JPS63317650A - Piston ring made of steel - Google Patents
Piston ring made of steelInfo
- Publication number
- JPS63317650A JPS63317650A JP15206287A JP15206287A JPS63317650A JP S63317650 A JPS63317650 A JP S63317650A JP 15206287 A JP15206287 A JP 15206287A JP 15206287 A JP15206287 A JP 15206287A JP S63317650 A JPS63317650 A JP S63317650A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- piston ring
- resistance
- wear resistance
- seizure resistance
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 24
- 239000010959 steel Substances 0.000 title claims abstract description 24
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract 6
- 229910052720 vanadium Inorganic materials 0.000 claims abstract 6
- 229910052748 manganese Inorganic materials 0.000 abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 2
- 239000000463 material Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、エンジン等において使用されるスチール製ピ
ストンリングに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a steel piston ring used in engines and the like.
近年、自動車等のエンジンの高性能化に伴って、エンジ
ン自身の軽量化が押し進められており、エンジンの構成
部品の一つであるピストンリングにも当然要求されてい
る。In recent years, as the performance of automobile engines has improved, the weight of the engines themselves has been reduced, and piston rings, which are one of the engine components, are also required to be made lighter.
ピストンリングの軽量化を図る手段として、小寸法化が
あげられるが、この場合、従来の鋳鉄製ピストンリング
では、強度的に不十分であるため。One way to reduce the weight of piston rings is to reduce their dimensions, but in this case, conventional cast iron piston rings are insufficient in terms of strength.
スチール製ピストンリングが種々提案され、Ｎ化処理を
施し使用されている。Various steel piston rings have been proposed and are used after being treated with nitrogen.
しかし、従来提案されているスチール製ピストンリング
のうち、最も良好な耐摩耗性、耐焼付性を示すと考えら
れる５ＵＳ４４０Ｂ（特公昭６１〜２２１３１号）クラ
スのものであっても、ピストンリングの小寸法化により
シリンダーとの接触面圧力が上昇し、一層耐摩耗性、耐
焼付性の向上が要求されてきている。However, among the steel piston rings proposed so far, even those of the 5US440B (Special Publication No. 61-22131) class, which are considered to have the best wear resistance and seizure resistance, have small piston rings. As the dimensions increase, the contact pressure with the cylinder increases, and there is a demand for further improvements in wear resistance and seizure resistance.
本発明は、上記従来スチール製ピストンリングの欠点を
改善し、耐摩耗性、耐焼付性の良好なスチール製ピスト
ンリングを提供することを目的とするものである。An object of the present invention is to improve the above-mentioned drawbacks of the conventional steel piston rings and to provide a steel piston ring with good wear resistance and seizure resistance.
本発明は１重量％でＣ０．６５〜１．６％、Ｓｉ≦１．
２％。The present invention is 1% by weight, C0.65-1.6%, Si≦1.
2%.
Ｍｎ≦１．０％、Ｃｒ３〜１０％％１／２Ｗ＋Ｍｏ １
〜１５％、■０．５〜５％、残部Ｆｅおよび不純物より
なり、耐焼付性、耐摩耗性の優れたことを特徴とするス
チール製ピストンリング、または上記合金に、Ｇｏ １
〜１５％、 Ｎｉ ０．５〜錦を一種または二種を添加
したスチール製ピストンリングである。Mn≦1.0%, Cr3~10%%1/2W+Mo1
Go 1
-15% Ni, 0.5 to 15% Ni - Steel piston ring with one or two types of brocade added.
次に本発明の各成分の限定理由を述べる。Next, the reasons for limiting each component of the present invention will be described.
Ｃは高硬度を与え、耐熱へタリ性を増すが、その含有量
が０．６５％未満では、効果不十分であり、１．６％を
越えると鍛造性ならびに靭性を損なうのでＣの含有量は
、０．６５−１．６％とした。C gives high hardness and increases heat resistance, but if the content is less than 0.65%, the effect is insufficient, and if it exceeds 1.6%, forgeability and toughness are impaired. was set at 0.65-1.6%.
ＳｉおよびＭｎは脱酸剤として通常含有する範囲、すな
わちＳｉ≦１．２％、Ｍｎ≦１．０％を範囲とした。Si and Mn were set in the range normally contained as a deoxidizing agent, that is, Si≦1.2% and Mn≦1.0%.
Ｃｒは、焼入性、また硬質ｃ’ ｄｅ生成による耐摩耗
性などを与えるが、３％未満ではこれらの性質を減じ、
また１０％を越えるとＣ量との関係から巨大な共晶Ｃｒ
ｃ’ ｄｅが増加し、機械的性質、特に疲労強度を減じ
るため、Ｃｒは３〜１０％の範囲とした。Cr provides hardenability and wear resistance due to the formation of hard c'de, but if it is less than 3%, these properties are reduced.
Moreover, if it exceeds 10%, a huge eutectic Cr occurs due to the relationship with the C content.
Cr ranged from 3 to 10% since it increases c'de and reduces mechanical properties, especially fatigue strength.
Ｗ、Ｍｏは、耐摩耗性、耐焼付性を付与する目的で添加
されるが、１／２Ｗ ＋ Ｍｏ １％未満では、上記の
効果が不十分であり、１／２Ｗ＋Ｍｏが１５％を越える
と却って熱間加工性が悪く、また材料としての靭性を損
なうため、Ｗ、Ｍｏの含有量はｌ／２Ｗ 十Ｍｏ１〜１
５％の範囲とした。W and Mo are added for the purpose of imparting wear resistance and seizure resistance, but if 1/2W + Mo is less than 1%, the above effects are insufficient, and if 1/2W + Mo exceeds 15%, On the contrary, the hot workability is poor and the toughness as a material is impaired, so the content of W and Mo is 1/2W 10Mo1~1
The range was set at 5%.
■は、硬質炭化物（ＶＣ）を形成し、耐摩耗性を著しく
増大する元素であり、Ｃ量との０．５％以上必要であり
、■が増旅するほど耐摩耗性は増加するが、■が５％を
越えると、ＶＣの体積率が増加し、伸び、靭性、特に疲
労強度を害するため、０．５〜５％の範囲とした。■ is an element that forms hard carbides (VC) and significantly increases wear resistance, and must be present in an amount of 0.5% or more compared to the amount of C. The wear resistance increases as ■ increases, but If (2) exceeds 5%, the volume fraction of VC increases, impairing elongation, toughness, and especially fatigue strength, so it was set in the range of 0.5 to 5%.
Ｃｏは基質に固溶し、耐熱性および耐焼付性を向上させ
るが、Ｃｏ１％未満では上記の効果が不十分であるａＣ
Ｏが増加するほど前、記特性は向上するが、ＣＯは高価
な上に、Ｇｏが１５％を越えると靭性を損ない、特性の
向上も大きくないので、１〜１５％に限定した。Co dissolves in the substrate and improves heat resistance and seizure resistance, but if Co is less than 1%, the above effects are insufficient.
As the O content increases, the above properties improve, but CO is expensive, and if Go exceeds 15%, the toughness is impaired and the improvement in properties is not large, so the content is limited to 1 to 15%.
Ｎｉは、基質に固溶して、延性を増加させ、カーリング
加工性が向上し、また靭性の向上により。Ni solidly dissolves in the matrix to increase ductility, improve curling processability, and improve toughness.
ピストンリング使用時の疲労強度を上げるために０．５
％以上必要であり、また前述の成分範囲では、Ｎｉが錦
を越えても機械的性質の特に大きな向上がないため、０
．５〜５％を範囲とした。0.5 to increase fatigue strength when using piston rings
% or more, and in the above-mentioned component range, there is no particularly large improvement in mechanical properties even if Ni exceeds Nishiki.
．． The range was 5-5%.
次に本発明の実施例を従来のスチール製ピストンリング
と比較して示す。Next, an example of the present invention will be shown in comparison with a conventional steel piston ring.
第１表は、化学成分を示すもので、表中供試材Ｎｏ、ｌ
Ｊは本発明鋼、 Ｎｏ、９．１０は現在のスチール製ピ
ストンリングとして最も優れた特性を持ち。Table 1 shows the chemical composition of the sample materials No.
J is the steel of the present invention, and No. 9.10 has the best characteristics of current steel piston rings.
窒化処理を施して使用されている。５ＵＳ４４０Ｂクラ
スの合金鋼および１３Ｃｒステンレス系の合金鋼であり
、この供試材Ｎｏ、１〜１０に各々窒化処理を施して耐
焼付、耐摩耗性テストを実施した。It is used after being nitrided. These were 5US440B class alloy steel and 13Cr stainless steel alloy steel, and the test materials Nos. 1 to 10 were each subjected to nitriding treatment, and seizure resistance and wear resistance tests were conducted.
Ｎ００７．８については、共に同一溶解の供試材である
が、カーリング性を向上させるために、Ｎ０１７は焼鈍
ままとし、調質を行なったＮ０１８と比較した。Regarding No. 007.8, both were the same melted test materials, but in order to improve curling properties, No. 17 was left annealed and compared with No. 18 which was tempered.
第３図は、耐焼付性を評価するテスト法の原理図である
０本テスト法は１回転駆動している円盤状の相手材２に
供試材１を５ｍｍ偏心させた位置に押し付け、その押し
付ける荷重を暫増させ、やがて、供試材１と相手材２と
の間に焼付が発生した焼付発生荷重をもって耐焼付性を
評価するものである。なお、テスト条件は以下の通りで
ある。Figure 3 is a diagram showing the principle of the test method for evaluating seizure resistance. The pressing load is increased temporarily, and the seizure resistance is evaluated based on the seizure-generating load at which seizure occurs between the sample material 1 and the mating material 2. Note that the test conditions are as follows.
相手材 ： Ｆｅ１２ （ＨＢ ２１１）供試材 ：
φ５
回転数ｗ ： １０１０００（ｒｐ
偏心量ｈ：５（ｍｎ）
第１図に示す耐焼付テスト結果で明らかな如く、本発明
鋼は、いずれも現用鋼に対して、格段に優れているもの
である。Mating material: Fe12 (HB 211) Test material:
φ5 Rotational speed w: 101000 (rp Eccentricity h: 5 (mn) As is clear from the seizure resistance test results shown in Figure 1, the steels of the present invention are significantly superior to the current steels. be.
また、供試材Ｎｏ、４とＮ ｏ 、 ５の比較では、Ｃ
Ｏ添加による耐焼付性向上の効果が顕著に表われている
。Ｎｏ、７とＮｏ、８とでは特に差は認められない。In addition, in comparing sample materials No. 4 and No. 5, C
The effect of improving the seizure resistance by adding O is remarkable. No particular difference is observed between No. 7 and No. 8.
第４図は、耐摩耗性を評価する大館式摩耗テスト法の原
理図である゛。Figure 4 is a diagram showing the principle of the Odate wear test method for evaluating wear resistance.
本テスト法は、供試材３に回転駆動している円盤状の相
手材４の外周面６を押し付け、供試材の比摩耗址（単位
長さ、単位面積当りの摩耗体￥１）をもって耐摩耗性を
評価するものである。なお、テスト条件は以下の通りで
ある。In this test method, the outer circumferential surface 6 of a rotating disc-shaped mating material 4 is pressed against the specimen 3, and the specific wear mass (wearing body ¥1 per unit length and unit area) of the specimen is measured. This is to evaluate wear resistance. Note that the test conditions are as follows.
相手材 ： ＳＣＭ４１５ （ＨＲＢ ７？）最終荷重
： ６．５ｋｇｆ
摩耗速度： ２．３ｍ／ｓｅｃ
摩耗距離： ４００ｍ
第２図に示す大館式テスト結果で明らかな如く、本発明
鋼は、いずれも現用鋼に対して格段に優れているもので
ある。Compatible material: SCM415 (HRB 7?) Final load: 6.5 kgf Wear rate: 2.3 m/sec Wear distance: 400 m As is clear from the Odate test results shown in Figure 2, the steel of the present invention is not the same as the currently used steel. It is far superior to.
また、供試材Ｎ００１〜８のＶ量と比摩耗量がよく対応
しており、Ｖ量が増えるほど耐摩耗性が良くなることが
わかる。これは、硬質炭化物ＶＣの組織全体に占める割
合に対応しているものと判断される。Further, it can be seen that the amount of V and the specific wear amount of sample materials Nos. 001 to 8 correspond well, and the wear resistance becomes better as the amount of V increases. This is considered to correspond to the proportion of hard carbide VC in the entire structure.
Ｎ ｏ 、 ７と８では特に差が認められない、これは
、基地の硬さよりも、硬質炭化物量が耐摩耗性に効果が
あるためと判断される。No particular difference was observed between No. 7 and No. 8. This is thought to be because the amount of hard carbide is more effective on wear resistance than the hardness of the matrix.
Ｎｏ、７は耐焼付テスト、耐摩耗テスト結果でも共に良
好な結果を示し、本発明鋼が焼鈍ままでも、ピストンリ
ングとして有効であることが理解できる。No. 7 showed good results in both the seizure resistance test and the wear resistance test, and it can be seen that the steel of the present invention is effective as a piston ring even as annealed.
本発明は、耐摩耗性、耐焼付性を著しく向上させたスチ
ール製ピストンリングを提供するものであり、特に、ピ
ストンリングのエンジンにおける重要度から本発明のエ
ンジンの高性能化に果たす役割は大きく、産業上、非常
に有効かつ画期的なものである。The present invention provides a steel piston ring with significantly improved wear resistance and seizure resistance, and in particular, due to the importance of piston rings in engines, the role played by the present invention in improving the performance of the engine is significant. , which is extremely effective and innovative in industry.
【図面の簡単な説明】
第１図は、本発明の耐焼付性評価試験結果、第２図は、
本発明の耐摩耗性評価試験結果、第３図は、耐焼付性を
評価する試験法の原理図、第４図は、耐摩耗性を評価す
る大戦式摩耗試験法の〃ｘ理図である。
１．３：供試材
２．４：相手材
５：摩耗部
６：相手材外周面
出願人 日立金属株式会社 、１．′−＼１１、
〈、−
第１図
第２図
第３図
第４図
ど。[Brief explanation of the drawings] Figure 1 shows the seizure resistance evaluation test results of the present invention, and Figure 2 shows the results of the seizure resistance evaluation test of the present invention.
The abrasion resistance evaluation test results of the present invention, Fig. 3 is a principle diagram of the test method for evaluating seizure resistance, and Fig. 4 is a diagram of the principle of the large-scale abrasion test method for evaluating abrasion resistance. . 1.3: Test material 2.4: Compatible material 5: Worn part 6: Compatible material outer circumferential surface Applicant: Hitachi Metals, Ltd., 1. '-\11, 〈,- Figure 1 Figure 2 Figure 3 Figure 4 etc.
Claims (1)
Ｍｎ≦１．０％、Ｃｒ３〜１０％、１／２Ｗ＋Ｍｏ１〜
１５％、Ｖ０．５〜５％、残部Ｆｅおよび不純物よりな
り、耐焼付性、耐摩耗性の優れたことを特徴とするスチ
ール製ピストンリング。 ２ 重量％でＣ０．６５〜１．６％、Ｓｉ≦１．２％、
Ｍｎ≦１．０％、Ｃｒ３〜１０％、１／２Ｗ＋Ｍｏ１〜
１５％、Ｖ０．５〜５％、Ｃｏ１〜１５％、残部Ｆｅお
よび不純物よりなり、耐焼付性、耐摩耗性の優れたこと
を特徴とするスチール製ピストンリング。 ３ 重量％でＣ０．６５〜１．６％、Ｓｉ≦１．２％、
Ｍｎ≦１．０％、Ｃｒ３〜１０％、１／２Ｗ＋Ｍｏ１〜
１５％、Ｖ０．５〜５％、Ｎｉ０．５〜５％、残部Ｆｅ
および不純物よりなり、耐焼付性、耐摩耗性の優れたこ
とを特徴とするスチール製ピストンリング。 ４ 重量％でＣ０．６５〜１．６％、Ｓｉ≦１．２％、
Ｍｎ≦１．０％、Ｃｒ３〜１０％、１／２Ｗ＋Ｍｏ１〜
１５％、Ｖ０．５〜５％、Ｃｏ１〜１５％、Ｎｉ０．５
〜５％、残部Ｆｅおよび不純物よりなり、耐焼付性、耐
摩耗性の優れたことを特徴とするスチール製ピストンリ
ング。[Claims] 1% by weight: C0.65-1.6%, Si≦1.2%,
Mn≦1.0%, Cr3~10%, 1/2W+Mo1~
A steel piston ring consisting of 15% V, 0.5 to 5% V, and the balance Fe and impurities, and is characterized by excellent seizure resistance and wear resistance. 2% by weight: C0.65-1.6%, Si≦1.2%,
Mn≦1.0%, Cr3~10%, 1/2W+Mo1~
A steel piston ring consisting of 15% V, 0.5 to 5% V, 1 to 15% Co, and the remainder Fe and impurities, and is characterized by excellent seizure resistance and wear resistance. 3 C0.65-1.6% by weight, Si≦1.2%,
Mn≦1.0%, Cr3~10%, 1/2W+Mo1~
15%, V0.5-5%, Ni 0.5-5%, balance Fe
A steel piston ring made of impurities and characterized by excellent seizure resistance and wear resistance. 4 C0.65-1.6% by weight, Si≦1.2%,
Mn≦1.0%, Cr3~10%, 1/2W+Mo1~
15%, V0.5-5%, Co1-15%, Ni0.5
A steel piston ring consisting of ~5%, the balance being Fe and impurities, and characterized by excellent seizure resistance and wear resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62152062A JP2611990B2 (en) | 1987-06-18 | 1987-06-18 | Steel piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62152062A JP2611990B2 (en) | 1987-06-18 | 1987-06-18 | Steel piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63317650A true JPS63317650A (en) | 1988-12-26 |
| JP2611990B2 JP2611990B2 (en) | 1997-05-21 |
Family
ID=15532223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62152062A Expired - Fee Related JP2611990B2 (en) | 1987-06-18 | 1987-06-18 | Steel piston ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2611990B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5698453A (en) * | 1980-01-08 | 1981-08-07 | Hitachi Metals Ltd | Steel piston ring material |
| JPS57210954A (en) * | 1981-06-22 | 1982-12-24 | Riken Corp | Alloy steel for piston ring |
-
1987
- 1987-06-18 JP JP62152062A patent/JP2611990B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5698453A (en) * | 1980-01-08 | 1981-08-07 | Hitachi Metals Ltd | Steel piston ring material |
| JPS57210954A (en) * | 1981-06-22 | 1982-12-24 | Riken Corp | Alloy steel for piston ring |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2611990B2 (en) | 1997-05-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |