JPH10183327A - Thermally sprayed film layer having fitness to sliding member - Google Patents
Thermally sprayed film layer having fitness to sliding memberInfo
- Publication number
- JPH10183327A JPH10183327A JP9262984A JP26298497A JPH10183327A JP H10183327 A JPH10183327 A JP H10183327A JP 9262984 A JP9262984 A JP 9262984A JP 26298497 A JP26298497 A JP 26298497A JP H10183327 A JPH10183327 A JP H10183327A
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- wear
- sliding member
- test piece
- conformable
- 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
- 239000000463 material Substances 0.000 claims abstract description 33
- 239000010949 copper Substances 0.000 claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 238000007749 high velocity oxygen fuel spraying Methods 0.000 claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- 239000011247 coating layer Substances 0.000 claims description 46
- 238000005507 spraying Methods 0.000 claims description 16
- 238000007751 thermal spraying Methods 0.000 claims description 5
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052982 molybdenum disulfide Inorganic materials 0.000 abstract description 9
- 239000010953 base metal Substances 0.000 abstract 1
- 229910052961 molybdenite Inorganic materials 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 45
- 238000005299 abrasion Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 11
- 239000000843 powder Substances 0.000 description 11
- 239000010410 layer Substances 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000007747 plating Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 230000013011 mating Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000016571 aggressive behavior Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910018106 Ni—C Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- ATRMIFNAYHCLJR-UHFFFAOYSA-N [O].CCC Chemical compound [O].CCC ATRMIFNAYHCLJR-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ピストンリング等
の摺動部材の表面に、初期なじみ性を向上させる目的で
設けられる溶射被膜層に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal spray coating layer provided on a surface of a sliding member such as a piston ring for the purpose of improving initial conformability.
【０００２】[0002]
【従来の技術】近年、舶用等のディーゼルエンジンの高
性能化が進み、最大圧縮圧力が高くなる傾向にあり、そ
の摺動部には初期なじみ性が要求されるようになった。
そこで従来は、摺動部材の初期なじみ性、例えば、ピス
トンリングの初期なじみ性を向上させるため、ピストン
リングの外周面には銅メッキが施されてきた。2. Description of the Related Art In recent years, the performance of diesel engines for ships and the like has been improved, and the maximum compression pressure has tended to increase. Therefore, sliding parts thereof have been required to have initial conformability.
Therefore, conventionally, the outer peripheral surface of the piston ring has been plated with copper in order to improve the initial conformability of the sliding member, for example, the initial conformability of the piston ring.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た従来の銅メッキでは、これを施したピストンリングを
高性能なディーゼルエンジンに使用した場合、銅メッキ
が柔らかすぎて、初期なじみが終了するまでに銅メッキ
が摩滅してしまうという問題がある。また、銅メッキを
ピストンリングに表面処理するとき、銅メッキをピスト
ンリングの摺動面だけに施すことが難しいという問題も
ある。However, in the above-described conventional copper plating, when a piston ring provided with the copper ring is used for a high-performance diesel engine, the copper plating is too soft and the initial adaptation is completed. There is a problem that copper plating is worn away. Further, when the copper plating is subjected to the surface treatment on the piston ring, there is a problem that it is difficult to apply the copper plating only to the sliding surface of the piston ring.
【０００４】本発明はこのような問題を解決するために
なされたもので、例えば、ピストンリング等の摺動面だ
けに限定して表面処理することが容易である一方、少な
くとも初期なじみが終了するまで摩滅しない溶射被膜
層、つまり耐自己摩耗性に優れ、併せて耐相手攻撃性に
も優れた摺動部材のなじみ性溶射被膜層を提供すること
を課題とする。The present invention has been made to solve such a problem. For example, while it is easy to perform surface treatment only on a sliding surface such as a piston ring, at least the initial adaptation is completed. It is an object of the present invention to provide a sprayed coating layer which does not wear down to a certain extent, that is, a conformable sprayed coating layer for a sliding member which is excellent in self-wear resistance and also has excellent resistance to counterpart attacks.
【０００５】[0005]
【課題を解決するための手段】上述の課題を解決するた
めに、本発明の摺動部材のなじみ性溶射被膜層は、母材
摺動面に高速酸素火炎（ＨＶＯＦ）溶射により形成され
た溶射被膜層であって、この被膜層は、Ａｌが７〜１１
重量％、Ｆｅ、Ｎｉ、Ｍｎのうち１種、２種もしくはす
べてが０．５〜８重量％、残部がＣｕである銅基合金摺
動面材料から成る。この材料の限定理由は、次の通りで
ある。即ち、Ａｌが７重量％未満の場合には十分な硬度
が得られず、１１重量％を超えると被膜が脆くなるた
め、Ａｌの組成範囲は７〜１１重量％とする。Ｆｅ、Ｎ
ｉもしくはＭｎは被膜の靱性向上に寄与するが、０．５
重量％未満の場合には十分な靱性が得られない一方、８
重量％を超えてもその効果が著しくないために、これら
の組成範囲は夫々０．５〜８重量％とする。ここで、高
速酸素火炎（ＨＶＯＦ）溶射は、火炎温度が２７００°
Ｃ程度と比較的低温であるため、溶射剤粉末が熱分解あ
るいは気化する恐れはなく、溶射剤は本来の特性を発揮
する。In order to solve the above-mentioned problems, the conformable sprayed coating layer of the sliding member of the present invention is formed by spraying a high-speed oxygen flame (HVOF) spray on the base material sliding surface. A coating layer comprising 7 to 11 Al
%, One, two, or all of Fe, Ni, and Mn are made of a copper-based alloy sliding surface material having 0.5 to 8% by weight, with the balance being Cu. The reasons for limiting this material are as follows. That is, if Al is less than 7% by weight, sufficient hardness cannot be obtained, and if it exceeds 11% by weight, the coating becomes brittle. Therefore, the composition range of Al is set to 7 to 11% by weight. Fe, N
i or Mn contributes to improving the toughness of the coating,
If the amount is less than 10% by weight, sufficient toughness cannot be obtained,
Since the effect is not remarkable even if it exceeds% by weight, these composition ranges are each 0.5 to 8% by weight. Here, high-temperature oxygen flame (HVOF) spraying has a flame temperature of 2700 °.
Since the temperature is relatively low at about C, there is no possibility that the thermal spray powder is thermally decomposed or vaporized, and the thermal spray exhibits its original characteristics.
【０００６】好ましくは、銅基合金摺動面材料は、Ｍｏ
Ｓ2が２０重量％以下添加されたものである。この材料
の限定理由は、ＭｏＳ2が２０重量％を超えると、被膜
が脆くなり耐自己摩耗性及び耐相手攻撃性が低下すると
共に、密着性も悪くなって剥離が生じるからである。さ
らに好ましくは、母材摺動面には予め耐摩耗性被膜層を
形成しておく。この耐摩耗性被膜層はアンダーコートを
含むものでもよい。これらの耐摩耗性被膜層は溶射によ
って形成することも可能である。Preferably, the sliding surface material of the copper-based alloy is Mo.
In which S 2 is added 20 wt% or less. The reason for limiting this material is that, when MoS 2 exceeds 20% by weight, the coating becomes brittle, the self-wear resistance and the resistance to counterpart attack are reduced, and the adhesion is also deteriorated to cause peeling. More preferably, a wear-resistant coating layer is formed on the base material sliding surface in advance. This wear-resistant coating layer may include an undercoat. These wear-resistant coating layers can be formed by thermal spraying.
【０００７】[0007]
【発明の実施の形態】本発明の実施の形態を、図１に示
すピストンリングに設けた溶射被膜層に基づいて説明す
る。図１に示すように、凸形に形成したピストンリング
母材Ｍの外周摺動面に、溶射被膜層Ｃを高速酸素火炎
（ＨＶＯＦ）溶射により形成する。この溶射被膜層Ｃ
は、Ａｌが７〜１１重量％、Ｆｅ、Ｎｉ、Ｍｎのうち１
種もしくは２種以上が０．５〜８重量％、残部がＣｕで
ある銅基合金摺動面材料から成る。これにより、初期な
じみが終了するまで摩滅しないなじみ性被膜層、つまり
耐自己摩耗性に優れ、併せて耐相手攻撃性にも優れたな
じみ性被膜層が形成される。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described based on a sprayed coating layer provided on a piston ring shown in FIG. As shown in FIG. 1, a sprayed coating layer C is formed on the outer peripheral sliding surface of the convexly formed piston ring base material M by high-speed oxygen flame (HVOF) spraying. This thermal spray coating layer C
Means that 7 to 11% by weight of Al and 1 of Fe, Ni and Mn
The seed or two or more are made of a copper-based alloy sliding surface material in which 0.5 to 8% by weight and the balance are Cu. As a result, a conformable coating layer that does not wear until the initial conformation is completed, that is, a conformable coating layer that is excellent in self-abrasion resistance and also has excellent anti-attack resistance is formed.
【０００８】ここで、 高速酸素火炎（ＨＶＯＦ）溶射
は、図３に示すように、スルザーメテコ社製ダイヤモイ
ドジェットガン（商品名）を用いて実施する。ガン２０
は、二重構造のノズル２１と、そのノズルに外嵌したエ
アキャップ２３と、そのエアキャップを支持するエアキ
ャップボディ２４とから成る。ノズル２１は、内側がイ
ンサート２５、外側がシェル２６である。インサート２
５の内部中央に、パウダーインジェクタ２２が挿入さ
れ、その内部に溶射粉末が窒素ガスにより搬送される。
パウダーインジェクタ２２とインサート２５との間の環
状空隙内に挿入された圧縮空気が、溶射剤粉末をガン２
０から噴出させる。Here, the high-speed oxygen flame (HVOF) thermal spraying is carried out by using a diamond jet gun (trade name) manufactured by Sulzer Metco as shown in FIG. Gun 20
Consists of a nozzle 21 having a double structure, an air cap 23 externally fitted to the nozzle, and an air cap body 24 supporting the air cap. The nozzle 21 has an insert 25 on the inside and a shell 26 on the outside. Insert 2
The powder injector 22 is inserted in the center of the inside of 5, and the sprayed powder is conveyed into the inside by the nitrogen gas.
Compressed air inserted into the annular gap between the powder injector 22 and the insert 25 urges the spray powder into the gun 2.
Spout from zero.
【０００９】インサート２５とシェル２６との間の環状
空隙内に、酸素−プロパン、又は酸素−水素の燃料用ガ
スが挿入され、そのガスはガン２０から噴射され、出口
で点火する。点火したガスは、２７００°Ｃ程度の円筒
形火炎を形成して、同じく噴射する溶射剤粉末を含む。
この火炎により溶射剤粉末は均一に加熱されて溶融す
る。溶融した溶射剤粉末は、８００ｍ／ｓｅｃ．以上の
高速でピストンリングの外周摺動面母材に衝突する。衝
突した溶射剤粉末は瞬時に偏平化し、母材温度まで冷却
して、そこに溶射被膜層を形成する。シェル２６とエア
キャップ２３との間の環状空隙にも圧縮空気が圧入され
る。この圧縮空気は火炎を包んで、ガン２０を冷却す
る。溶射剤粉末は、火炎軸と同方向の軸心方向に供給さ
れるため、粉末粒子は均一に分散する。粉末粒子は、８
００ｍ／ｓｅｃ．以上の高速火炎により高速で母材に衝
突して被膜層を形成するため、緻密性及び密着性が高
く、極めて空孔の少ない被膜層となる。また、このよう
に高速酸素火炎（ＨＶＯＦ）溶射により被膜層を形成す
るので、ピストンリングの外周摺動面だけに限定して被
膜層を形成することが容易である。An oxygen-propane or oxygen-hydrogen fuel gas is inserted into the annular gap between the insert 25 and the shell 26 and is injected from the gun 20 and ignited at the outlet. The ignited gas forms a cylindrical flame at about 2700 ° C. and contains the spraying powder which is also injected.
The spray powder is uniformly heated and melted by this flame. 800 m / sec. At the above high speed, it collides with the outer peripheral sliding surface base material of the piston ring. The impinging spray powder is instantaneously flattened, cooled to the base material temperature, and a spray coating layer is formed thereon. The compressed air is also press-fitted into the annular gap between the shell 26 and the air cap 23. This compressed air wraps the flame and cools the gun 20. Since the spraying agent powder is supplied in the same axial direction as the flame axis, the powder particles are uniformly dispersed. 8 powder particles
00m / sec. Since the coating layer is formed by colliding with the base material at a high speed by the high-speed flame described above, the coating layer has high denseness and adhesion, and has extremely few holes. Further, since the coating layer is formed by high-speed oxygen flame (HVOF) spraying, it is easy to form the coating layer only on the outer peripheral sliding surface of the piston ring.
【００１０】好ましくは、なじみ性被膜層の耐自己摩耗
性及び耐相手攻撃性を一層向上させるため、銅基合金摺
動面材料にＭｏＳ2を２０重量％以下添加する。さらに
好ましくは、母材摺動面と上記なじみ被膜層との間に、
一層から成る耐摩耗性溶射被膜層を高速酸素火炎（ＨＶ
ＯＦ）溶射により形成する。この耐摩耗性溶射被膜層
は、例えば、ＣｒとＷとＭｏとを含む第１材料のニッケ
ル基摺動面材料：６０〜９０重量％と、ＳｉＯ2 が１〜
７重量％添加されたＣｒ2Ｏ3とＭｏＯ3 のいずれか一方
又は双方から成る第２材料：１０〜４０重量％とから成
る。あるいは、母材摺動面と上記なじみ被膜層との間
に、アンダーコートとしての第１層とトップコートとし
ての第２層とから成る耐摩耗性溶射被膜層を高速酸素火
炎（ＨＶＯＦ）溶射により形成してもよい。この耐摩耗
性溶射被膜層は、例えば、第１層がＣｒ3Ｃ2とＮｉ−Ｃ
ｒ合金（Ｃｒ3Ｃ2：２０〜８０重量％、Ｎｉ−Ｃｒ合
金：残部）、好ましくはＣｒ3Ｃ2：５０重量％とＮｉ−
Ｃｒ合金：残部とから成り、第２層が、ＭｏとＣｒとを
主成分とするコバルト基もしくはニッケル基摺動面材料
に硬質粒子としてＣｒ3Ｃ2／Ｎｉ−Ｃｒを３０重量％以
下分散させたものである。これにより、基層として、密
着性が高く緻密で空孔が極めて少ないと共に、耐摩耗性
及び耐スカッフィング性に優れた耐摩耗性溶射被膜層を
備えたなじみ性被膜層が形成される。Preferably, 20% by weight or less of MoS 2 is added to the copper-based alloy sliding surface material in order to further improve the self-abrasion resistance and anti-attack resistance of the conformable coating layer. More preferably, between the base material sliding surface and the conformable coating layer,
A single layer of abrasion resistant thermal spray coating is applied to a high velocity oxygen flame (HV
OF) formed by thermal spraying. The thermal sprayed wear resistant coating layer, for example, the first material of the nickel-based sliding surface material containing Cr and W and Mo: 60 to 90 wt% and, SiO 2 is 1
7 wt% the added Cr 2 O 3 and the second material consists of either or both of the MoO 3: consisting of 10 to 40 wt%. Alternatively, a wear-resistant sprayed coating layer composed of a first layer as an undercoat and a second layer as a topcoat is provided between the base material sliding surface and the conformable coating layer by high-speed oxygen flame (HVOF) spraying. It may be formed. The thermal sprayed wear resistant coating layer, for example, the first layer is Cr 3 C 2 and Ni-C
r alloy (Cr 3 C 2: 20~80 wt%, Ni-Cr alloy: the balance), preferably Cr 3 C 2: 50 wt% and Ni-
Cr alloy: The remainder is composed of the remainder, and the second layer disperses not more than 30% by weight of Cr 3 C 2 / Ni—Cr as hard particles in a cobalt-based or nickel-based sliding surface material containing Mo and Cr as main components. It is a thing. As a result, a conformable coating layer having an abrasion-resistant sprayed coating layer having high adhesion, high density, extremely few holes, and excellent abrasion resistance and scuffing resistance is formed as the base layer.
【００１１】[0011]
【実施例】以下、本発明のなじみ性溶射被膜層を各種の
試験によって説明する。同一のピストンリング用鋳鉄材
の母材上に、次の１１種類の被膜層を形成してテスト片
とした。 Ｃｕ Ａｌ Ｆｅ Ｎｉ Ｍｎ MoS2 比較例 No.1 100.0 - - - - - 実施例 No.2 残り 9.5 1.0 - - - No.3 残り 7.0 - 0.5 - - No.4 残り 11.0 - - 1.0 - No.5 残り 11.0 4.0 2.0 2.0 - No.6 残り 9.5 - 0.5 0.5 - No.7 残り 9.5 2.0 0.5 - - No.8 残り 9.5 1.0 - - 15.0 No.9 残り 7.0 - 0.5 - 20.0 No.10 残り 11.0 - - 1.0 10.0 No.11 残り 11.0 4.0 2.0 2.0 5.0 上表において、テスト片Ｎｏ．１（比較例）は単層銅メ
ッキ被膜層であり、テスト片Ｎｏ．２（実施例）からＮ
ｏ．１１（実施例）までは銅基合金摺動材料による単層
溶射被膜層である。テスト片Ｎｏ．１（比較例）からテ
スト片Ｎｏ．１１（実施例）までの被膜層厚さはいずれ
も１５０μｍであり、また各成分はすべて重量％で記載
されている。EXAMPLES The conformable sprayed coating layer of the present invention will be described below by various tests. The following 11 types of coating layers were formed on the same base material of the cast iron material for the piston ring to obtain test pieces. Cu Al Fe Ni Mn MoS 2 Comparative Example No. 1 100.0-----Example No. 2 Remaining 9.5 1.0----No. 3 Remaining 7.0-0.5--No. 4 Remaining 11.0--1.0-No. 5 Remaining 11.0 4.0 2.0 2.0-No.6 Remaining 9.5-0.5 0.5-No.7 Remaining 9.5 2.0 0.5--No.8 Remaining 9.5 1.0--15.0 No.9 Remaining 7.0-0.5-20.0 No.10 Remaining 11.0--1.0 10.0 No.11 Remaining 11.0 4.0 2.0 2.0 5.0 In the above table, test piece No. Test piece No. 1 (Comparative Example) is a single-layer copper plating film layer. 2 (Example) to N
o. No. 11 (Example) is a single sprayed coating layer made of a copper-based alloy sliding material. Test piece No. 1 (Comparative Example) to Test Piece No. The thicknesses of the coating layers up to 11 (Example) are all 150 μm, and all the components are described in% by weight.
【００１２】これらの溶射被膜層は高速酸素火炎（ＨＶ
ＯＦ）溶射によるものであり、図３に示されるガン２０
を使用して形成された。その溶射条件は次の通りであ
る。 各テスト片について自己摩耗性及び相手攻撃性試験を実
施した。[0012] These thermal spray coating layers are formed by a high-speed oxygen flame (HV).
OF) by thermal spraying, the gun 20 shown in FIG.
Formed using The spraying conditions are as follows. A self-wear property and a mating aggression test were performed on each test piece.
【００１３】即ち、図５に模式的に示すアムスラー型摩
耗試験機により、各テスト片の自己摩耗量と相手材摩耗
量とを測定した。摩耗試験機の容器１５には潤滑油１４
が溜められており、摩耗試験用の相手材１２が潤滑油１
４に部分的に浸されている。相手材１２は円板状もしく
はローラ状のものであり、一定の速度で回転している。
この状態でテスト片１１を相手材１２の外周面に接触さ
せ、回転軸に垂直に荷重をかけて、摩耗の程度を測定し
たものである。That is, the self-wear amount and the counterpart material wear amount of each test piece were measured by an Amsler-type wear tester schematically shown in FIG. Lubricating oil 14 is placed in the container 15 of the abrasion tester.
And the mating material 12 for the wear test is
4 partially immersed. The mating member 12 has a disk shape or a roller shape, and rotates at a constant speed.
In this state, the test piece 11 is brought into contact with the outer peripheral surface of the counterpart material 12, a load is applied perpendicularly to the rotation axis, and the degree of wear is measured.
【００１４】測定条件は、以下の通りである。 周速 ：１ｍ／ｓｅｃ． 荷重 ：４５ｋｇｆ 潤滑油 ：モーターオイル（日本石油：３０Ｐ） 油温 ：８５°Ｃ±１０°Ｃ 試験時間：１００時間 相手材 ：ターカロイ（日本ピストンリング（株）の商
品名として知られているボロン鋳鉄） 測定結果は、図３及び図４に示す通りであった。The measurement conditions are as follows. Circumferential speed: 1 m / sec. Load: 45kgf Lubricating oil: Motor oil (Nippon Oil: 30P) Oil temperature: 85 ° C ± 10 ° C Testing time: 100 hours Mating material: Tarcaloy (boron cast iron known as a trade name of Nippon Piston Ring Co., Ltd.) The measurement results were as shown in FIGS.
【００１５】図３から、自己摩耗性試験において実施例
テスト片Ｎｏ．２からＮｏ．１１までの摩耗量は、いず
れも比較例テスト片Ｎｏ．１の摩耗量を大幅に下回るも
のであった。具体的には、実施例テスト片ではテスト片
Ｎｏ．３が最大の摩耗量を示したが、その摩耗量は比較
例テスト片Ｎｏ．１の摩耗量の４９．８％に過ぎず、耐
自己摩耗性について大幅な改善がなされたことがわか
る。一方、実施例テスト片の中でテスト片Ｎｏ．１０が
最少の摩耗量を示したが、その摩耗量は比較例テスト片
Ｎｏ．１の摩耗量のわずか１５．７％に過ぎないもので
あり、格段の改善がなされた。また、二硫化モリブデン
を全く含有しない実施例テスト片Ｎｏ．２からテスト片
Ｎｏ．７までの摩耗量は、比較例テスト片Ｎｏ．１の摩
耗量の３８．６％〜４９．８％の範囲にあったのに対
し、二硫化モリブデンを５％から２０％の範囲で含有す
る実施例テスト片Ｎｏ．８からテスト片Ｎｏ．１１まで
の摩耗量は、比較例テスト片Ｎｏ．１の摩耗量の１５．
７％〜２８．１％の範囲にあり、二硫化モリブデンを含
有する実施例テスト片はいずれも耐自己摩耗性に極めて
優れていることが確認された。FIG. 3 shows that the test pieces No. 2 to No. 2 All of the wear amounts up to No. 11 were the test pieces of the comparative example. The wear amount was significantly lower than the wear amount of No. 1. Specifically, in the test pieces of the embodiment, the test piece No. No. 3 showed the largest amount of wear. It is only 49.8% of the abrasion loss of No. 1 and it can be seen that the self-wear resistance was greatly improved. On the other hand, test piece No. 10 showed the smallest amount of wear. This is only 15.7% of the wear amount of No. 1 and is a remarkable improvement. In addition, the test piece No. 1 of the example containing no molybdenum disulfide at all. Test piece No. 2 to No. 2 The wear amount up to No. 7 was determined for the test piece No. 7 of the comparative example. Test piece No. 1 containing molybdenum disulfide in the range of 5% to 20% while the wear amount in the range of 38.6% to 49.8% of the wear amount of No. 1 was used. 8 to the test piece no. The wear amount up to No. 11 was determined by the test piece No. of Comparative Example. 15. Wear amount of 1
It was in the range of 7% to 28.1%, and it was confirmed that all of the test specimens containing molybdenum disulfide had excellent self-wear resistance.
【００１６】図４から、相手攻撃性（相手材摩耗量測
定）試験において実施例テスト片Ｎｏ．２からＮｏ．１
１までの摩耗量は、いずれも比較例テスト片Ｎｏ．１の
摩耗量を大幅に下回るものであった。具体的には、実施
例テスト片ではテスト片Ｎｏ．４及びＮｏ．５が最大の
摩耗量を示したが、その摩耗量は比較例テスト片Ｎｏ．
１の摩耗量の４３．３％に過ぎず、耐相手攻撃性につい
ても大幅な改善がなされたことがわかる。一方、実施例
テスト片の中でテスト片Ｎｏ．８及びＮｏ．１１が最少
の摩耗量を示したが、その摩耗量は比較例テスト片Ｎ
ｏ．１の摩耗量のわずか１６．６％に過ぎないものであ
り、格段の改善がなされた。また、二硫化モリブデンを
全く含有しない実施例テスト片Ｎｏ．２からテスト片Ｎ
ｏ．７までの摩耗量は、比較例テスト片Ｎｏ．１の摩耗
量の２６．６％〜４３．３％の範囲にあったのに対し、
二硫化モリブデンを５％から２０％の範囲で含有する実
施例テスト片Ｎｏ．８からテスト片Ｎｏ．１１までの摩
耗量は、比較例テスト片Ｎｏ．１の摩耗量の１６．６％
〜２６．６％の範囲にあり、二硫化モリブデンを含有す
る実施例テスト片はいずれも耐相手攻撃性に極めて優れ
ていることが確認された。From FIG. 4, it can be seen that the test piece No. of the embodiment in the counterpart aggression test (measurement of the amount of wear of the counterpart material) was tested. 2 to No. 2 1
In each of the test pieces No. 1 to No. 1, the wear amount up to No. 1 was obtained. The wear amount was significantly lower than the wear amount of No. 1. Specifically, in the test pieces of the embodiment, the test piece No. 4 and No. 4. No. 5 showed the largest amount of wear.
This is only 43.3% of the abrasion loss of No. 1 and it can be seen that the anti-matter property has been greatly improved. On the other hand, test piece No. 8 and No. 11 showed the smallest amount of wear.
o. This is only 16.6% of the wear amount of No. 1 and is a remarkable improvement. In addition, the test piece No. 1 of the example containing no molybdenum disulfide at all. Test piece N from 2
o. The wear amount up to No. 7 was determined for the test piece No. 7 of the comparative example. 1 was in the range of 26.6% to 43.3% of the wear amount,
Example test piece No. containing molybdenum disulfide in the range of 5% to 20%. 8 to the test piece no. The wear amount up to No. 11 was determined by the test piece No. of Comparative Example. 16.6% of wear amount of 1
２６26.6%, and it was confirmed that all of the test specimens containing molybdenum disulfide had extremely high resistance to counterpart attack.
【００１７】以上のように、本実施例のテスト片Ｎｏ．
２からテスト片Ｎｏ．１１までの耐自己摩耗性及び耐相
手攻撃性は、いずれも比較例テスト片Ｎｏ．１を大幅に
改善するものであり、特に二流化モリブデンを含有する
実施例テスト片Ｎｏ．８からテスト片Ｎｏ．１１まで
は、耐自己摩耗性及び耐相手攻撃性のいずれについても
格段の改善がなされたことが確認された。As described above, the test pieces No.
Test piece No. 2 to No. 2 The self-abrasion resistance and the counter-attack resistance up to No. 11 are the same as those of the test piece No. The test piece of Example No. 1 containing molybdenum disulfide in particular significantly improved Mo. 8 to the test piece no. Up to 11, it was confirmed that both self-wear resistance and counter-attack resistance were significantly improved.
【００１８】[0018]
【発明の効果】以上詳細に説明したように、本発明の摺
動部材のなじみ性溶射被膜層は、耐自己摩耗性及び耐相
手攻撃性が従来のものより極めて優れているから、好ま
しくは、二硫化モリブデンを含有するなじみ性溶射被膜
層は格段の耐自己摩耗性及び耐相手攻撃性を示すから、
より厳しい条件下で使用される摺動部材、例えば、高性
能舶用ディーゼルエンジンのピストンリング等にも、そ
のなじみ被膜として使用できるという格別の効果を奏す
る。また、高速酸素火炎（ＨＶＯＦ）溶射により被膜層
を形成するので、摺動部材の摺動面だけに限定して被膜
層を形成することが容易となる。As described in detail above, the conformal sprayed coating layer of the sliding member of the present invention has extremely excellent self-abrasion resistance and anti-mating property, and is therefore preferably Since the conformal sprayed coating layer containing molybdenum disulfide shows remarkable self-abrasion resistance and anti-partner attack resistance,
The sliding member used under more severe conditions, such as a piston ring of a high-performance marine diesel engine, has a special effect that it can be used as a conformable coating. Further, since the coating layer is formed by high-speed oxygen flame (HVOF) spraying, it is easy to form the coating layer only on the sliding surface of the sliding member.
【図１】 本発明の一実施例の、なじみ性溶射被膜層を
設けたピストンリングの断面正面図である。FIG. 1 is a cross-sectional front view of a piston ring provided with a conformable sprayed coating layer according to an embodiment of the present invention.
【図２】 図１のなじみ性溶射被膜層の高速酸素火炎
（ＨＶＯＦ）溶射を実施するためのガンを示す模式的断
面正面図である。FIG. 2 is a schematic sectional front view showing a gun for performing high-speed oxygen flame (HVOF) spraying of the conformal sprayed coating layer of FIG.
【図３】 本発明の実施例及び比較例の自己摩耗性試験
の結果を示すグラフである。FIG. 3 is a graph showing the results of a self-wear test of Examples and Comparative Examples of the present invention.
【図４】 本発明の実施例及び比較例の相手攻撃性試験
の結果を示すグラフである。FIG. 4 is a graph showing the results of an opponent aggression test of Examples and Comparative Examples of the present invention.
【図５】 本発明の実施例及び比較例の、自己摩耗性及
び相手攻撃性試験を実施するための試験機を示す斜視図
である。FIG. 5 is a perspective view showing a tester for performing a self-abrasiveness and a mating aggression test of Examples and Comparative Examples of the present invention.
Ｃ 溶射被膜層、 Ｍ 母材、 １０ ピストンリング C sprayed coating layer, M base material, 10 piston ring
Claims (4)
溶射により形成された摺動部材のなじみ性溶射被膜層で
あって、前記被膜層は、Ａｌが７〜１１重量％、Ｆｅ、
Ｎｉ、Ｍｎのうち１種もしくは２種以上が０．５〜８重
量％、残部がＣｕである銅基合金摺動面材料から成るこ
とを特徴とする摺動部材のなじみ性溶射被膜層。1. A high-speed oxygen flame (HVOF) is applied to a base material sliding surface.
It is a conformal thermal spray coating layer of a sliding member formed by thermal spraying, wherein the coating layer contains 7 to 11% by weight of Al, Fe,
A conformable sprayed coating layer for a sliding member, characterized in that one or more of Ni and Mn are made of a copper-based alloy sliding surface material in which 0.5 to 8% by weight and the balance is Cu.
２０重量％以下添加されていることを特徴とする、請求
項１に記載の摺動部材のなじみ性溶射被膜層。2. The conformable sprayed coating layer for a sliding member according to claim 1, wherein MoS 2 is added to the copper-based alloy sliding surface material in an amount of 20% by weight or less.
が形成されていることを特徴とする、請求項１又は２に
記載の摺動部材のなじみ性溶射被膜層。3. The conformable sprayed coating layer for a sliding member according to claim 1, wherein a wear-resistant coating layer is formed on the sliding surface of the base material in advance.
含むことを特徴とする、請求項３に記載の摺動部材のな
じみ性溶射被膜層。4. The conformable sprayed coating layer for a sliding member according to claim 3, wherein the wear-resistant coating layer includes an undercoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9262984A JPH10183327A (en) | 1996-10-28 | 1997-09-29 | Thermally sprayed film layer having fitness to sliding member |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8-284943 | 1996-10-28 | ||
| JP28494396 | 1996-10-28 | ||
| JP9262984A JPH10183327A (en) | 1996-10-28 | 1997-09-29 | Thermally sprayed film layer having fitness to sliding member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10183327A true JPH10183327A (en) | 1998-07-14 |
Family
ID=26545805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9262984A Pending JPH10183327A (en) | 1996-10-28 | 1997-09-29 | Thermally sprayed film layer having fitness to sliding member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10183327A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2453150A1 (en) * | 2010-11-10 | 2012-05-16 | United Technologies Corporation | Seal assembly |
| US9995397B2 (en) | 2016-07-12 | 2018-06-12 | United Technologies Corporation | Coated seal housing |
| EP3611348A1 (en) * | 2018-08-17 | 2020-02-19 | United Technologies Corporation | Gas turbine engine seal ring assembly |
| EP3783201A1 (en) * | 2019-08-07 | 2021-02-24 | Raytheon Technologies Corporation | Seal ring assembly for a gas turbine engine |
-
1997
- 1997-09-29 JP JP9262984A patent/JPH10183327A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2453150A1 (en) * | 2010-11-10 | 2012-05-16 | United Technologies Corporation | Seal assembly |
| EP2453150B1 (en) | 2010-11-10 | 2016-05-11 | United Technologies Corporation | Seal assembly |
| EP2453150B2 (en) † | 2010-11-10 | 2019-06-26 | United Technologies Corporation | Method of creating a seal |
| US9995397B2 (en) | 2016-07-12 | 2018-06-12 | United Technologies Corporation | Coated seal housing |
| EP3611348A1 (en) * | 2018-08-17 | 2020-02-19 | United Technologies Corporation | Gas turbine engine seal ring assembly |
| US10920617B2 (en) | 2018-08-17 | 2021-02-16 | Raytheon Technologies Corporation | Gas turbine engine seal ring assembly |
| EP3783201A1 (en) * | 2019-08-07 | 2021-02-24 | Raytheon Technologies Corporation | Seal ring assembly for a gas turbine engine |
| US11149651B2 (en) | 2019-08-07 | 2021-10-19 | Raytheon Technologies Corporation | Seal ring assembly for a gas turbine engine |
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