JPH0122921Y2 - - Google Patents
Info
- Publication number
- JPH0122921Y2 JPH0122921Y2 JP1983019565U JP1956583U JPH0122921Y2 JP H0122921 Y2 JPH0122921 Y2 JP H0122921Y2 JP 1983019565 U JP1983019565 U JP 1983019565U JP 1956583 U JP1956583 U JP 1956583U JP H0122921 Y2 JPH0122921 Y2 JP H0122921Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- piston ring
- layer
- ion plating
- plating layer
- 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.)
- Expired
Links
- 238000007733 ion plating Methods 0.000 claims description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Description
【考案の詳細な説明】
本考案は内燃機関用ピストンリングに関するも
のであり、特に高鉛燃料対策のピストンリングに
関するものである。[Detailed Description of the Invention] The present invention relates to a piston ring for internal combustion engines, and particularly to a piston ring for countermeasures against high lead fuel.
今日、公害問題から燃料の多くで無鉛化が進ん
でいるが、高鉛燃料も諸外国を中心にまだ多く使
用されている。高鉛燃料使用の内燃機関において
はHC等の腐蝕雰囲気が強く、その為、通常の
クロムメツキピストンリングの摩耗が著しい。 Today, many fuels are becoming lead-free due to pollution problems, but high-lead fuel is still widely used, especially in other countries. In internal combustion engines that use high lead fuel, there is a strong corrosive atmosphere such as HC, which causes ordinary chrome-plated piston rings to wear significantly.
その為、現在高鉛燃焼対策としてはリング摺動
面に厚クロムメツキが主に実施されているが、そ
の効果はコスト、生産性に比較して十分なもので
はない。これに対してリング摺動面に軟窒化処理
を施したリングもあるが、これは腐蝕雰囲気に強
い為、摩耗は少ないが、耐スカツフイング性低下
を招く場合がある。 Therefore, thick chrome plating is currently being implemented mainly on the ring sliding surface as a countermeasure against high lead combustion, but its effects are not sufficient compared to cost and productivity. On the other hand, there are some rings whose sliding surfaces are subjected to nitrocarburizing treatment, but these are resistant to corrosive atmospheres and therefore suffer less wear, but may lead to a decrease in scuffing resistance.
本考案はこれらの欠点を排除し、長所を生かす
べく開発されたもので以下の如くする事により解
決をみたものである。 The present invention has been developed to eliminate these drawbacks and take advantage of the advantages, and has been solved as follows.
すなわち
(1) 鋳鉄又は鋼製ピストンリングの全表面に軟窒
化層を有し、且つ外周面は前記軟窒化層上に
TiNもしくはCrNのイオンプレーテイング層
を有することを特徴とするピストンリング。 That is, (1) the cast iron or steel piston ring has a soft nitrided layer on the entire surface, and the outer peripheral surface is on the soft nitrided layer.
A piston ring characterized by having an ion plating layer of TiN or CrN.
(2) 前記ピストンリングに於て、内周面にも軟窒
化層の上にTiNもしくはCrNのイオンプレー
テイング層を有することを特徴とするピストン
リングである。第１図が本考案のピストンリン
グであり、リング全表面に軟窒化処理層３を深
さ10μ〜70μ施した後リング外周面４にTiNも
しくはCrNのイオンプレーテイング層２を厚さ
10μ以下施したものである。(2) The piston ring is characterized in that the inner circumferential surface thereof also has an ion plating layer of TiN or CrN on the soft nitrided layer. Figure 1 shows the piston ring of the present invention, in which a soft nitrided layer 3 is applied to the entire surface of the ring to a depth of 10 to 70 μm, and then an ion plating layer 2 of TiN or CrN is applied to the outer peripheral surface 4 of the ring to a thickness of 10 μm to 70 μm.
The thickness is less than 10μ.
第２図は内周面にも同様な厚さの処理を施した
ピストンリングである。このように内周面にも
TiNもしくはCrNのイオンプレーテイング層を
施すのはピストンリングの内、特に組合せ油掻ぎ
ピストンリングのサイドレールにあつては、内周
面もスペーサーエキスパンダの突起と摺接するた
めである。外周面及び内周面に施した比較的薄い
イオンプレーテイング層は高鉛燃料下の腐蝕に比
較的強く、また摩耗も少ないものであるが、たと
え摩耗が進んでもリング摺動面になじみがつくの
で、スカツフイング防止効果がついた後に腐蝕に
強い軟窒化層があらわれることになる。 FIG. 2 shows a piston ring whose inner peripheral surface is also treated to have a similar thickness. In this way, also on the inner peripheral surface.
The reason why an ion plating layer of TiN or CrN is applied is that the inner peripheral surface of the piston ring, especially the side rail of the combination oil-scraped piston ring, also comes into sliding contact with the protrusion of the spacer expander. The relatively thin ion plating layer applied to the outer and inner circumferential surfaces is relatively resistant to corrosion under high lead fuel and has little wear, but even if wear progresses, it will still conform to the ring sliding surface. Therefore, after the scuffing prevention effect is achieved, a soft nitride layer that is resistant to corrosion appears.
ピストンリングの全面に施された軟窒化層はリ
ング上下面におけるピストンリング溝との間のた
たかれ摩耗を防止する。 The nitrocarburized layer applied to the entire surface of the piston ring prevents wear due to knocking between the ring and the piston ring groove on the upper and lower surfaces of the ring.
また、イオンプレーテイング層の剥離防止のた
めに、イオンプレーテイング層そのものを厚くす
ればコスト高となり、また、その下の母材が軟ら
かいとイオンプレーテイング層は剥離しやすくな
るので、母材を硬いものにしてイオンプレーテイ
ング層の剥離を防止する効果も軟窒化層は有す
る。 In addition, in order to prevent the ion plating layer from peeling off, making the ion plating layer itself thicker will increase the cost.Also, if the base material underneath is soft, the ion plating layer will easily peel off, so the base material The soft nitrided layer also has the effect of making it hard and preventing the ion plating layer from peeling off.
以上のべた如く鋳鉄又は鋼又はその合金で作ら
れたピストンリングの全表面に軟窒化処理層３を
深さ10μ〜70μ施した後リング外周面４、もしく
はリング外周面４及びリング内周面５にTiNも
しくはCrNのイオンプレーテイング層２を厚さ
10μ以下施す事により、高鉛燃料によつて生ずる
HC等の腐蝕雰囲気による異常摩耗及びスカツ
フイングを防止し、かつリング上下面におけるピ
ストン溝との間のリングのたたかれ摩耗を防止し
うる対高鉛燃料用ピストンリングを提供する事が
できる。 As described above, after applying a nitrocarburizing layer 3 to a depth of 10 μm to 70 μm on the entire surface of a piston ring made of cast iron, steel, or an alloy thereof, the ring outer circumferential surface 4 or the ring outer circumferential surface 4 and the ring inner circumferential surface 5 are applied. Add a TiN or CrN ion plating layer 2 to the thickness
Caused by high lead fuel by applying less than 10μ
It is possible to provide a piston ring for use with high lead fuel, which can prevent abnormal wear and scuffing due to corrosive atmosphere such as HC, and can also prevent ring wear due to knocking between the ring and the piston groove on the upper and lower surfaces of the ring.
第１図、第２図は本考案ピストンリングの実施
例を示す断面図。
符号の説明、１……ピストンリング、２……
TiNまたはCrNのイオンプレーテイング層、３
……軟窒化処理層、４……リング外周面、５……
リング内周面。
1 and 2 are sectional views showing an embodiment of the piston ring of the present invention. Explanation of symbols, 1... Piston ring, 2...
Ion plating layer of TiN or CrN, 3
... Soft-nitrided layer, 4 ... Ring outer peripheral surface, 5 ...
Inner surface of the ring.
Claims (1)
化層を有し、且つリング外周面の前記軟窒化層
上にTiNもしくはCrNのイオンプレーテイン
グ層を有することを特徴とするピストンリン
グ。 (2) 前記ピストンリングに於て、内周面にも軟窒
化層の上にTiNもしくはCrNのイオンプレー
テイング層を有することを特徴とする前記実用
新案登録請求の範囲第１項記載のピストンリン
グ。[Claims for Utility Model Registration] (1) A cast iron or steel piston ring has a soft nitrided layer on the entire surface, and has an ion plating layer of TiN or CrN on the soft nitrided layer on the outer peripheral surface of the ring. A piston ring featuring (2) The piston ring according to claim 1 of the utility model registration claim, wherein the piston ring also has an ion plating layer of TiN or CrN on the nitrocarburized layer on the inner peripheral surface. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1956583U JPS59126159U (en) | 1983-02-15 | 1983-02-15 | piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1956583U JPS59126159U (en) | 1983-02-15 | 1983-02-15 | piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59126159U JPS59126159U (en) | 1984-08-24 |
| JPH0122921Y2 true JPH0122921Y2 (en) | 1989-07-12 |
Family
ID=30150708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1956583U Granted JPS59126159U (en) | 1983-02-15 | 1983-02-15 | piston ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59126159U (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6113064A (en) * | 1984-06-28 | 1986-01-21 | Teikoku Piston Ring Co Ltd | Piston ring for internal-combustion engine |
| JPH0625597B2 (en) * | 1985-11-20 | 1994-04-06 | 株式会社リケン | piston ring |
| JP2692758B2 (en) * | 1995-01-26 | 1997-12-17 | 株式会社リケン | piston ring |
| JP2732518B2 (en) * | 1995-01-26 | 1998-03-30 | 株式会社リケン | Piston ring and method of manufacturing the same |
| JP4761375B2 (en) * | 2006-04-28 | 2011-08-31 | 日本ピストンリング株式会社 | Piston ring for internal combustion engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5365837A (en) * | 1976-11-26 | 1978-06-12 | Ube Ind Ltd | Preparation of divalent monoalkyl ethers |
| JPS5757868A (en) * | 1980-09-19 | 1982-04-07 | Toyota Motor Corp | Piston ring |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49110163U (en) * | 1973-01-18 | 1974-09-20 |
-
1983
- 1983-02-15 JP JP1956583U patent/JPS59126159U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5365837A (en) * | 1976-11-26 | 1978-06-12 | Ube Ind Ltd | Preparation of divalent monoalkyl ethers |
| JPS5757868A (en) * | 1980-09-19 | 1982-04-07 | Toyota Motor Corp | Piston ring |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59126159U (en) | 1984-08-24 |
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