JPH1018016A - Wear resistant member and treatment of surface thereof - Google Patents
Wear resistant member and treatment of surface thereofInfo
- Publication number
- JPH1018016A JPH1018016A JP17760196A JP17760196A JPH1018016A JP H1018016 A JPH1018016 A JP H1018016A JP 17760196 A JP17760196 A JP 17760196A JP 17760196 A JP17760196 A JP 17760196A JP H1018016 A JPH1018016 A JP H1018016A
- Authority
- JP
- Japan
- Prior art keywords
- coating film
- plating
- film
- dispersed plating
- dispersed
- 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.)
- Pending
Links
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、シリンダやピスト
ンリング等の耐摩耗性部材及びその表面処理方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wear-resistant member such as a cylinder and a piston ring, and a method for treating the surface thereof.
【0002】[0002]
【従来の技術】自動車エンジンのピストンのように、往
復直線運動をする摺動部材は、その摺動部の耐摩耗性を
向上させるために、シリンダの内壁やピストンリング
に、Ni−P−SiC等の分散めっきやTiN等のPV
D(Physical vapour deposition)皮膜による表面処理
が行われている。これらのうちの分散めっきについて
は、通常の分散めっき作業の他、分散めっきを付着した
後、このめっきの硬度を上げるために、被めっき部材を
約350℃で1時間の加熱処理をする。また、被めっき
部材のめっき表面の粗さをなくすために、被めっき部材
の摺動部の研磨を必要としている。2. Description of the Related Art A sliding member that reciprocates linearly, such as a piston of an automobile engine, has Ni-P-SiC on the inner wall of a cylinder or a piston ring in order to improve the wear resistance of the sliding portion. Plating such as TiN and PV such as TiN
Surface treatment with a D (Physical vapor deposition) film is performed. Among these, in addition to the usual dispersion plating operation, after the dispersion plating is adhered, the member to be plated is subjected to a heat treatment at about 350 ° C. for one hour in order to increase the hardness of the plating. Further, in order to eliminate the roughness of the plating surface of the member to be plated, it is necessary to polish the sliding portion of the member to be plated.
【0003】[0003]
【発明が解決しようとする課題】このように摺動部を有
する部材の製作作業では、シリンダの内壁やピストンリ
ング等の摺動部に対して、耐摩耗性を持たせるため分散
めっき処理をした後に、熱処理や研磨作業工程を必要と
する。また、分散めっき皮膜は硬質であるため、エンジ
ンの運転初期においては、相手材を傷つけるようなこと
もある。In the process of manufacturing a member having a sliding portion as described above, the sliding portion such as the inner wall of a cylinder or a piston ring is subjected to a dispersion plating process to provide wear resistance. Later, heat treatment and polishing work steps are required. In addition, since the dispersion plating film is hard, the partner material may be damaged in the initial operation of the engine.
【0004】本発明は上記課題に鑑みてなされたもの
で、分散めっき処理後の作業工程数を減らし、特にエン
ジン等の運転初期において、摺動部を有する部材が相手
方を傷つけることを防止する耐摩耗性部材及びその表面
処理方法を提供することを目的とする。[0004] The present invention has been made in view of the above-mentioned problems, and is intended to reduce the number of work steps after the dispersion plating treatment, and to prevent a member having a sliding portion from damaging a counterpart especially in an early operation of an engine or the like. An object of the present invention is to provide a wearable member and a surface treatment method thereof.
【0005】[0005]
【課題を解決するための手段】以上の目的は、請求項1
に記載の発明によれば、摺動面を設けた耐摩耗性部材の
表面に、加熱硬化を有する分散めっきをしてめっき皮膜
を形成したあと、少なくとも分散めっき皮膜よりも硬度
が小さい皮膜材を、非加熱の分散めっき皮膜上に溶射
し、上記皮膜材からなる摩耗性皮膜を、分散めっき上に
作成したことを特徴とする耐摩耗性部材の表面処理方法
によって達成される。また、請求項2に記載の発明によ
れば、一対の摺動面を有する耐摩耗性部材において、上
記一対の摺動面のうち少なくとも一方の摺動面に分散め
っき皮膜を付着し、この分散めっき皮膜上に、分散めっ
きよりも硬度の小さい摩耗性皮膜を付着したことを特徴
とする耐摩耗性部材によって達成される。The above object is achieved by the present invention.
According to the invention described in the above, after the surface of the wear-resistant member provided with the sliding surface is subjected to dispersion plating having heat curing to form a plating film, at least a coating material having a hardness smaller than the dispersion plating film is formed. This is achieved by a surface treatment method for a wear-resistant member, characterized in that a wear-resistant film made of the above-mentioned coating material is formed on the dispersion plating by spraying on a non-heated dispersion plating film. According to the second aspect of the present invention, in a wear-resistant member having a pair of sliding surfaces, a dispersion plating film is attached to at least one of the pair of sliding surfaces, and the dispersion plating film is dispersed. This is achieved by a wear-resistant member characterized in that an abradable film having a hardness lower than that of dispersion plating is adhered on a plating film.
【0006】[0006]
【発明の実施の形態】以下、本発明の実施の形態による
耐摩耗性部材及びその表面処理方法について、図面を参
照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a wear-resistant member and a surface treatment method thereof according to an embodiment of the present invention will be described with reference to the drawings.
【0007】図1は、シリンダの内壁を摺動する耐摩耗
性部材であるピストンリング1の一断面を示す。ピスト
ンリング1の周部は、分散めっきを施こした直後であ
り、分散めっき皮膜2の加熱処理や、めっき皮膜表面の
研磨処理を行っていない。したがって、分散めっき皮膜
2の表面は粗面であり微小な凹凸がある。分散めっき液
については、本実施の形態では、Ni−P−SiCを使
用しているが、加熱硬化性があれば、他の種類のめっき
液も使用できる。FIG. 1 shows a cross section of a piston ring 1 which is a wear-resistant member that slides on the inner wall of a cylinder. The periphery of the piston ring 1 has just been subjected to dispersion plating, and has not been subjected to the heat treatment of the dispersion plating film 2 or the polishing treatment of the plating film surface. Therefore, the surface of the dispersion plating film 2 is rough and has fine irregularities. In the present embodiment, Ni-P-SiC is used as the dispersion plating solution, but other types of plating solutions can be used as long as they have heat-curing properties.
【0008】図2は、ピストンリング1に形成した分散
めっき皮膜2上に、摩耗性皮膜であるアブレイダブル皮
膜3を、プラズマ溶射で作成した状態を示す。アブレイ
ダブル皮膜3は、めっき皮膜に密着するもので、少なく
とも分散めっき皮膜2よりも硬度が小さく、樹脂やグラ
ファイトと金属から成る溶射皮膜をいう。アブレイダブ
ル皮膜3の具体的成分は、Al−Si−ポリエステル、
Al−Si−ポリイミド、Alグラファイト、Ni−グ
ラファイト等が使用できる。これらをプラズマ溶射する
と、金属のマトリックス内に樹脂等が分散した状態にな
る。摩耗性皮膜の皮膜材としては、アブレイダブル皮膜
の他にAl、Al合金、その他の比較的軟質な金属溶射
皮膜も利用できる。FIG. 2 shows a state in which an abradable film 3 as an abradable film is formed on a dispersion plating film 2 formed on a piston ring 1 by plasma spraying. The abradable film 3 adheres to the plating film, has a lower hardness than at least the dispersed plating film 2, and refers to a thermal sprayed film made of resin, graphite, and metal. Specific components of the abradable film 3 are Al-Si-polyester,
Al-Si-polyimide, Al graphite, Ni-graphite and the like can be used. When these are plasma-sprayed, a resin or the like is dispersed in a metal matrix. As a coating material of the abrasion coating, besides the abradable coating, Al, an Al alloy, and other relatively soft metal spray coatings can be used.
【0009】分散めっき皮膜2は、プラズマ溶射の溶射
時に溶射物によって加熱される。これにより、分散めっ
き皮膜2は、プラズマ溶射の熱で熱硬化するので、従来
のように加熱処理する必要がなく、加熱処理をはぶくこ
とができる。The dispersed plating film 2 is heated by the sprayed material at the time of plasma spraying. Thereby, since the dispersed plating film 2 is thermally cured by the heat of plasma spraying, it is not necessary to perform the heat treatment as in the related art, and the heat treatment can be skipped.
【0010】図2に示すように、アブレイダブル皮膜3
は分散めっき2の凹面に入り込み、軟質なので初期のな
じみに優れている。また、図3に示すように、ピストン
リング1は、これをピストンと共にシリンダ4内に配設
してエンジンを駆動させ、矢印aのように往復直線運動
をさせると、研磨加工を行わないでも運転初期におい
て、不要なアブレイダブル皮膜3は削り取られて無くな
ってしまう。しかも、アブレイダブル皮膜3は分散めっ
き皮膜2の表面凹部に入り込んでいるので、アブレイダ
ブル皮膜3が削れ、分散めっき2の表面が露出しても、
ピストンリング1の表面粗さは非常に小さくなり、相手
材のシリンダ4面に対する攻撃性は極めて低くなる。[0010] As shown in FIG.
Is infiltrated into the concave surface of the dispersion plating 2 and is excellent in initial adaptation because it is soft. As shown in FIG. 3, when the piston ring 1 is disposed together with the piston in the cylinder 4 to drive the engine and make a reciprocating linear motion as indicated by an arrow a, the piston ring 1 can be operated without polishing. At the initial stage, the unnecessary abradable film 3 is scraped off and disappears. Moreover, since the abradable film 3 enters the concave portions of the surface of the dispersion plating film 2, even if the abradable film 3 is scraped and the surface of the dispersion plating 2 is exposed,
The surface roughness of the piston ring 1 becomes very small, and the aggressiveness of the mating material on the cylinder 4 surface becomes extremely low.
【0011】[0011]
【実施例】次に、本発明の実施例による耐摩耗性部材及
びその表面処理方法について説明する。なお、母材とし
て、試験片(AC4C)を用い、以下のようにしてめっ
き及び溶射皮膜を作成し試料とした。Next, a description will be given of a wear-resistant member and a surface treatment method according to an embodiment of the present invention. In addition, a test piece (AC4C) was used as a base material, and a plating and a thermal spray coating were prepared as described below to obtain a sample.
【0012】図4に示すような流れ図によって、母材の
表面にめっき前処理をした後、Ni−P−SiC分散め
っきを行った。めっき浴は通常のスルファミン酸ニッケ
ル系の浴組成でよく、そのめっき組成とめっき条件は次
のとおりである。 (1)スルファミン酸ニッケル : 535ml/l 塩化ニッケル : 15g/l ほう酸 : 45g/l サッカリンソーダ : 3.2g/l 次亜リン酸 : 1.5g/l SiC : 10〜100g/l (2)めっき条件 1次電流密度 : 5A/dm2 2次電流密度 : 20A/dm2 温度 : 55〜60℃ pH : 4.5According to the flow chart shown in FIG. 4, the surface of the base material was pre-plated, and then Ni-P-SiC dispersed plating was performed. The plating bath may be an ordinary nickel sulfamate-based bath composition, and its plating composition and plating conditions are as follows. (1) Nickel sulfamate: 535 ml / l Nickel chloride: 15 g / l Boric acid: 45 g / l Saccharin soda: 3.2 g / l Hypophosphorous acid: 1.5 g / l SiC: 10 to 100 g / l (2) Plating Conditions Primary current density: 5 A / dm 2 Secondary current density: 20 A / dm 2 Temperature: 55-60 ° C. pH: 4.5
【0013】上記めっき作業の結果、試験片の表面に約
150μmの分散めっき皮膜を形成した。次いで、プラ
ズマ溶射によりAl−グラファイト皮膜を分散めっき上
に作成し、この試験片を切断したものを実施例の試料と
した、また比較例として、試験片に分散めっき皮膜のみ
を形成したものを使用した。以下、実施例と比較例の硬
度、摩擦係数を測定した結果を示す。 (1)硬度試験 硬度はビッカース硬さによる測定値である。 実施例 : Hmv 780 比較例 : Hmv 620〜630 (2)摩擦試験 ピンオンディスク型摩擦摩耗試験機により摩擦係数を測
定した。試験条件は、荷重200N、摩擦速度2.74
m/s、潤滑油10w−40、潤滑油温度130℃であ
る。 実施例 : 0.08 比較例 : 0.13As a result of the plating operation, a dispersion plating film of about 150 μm was formed on the surface of the test piece. Next, an Al-graphite film was formed on the dispersion plating by plasma spraying, and a sample obtained by cutting the test piece was used as a sample of an example. As a comparative example, a test piece having only a dispersion plating film formed on the test piece was used. did. Hereinafter, the results of measuring the hardness and the coefficient of friction of the examples and comparative examples are shown. (1) Hardness test Hardness is a value measured by Vickers hardness. Example: Hmv 780 Comparative Example: Hmv 620-630 (2) Friction test The friction coefficient was measured with a pin-on-disk type friction and wear tester. The test conditions were a load of 200 N and a friction speed of 2.74.
m / s, lubricating oil 10w-40, lubricating oil temperature 130 ° C. Example: 0.08 Comparative Example: 0.13
【0014】上記結果から、アブレイダブル皮膜を分散
めっき上に作成したことにより、分散めっき皮膜の硬度
が大きくなり、摩擦係数が小さくなったのがわかる。し
たがって、摺動部に用いる耐摩耗性部材として極めて優
れたものになる。From the above results, it can be seen that the hardness of the dispersed plating film was increased and the friction coefficient was decreased by forming the abradable film on the dispersion plating. Therefore, it becomes extremely excellent as a wear-resistant member used for the sliding portion.
【0015】以上、本発明の実施の形態について説明し
たが、勿論、本発明はこれに限定されることなく本発明
の技術的思想に基いて種々の変形が可能である。Although the embodiments of the present invention have been described above, the present invention is, of course, not limited thereto, and various modifications can be made based on the technical concept of the present invention.
【0016】例えば、以上の実施の形態によれば、耐摩
耗性部材としてピストンリングを用いて説明したが、本
発明はピストンリングのように摺動する部材のみなら
ず、シリンダの内壁のように摺動される方の側にも、分
散めっき皮膜上にアブレイダブル皮膜を作成することで
も同様な効果を奏する。すなわち、本発明の摩耗性皮膜
は、摺動面がある場合は、摺動する側の部材及び摺動さ
れる側の部材のうちいずれにも、またいずれか一方のみ
にでも用いることができる。For example, according to the above embodiment, the piston ring has been described as a wear-resistant member. However, the present invention is not limited to a sliding member such as a piston ring, but may be a member such as an inner wall of a cylinder. A similar effect can be obtained by forming an abradable film on the dispersed plating film on the side to be slid. That is, when there is a sliding surface, the abrasion film of the present invention can be used for any one of the sliding member and the sliding member, or only one of them.
【0017】また、以上の実施の形態では、耐摩耗性部
材をピストンリングのように往復直線運動するもので説
明したが、回転軸のように回転運動するものについて
も、回転軸側及び軸受側の摺動面にも用いることができ
る。In the above embodiment, the wear-resistant member reciprocates linearly like a piston ring. However, the wear-resistant member which rotates like a rotating shaft also has a rotating shaft side and a bearing side. Can also be used for the sliding surface.
【0018】[0018]
【発明の効果】以上述べたように、本発明は請求項1に
記載の発明によれば、加熱硬化を有する分散めっき皮膜
を形成した後に、溶射して分散めっき上に摩耗皮膜作成
する方法を採っているので、分散めっきを加熱処理しな
くても分散めっき皮膜を硬化することができる。また、
分散めっき表面の研磨作業をする必要がなく、作業工程
を減らすことができる。したがって、耐摩耗性部材を低
コストで製作でき、製造時間も短縮できる。請求項2に
記載した発明によれば、耐摩耗性部材に摺動面に分散め
っき皮膜を付着し、分散めっき皮膜表面の凹部に入り込
んでいるので、摩耗皮膜が削れて、表面の粗さは非常に
小さくなり、相手材に対する攻撃性は極めて低く、耐摩
耗性部材の運転初期のなじみが良くなる。As described above, according to the first aspect of the present invention, there is provided a method for forming an abrasion film on a dispersion plating by spraying after forming a dispersion plating film having heat curing. Since the dispersion plating is employed, the dispersion plating film can be cured without heat treatment of the dispersion plating. Also,
There is no need to perform a polishing work on the dispersed plating surface, and the number of working steps can be reduced. Therefore, the wear-resistant member can be manufactured at low cost, and the manufacturing time can be shortened. According to the invention described in claim 2, the dispersion plating film adheres to the sliding surface of the wear-resistant member and enters the concave portion of the dispersion plating film surface, so that the wear film is scraped and the surface roughness is reduced. It becomes very small, the aggressiveness to the counterpart material is extremely low, and the familiarity of the wear-resistant member at the beginning of operation is improved.
【図1】本発明の実施の形態による耐摩耗性部材である
ピストンリングの表面に、分散めっきを施している状態
を示す側断面図である。FIG. 1 is a side sectional view showing a state where a surface of a piston ring which is a wear-resistant member according to an embodiment of the present invention is subjected to dispersion plating.
【図2】同ピストンリングの分散めっきの表面に、アブ
レイダブル皮膜を作成した状態を示す側断面図である。FIG. 2 is a side sectional view showing a state in which an abradable film is formed on the surface of the piston ring on which dispersion plating is performed.
【図3】同ピストンリングを摺動させたあとの状態を示
す側断面図である。FIG. 3 is a side sectional view showing a state after sliding the piston ring.
【図4】本発明の実施例における分散めっきの前処理条
件を説明するための流れ図である。FIG. 4 is a flowchart for explaining pretreatment conditions for dispersion plating in an example of the present invention.
1 ピストンリング 2 分散めっき皮膜 3 アブレイダブル皮膜 4 シリンダ Reference Signs List 1 piston ring 2 dispersion plating film 3 abradable film 4 cylinder
Claims (2)
加熱硬化を有する分散めっきをしてめっき皮膜を形成し
たあと、少なくとも分散めっき皮膜よりも硬度が小さい
皮膜材を、非加熱の分散めっき皮膜上に溶射し、上記皮
膜材からなる摩耗性皮膜を、分散めっき上に作成したこ
とを特徴とする耐摩耗性部材の表面処理方法。1. A surface of a wear-resistant member provided with a sliding surface,
After forming a plating film by performing dispersion plating having heat curing, a coating material having a hardness smaller than at least the dispersion plating film is sprayed onto a non-heated dispersion plating film, and an abrasion coating composed of the above coating material is formed. A method for treating a surface of a wear-resistant member, wherein the surface treatment is performed on dispersion plating.
いて、上記一対の摺動面のうち少なくとも一方の摺動面
に分散めっき皮膜を付着し、この分散めっき皮膜上に、
分散めっきよりも硬度の小さい摩耗性皮膜を付着したこ
とを特徴とする耐摩耗性部材。2. A wear-resistant member having a pair of sliding surfaces, wherein a dispersion plating film is attached to at least one of the pair of sliding surfaces, and on the dispersion plating film,
A wear-resistant member having a wear-resistant film having a hardness lower than that of dispersion plating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17760196A JPH1018016A (en) | 1996-07-08 | 1996-07-08 | Wear resistant member and treatment of surface thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17760196A JPH1018016A (en) | 1996-07-08 | 1996-07-08 | Wear resistant member and treatment of surface thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1018016A true JPH1018016A (en) | 1998-01-20 |
Family
ID=16033858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17760196A Pending JPH1018016A (en) | 1996-07-08 | 1996-07-08 | Wear resistant member and treatment of surface thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1018016A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013118701A1 (en) * | 2012-02-06 | 2013-08-15 | 三菱重工業株式会社 | Sealing structure and rotating machine equipped with same |
-
1996
- 1996-07-08 JP JP17760196A patent/JPH1018016A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013118701A1 (en) * | 2012-02-06 | 2013-08-15 | 三菱重工業株式会社 | Sealing structure and rotating machine equipped with same |
JP2013160313A (en) * | 2012-02-06 | 2013-08-19 | Mitsubishi Heavy Ind Ltd | Seal structure and rotary machine including the same |
KR20140083048A (en) * | 2012-02-06 | 2014-07-03 | 미츠비시 히타치 파워 시스템즈 가부시키가이샤 | Sealing structure and rotating machine equipped with same |
CN103958949A (en) * | 2012-02-06 | 2014-07-30 | 三菱日立电力系统株式会社 | Sealing structure and rotating machine equipped with same |
CN103958949B (en) * | 2012-02-06 | 2016-03-16 | 三菱日立电力系统株式会社 | Sealing configuration and possess the rotating machinery of sealing structure |
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