JPS5845357A - Material for piston ring - Google Patents
Material for piston ringInfo
- Publication number
- JPS5845357A JPS5845357A JP14309581A JP14309581A JPS5845357A JP S5845357 A JPS5845357 A JP S5845357A JP 14309581 A JP14309581 A JP 14309581A JP 14309581 A JP14309581 A JP 14309581A JP S5845357 A JPS5845357 A JP S5845357A
- Authority
- JP
- Japan
- Prior art keywords
- piston ring
- resistance
- ring
- piston
- steel
- 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
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はピストンリング材に関し、％に自動車用エンジ
ンのピストンリング材に関するものである。 ゛
近年内、−機関特に自動車用エンジンはますます高性能
化が要求され、高出力、高速化の傾向が強く、しかも低
燃費に加えて排牟ス対策も備えなければならず、自動車
の場合これら諸問題を解決するための種々検討がなされ
ている。これＫついては軽量化、小型化が必然的に大き
な条件となり、高出力、低燃費が公害問題を解決した上
での自動車用エムレンの主流となっている。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a piston ring material, and particularly to a piston ring material for an automobile engine.゛In recent years, - Engines, especially automobile engines, have been required to have increasingly higher performance, with a strong trend toward higher output and higher speeds.Moreover, in addition to low fuel consumption, they must also have measures against emissions, and in the case of automobiles, Various studies have been made to solve these problems. Regarding this, weight reduction and miniaturization are inevitably important conditions, and high output and low fuel consumption have become the mainstream of automobile emlens after solving the pollution problem.
この中でピストンとシリンダー〇関に設けられるピスト
ンリングの性能にも耐摩耗であって熱へタリ性の優れた
ものが要求され、デーゼル用エンジンには特に耐食性の
優れている事もその要件の１つｋなっている。Among these, the performance of the piston ring installed between the piston and the cylinder is required to be wear resistant and have excellent thermal resistance, and for diesel engines, particularly excellent corrosion resistance is also a requirement. There is one k.
従来このような自動車用エンジンのピストンリングには
炭素鋼の鋳物製リングあるいはシリクローム鋼のオイル
デンバー線等が用いられていたが、鋳物性リングは軸方
向に薄いリングが製造できずまたシリクローム鋼製リン
グは高温強度が小さいため、比較的断面積の大きい重量
の大きいものになり、慣性が大きくフラッタ−？ング現
象を起し易くなる問題点があった。従って排ガス対策に
有利なようにピストンの頂点に近い位置にリングを取り
付けることが出来ず、かつリングの間隔も小さく出来な
いためピストンの重量が重くなり、高出力、高速化が出
来ないという問題も付加されていた。また耐摩耗性や耐
食性およ、び耐熱へタリ性が不足し、それらの性質を補
うために全面メッキ等の表面被覆加工が常識となってい
た。Conventionally, carbon steel casting rings or silicon chrome steel oil dendritic wires have been used for piston rings for automobile engines, but casting rings cannot be made thin in the axial direction, and silicon chrome steel rings cannot be manufactured. Steel rings have low high-temperature strength, so they have a relatively large cross-sectional area and are heavy, resulting in large inertia and flutter. There was a problem in that it was easy to cause the phenomenon of Therefore, it is not possible to install the rings close to the top of the piston, which is advantageous for exhaust gas countermeasures, and the spacing between the rings cannot be made small, which increases the weight of the piston, making it impossible to achieve high output and high speed. It had been added. In addition, it lacks wear resistance, corrosion resistance, and heat resistance, and to compensate for these properties, surface coating treatments such as full-surface plating have become common practice.
本発明はこれらの問題点を解決すべく、従来のピストン
リング材よりも高強度で耐摩耗性、耐食性、耐熱へタリ
性が優れかつフラッタ−リング現象を生じさせることな
く良好な気密性を維持しながら自動車用エンジンの高出
力高速化を達成できる軽証なピストンリングを提供しよ
うとするものである。In order to solve these problems, the present invention has higher strength than conventional piston ring materials, and has excellent wear resistance, corrosion resistance, and heat settling resistance, and maintains good airtightness without causing the fluttering phenomenon. However, the present invention aims to provide a lightweight piston ring that can achieve high output and high speed in automobile engines.
本発明材は合金組成としてム蓋でＣα５〜ｔｏ％。The alloy composition of the material of the present invention is Cα5 to % in terms of the lid.
Ｓｉ １５％以下、Ｍｎ１０％以下、Ｎｉ２．０％以下
、 Ｃｒ１１．０〜１５．０チ＋ Ｍ ｏ Ｏ，４〜ｔ
５％、 ＶｔＳ％以下を含むマルテンサイト系スデンレ
ス鋼であって、焼入れ焼もどし状態で使用される。本発
明材は熱処理状態で未固溶炭化物を含有し、焼もどし軟
化抵抗が大であり、圧力リングのような高温下での強度
が高く、シリンダー壁との気密性の持続に優れている。Si 15% or less, Mn 10% or less, Ni 2.0% or less, Cr11.0-15.0chi + Mo O, 4-t
5%, VtS% or less, and is used in a quenched and tempered state. The material of the present invention contains undissolved carbides in a heat-treated state, has high resistance to tempering softening, has high strength under high temperatures such as in a pressure ring, and has excellent airtightness with the cylinder wall.
そして特に耐摩耗性、耐熱へタリ特性は非常に優れてお
り、従来の鋼製ピストンリングで全表面被膜処理を施し
ていたが、これを簡略化して本発明材ではシリンダーと
の摺動面以外はその必要はない。In addition, it has particularly excellent wear resistance and heat resistance, and conventional steel piston rings were coated on all surfaces, but this has been simplified and the inventive material has been applied to all surfaces except the sliding surface with the cylinder. There's no need for that.
本発明材は土浦のごと〈従来のマルテンサイト層の耐摩
耗性と耐熱へタリ性を高めかつメクキ等の工程の簡略化
性なうものであるのに加えてピストンリングは熱処理後
にリング加工するための冷間、温間の曲げ加工性に優れ
ている事が必要であり、ＮＩを添加してその加工性を良
好忙した点にも特徴を有するピストンリング材である。The inventive material improves the wear resistance and heat settling resistance of the conventional martensitic layer and simplifies processes such as polishing, as described by Tsuchiura. It is necessary that the piston ring material has excellent cold and warm bending workability, and the piston ring material is also characterized by the addition of NI to improve the workability.
以下に本発明材の組成の限定理由を述べる。The reason for limiting the composition of the material of the present invention will be described below.
Ｃは鋼材の基地硬さを高める他Ｃｒ、Ｍｏ、Ｖと結合し
て炭化物を形成し耐隼耗性を付与する、しかしてその目
的のためＫは少なくとも０．５チは必要であり、 ｔ
ｏｅを超えるとリングの加工性が極めて悪るくなるので
その範囲はα５〜ｔｏ優と限定した。In addition to increasing the base hardness of steel, C combines with Cr, Mo, and V to form carbides and imparts wear resistance.For this purpose, K is required to be at least 0.5 t.
If it exceeds oe, the workability of the ring becomes extremely poor, so the range is limited to α5 to excellent.
ＮＩは靭性の向上とピストンリングとして使用したとき
耐酸化性に役立ち、Ｃ量を高くしても冷間および温間に
おける曲げ加工性を良くするが、２チを超えると耐摩耗
性９耐熱へタリ性に悪影響を及ぼすので上限は２−とし
た。NI improves toughness and helps with oxidation resistance when used as a piston ring, and improves cold and warm bending workability even when the C content is high, but when it exceeds 2 inches, the wear resistance decreases to 9 heat resistance. The upper limit was set at 2- because it adversely affected the tarnishing properties.
ＣｒはＣと結合して硬い炭化物を形成し、耐摩耗性−耐
焼付性を高めると共に耐熱へタリ性を向上させる。しか
し１５チを超えると熱処理硬さが低下し、靭性が劣化す
ることからその範囲は１１０〜１４０優と限定した。Cr combines with C to form a hard carbide, which improves wear resistance and seizure resistance as well as heat settability. However, if it exceeds 15 inches, the heat treatment hardness decreases and the toughness deteriorates, so the range was limited to 110-140.
ＭｏはＣｒ同様にＣと結合して炭化物を形成し、高温で
の耐熱へクリ性。耐摩耗性の向上を計る。又耐食性を増
すことによって耐食性を問題とするジーゼルエンジ／の
ピストンリングとしての効果を有するものである。ＭＯ
がこのような作用を発揮１−るためＫは少なくとも０，
４チは必要であり、またｔ５チを超えて含有せしめても
その効果の増大は認められないので（１４〜１５％と限
定した。Like Cr, Mo combines with C to form a carbide, which has heat resistance and properties at high temperatures. Measures to improve wear resistance. Furthermore, by increasing the corrosion resistance, it is effective as a piston ring for diesel engines where corrosion resistance is a problem. M.O.
Since 1- exhibits such an effect, K is at least 0,
4 t is necessary, and even if it is contained in excess of t 5 t, no increase in the effect is observed (it is limited to 14 to 15%).
ＶはＣと結合して炭化物を形成するので耐摩耗性と耐熱
へタリ性を向上させ、又結晶粒微細化の働きを示し、リ
ング加工性を向上させるが１５％以上は必盛ないので上
限なｔｓｌとした。V combines with C to form a carbide, which improves wear resistance and heat settling resistance, and also works to refine grains, improving ring processability, but it is not necessary to have more than 15%, so there is an upper limit. It was set as tsl.
８ｉは通常脱酸剤として添加す・るが耐熱へタリ性を向
上させる作用を有する。しかし１５ｑｂを超えると曲げ
加工性を悪くするのでその上限なｔｓｌと限定した。8i is usually added as a deoxidizing agent, but it also has the effect of improving heat resistance. However, if it exceeds 15 qb, the bending workability deteriorates, so it was limited to the upper limit of tsl.
鳩も通常脱酸剤として用いるが曲げ加工性な改善する作
用を有する。しかし１０％以上は必要を１なく、上限の
含有量をｔｏｑｂに限定した。Dove is also commonly used as a deoxidizing agent, but it also has the effect of improving bending workability. However, 10% or more is not necessary, and the upper limit content is limited to toqb.
つぎに本発明材の効果を実施例により説明する。Next, the effects of the material of the present invention will be explained using examples.
第１表は本発明材と従来材の化学組成である。Table 1 shows the chemical compositions of the inventive material and the conventional material.
篤 １ 表
即ちＡ１〜Ａ？が本発明材であ１、ム１０は舖造材、Ａ
１１はシリクロニム鋼材である。Atsushi 1 table ie A1~A? is the invention material 1, Mu 10 is the artificial material, A
11 is a silicone steel material.
次に第２表において第１表の組成を示す鋼材なそれぞれ
ピストンリングに加工してリング製品としたときの硬さ
、耐摩耗性、使用温［（５００℃）での抗張力および耐
熱へタリ性を測定してまとめた。但し耐熱へタリ性は５
１１ｗＬ１′のとき所定の処理をして測定した。詳細な
測定方法は後述する。Table 2 shows the hardness, abrasion resistance, operating temperature (tensile strength at (500°C) and heat resistance were measured and summarized. However, the heat resistance is 5.
At 11wL1', a predetermined treatment was performed and the measurement was performed. The detailed measurement method will be described later.
第２表 焼戻しく２回）を行った。Table 2 Tempering was performed twice).
第２！ｉ１の本発明材であるＡ１〜Ａ９は電気炉で溶製
したのち熱間塑性かごを行なって５５■ｆのコイルとし
、温間、冷間塑性加工と歪取焼鈍を適当に組合わせて１
５４’″Ｘ五３５１のリング材に加工し、その後焼入れ
焼戻しを行なって形状を拘束しながらピストンリング製
品とした。又従来材の４１０は鋳造したリングを作り、
ＪＩＩｉｌｌはコイル状態でオイルテンパーして熱処理
し、曲げ矯正しリング製品に仕上げた。測定の方法とし
ては、耐熱へタリ性については前述したごとく−で長さ
１５０″のものをそれぞれ熱処理して第２表に示す硬さ
としたのち、常温状態で曲率半径２５”ＲＫ曲げるに必
要な荷重と、曲げた状態で５００ ＸＩ 加熱後直伸
状ｕＫ戻し再び常温状態で前回同様２５■Ｒの曲率半径
に曲げたときの荷重との間の減少度合を示したものであ
る。Second! A1 to A9, which are the inventive materials of i1, are melted in an electric furnace and then subjected to a hot plastic cage to form a 55 f coil, which is then subjected to an appropriate combination of warm and cold plastic working and strain relief annealing.
It was processed into a ring material of 54''' x 5351, and then quenched and tempered to restrain the shape and made into a piston ring product.Also, the conventional material 410 was made into a cast ring.
JIIIill is oil-tempered in a coiled state, heat treated, bent and straightened to create a ring product. As for the heat settling resistance, as mentioned above, after heat-treating the 150" long pieces to the hardness shown in Table 2, This figure shows the degree of decrease between the load and the load when the specimen is heated to 500 XI in the bent state, returned to a straight UK state, and then bent again to a radius of curvature of 25 μR at room temperature as before.
又耐摩耗性は大越式迅速摩耗試験機による比摩耗量であ
りて、相手材はＪＩＳ 、 ＳＣＭ２ を焼鈍材、摩擦
距離４００”最終荷重６８に４、摩耗種度ｔ ５４ ＠
／ｓｅｃである。In addition, wear resistance is the specific wear amount measured by an Okoshi type rapid wear tester, and the mating material is JIS, SCM2 annealed material, friction distance 400'', final load 68 to 4, wear degree t 54 @
/sec.
第２表によって明らかなごとく本発明材Ａ１〜Ａ９にお
℃、・て従来鋼材より耐阜耗、高温強度、耐熱へタリ性
いずれも優れていることがわかる。As is clear from Table 2, the materials A1 to A9 of the present invention are superior to conventional steel materials in terms of wear resistance, high-temperature strength, and heat fatigue resistance at .degree.
次に第３表は従来材と本発明材の耐食性の比較を示す。Next, Table 3 shows a comparison of the corrosion resistance of the conventional material and the material of the present invention.
エンジンルームにおける排気は高温下にあり、％にピス
トンリングはエンジン燃焼室内における高温酸化ガスの
影響をうけるため耐食性が要求される。従ってこれまで
のピストンリング材では耐食、耐球粍をかねてＣｒメッ
キが施されるのが通例であった。本発明材は第３表に示
すごとき排気ガスに含まれる硫酸イオンに対しての耐食
性が抜群であり摺動面以外のメッキは必要ないことを示
すものである。The exhaust gas in the engine room is at a high temperature, and piston rings are required to have corrosion resistance because they are affected by the high temperature oxidizing gas in the engine combustion chamber. Therefore, conventional piston ring materials have typically been coated with Cr plating to provide corrosion and ball resistance. The materials of the present invention have excellent corrosion resistance against sulfate ions contained in exhaust gas as shown in Table 3, indicating that plating on surfaces other than the sliding surfaces is not necessary.
第 ３ 表
以上説明したごとく本発明材を使用することによって自
動車のピストンリングの性能が向上すると共に、ピスト
ンリン・グの小型化を可能とし、且つ製造上ピストンリ
ングの工程を少なくでき、引いてはエンジンの高出力と
高速化が計られる効果を有するものである。Table 3 As explained above, by using the material of the present invention, the performance of piston rings for automobiles can be improved, the piston rings can be made smaller, and the number of manufacturing steps for piston rings can be reduced. This has the effect of increasing the engine output and speed.
Claims (1)
ｎｔＯ−以下、 Ｎ１ｚｌ以下、 Ｃｒ１ｔＯ〜ＩＡＯ
％、ＭＯα４〜ｔｓ優、ｖｔｓ−以下を含有し残部Ｆｅ
および不純物よりなりピストンリングの使用温゛度にお
いて耐摩耗、耐食および耐熱ヘタ■り性に優れたピスト
ンリング材。Heavy and C (L5~tots, st t'4 or less, M
ntO- or less, N1zl or less, Cr1tO~IAO
%, MOα4~ts excellent, vts- or less, balance Fe
A piston ring material with excellent wear resistance, corrosion resistance, and resistance to heat fading at the operating temperatures of piston rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14309581A JPS5845357A (en) | 1981-09-10 | 1981-09-10 | Material for piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14309581A JPS5845357A (en) | 1981-09-10 | 1981-09-10 | Material for piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5845357A true JPS5845357A (en) | 1983-03-16 |
| JPS6121302B2 JPS6121302B2 (en) | 1986-05-26 |
Family
ID=15330789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14309581A Granted JPS5845357A (en) | 1981-09-10 | 1981-09-10 | Material for piston ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5845357A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60155647A (en) * | 1984-01-24 | 1985-08-15 | Riken Corp | Piston ring |
| US4948556A (en) * | 1988-08-10 | 1990-08-14 | Hitachi Metals, Ltd. | Piston ring material and piston ring |
| US4985092A (en) * | 1987-06-11 | 1991-01-15 | Aichi Steel Works, Limited | Steel having good wear resistance |
| WO2011148934A1 (en) * | 2010-05-25 | 2011-12-01 | 株式会社リケン | Pressure ring and method for producing the same |
| WO2012176834A1 (en) * | 2011-06-22 | 2012-12-27 | 株式会社リケン | Pressure ring and fabrication method therefor |
| WO2014054130A1 (en) * | 2012-10-03 | 2014-04-10 | トクセン工業株式会社 | Wire for piston rings |
| JP2015110841A (en) * | 2014-12-25 | 2015-06-18 | 株式会社リケン | Wire material for pressure ring and manufacturing method of the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55110760A (en) * | 1979-02-20 | 1980-08-26 | Fuji Valve Kk | Abrasion resistant, heat resistant steel |
-
1981
- 1981-09-10 JP JP14309581A patent/JPS5845357A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55110760A (en) * | 1979-02-20 | 1980-08-26 | Fuji Valve Kk | Abrasion resistant, heat resistant steel |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60155647A (en) * | 1984-01-24 | 1985-08-15 | Riken Corp | Piston ring |
| US4985092A (en) * | 1987-06-11 | 1991-01-15 | Aichi Steel Works, Limited | Steel having good wear resistance |
| US4948556A (en) * | 1988-08-10 | 1990-08-14 | Hitachi Metals, Ltd. | Piston ring material and piston ring |
| WO2011148934A1 (en) * | 2010-05-25 | 2011-12-01 | 株式会社リケン | Pressure ring and method for producing the same |
| JP2011247310A (en) * | 2010-05-25 | 2011-12-08 | Riken Corp | Pressure ring and method of manufacturing the same |
| US9617952B2 (en) | 2010-05-25 | 2017-04-11 | Kabushiki Kaisha Riken | Compression ring and its production method |
| JP2013007404A (en) * | 2011-06-22 | 2013-01-10 | Riken Corp | Pressure ring and fabrication method therefor |
| CN103620275A (en) * | 2011-06-22 | 2014-03-05 | 株式会社理研 | Pressure ring and fabrication method therefor |
| US9599223B2 (en) | 2011-06-22 | 2017-03-21 | Kabushiki Kaisha Riken | Compression ring and its production method |
| WO2012176834A1 (en) * | 2011-06-22 | 2012-12-27 | 株式会社リケン | Pressure ring and fabrication method therefor |
| WO2014054130A1 (en) * | 2012-10-03 | 2014-04-10 | トクセン工業株式会社 | Wire for piston rings |
| JPWO2014054130A1 (en) * | 2012-10-03 | 2016-08-25 | トクセン工業株式会社 | Piston ring wire |
| JP2015110841A (en) * | 2014-12-25 | 2015-06-18 | 株式会社リケン | Wire material for pressure ring and manufacturing method of the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6121302B2 (en) | 1986-05-26 |
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