JPH02217666A - Piston ring for internal combustion engine - Google Patents
Piston ring for internal combustion engineInfo
- Publication number
- JPH02217666A JPH02217666A JP3793989A JP3793989A JPH02217666A JP H02217666 A JPH02217666 A JP H02217666A JP 3793989 A JP3793989 A JP 3793989A JP 3793989 A JP3793989 A JP 3793989A JP H02217666 A JPH02217666 A JP H02217666A
- Authority
- JP
- Japan
- Prior art keywords
- piston ring
- internal combustion
- combustion engine
- tensile strength
- weight
- 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
- 238000002485 combustion reaction Methods 0.000 title claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 19
- 239000000126 substance Substances 0.000 claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 7
- 239000002244 precipitate Substances 0.000 claims description 10
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 238000001192 hot extrusion Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000009694 cold isostatic pressing Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- ZJIRFPOFCZNBAC-UHFFFAOYSA-N 4-amino-2-(2-amino-2-carboxyethyl)sulfanylbutanoic acid Chemical compound NCCC(C(O)=O)SCC(N)C(O)=O ZJIRFPOFCZNBAC-UHFFFAOYSA-N 0.000 description 1
- 108010020212 4-amino-2-(S-cysteinyl)butyric acid Proteins 0.000 description 1
- -1 NbY Inorganic materials 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009689 gas atomisation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
【発明の詳細な説明】 Ａ３発明の目的 （１） 産業上の利用分野 本発明は内燃機関用ピストンリングに関する。[Detailed description of the invention] A3 Purpose of the invention (1) Industrial application field The present invention relates to piston rings for internal combustion engines.
（２）従来の技術
従来、この種ピストンリングは鋳鉄、ばね鋼、ステンレ
ス鋼等の鉄系材料より構成されている（例えば、日刊工
業新聞社発行、「ピストンリング」参照）。(2) Prior Art Conventionally, piston rings of this type have been made of iron-based materials such as cast iron, spring steel, and stainless steel (see, for example, "Piston Rings" published by Nikkan Kogyo Shimbun).
（３）発明が解決しようとする課題
近時内燃機関は高回転および高出力化の傾向にあり、そ
れに対応してピストンリングには軽量化が要求される。(3) Problems to be Solved by the Invention In recent years, internal combustion engines have tended to have higher rotation speeds and higher outputs, and correspondingly, piston rings are required to be lighter.
前記鉄系材料よりも低比重な材料としては、アルミニウ
ム合金を挙げることができるが、現状ではアルミニウム
合金の高温強度が低いため、その合金よりピストンリン
グを構成すると、機関運転中における高温下、例えば２
００〜３００ ”Ｃにてピストンリングの引張強さが大
幅に低下し、その結果、ブローバイガス量およびオイル
消費量の増加を招くといった問題を生じる。An example of a material with a lower specific gravity than the iron-based material is an aluminum alloy, but currently aluminum alloys have low high-temperature strength, so if a piston ring is made of such an alloy, it will not work under high temperatures during engine operation, e.g. 2
00 to 300''C, the tensile strength of the piston ring decreases significantly, resulting in problems such as an increase in the amount of blow-by gas and oil consumption.
本発明は前記問題を解決し得る、軽量で、且つ優秀な高
温強度を備えた前記ピストンリングを提供することを目
的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a piston ring that is lightweight and has excellent high-temperature strength, which can solve the above problems.
Ｂ１発明の構成
（１）課題を解決するための手段
本発明は、Ｃｒ、Ｆｅ、ＺｒおよびＴｉから選択される
少なくとも一種を５〜３０重四％含有し、また析出物お
よび晶出物の平均直径が１０１！ｍ以下であり、さらに
３００℃における引張強さが２０ ｋｇ ／ Ｍ ”以
上であるアルミニウム合金より構成されることを特徴と
する。B1 Structure of the Invention (1) Means for Solving the Problems The present invention contains 5 to 30% by weight of at least one selected from Cr, Fe, Zr and Ti, and also contains an average of precipitates and crystallized substances. The diameter is 101! m or less, and is characterized by being made of an aluminum alloy having a tensile strength at 300° C. of 20 kg/M” or more.
また本発明は、Ｃｒ、Ｆｅ、Ｚｒ、Ｔｉ、Ｍｎ、Ｎｉ、
Ｖ、Ｃｅ、、Ｍｏ、 Ｌａ、、Ｎｂ５Ｙ、、Ｈｆおよび
ＣＯから選択される少なくとも一種を５〜３０重量％含
有し、また析出物および晶出物の平均直径が１０μｍ以
下であり、さらに３００ ’Ｃにおける引張強さが２０
ｋｇ／ｍｍ”以上であるアルミニウム合金より構成され
ることを特徴とする。Further, the present invention provides Cr, Fe, Zr, Ti, Mn, Ni,
It contains 5 to 30% by weight of at least one selected from V, Ce, Mo, La, NbY, Hf and CO, and the average diameter of precipitates and crystallized substances is 10 μm or less, and further 300' Tensile strength at C is 20
kg/mm" or more.
（２）作 用
前記アルミニウム合金より構成されカビストンリングは
、軽量で、且つ優秀な高温強度を備え、また熱間押出し
加工等による生産性も良好である。(2) Function The mold stone ring made of the aluminum alloy is lightweight and has excellent high-temperature strength, and also has good productivity through hot extrusion processing and the like.
たメ゛シ、前記化学成分の含有量が５重量％を下回ると
、高温強度改善効果が得られず、一方、３０重量％を上
回ると、前記効果の減退、伸びの低下、加工性の劣化、
切欠き感度の増加に伴う耐久性の減少、製造コストの上
昇等の不具合を生じる。However, if the content of the chemical components is less than 5% by weight, the effect of improving high-temperature strength cannot be obtained, while if it exceeds 30% by weight, the above-mentioned effects are diminished, elongation is decreased, and workability is deteriorated. ,
This results in problems such as decreased durability and increased manufacturing costs due to increased notch sensitivity.
また析出物および晶出物の平均直径が１０μｍを上回る
と、高温強度が低下して張力が減退し、その結果、ブロ
ーバイガス量およびオイル消費量が増加する。Moreover, when the average diameter of precipitates and crystallized substances exceeds 10 μm, the high temperature strength decreases and the tension decreases, resulting in an increase in the amount of blow-by gas and oil consumption.
さらに、３００ ’Ｃにおける引張強さが２０ｋｇ／Ｍ
２を下回ると、前記同様に高温強度が低下し、それに伴
い張力の減退を生じて同様の不具合を発生する。Furthermore, the tensile strength at 300'C is 20kg/M
If it is less than 2, the high-temperature strength decreases as described above, and the tension accordingly decreases, causing similar problems.
（３）実施例
第１．第２図に示す内燃機関用ピストンリング１はアル
ミニウム合金より構成される。(3) Example 1. A piston ring 1 for an internal combustion engine shown in FIG. 2 is made of an aluminum alloy.
表■は、本発明に用いられるアルミニウム合金Ａ１〜Ａ
Ｉ６および比較例アルミニウム合金Ｂ、〜Ｂ、の組成
を示す。Table 2 shows aluminum alloys A1 to A used in the present invention.
The compositions of I6 and comparative example aluminum alloys B and ~B are shown.
表■は、前記合金Ａ、−Ａ、。およびＢ、〜Ｂ。Table 3 shows the alloys A, -A, and the like. and B, ~B.
における析出物および晶出物の平均直径と３００℃にお
ける引張強さとの関係を示し、また表■は、前記合金Ａ
＋ 、Ａｈにおける析出物および晶出物の平均直径と３
００℃における引張強さとの関係を示す。Table 3 shows the relationship between the average diameter of precipitates and crystallized substances and the tensile strength at 300°C.
+, the average diameter of precipitates and crystallized substances in Ah and 3
The relationship with tensile strength at 00°C is shown.
表 ■
表Ｉ〜■から明らかなように、前記化学成分の総合有量
が５〜３０重景％の範囲にあり、また析出物および晶出
物の平均直径が１０μｍ以下であれば、３００ ’Ｃに
おける引張強さ２０ｋｇ／ｍｍ”以上を確保することが
できる。Table ■ As is clear from Tables I to ■, if the total amount of the chemical components is in the range of 5 to 30% and the average diameter of precipitates and crystallized substances is 10 μm or less, A tensile strength of 20 kg/mm'' or more at C can be secured.
次に、前記と同種アルミニウム合金、即ち、Ｃｒ６重量
％、Ｆｅ ３重量％、Ｚｒ ２重量％および残部Ａ
Ｉ！、より構成されるアルミニウム合金を用いたピスト
ンリングの製造例について説明する。Next, an aluminum alloy of the same type as above, that is, 6% by weight of Cr, 3% by weight of Fe, 2% by weight of Zr, and the balance A
I! An example of manufacturing a piston ring using an aluminum alloy composed of the following will be described.
（ａ） 前記合金組成の溶湯を用い、ガスアトマイズ
法を適用して冷却速度１０２〜１０’°（／ｓｅｃの条
件下でアルミニウム合金粉末を製造した。(a) Using a molten metal having the above alloy composition, an aluminum alloy powder was produced by applying a gas atomization method at a cooling rate of 102 to 10'/sec.
（ｂ） 合金粉末に分級処理を施して平均直径２０μ
ｍの合金粉末を得た。(b) The alloy powder is classified to have an average diameter of 20μ.
m alloy powder was obtained.
（Ｃ） 合金粉末を用い、ＣＩＰ （冷間静水圧プレ
ス法）を適用して、加圧力４０００ ｋｇ／ｃｄ、加圧
時間１分間の条件下で、直径１６０＋＋ｏ、長さ２００
ｍｍ、密度８５％の圧粉体を得た。(C) Using alloy powder, applying CIP (cold isostatic pressing method), under the conditions of a pressing force of 4000 kg/cd and a pressing time of 1 minute, a diameter of 160++ o and a length of 200 mm was obtained.
A green compact with a density of 85% was obtained.
（ｄ） 圧粉体をＡｒガス雰囲気下にて４５０℃に加
熱し、押出し比１０以上の条件下で熱間押出し加工を行
い、直径５０皿、長さ１８００ｍの丸棒状焼結体を得た
。(d) The compact was heated to 450°C in an Ar gas atmosphere and hot extruded under conditions of an extrusion ratio of 10 or more to obtain a round bar-shaped sintered body with a diameter of 50 plates and a length of 1800 m. .
（ｅ） 焼結体より切出された円盤状素材に機械加工
を施して、合い口２（第１図）を有するリング状素材を
得た。(e) The disk-shaped material cut out from the sintered body was machined to obtain a ring-shaped material having abutment 2 (FIG. 1).
（ｆ） リング状素材に、加熱温度４５０℃にて熱間
鍛造加工を施した。(f) The ring-shaped material was subjected to hot forging at a heating temperature of 450°C.
（ｇ） リング状素材に研磨等の仕上げ加工を施して
ピストンリング１を得た。(g) A piston ring 1 was obtained by performing finishing processing such as polishing on the ring-shaped material.
このピストンリングにおける析出物および晶出物の平均
直径は２，０μｍで、３００℃における引張強さは３０
ｋｇ／ｃｄであった。The average diameter of precipitates and crystals in this piston ring is 2.0 μm, and the tensile strength at 300°C is 30
kg/cd.
表■は、本発明に係る前記ピストンリングおよび比較例
ピストンリングを、ｌ・ツブリングとして用いた場合の
実機耐久試験結果を示す。この試験は、機関を回転数６
０００ｒｐｍで１００時間連続運転し、その後の機関運
転中におけるブローバイガスｆｆ１（ｆｆｉ／ｗｉｎ
）を求めることによって行われた。Table (2) shows the results of an actual machine durability test when the piston ring according to the present invention and the piston ring of the comparative example were used as l-tube rings. This test runs the engine at 6 rpm.
Blow-by gas ff1 (ffi/win) during engine operation after 100 hours of continuous operation at 000 rpm
) was done by asking for.
表 ■
なお、表■中、ＡＣＢＡ材としてはローエックスが用い
られ、またＡ３９０は、ＡＡ規格 Ａｌ１−８ｉ系合金
である。Table (2) In Table (2), Roex is used as the ACBA material, and A390 is an AA standard Al1-8i alloy.
表■から明らかなように、本発明に係るピストンリング
は、鋳鉄製ピストンリングと同等の高温強度およびブロ
ーバイガス量抑制作用を有し、しかも鋳鉄製ピストンリ
ングに比べて軽量である。As is clear from Table 3, the piston ring according to the present invention has the same high-temperature strength and blow-by gas suppressing effect as a cast iron piston ring, and is also lighter than a cast iron piston ring.
本発明に用いられるアルミニウム合金としては、前記実
施例のように、Ｃｒ、Ｆｅ、Ｍｎ、Ｚｒ、ＴｉおよびＮ
ｉから選択される少なくとも一種の化学成分を含有する
アルミニウム合金の外に、それら化学成分に、■、Ｃｅ
、Ｍｏ、Ｌａ、Ｎｂ。The aluminum alloys used in the present invention include Cr, Fe, Mn, Zr, Ti and N, as in the above examples.
In addition to the aluminum alloy containing at least one chemical component selected from i, these chemical components include ■, Ce
, Mo, La, Nb.
Ｙ、ＨｆおよびＣＯを加えた群から選択される少なくと
も一種の化学成分を含有するアルミニウム合金も該当す
る。Also applicable are aluminum alloys containing at least one chemical component selected from the group plus Y, Hf and CO.
また、これらアルミニウム合金における析出物および晶
出物の体積率は６０％以下に設定される。Further, the volume fraction of precipitates and crystallized substances in these aluminum alloys is set to 60% or less.
その理由は、前記体積率が６０％を上回ると、伸びの低
下、加工性の劣化、切欠き感度の増加に伴う耐久性の減
少等の不具合を生じるからである。This is because if the volume fraction exceeds 60%, problems such as a decrease in elongation, deterioration in workability, and a decrease in durability due to an increase in notch sensitivity will occur.
Ｃ６発明の効果
本発明によれば、前記のように特定のアルミニウム合金
を用いることによって、軽量で、且つ優秀な高温強度を
備え、また生産性の良好な内燃機関用ピストンリングを
提供することができる。C6 Effects of the Invention According to the present invention, by using a specific aluminum alloy as described above, it is possible to provide a piston ring for an internal combustion engine that is lightweight, has excellent high-temperature strength, and has good productivity. can.
４、4,
図面は本発明の一実施例を示し、 第１図は平面 図、 第２図は第１図■−■線断面図である。 ｌ・・・ピストンリング、 ２・・・合い口 特 許 出 願 人 本田技研工業株式会社 The drawing shows an embodiment of the invention, Figure 1 is a plane figure, FIG. 2 is a sectional view taken along the line ■--■ in FIG. 1. l...piston ring, 2... Entrance Special permission Out wish Man Honda motor industry stock company
Claims (3)
くとも一種を５〜３０重量％含有し、また析出物および
晶出物の平均直径が１０μｍ以下であり、さらに３００
℃における引張強さが２０ｋｇ／ｍｍ＾２以上であるア
ルミニウム合金より構成されることを特徴とする内燃機
関用ピストンリング。(1) Contains 5 to 30% by weight of at least one selected from Cr, Fe, Zr, and Ti, and has an average diameter of 10 μm or less for precipitates and crystallized substances, and further has an average diameter of 300 μm or less.
A piston ring for an internal combustion engine, comprising an aluminum alloy having a tensile strength of 20 kg/mm^2 or more at °C.
、Ｍｏ、Ｌａ、Ｎｂ、Ｙ、ＨｆおよびＣｏから選択され
る少なくとも一種を５〜３０重量％含有し、また析出物
および晶出物の平均直径が１０μｍ以下であり、さらに
３００℃における引張強さが２０ｋｇ／ｍｍ＾２以上で
あるアルミニウム合金より構成されることを特徴とする
内燃機関用ピストンリング。(2) Cr, Fe, Zr, Ti, Mn, Ni, V, Ce
, Mo, La, Nb, Y, Hf and Co in an average diameter of 10 μm or less, and has a tensile strength at 300°C. A piston ring for an internal combustion engine, characterized in that it is made of an aluminum alloy having a piston ring of 20 kg/mm^2 or more.
ある、第（１）または第（２）項記載の内燃機関用ピス
トンリング。(3) The piston ring for an internal combustion engine according to item (1) or item (2), wherein the volume percentage of the precipitates and crystallized substances is 60% or less.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3793989A JPH02217666A (en) | 1989-02-17 | 1989-02-17 | Piston ring for internal combustion engine |
| CA002010262A CA2010262C (en) | 1989-02-17 | 1990-02-16 | Heat resistant slide member for internal combustion engine |
| US07/482,299 US5076866A (en) | 1989-02-17 | 1990-02-20 | Heat resistant slide member for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3793989A JPH02217666A (en) | 1989-02-17 | 1989-02-17 | Piston ring for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02217666A true JPH02217666A (en) | 1990-08-30 |
Family
ID=12511526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3793989A Pending JPH02217666A (en) | 1989-02-17 | 1989-02-17 | Piston ring for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02217666A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04107572U (en) * | 1991-02-28 | 1992-09-17 | 帝国ピストンリング株式会社 | Piston for internal combustion engine |
| CN111687419A (en) * | 2020-05-13 | 2020-09-22 | 宁波华源精特金属制品有限公司 | Robot cover plate |
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|---|---|---|---|---|
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| JPS5959855A (en) * | 1982-09-28 | 1984-04-05 | Showa Denko Kk | High strength powder moldings of aluminum alloy having excellent lubricity resistance to heat and wear and its production |
| JPS61140673A (en) * | 1984-12-12 | 1986-06-27 | Nissan Motor Co Ltd | Piston ring |
| JPS6247449A (en) * | 1985-08-26 | 1987-03-02 | Toyo Alum Kk | Heat resistant aluminum alloy for powder metallurgy and its manufacture |
| JPS62238346A (en) * | 1986-04-07 | 1987-10-19 | Sumitomo Light Metal Ind Ltd | Aluminum alloy stock for connecting rod for internal combustion engine |
| JPS62250145A (en) * | 1986-04-23 | 1987-10-31 | Toyo Alum Kk | Heat-resisting aluminum powder metallurgical alloy and its production |
| JPS62250148A (en) * | 1986-04-23 | 1987-10-31 | Alum Funmatsu Yakin Gijutsu Kenkyu Kumiai | Heat-resisting aluminum alloy improved in fatigue strength |
| JPS62267442A (en) * | 1986-05-14 | 1987-11-20 | Mitsubishi Alum Co Ltd | Heat-resisting high-strength aluminum alloy member |
-
1989
- 1989-02-17 JP JP3793989A patent/JPH02217666A/en active Pending
Patent Citations (9)
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|---|---|---|---|---|
| JPS4842212A (en) * | 1971-10-05 | 1973-06-20 | ||
| JPS5385724A (en) * | 1977-01-06 | 1978-07-28 | Nippon Keikinzoku Sougou Kenki | Preparation of high strength ringed body in aluminium alloy |
| JPS5959855A (en) * | 1982-09-28 | 1984-04-05 | Showa Denko Kk | High strength powder moldings of aluminum alloy having excellent lubricity resistance to heat and wear and its production |
| JPS61140673A (en) * | 1984-12-12 | 1986-06-27 | Nissan Motor Co Ltd | Piston ring |
| JPS6247449A (en) * | 1985-08-26 | 1987-03-02 | Toyo Alum Kk | Heat resistant aluminum alloy for powder metallurgy and its manufacture |
| JPS62238346A (en) * | 1986-04-07 | 1987-10-19 | Sumitomo Light Metal Ind Ltd | Aluminum alloy stock for connecting rod for internal combustion engine |
| JPS62250145A (en) * | 1986-04-23 | 1987-10-31 | Toyo Alum Kk | Heat-resisting aluminum powder metallurgical alloy and its production |
| JPS62250148A (en) * | 1986-04-23 | 1987-10-31 | Alum Funmatsu Yakin Gijutsu Kenkyu Kumiai | Heat-resisting aluminum alloy improved in fatigue strength |
| JPS62267442A (en) * | 1986-05-14 | 1987-11-20 | Mitsubishi Alum Co Ltd | Heat-resisting high-strength aluminum alloy member |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04107572U (en) * | 1991-02-28 | 1992-09-17 | 帝国ピストンリング株式会社 | Piston for internal combustion engine |
| CN111687419A (en) * | 2020-05-13 | 2020-09-22 | 宁波华源精特金属制品有限公司 | Robot cover plate |
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