JPH0151899B2 - - Google Patents
Info
- Publication number
- JPH0151899B2 JPH0151899B2 JP4217584A JP4217584A JPH0151899B2 JP H0151899 B2 JPH0151899 B2 JP H0151899B2 JP 4217584 A JP4217584 A JP 4217584A JP 4217584 A JP4217584 A JP 4217584A JP H0151899 B2 JPH0151899 B2 JP H0151899B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- piston ring
- plating
- diffusion layer
- outer peripheral
- 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
- 238000007747 plating Methods 0.000 claims description 14
- 238000009792 diffusion process Methods 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 2
- 238000005121 nitriding Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000007751 thermal spraying Methods 0.000 description 9
- 239000000446 fuel Substances 0.000 description 5
- 150000004767 nitrides Chemical class 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
Description
【発明の詳細な説明】
本発明は内燃機関用ピストンリングに関するも
のであり、特に高鉛燃料使用、又は腐食雰囲気を
もつた内燃機関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 internal combustion engines that use high lead fuel or have a corrosive atmosphere.
近年、公害問題により燃料の無鉛化が進んでい
るが、高鉛燃料も諸外国を中心に未だ広く使用さ
れている。高鉛燃料使用の内燃機関にあつては、
HCl等の腐食雰囲気が強い為、一般に使用されて
いる摺動面のクロムメツキ等の摩耗が著しい。 In recent years, lead-free fuel has been promoted due to pollution problems, but high-lead fuel is still widely used mainly in other countries. For internal combustion engines using high lead fuel,
Due to the strong corrosive atmosphere such as HCl, the chrome plating on the sliding surfaces commonly used is subject to significant wear.
それ故、高鉛燃料対策として摺動面に厚クロム
メツキが実施される等しているが、コスト、生産
性に比して効果は充分なものでは無い。 Therefore, as a countermeasure against high lead fuel, thick chrome plating has been implemented on the sliding surfaces, but the effects are not sufficient in terms of cost and productivity.
これに対して摺動部材に窒化処理を施すものが
開発されているが、これはエンジンによつてはス
カツフイング等の異常摩耗が発生する事がある。 In response to this, a system has been developed in which the sliding member is subjected to nitriding treatment, but this may cause abnormal wear such as scuffing depending on the engine.
本発明はこれらの点を考慮し、欠点を無くし、
長所を生かすべく開発されたものである。 The present invention takes these points into consideration, eliminates the drawbacks,
It was developed to take advantage of its strengths.
即ち、鋳鉄又は鋼製ピストンリングの全表面に
窒化処理を施し、更に外周面は窒化処理層から化
合物層を除去して拡散層を露出させた後、該拡散
層上にメツキ又は溶射を施す事を特徴とするピス
トンリングである。 That is, the entire surface of a cast iron or steel piston ring is nitrided, and the compound layer is removed from the nitrided layer on the outer peripheral surface to expose the diffusion layer, and then plating or thermal spraying is applied on the diffusion layer. This piston ring is characterized by:
以下、本発明を添付図面に沿つて説明する。 The present invention will be described below with reference to the accompanying drawings.
第１図に示す様にピストンリング１の全表面に
窒化層２を設け、更にピストンリング１の外周面
１１の前記窒化層２の上層部である化合物層２１
はメツキ、溶射のつきが悪いので不必要となる為
該化合物層を研摩等によつて除去した後、化合物
層２１の下層部である拡散層２２上にメツキ又は
溶射の層３を設ける。 As shown in FIG. 1, a nitride layer 2 is provided on the entire surface of the piston ring 1, and a compound layer 21, which is the upper layer of the nitride layer 2 on the outer peripheral surface 11 of the piston ring 1, is further provided.
Since plating or thermal spraying has poor adhesion, it is unnecessary, so after removing the compound layer by polishing or the like, a plating or thermal spraying layer 3 is provided on the diffusion layer 22 which is the lower layer of the compound layer 21.
第２図は、外周面１１から窒化層全体を除去し
た後、メツキ又は溶射の層３を設けるものであ
る。 In FIG. 2, after the entire nitrided layer is removed from the outer peripheral surface 11, a plating or thermal spraying layer 3 is provided.
尚、メツキはエンジンとの相性によりクロムメ
ツキ、分散メツキなど、溶射は同じく鉄系、モリ
ブデンなどである。 Depending on the compatibility with the engine, the plating may be chrome plating or dispersion plating, and the thermal spraying may be iron-based or molybdenum.
以上述べた如く、窒化層の上層部である化合物
層を除去した後、その下層部である拡散層上にメ
ツキ又は溶射を施す事により、化合物層の摺動に
よるスカツフイング等の異常摩耗を防止し、又、
拡散層をも除去した後、母材上にメツキ又は溶射
を施す事により硬質層が薄い拡散層をそのまま摺
動させる場合よりも長時間の使用にたえる。又、
上下面の窒化層は、拡散層上にメツキ、溶射を施
す場合及びリング摺動面に直接メツキ、溶射を施
す場合いずれにおいても上下面の叩かれ摩耗を防
止し、かつ相乗効果によつて摺動面の耐摩耗性を
も向上させる。 As mentioned above, after removing the compound layer which is the upper layer of the nitrided layer, by plating or thermal spraying on the diffusion layer which is the lower layer, abnormal wear such as scuffing due to sliding of the compound layer can be prevented. ,or,
After removing the diffusion layer, the base material is plated or thermally sprayed, so that the hard layer can be used for a longer period of time than when the thin diffusion layer is simply slid on. or,
The nitride layer on the upper and lower surfaces prevents the upper and lower surfaces from being hit and worn, and prevents the sliding surface by a synergistic effect when plating or thermal spraying is performed on the diffusion layer or when plating or thermal spraying is directly applied to the ring sliding surface. It also improves the wear resistance of moving surfaces.
第１図は本発明の一実施例を示す断面図であ
り、第２図は本発明の他の実施例を示す断面図で
ある。
符号の説明、１……ピストンリング、１１……
同・外周面、２……窒化層、２１……化合物層、
２２……拡散層、３……メツキ又は溶射層。
FIG. 1 is a sectional view showing one embodiment of the invention, and FIG. 2 is a sectional view showing another embodiment of the invention. Explanation of symbols, 1... Piston ring, 11...
Same outer peripheral surface, 2... nitride layer, 21... compound layer,
22... Diffusion layer, 3... Plating or thermal spraying layer.
Claims (1)
処理を施し、更に外周面は窒化処理層から化合物
層を除去して拡散層を露出させた後、該拡散層上
にメツキ又は溶射を施す事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、外周面より更に
拡散層をも除去して母材を露出させ該母材上にメ
ツキ又は溶射を施す事を特徴とする第１項記載の
ピストンリング。[Claims] 1. The entire surface of a cast iron or steel piston ring is subjected to nitriding treatment, and the compound layer is removed from the nitrided layer on the outer peripheral surface to expose a diffusion layer, and then plating is applied on the diffusion layer. Or a piston ring characterized by being thermally sprayed. 2. The piston ring according to item 1, wherein a diffusion layer is further removed from the outer peripheral surface of the piston ring to expose the base material, and the base material is plated or sprayed.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4217584A JPS60188660A (en) | 1984-03-07 | 1984-03-07 | Piston ring |
| GB08504794A GB2155588B (en) | 1984-03-07 | 1985-02-25 | Corrosion resistant piston ring |
| DE19853506746 DE3506746C2 (en) | 1984-03-07 | 1985-02-26 | Piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4217584A JPS60188660A (en) | 1984-03-07 | 1984-03-07 | Piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60188660A JPS60188660A (en) | 1985-09-26 |
| JPH0151899B2 true JPH0151899B2 (en) | 1989-11-07 |
Family
ID=12628640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4217584A Granted JPS60188660A (en) | 1984-03-07 | 1984-03-07 | Piston ring |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS60188660A (en) |
| DE (1) | DE3506746C2 (en) |
| GB (1) | GB2155588B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8304442A (en) * | 1983-12-27 | 1985-07-16 | Koninkl Philips Electronics Nv | INTEGRATED AND PROGRAMMABLE PROCESSOR FOR WORDS DIGITAL SIGNAL PROCESSING. |
| JPH01307568A (en) * | 1988-06-06 | 1989-12-12 | Nippon Piston Ring Co Ltd | Piston ring |
| JPH064137Y2 (en) * | 1988-11-24 | 1994-02-02 | 株式会社リケン | Oil ring |
| US5292381A (en) * | 1991-07-24 | 1994-03-08 | Nippon Piston Ring Co., Ltd. | Piston ring and process for manufacturing the same |
| JPH05148612A (en) * | 1991-11-25 | 1993-06-15 | Nippon Piston Ring Co Ltd | Manufacture of piston ring |
| EP0841414B2 (en) † | 1996-11-11 | 2005-03-02 | Teikoku Piston Ring Co., LTd. | Composite chromium plating film and sliding member covered thereof |
| DE19720779C1 (en) | 1997-05-17 | 1998-10-01 | Ae Goetze Gmbh | Cast iron piston ring |
| JP3794255B2 (en) | 2000-09-21 | 2006-07-05 | 日産自動車株式会社 | Sliding parts and manufacturing method thereof |
| JP4392485B2 (en) * | 2001-02-27 | 2010-01-06 | 日本ピストンリング株式会社 | piston ring |
| DE102004028487B4 (en) * | 2004-06-11 | 2018-11-15 | Mahle Gmbh | Method for producing wear-resistant flanks for a trapezoidal ring for internal combustion engines |
| DE102005041408A1 (en) | 2005-09-01 | 2007-03-08 | Mahle International Gmbh | Method for producing a piston ring for internal combustion engines and such a piston ring |
| DE102012204156A1 (en) | 2012-03-16 | 2013-09-19 | Federal-Mogul Burscheid Gmbh | Piston ring with chrome solid particle wear protection layer and corrosion resistant flank surface |
| DE102016104454B4 (en) | 2016-03-11 | 2021-05-27 | Federal-Mogul Burscheid Gmbh | Piston ring |
| DE102016104450B4 (en) | 2016-03-11 | 2021-05-27 | Federal-Mogul Burscheid Gmbh | Piston ring |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1719616U (en) * | 1954-05-17 | 1956-03-29 | Goetzewerke | PISTON RING. |
| KR890001030B1 (en) * | 1981-12-16 | 1989-04-20 | Ae Plc | Nitro-carburizing treatment method and metal ring |
-
1984
- 1984-03-07 JP JP4217584A patent/JPS60188660A/en active Granted
-
1985
- 1985-02-25 GB GB08504794A patent/GB2155588B/en not_active Expired
- 1985-02-26 DE DE19853506746 patent/DE3506746C2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2155588A (en) | 1985-09-25 |
| GB8504794D0 (en) | 1985-03-27 |
| GB2155588B (en) | 1987-08-05 |
| DE3506746C2 (en) | 1986-09-11 |
| JPS60188660A (en) | 1985-09-26 |
| DE3506746A1 (en) | 1985-09-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |