FR878710905A FR2602272B1 (en) | 1986-07-31 | 1987-07-31 | INTERNAL COMBUSTION ENGINE INCLUDING A FIBER REINFORCED AREA CYLINDER BLOCK AND SLIDING SEGMENT PISTONS IN THE BORE OF THE CYLINDER |
CA000543531A CA1328385C (en) | 1986-07-31 | 1987-07-31 | Internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18159386A JPS6338567A (en) | 1986-08-01 | 1986-08-01 | Combination of sliding body |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6338567A true JPS6338567A (en) | 1988-02-19 |
Family
ID=16103520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18159386A Pending JPS6338567A (en) | 1986-07-31 | 1986-08-01 | Combination of sliding body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6338567A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63243237A (en) * | 1987-03-31 | 1988-10-11 | Yanmar Diesel Engine Co Ltd | Frm wear-resistant parts containing graphitic carbon fiber |
US7493882B2 (en) | 2006-08-31 | 2009-02-24 | Nippon Piston Ring Co., Ltd. | Combination of a cylinder liner and a piston ring |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5154006A (en) * | 1974-11-07 | 1976-05-12 | Honda Motor Co Ltd | |
JPS524416A (en) * | 1975-06-30 | 1977-01-13 | Mazda Motor Corp | Oil seal for rotary piston engine |
JPS6155062B2 (en) * | 1982-12-28 | 1986-11-26 | New Cosmos Electric Co |
-
1986
- 1986-08-01 JP JP18159386A patent/JPS6338567A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5154006A (en) * | 1974-11-07 | 1976-05-12 | Honda Motor Co Ltd | |
JPS524416A (en) * | 1975-06-30 | 1977-01-13 | Mazda Motor Corp | Oil seal for rotary piston engine |
JPS6155062B2 (en) * | 1982-12-28 | 1986-11-26 | New Cosmos Electric Co |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63243237A (en) * | 1987-03-31 | 1988-10-11 | Yanmar Diesel Engine Co Ltd | Frm wear-resistant parts containing graphitic carbon fiber |
US7493882B2 (en) | 2006-08-31 | 2009-02-24 | Nippon Piston Ring Co., Ltd. | Combination of a cylinder liner and a piston ring |
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