JPS6338567A - Combination of sliding body - Google Patents

Combination of sliding body

Info

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
Application number
JP18159386A
Other languages
Japanese (ja)
Inventor
Hideaki Ushio
牛尾　英明
Naoyoshi Hayashi
林　直義
Kazuo Shibata
一雄 柴田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP18159386A priority Critical patent/JPS6338567A/en
Priority to DE3725495A priority patent/DE3725495A1/en
Priority to GB8718149A priority patent/GB2193786B/en
Priority to US07/080,495 priority patent/US4817578A/en
Priority to FR878710905A priority patent/FR2602272B1/en
Priority to CA000543531A priority patent/CA1328385C/en
Publication of JPS6338567A publication Critical patent/JPS6338567A/en
Pending legal-status Critical Current

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 
    • 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
    • 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
    • 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
    • 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

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  • 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

PURPOSE:To decrease the wear loss of the sliding surface of the iron sliding body of a combination consisting of a sliding body made of a fiber reinforced light alloy and the iron sliding body even if lubrication is not enough by forming a nitride layer on the sliding surface of the latter in the above-mentioned combination and limiting the carbide area rate of the sliding surface. CONSTITUTION:For example, a cylinder block 1 of an internal combustion engine E is constituted of an Al alloy and the periphery of a cylinder bore 4 as the sliding part thereof is reinforced with a cylindrical reinforcing fiber body formed by mixing alumina fibers and carbon fibers. More specifically, the periphery of the cylinder bore 4 is constituted of a composite fiber-reinforced cylindrical body C consisting of the reinforcing fiber body and the al alloy matrix packed therein. Respective piston rings 71-72 are constituted of the iron materials such as stainless steel and the nitride layer is formed on the respective peripheral faces 7a as the sliding surfaces. The carbide area rate of the faces 7a is specified to <=5%.

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.

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【特許請求の範囲】[Claims] （１）摺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. （２）前記軽合金はアルミニウム合金であり、前記強化
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. （３）前記第１摺動体は、前記摺動部をシリンダボア回
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).
JP18159386A 1986-07-31 1986-08-01 Combination of sliding body Pending JPS6338567A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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