JPH0717883Y2 - piston ring - Google Patents
piston ringInfo
- Publication number
- JPH0717883Y2 JPH0717883Y2 JP1989067300U JP6730089U JPH0717883Y2 JP H0717883 Y2 JPH0717883 Y2 JP H0717883Y2 JP 1989067300 U JP1989067300 U JP 1989067300U JP 6730089 U JP6730089 U JP 6730089U JP H0717883 Y2 JPH0717883 Y2 JP H0717883Y2
- Authority
- JP
- Japan
- Prior art keywords
- piston ring
- wear
- layer
- piston
- thickness
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 34
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 15
- 239000010936 titanium Substances 0.000 claims description 15
- 229910052719 titanium Inorganic materials 0.000 claims description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 39
- 229910001018 Cast iron Inorganic materials 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910002804 graphite Inorganic materials 0.000 description 10
- 239000010439 graphite Substances 0.000 description 10
- 238000007747 plating Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910001141 Ductile iron Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、エンジン、往復動圧縮機などに適用されるピ
ストンリングに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a piston ring applied to an engine, a reciprocating compressor or the like.
（従来の技術） 前記ピストンリングの従来例を第５図ないし第８図によ
って説明すると、エンジンや往復動圧縮機では、第５図
に示すようにピストン（05）の外周に設けた複数のリン
グ溝（06）にピストンリング（01）が装着され、該ピス
トンリング（01）は、シリンダ（07）の摺動面に摺接し
て、往復運動するピストン（05）とシリンダ（07）間の
隙間（ｃ）からシリンダ内の高圧流体（気体または液
体）が洩れるのを防止し、シリンダ（07）の摺動面にピ
ストンリング（01）が接触して摺動するため、潤滑油を
供給してピストンリング（01）、シリンダの摺動面の摩
耗量を低減している。(Prior Art) A conventional example of the piston ring will be described with reference to FIGS. 5 to 8. In an engine and a reciprocating compressor, as shown in FIG. A piston ring (01) is mounted in the groove (06), and the piston ring (01) is in sliding contact with the sliding surface of the cylinder (07) to reciprocate a gap between the piston (05) and the cylinder (07). Since high pressure fluid (gas or liquid) in the cylinder is prevented from leaking from (c) and the piston ring (01) slides in contact with the sliding surface of the cylinder (07), supply lubricating oil. The amount of wear on the sliding surfaces of the piston ring (01) and cylinder is reduced.
前記ピストンリング（01）の従来例は、通常、第６図に
示すように潤滑性、耐摩耗性の優れた片状黒鉛鋳鉄の単
一材で形成されており、また、第６図に示すように片状
黒鉛鋳鉄に比べ摩耗量が約半分であるクロームメツキ
（Crメツキ）、セラミツク溶射を耐耗材として施す場合
もあり、第７図に示すように片状黒鉛鋳鉄などの母材
（011）（強度が要求される場合は球状黒鉛鋳鉄）の外
周摺動部にクロームメツキ層（02）を施し、または、第
８図に示すように片状黒鉛鋳鉄などの母材（012）（片
状黒鉛鋳鉄など）の外周摺動部にセラミツク溶射層（0
3）を施している。The conventional example of the piston ring (01) is usually made of a single piece of flake graphite cast iron excellent in lubricity and wear resistance as shown in FIG. 6, and also shown in FIG. As shown in Fig. 7, the base material such as flake graphite cast iron (C r- mesh), which has about half the wear amount of flake graphite cast iron, and ceramic spraying may be used as the wear-resistant material. 011) (A spheroidal graphite cast iron when strength is required) is provided with a chrome plating layer (02) on the outer peripheral sliding portion, or as shown in FIG. 8, a base material (012) (such as flake graphite cast iron) Ceramic sprayed layer (0
3) has been applied.
（考案が解決しようとする課題） 従来の前記ピストンリングにおいて、片状黒鉛鋳鉄の単
一材などからなるピストンリングは、耐摩耗性、耐久性
に劣り、母材の外周摺動部にクロームメツキまたはセラ
ミツク溶射の単層の耐摩耗材層を施しても、それらの単
層厚さの限界は0.4〜0.5mmであって、該耐摩耗材層が摩
耗してなくなると母材が摩耗して摩耗速度が上昇し、耐
摩耗性を高めるのに自ら限界があり、ピストンリング交
換のためにはシリンダーカバー解放、ピストン抜きが必
要であって多くの手数、時間を要しコスト高になってい
るなどの問題点がある。(Problems to be solved by the invention) In the conventional piston ring, a piston ring made of a single material such as flake graphite cast iron is inferior in wear resistance and durability, and has a chrome plating on the outer peripheral sliding portion of the base material. Or, even if a ceramic wear single-layer wear-resistant material layer is applied, the limit of the thickness of the single layer is 0.4 to 0.5 mm, and if the wear-resistant material layer is not worn away, the base material wears and wear rate However, it is necessary to release the cylinder cover and remove the piston to replace the piston ring, which requires a lot of labor, time and cost. There is a problem.
また、ピストンリングは張力によって外側に張り、シリ
ンダの摺動面との間で燃焼ガスのシールを行い、張力:W
は、 ここで、E:材料の弾性率 B:リング幅 T:リング厚さ L:自由合い口すきま C:合い口すきま K:カツター係数 D:呼び径 で表されるため、リングが摩耗すれば張力が低下する。
また、鋳鉄は弾性率がスチールの約1/2であるため、摩
耗時の張力は特に小さくなる。Also, the piston ring is pulled outward by tension to seal combustion gas between the cylinder sliding surface and the tension: W
Is Here, E: elastic modulus of material B: ring width T: ring thickness L: free clearance C: clearance K: cutter coefficient D: Nominal diameter, so if the ring wears, the tension descend.
Further, since cast iron has an elastic modulus of about half that of steel, the tension during wear is particularly small.
さらに、鋳鉄は、スチールに比べて抗折力が小さいため
に折損しやすい等の問題点を有する。Furthermore, cast iron has a problem that it is easily broken due to its smaller transverse rupture strength than steel.
本考案は、前記のような課題に対処するために開発され
たものであって、その目的とする処は、ピストンリング
母材の外周摺動部に多層耐摩耗材部を設けて、耐摩耗
性、耐久性とともに信頼性を向上したピストンリングを
提供するにある。The present invention was developed to address the above-mentioned problems, and the purpose thereof is to provide a multilayer wear-resistant material portion on the outer peripheral sliding portion of the piston ring base material to improve wear resistance. , To provide a piston ring with improved durability and reliability.
（課題を解決するための手段） ピストンのリング溝に装着されてシリンダの摺動面に摺
接するピストンリングにおいて、ピストンリング母材の
外周部に、厚さ0.4〜0.5mmのクロームメッキ層と、厚さ
10μｍ以下のチタン溶射層を交互に混層にして一体に形
成してなる多層耐摩耗部を設けた。またピストンのリン
グ溝に装着されてシリンダの摺動面に摺接するピストン
リングにおいて、ピストンリング母材の外周部に、クロ
ームメッキ層とチタン溶射層を交互に混層にして一体に
形成してなる多層耐摩耗部を設けた。(Means for Solving the Problem) In a piston ring that is mounted in a ring groove of a piston and is in sliding contact with a sliding surface of a cylinder, a chrome-plated layer having a thickness of 0.4 to 0.5 mm is provided on an outer peripheral portion of a piston ring base material. thickness
A multilayer abrasion resistant portion was formed by alternately mixing titanium sprayed layers having a thickness of 10 μm or less and forming them integrally. Also, in a piston ring that is mounted in the ring groove of the piston and is in sliding contact with the sliding surface of the cylinder, a multi-layer structure in which chrome-plated layers and titanium sprayed layers are alternately mixed and formed integrally on the outer peripheral portion of the piston ring base material. A wear resistant part is provided.
（作用） ピストンリング母材の外周部に、厚さ0.4〜0.5mmのクロ
ームメッキ層と厚さ10μｍ以下のチタン溶射層を交互に
混層にして一体に形成してなる多層耐摩耗部を設けるこ
とにより、所望厚さの多層耐摩耗材部の形成が可能とな
り、低コストで耐摩耗性、耐久性が確保され、信頼性が
向上する。(Function) Provide a multi-layer wear-resistant portion, which is formed by alternately forming a chrome-plated layer having a thickness of 0.4 to 0.5 mm and a titanium sprayed layer having a thickness of 10 μm or less in an alternating manner on the outer periphery of the piston ring base material. As a result, it becomes possible to form a multilayer wear-resistant material portion having a desired thickness, wear resistance and durability are secured at low cost, and reliability is improved.
前記多層耐摩耗材部として、クロームメツキ層とチタン
溶射層を交互に混層にして一体に形成することにより、
所望厚さの多層耐摩耗材部が確保され、接着力、耐摩耗
性がさらに高まる。As the multilayer wear-resistant material portion, by alternately forming a chrome plating layer and a titanium sprayed layer as a mixed layer, integrally forming,
A multilayer wear resistant material portion having a desired thickness is secured, and the adhesive strength and wear resistance are further enhanced.
（実施例） 第１図および第２図に本考案の第１実施例を示し、ピス
トンリング母材（11）（片状黒鉛鋳鉄など、強度が要求
される場合は球状黒鉛鋳鉄）の外周槽動部に、最下層か
ら順次にレーザー焼入れの耐摩耗材層（12）、タングス
テンカーバイト溶射の耐摩耗材層（13）、クロームメツ
キの耐摩耗材層（14）およびチタンナイトライド溶射の
耐摩耗材層（15）を混層にして一体に形成してなる多層
耐摩耗部（12,13,14,15）を設けた構成に特徴を有し、
各層をそれぞれ異種の耐摩耗材層（12）（13）（14）
（15）で一体に形成しており、また、第２図に示すよう
に片状黒鉛鋳鉄に比べ摩耗量が大幅に低減され、上層に
なるほど耐摩耗性に優れている。片状黒鉛鋳鉄、レーザ
ー焼入れ、タングステンカーバイト溶射、クロームメツ
キおよびチタンナイトライド溶射の相互接着力は十分に
確保される。前記各耐摩耗材の種類、選択、組合せは、
図示例に限らず各種の変更が可能である。(Embodiment) FIG. 1 and FIG. 2 show a first embodiment of the present invention, in which a piston ring base material (11) (a spheroidal graphite cast iron when strength is required, such as flake graphite cast iron) outer peripheral tank The wear resistant material layer of laser hardening (12), the wear resistant material layer of tungsten carbide sprayed (13), the wear resistant material layer of chrome plated (14) and the wear resistant material layer of titanium nitride sprayed ( 15) is a mixed layer and is integrally formed to have a multilayer abrasion resistant portion (12, 13, 14, 15)
Each layer is made of different wear resistant material layer (12) (13) (14)
(15) is integrally formed. Also, as shown in FIG. 2, the wear amount is greatly reduced compared to flake graphite cast iron, and the higher the layer, the better the wear resistance. The mutual adhesive strength of flake graphite cast iron, laser quenching, tungsten carbide spraying, chrome plating and titanium nitride spraying is sufficiently secured. The type, selection and combination of the above wear resistant materials are
Not limited to the illustrated example, various modifications are possible.
第３図および第４図に本考案の第２実施例を示し、ピス
トンリング母材（21）（片状黒鉛鋳鉄、球状黒鉛鋳鉄、
またはスチール材）の外周摺動部に、厚さ0.4〜0.5mmの
クロームメツキ層（22）と厚さ10μｍ以下のチタン溶射
層（23）を交互に混相にして一体成形してなる多層耐摩
耗材部（22,23）を設けた構成に特徴を有し、第４図に
示すようにクロームメツキ（22）およびチタン溶射（2
3）は片状黒鉛鋳鉄（21）に比べ摩耗量が約半分であ
り、第１実施例と同様な作用効果を有しているととも
に、チタン溶射（23）は優れた接着力を有しクロームメ
ツキ（22）の耐摩耗性をさらに高めることができる。ク
ロームメツキ（22）層の厚さとチタン溶射（23）層の厚
さは同一でもよいが、チタン溶射（23）は高価でなるた
め、薄層とすればコストが節減される。3 and 4 show a second embodiment of the present invention, in which a piston ring base material (21) (flake graphite cast iron, spheroidal graphite cast iron,
Or a steel material), a multilayer wear-resistant material obtained by integrally forming a chrome plated layer (22) with a thickness of 0.4 to 0.5 mm and a titanium sprayed layer (23) with a thickness of 10 μm or less in an alternating mixed phase on the outer peripheral sliding part. The structure is characterized by the provision of the parts (22, 23). As shown in FIG. 4, the chrome plating (22) and titanium spray (2
The wear amount of 3) is about half that of the flake graphite cast iron (21), and it has the same function and effect as those of the first embodiment, and the titanium sprayed (23) has an excellent adhesive force and chrome. The wear resistance of the mat (22) can be further enhanced. The thickness of the chrome plating (22) layer and the thickness of the titanium sprayed (23) layer may be the same, but the titanium sprayed (23) is expensive, so a thin layer saves cost.
ピストンリング母材としてスチールを用いた時は、張力
が大きくなり、折損も少ない。When steel is used as the piston ring base material, the tension is high and the breakage is small.
（考案の効果） 本考案は、前述のようにピストンリング母材の外周部に
厚さ0.4〜0.5mmのクロームメッキ層と厚さ10μｍ以下の
チタン溶射層とを交互に混層にして一体に形成した多層
耐摩耗部を設けたものであるから多層耐摩耗部は所望の
厚さに形成されるとともにクロームメッキ層とチタン溶
射層とは第２図に示すように耐摩耗性、及び耐久性に優
れ、ピストンリングの交換頻度が著しく減少されて稼動
効果が高められ又ピストンリング母材の外周部にクロー
ムメッキ層とチタン溶射層とを交互に混層にして一体に
形成した多層耐摩耗部を設けるときは第４図に示すよう
に耐摩耗性及び耐久性に優れ、ピストンリングの交換頻
度が著しく減少されて稼動効果が高められる等の効果を
有する。(Effect of the Invention) As described above, the present invention forms a chrome-plated layer having a thickness of 0.4 to 0.5 mm and a titanium sprayed layer having a thickness of 10 μm or less alternately on the outer peripheral portion of the piston ring base material to be integrally formed as a mixed layer. Since the multi-layer wear-resistant portion is formed to have a desired thickness, the chrome-plated layer and the titanium sprayed layer have the same wear resistance and durability as shown in FIG. Excellent, the replacement frequency of the piston ring is significantly reduced, and the operation effect is enhanced, and a multilayer wear-resistant portion is formed on the outer periphery of the piston ring base material by alternately mixing chrome plated layers and titanium sprayed layers. In this case, as shown in FIG. 4, the wear resistance and durability are excellent, and the piston ring replacement frequency is significantly reduced, and the operation effect is enhanced.
第１図は本考案の第１実施例を示す横断面図、第２図は
第１図の摩擦特性図、第３図は第２実施例を示す横断面
図、第４図は第３図の摩耗特性図、第５図はピストンリ
ングの配置を示す縦断面図、第６図は従来例の横断面
図、第７図は他の従来例の横断面図、第８図は他の従来
例の横断面図である。 1,11,21:ピストンリング母材 2,3,12,13,14,15:耐摩耗材層 22:クロームメツキ層、23:チタン溶射層FIG. 1 is a transverse sectional view showing a first embodiment of the present invention, FIG. 2 is a friction characteristic diagram of FIG. 1, FIG. 3 is a transverse sectional view showing a second embodiment, and FIG. 4 is FIG. FIG. 5 is a longitudinal sectional view showing the arrangement of piston rings, FIG. 6 is a transverse sectional view of a conventional example, FIG. 7 is a transverse sectional view of another conventional example, and FIG. 8 is another conventional example. It is a cross-sectional view of an example. 1,11,21: Piston ring base material 2,3,12,13,14,15: Wear resistant material layer 22: Chrome plating layer, 23: Titanium sprayed layer
Claims (2)
の摺動面に摺接するピストンリングにおいて、ピストン
リング母材の外周部に、厚さ0.4〜0.5mmのクロームメッ
キ層と、厚さ10μｍ以下のチタン溶射層を交互に混層に
して一体に形成してなる多層耐摩耗部を設けたことを特
徴とするピストンリング。1. A piston ring mounted in a ring groove of a piston and in sliding contact with a sliding surface of a cylinder, wherein a chrome plated layer having a thickness of 0.4 to 0.5 mm and a thickness of 10 μm or less are provided on an outer peripheral portion of a piston ring base material. 2. A piston ring, characterized in that a multilayer wear-resistant portion is formed by alternately mixing and spraying titanium sprayed layers.
の摺動面に摺接するピストンリングにおいて、ピストン
リング母材の外周部に、クロームメッキ層とチタン溶射
層を交互に混層にして一体に形成してなる多層耐摩耗部
を設けたことを特徴とするピストンリング。2. A piston ring mounted in a ring groove of a piston and slidingly contacting a sliding surface of a cylinder, the chrome-plated layers and the titanium sprayed layers being alternately mixed and integrally formed on the outer peripheral portion of the piston ring base material. A piston ring characterized by having a multi-layered wear resistant part formed by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989067300U JPH0717883Y2 (en) | 1989-01-06 | 1989-06-12 | piston ring |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP64-151 | 1989-01-06 | ||
| JP15189 | 1989-01-06 | ||
| JP1989067300U JPH0717883Y2 (en) | 1989-01-06 | 1989-06-12 | piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02141766U JPH02141766U (en) | 1990-11-29 |
| JPH0717883Y2 true JPH0717883Y2 (en) | 1995-04-26 |
Family
ID=31716957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989067300U Expired - Lifetime JPH0717883Y2 (en) | 1989-01-06 | 1989-06-12 | piston ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0717883Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3315556C1 (en) * | 1983-04-29 | 1984-11-29 | Goetze Ag, 5093 Burscheid | Wear-resistant coating |
-
1989
- 1989-06-12 JP JP1989067300U patent/JPH0717883Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02141766U (en) | 1990-11-29 |
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| GB2302930A (en) | Cast iron piston ring |