JPH03260474A - Piston ring - Google Patents
Piston ringInfo
- Publication number
- JPH03260474A JPH03260474A JP5724690A JP5724690A JPH03260474A JP H03260474 A JPH03260474 A JP H03260474A JP 5724690 A JP5724690 A JP 5724690A JP 5724690 A JP5724690 A JP 5724690A JP H03260474 A JPH03260474 A JP H03260474A
- Authority
- JP
- Japan
- Prior art keywords
- film
- self
- grain sizes
- base
- piston ring
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 44
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims description 39
- 238000000576 coating method Methods 0.000 claims description 39
- 239000002245 particle Substances 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 3
- 238000001465 metallisation Methods 0.000 abstract 3
- 238000004299 exfoliation Methods 0.000 abstract 2
- 230000001815 facial effect Effects 0.000 abstract 2
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000009827 uniform distribution Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 12
- 239000007921 spray Substances 0.000 description 8
- 239000002344 surface layer Substances 0.000 description 7
- 238000007751 thermal spraying Methods 0.000 description 5
- 229910001141 Ductile iron Inorganic materials 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001203 Alloy 20 Inorganic materials 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野） 本発明は溶射ピストンリングに関する。[Detailed description of the invention] [Industrial application field] The present invention relates to thermal spray piston rings.
ピストンリングの外周面に溶射皮膜を形成したものは知
られており、通常Ｍｏ以外の溶射材を使用する場合は、
母材との密着性を良好にするために、表層部の溶射皮膜
の下に下地溶射皮膜を設ける。この場合、通常、ピスト
ンリングの外周面に浅い凹溝を全周にわたって形成し、
その溝内の全表面に下地溶射皮膜を設け、その溝内に表
層部の溶射材を溶着して形成する。Piston rings with a thermally sprayed coating formed on the outer circumferential surface are known, and when using a thermally sprayed material other than Mo,
In order to improve adhesion to the base material, a base sprayed coating is provided below the surface sprayed coating. In this case, usually a shallow groove is formed on the outer circumferential surface of the piston ring,
A base thermal spray coating is provided on the entire surface within the groove, and the thermal spray material for the surface layer is welded into the groove.
そして、従来、例えばＮ１−Ａｊ！下地溶射材が使用さ
れて、内燃機関用エンジンで一定の効果を出したが、高
負荷化する中では不十分で、Ｎｉ−Ａｌ下地溶射皮膜が
層内剥離することがある。Conventionally, for example, N1-Aj! Underlying thermal sprayed materials have been used to achieve certain effects in internal combustion engines, but they are not sufficient under high loads, and the Ni--Al underlying thermally sprayed coating may peel off within the layer.
また、Ｎｔ−Ａｊ！下地溶射材は、５〜１０％ＡＥとＮ
ｉであるため、硬度が低く耐摩耗性に乏しい欠点があり
、外周面に露出したＮｉ−Ａｔ下地溶射皮膜は燃焼生成
硬質粉によって容易に摩耗して、外周面において母材と
表層部の溶射皮膜との間に段付摩耗を生じ、その凹部が
切欠作用となり耐ＩＪｌｉ離性が劣化し、またこの凹部
部分のエツジ部がシリンダ壁面を異常に加速摩耗させる
ことがある。Also, Nt-Aj! The base thermal spray material is 5-10% AE and N.
i, it has the disadvantage of low hardness and poor wear resistance, and the exposed Ni-At base thermal spray coating on the outer circumferential surface is easily worn away by the hard powder produced by combustion, causing the thermal spraying of the base material and surface layer on the outer circumferential surface to deteriorate. Stepped wear occurs between the cylinder and the coating, and the recess acts as a notch, deteriorating the IJli separation resistance, and the edges of the recess may cause abnormally accelerated wear on the cylinder wall surface.
本発明は以上の事情に鑑みてなされたもので、耐摩耗性
、耐焼付性にすぐれるとともに、ピストンリング母材及
び表層部の溶射皮膜との密着性にすぐれ、耐剥離強度の
高い下地溶射皮膜を備えた溶射ピストンリングを提供す
ることを目的とする。The present invention has been made in view of the above circumstances, and it is a base thermal spray that has excellent wear resistance and seizure resistance, has excellent adhesion to the piston ring base material and the thermal sprayed coating on the surface layer, and has high peeling resistance. An object of the present invention is to provide a thermal sprayed piston ring with a coating.
本発明の構成は、外周面に形成した下地溶射皮膜上に表
層部の溶射皮膜を備えるピストンリングにおいて、前記
下地溶射皮膜が、粒度４４μｍ以上で１２５μｍ未満の
Ｍ ｏ ６０〜８０重量％と、粒度１０μｍ以上で６４
μｍ未満のＮｉ自溶性合金２０〜４０重量％との溶射材
からなり、かつその皮膜厚さが２０〜１１００ｔｔであ
ることを特徴とする。The structure of the present invention is that in a piston ring having a surface sprayed coating on a base sprayed coating formed on the outer circumferential surface, the base sprayed coating has a particle size of 44 μm or more and less than 125 μm and a particle size of 60 to 80% by weight. 64 for 10 μm or more
It is characterized by being made of a thermal sprayed material with 20 to 40% by weight of Ni self-fluxing alloy of less than μm, and having a coating thickness of 20 to 1100 tt.
Ｎｉ自溶性合金は重量比でＣｒ９〜１１％、Ｂ１．５〜
２．５％、Ｓ ｉ ２． ０〜３．５％、Ｃ０，５％以
下、Ｆｅ４％以下、Ｃｏ１％以下、Ｎｉ残部からなるの
がよい。Ni self-fusing alloy has a weight ratio of Cr9 to 11% and B1.5 to
2.5%, S i 2. It is preferable that the content is 0 to 3.5%, CO 0.5% or less, Fe 4% or less, Co 1% or less, and the remainder Ni.
ＭＯを６０〜８０重量％含んでいるので、ピストンリン
グ母材との密着性がよい。Since it contains 60 to 80% by weight of MO, it has good adhesion to the piston ring base material.
以下、ピストンリング母材との密着性の評価試験を説明
する。An evaluation test for adhesion to the piston ring base material will be described below.
球状黒鉛鋳鉄よりなるリング径９０ｍｍφのピストンリ
ングの外周筒の母材表面を、粗さ２０μｍＲＺにブラス
ト加工した後、下地溶射材を単層でプラズマ溶射し、常
法で仕上加工した。そして、ピストンリングの内周の対
称位置に配置する一対のピンを反対方向に動かしてピス
トンリングを拡げ、＃ｌ！ＩＮ又はクランク発生までの
拡げ量と、溶射皮膜の残留量で密着性を調べた。The base material surface of the outer circumferential cylinder of a piston ring made of spheroidal graphite cast iron and having a ring diameter of 90 mm was blasted to a roughness of 20 μm RZ, and then a single layer of base thermal spray material was plasma sprayed and finished using a conventional method. Then, move a pair of pins arranged at symmetrical positions on the inner circumference of the piston ring in opposite directions to expand the piston ring, and #l! Adhesion was examined based on the amount of expansion until IN or cranking and the amount of remaining thermal spray coating.
使用溶射材：ＭＯとＮｉ自溶性合金
ＭＯは純度９９．７％、Ｎｉ自溶性合金はＪＩＳ ＭＳ
ＦＮｉ−２相当材である。また、Ｍｏの粒度は４４μｍ
以上１２５．ｃａｍ未満、Ｎｉ自溶性合金の粒度は１０
μｍ以上６４μｍ未満である。Thermal spraying materials used: MO and Ni self-fusing alloy MO has a purity of 99.7%, Ni self-fusing alloy has JIS MS
It is a material equivalent to FNi-2. In addition, the particle size of Mo is 44 μm
Above 125. cam, the grain size of Ni self-fluxing alloy is 10
It is not less than μm and less than 64 μm.
表１にＭｏ量を変えた場合の結果を示す。Table 1 shows the results when the amount of Mo was changed.
表１
上記結果から、Ｍｏ６０〜８０重量％で、溶射残留量が
１００％で拡げ量も大きいことがわかる（第３図参照）
。Table 1 From the above results, it can be seen that when Mo is 60 to 80% by weight, the sprayed residual amount is 100% and the amount of expansion is large (see Figure 3).
.
また、Ｍｏの他にＮｉ自溶性合金を含むので、耐摩耗性
、耐焼付性がすぐれ、また抗張力が高くクラックを生し
にくい、特に、重量比でＣｒ９〜１１％、８１．５〜２
．５％、Ｓ ｉ ２．０〜３．５％、Ｃ０１５％以下、
Ｆｅ４％以下、００１％以下、Ｎｉ残部からなるＮｉ自
溶性合金は、引張強度が５６Ｋｇ／ｍｍｚ、硬さＨ，Ｃ
４０と高イノテ好マシい。Also, since it contains Ni self-fluxing alloy in addition to Mo, it has excellent wear resistance and seizure resistance, and has high tensile strength and is resistant to cracking.In particular, it has a weight ratio of 9 to 11% Cr, 81.5 to 2
．． 5%, Si 2.0-3.5%, C015% or less,
The Ni self-fusing alloy consisting of Fe4% or less, 001% or less, and the remainder Ni has a tensile strength of 56Kg/mmz and a hardness of H,C.
40 and high intelligence are better.
またＭｏ粒度を４４μｍ以上で１２５μｍ未満とすると
、下地溶射皮膜の粗さが大きくなり、表層部の溶射皮膜
との結合力が大きい。下地溶射皮膜と表層部の溶射皮膜
の結合はインターロック結合であり（第２図参照、１は
ピストンリング母材、３は下地溶射皮膜、４は表層部の
溶射皮膜）、そのため結合力を上げるには下地溶射皮膜
の表面粗さを粗くする必要があり、それには下地溶射材
の粒度を大きくするのがよい。なお、１２５μｍ以上で
あると、ＭＯ粉が未溶解になるので、結合力は劣化する
。When the Mo particle size is 44 μm or more and less than 125 μm, the roughness of the base sprayed coating becomes large and the bonding force with the surface sprayed coating becomes large. The bond between the base sprayed coating and the surface sprayed coating is an interlock bond (see Figure 2, 1 is the piston ring base material, 3 is the base sprayed coating, and 4 is the surface sprayed coating), which increases the bonding strength. In order to achieve this, it is necessary to increase the surface roughness of the base thermal spray coating, and for this purpose, it is better to increase the particle size of the base thermal spray material. In addition, if it is 125 μm or more, the MO powder becomes undissolved and the bonding strength deteriorates.
一方、Ｎｉ自溶性合金の粒度が大きいと、溶射皮膜内の
均一性が劣り、層内強度が低下し、層内剥離を生しる。On the other hand, if the particle size of the Ni self-fluxing alloy is large, the uniformity within the sprayed coating will be poor, the intralayer strength will decrease, and intralayer peeling will occur.
これは粒子が溶融し、各粒子が積層する溶射皮膜の特性
であり、ＭＯ層の補強材として作用しているＮｉ自溶性
合金は均一であることが必要で、粒子の大きさは小さい
方がより均一に分布し結合力を強化する。よって、Ｎｉ
自溶性合金の粒度は１０μｍ以上で６４μｍ未満とする
。This is a characteristic of the thermal spray coating in which the particles are melted and each particle is layered, and the Ni self-fluxing alloy that acts as a reinforcing material for the MO layer needs to be uniform, and the smaller the particle size, the better. It distributes more evenly and strengthens the bonding force. Therefore, Ni
The particle size of the self-fusing alloy is 10 μm or more and less than 64 μm.
以下に、下地溶射皮膜の上に表層部の溶射皮膜を形成し
たピストンリングについて、ＭＯとＮｉ自溶性合金の粒
度を変えた場合のねしりテストを行い、剥離の有無を調
べた。Below, piston rings in which a surface sprayed coating was formed on a base thermal sprayed coating were subjected to a torsion test in which the grain sizes of MO and Ni self-fluxing alloy were varied, and the presence or absence of peeling was investigated.
球状黒鉛鋳鉄よりなるリング径９０ｍｍφのピストンリ
ングの外周面に浅い凹溝を全周にわたって形成し、その
凹溝の母材表面を粗さ２０μｍＲＺにブラスト加工した
後、その溝内の全表面に下地溶射材をプラズマ溶射して
厚さ６０μｍの下地溶射皮膜を設け、その溝内に表層部
の溶射材をプラズマ溶射して厚さ１４０μｍの溶射皮膜
を形成し、常法で仕上加工した。そして、ピストンリン
グを６０度ねじり（合口を上下にずらす）、合口と反対
側の２０ｍｍの区間の剥離の有無を調べた。A shallow groove is formed on the outer circumferential surface of a piston ring with a ring diameter of 90 mmφ made of spheroidal graphite cast iron, and after blasting the base material surface of the groove to a roughness of 20 μm RZ, a base material is applied to the entire surface inside the groove. A thermal sprayed material was plasma sprayed to form a base sprayed coating with a thickness of 60 μm, and the surface sprayed material was plasma sprayed into the grooves to form a sprayed coating with a thickness of 140 μm, which was then finished using a conventional method. Then, the piston ring was twisted 60 degrees (shifting the abutment up and down), and the presence or absence of peeling in a 20 mm section on the opposite side of the abutment was examined.
結果を表２に示す、なお、工０個のピストンリングにつ
いて行い、＠離を生しないものは○、＃Ｊ＃を生したも
のが１〜５個の場合は△、剥離を生したものが６〜１０
個の場合は×で示す。The results are shown in Table 2. The test was performed on 0 piston rings. Those with no peeling are ○, those with #J# are 1 to 5, △, and those with peeling are rated △. 6-10
In the case of 1, it is indicated by ×.
使用下地溶射材：Ｍｏ ７Ｑ重量％Ｎｉ自
溶性合金 ３０重置％
（ＪＩＳ ＭＳＦＮｉ−２相当材）
表層部の使用溶射材：高Ｃｒ鋳鉄 ５０重量％Ｍ０
３０重量％
Ｎ１自溶性合金 ２０重量％
（ＪＩＳ ＭＳＦＮｉ−２相当材）
表２
上記より、Ｍｏの粒度４４μｍ以上１２５μｍ未満、Ｎ
ｉ自溶性合金の粒度１０μｍ以上６４μｍ未満が良好で
あることがわかる。Base thermal spraying material used: Mo 7Q weight% Ni self-fluxing alloy 30% (JIS MSFNi-2 equivalent material) Surface spraying material: High Cr cast iron 50% M0
30% by weight N1 self-fluxing alloy 20% by weight (JIS MSFNi-2 equivalent material) Table 2 From the above, the particle size of Mo is 44 μm or more and less than 125 μm, N
It can be seen that the grain size of the self-fusing alloy is preferably 10 μm or more and less than 64 μm.
次に、拡げ密着テストを行った。Next, a spread adhesion test was conducted.
ピストンリングは上記ねしりテストで説明したものと同
様にして作製した。なお、比較例として、下地溶射皮膜
を設けないもの（比較１）と、下地溶射皮膜がＮｒ−５
％Ａｆ（比較２）も作製した。Piston rings were made in the same manner as described in the sagging test above. In addition, as a comparative example, one without a base thermal spray coating (comparison 1) and one with a base thermal spray coating of Nr-5
%Af (comparison 2) was also produced.
そして、ピストンリングの内周の対称位置に配置する一
対のビンを反対方向に動かしてピストンリングを拡げ、
剥離又はクランク発生までの拡げ量と溶射皮膜の残留量
を調べた。Then, by moving a pair of bottles arranged at symmetrical positions on the inner circumference of the piston ring in opposite directions, the piston ring is expanded.
The amount of expansion until peeling or cranking occurred and the amount of remaining thermal spray coating were investigated.
下地溶射材と表層部の溶射材は上記ねしりテストで用い
たものと同一である。なお、Ｍｏの粒度は４４μｍ以上
で１２５μｍ未満、Ｎｉ自溶性合金の粒度は１０μｍ以
上で６４μｍ未満のものを使用した。The base sprayed material and the surface sprayed material were the same as those used in the above-mentioned sagging test. The grain size of Mo was 44 μm or more and less than 125 μm, and the grain size of Ni self-fluxing alloy was 10 μm or more and less than 64 μm.
結果を表３に示す。The results are shown in Table 3.
（以下余白〉
表３
上記のように、下地溶射皮膜を設けないものは母材面で
、下地溶射皮膜がＮｉ−５％Ａ１のものは下地溶射皮膜
内で剥離するが、本発明のものは単なるクランク発生の
みで、剥離しない。(Leaves below) Table 3 As shown above, those without a base sprayed coating peel off on the base material surface, and those with a base sprayed coating of Ni-5%A1 peel within the base sprayed coating, but those of the present invention It only generates a crank and does not peel off.
なお、下地溶射皮膜の厚さが２０μｍ未満であると、下
地溶射皮膜の粗さが不充分となり、１００μｍを越える
と、溶射皮膜全体に占める下地溶射皮膜の割合が多くな
って耐久性が劣るようになる。If the thickness of the base thermal sprayed coating is less than 20 μm, the roughness of the base sprayed coating will be insufficient, and if it exceeds 100 μm, the ratio of the base thermal sprayed coating to the entire thermal sprayed coating will increase, resulting in poor durability. become.
第１図はピストンリングの外周面に溶射皮膜を形成した
ものを示す、即ち、ピストンリング母材１が球状黒鉛鋳
鉄よりなるピストンリングの外周面に浅い凹溝２を全周
にわたって形成し、母材面を粗さ２０μｍＲＺにブラス
ト加工した後、その溝２内に下記に示す下地溶射材をプ
ラズマ溶射して、溝２内の全表面に下地溶射皮膜３を厚
さ６０μｍ設け、その後下記に示す表層部の溶射材を溝
２内にプラズマ溶射して、下地溶射皮Ｗｉ！３上に表層
部の溶射皮膜４を厚さＬ５０μｍ設け、所定の仕上加工
を施して形成したものである。Fig. 1 shows a piston ring with a thermally sprayed coating formed on its outer circumferential surface. In other words, a piston ring base material 1 is made of spheroidal graphite cast iron, and shallow grooves 2 are formed over the entire circumference of the piston ring. After blasting the material surface to a roughness of 20 μm RZ, a base thermal spraying material shown below was plasma sprayed into the groove 2 to provide a base thermal spray coating 3 with a thickness of 60 μm on the entire surface within the groove 2, and then the following Plasma spray the thermal spray material on the surface layer into the groove 2, and make the base thermal spray coating Wi! A thermal sprayed coating 4 on the surface layer 3 with a thickness L of 50 μm was formed by performing a predetermined finishing process.
下地溶射材：Ｍｏ ７０重量％Ｎｉ自溶性
合金 ３０重量％
（ＪＩＳ ＭＳＦＮｉ−２相当材）
表層部の溶射材：高Ｃｒ鋳鉄 ５０重量％Ｍｏ
３０重量％
Ｎｉ自溶性合金 ２０重量％
（ＪＩＳ ＭＳＦＮｉ−２相当材）
ピストンリング母材は上記では球状黒鉛鋳鉄を使用した
が、勿論これに限ることはなく、他の鋳鉄あるいは鋼を
適宜使用すればよい。Base sprayed material: Mo 70% by weight Ni self-fluxing alloy 30% by weight (JIS MSFNi-2 equivalent material) Surface sprayed material: High Cr cast iron 50% by weight Mo
30% by weight Ni self-fusing alloy 20% by weight (JIS MSFNi-2 equivalent material) Although spheroidal graphite cast iron was used as the piston ring base material in the above example, it is of course not limited to this, and other cast iron or steel may be used as appropriate. Bye.
また、表層部の溶射材としては、上記に限らず、この他
例えば下記に示すもの等を使用するのがよい。Further, the thermal spraying material for the surface layer portion is not limited to those mentioned above, but it is also preferable to use, for example, those shown below.
高Ｃフェロクロム合金 ７０重量％
Ｍｏ ９重量％
Ｎｉ自溶性合金 ２１重量％
（ＪＩＳ ＭＳＦＮｉ−２相当材）
ＭＯの粒度は４４μｍ以上で１２５μｍ未満、Ｎｆ自溶
性合金のね度は１０μｍ以上で６４μｍ未満のものを使
用した。High C ferrochrome alloy 70% by weight Mo 9% by weight Ni self-fusing alloy 21% by weight (JIS MSFNi-2 equivalent material) The grain size of MO is 44 μm or more and less than 125 μm, and the thickness of Nf self-fusing alloy is 10 μm or more and less than 64 μm. I used something.
なお、下地溶射皮膜の厚さは３０〜８０μｍが特に好ま
しい。In addition, the thickness of the base thermal spray coating is particularly preferably 30 to 80 μm.
以上説明したように本発明によれば、耐摩耗性、耐焼付
性にすぐれるとともに、ピストンリング母材及び表層部
の溶射皮膜との密着性にすぐれ、耐剥離強度の高い下地
溶射皮膜を備えた溶射ピストンリングとなる。As explained above, according to the present invention, the base thermal sprayed coating has excellent wear resistance and seizure resistance, has excellent adhesion to the piston ring base material and the thermal sprayed coating on the surface layer, and has high peeling resistance. It becomes a thermally sprayed piston ring.
第１図は本発明の一実施例を示すピストンリングの一部
分の縦断面図、第２図はその要部拡大図、第３図は母材
との密着性テストの結果を示す図である。
１はピストンリング母材、２は凹溝、３は下地溶射皮膜
、４は表層部の溶射皮膜。FIG. 1 is a vertical sectional view of a portion of a piston ring showing an embodiment of the present invention, FIG. 2 is an enlarged view of the main part thereof, and FIG. 3 is a view showing the results of an adhesion test with a base material. 1 is the piston ring base material, 2 is the groove, 3 is the base sprayed coating, and 4 is the surface sprayed coating.
Claims (2)
皮膜を備えるピストンリングにおいて、前記下地溶射皮
膜が、粒度４４μｍ以上で１２５μｍ未満のＭｏ６０〜
８０重量％と、粒度１０μｍ以上で６４μｍ未満のＮｉ
自溶性合金２０〜４０重量％との溶射材からなり、かつ
その皮膜厚さが２０〜１００μｍであることを特徴とす
るピストンリング。(1) In a piston ring having a surface sprayed coating on a base sprayed coating formed on the outer peripheral surface, the base sprayed coating has a particle size of 44 μm or more and less than 125 μm of Mo60 to
80% by weight and Ni with a particle size of 10 μm or more and less than 64 μm
A piston ring comprising a thermal sprayed material containing 20 to 40% by weight of a self-fusing alloy, and having a coating thickness of 20 to 100 μm.
．５〜２．５％、Ｓｉ２．０〜３．５％、Ｃ０．５％以
下、Ｆｅ４％以下、Ｃｏ１％以下、Ｎｉ残部からなるこ
とを特徴とする請求項１記載のピストンリング。(2) Ni self-fusing alloy has a weight ratio of 9 to 11% Cr and B1
．． 2. The piston ring according to claim 1, comprising: 5% to 2.5%, Si 2.0% to 3.5%, C 0.5% or less, Fe 4% or less, Co 1% or less, and the remainder Ni.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2057246A JP2559283B2 (en) | 1990-03-08 | 1990-03-08 | piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2057246A JP2559283B2 (en) | 1990-03-08 | 1990-03-08 | piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03260474A true JPH03260474A (en) | 1991-11-20 |
| JP2559283B2 JP2559283B2 (en) | 1996-12-04 |
Family
ID=13050176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2057246A Expired - Fee Related JP2559283B2 (en) | 1990-03-08 | 1990-03-08 | piston ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2559283B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020053A (en) * | 1999-07-07 | 2001-01-23 | Dai Ichi High Frequency Co Ltd | Corrosion resistant coating and method of forming the same |
| WO2010098382A1 (en) | 2009-02-26 | 2010-09-02 | 日本ピストンリング株式会社 | Piston ring |
| EP2413006A1 (en) | 2010-07-29 | 2012-02-01 | Nippon Piston Ring Co., Ltd. | Piston ring |
| JP2016102233A (en) * | 2014-11-28 | 2016-06-02 | 日本ピストンリング株式会社 | Piston ring and manufacturing method of the same |
| JP2018165402A (en) * | 2017-03-28 | 2018-10-25 | 日本ピストンリング株式会社 | Piston ring and manufacturing method therefor |
| JP2019524997A (en) * | 2016-07-13 | 2019-09-05 | エリコン メテコ アクチェンゲゼルシャフト、ヴォーレン | Cylinder bore coating that does not pre-activate the surface |
-
1990
- 1990-03-08 JP JP2057246A patent/JP2559283B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020053A (en) * | 1999-07-07 | 2001-01-23 | Dai Ichi High Frequency Co Ltd | Corrosion resistant coating and method of forming the same |
| WO2010098382A1 (en) | 2009-02-26 | 2010-09-02 | 日本ピストンリング株式会社 | Piston ring |
| CN102325918A (en) * | 2009-02-26 | 2012-01-18 | 日本活塞环株式会社 | Piston ring |
| EP2413006A1 (en) | 2010-07-29 | 2012-02-01 | Nippon Piston Ring Co., Ltd. | Piston ring |
| JP2016102233A (en) * | 2014-11-28 | 2016-06-02 | 日本ピストンリング株式会社 | Piston ring and manufacturing method of the same |
| JP2019524997A (en) * | 2016-07-13 | 2019-09-05 | エリコン メテコ アクチェンゲゼルシャフト、ヴォーレン | Cylinder bore coating that does not pre-activate the surface |
| JP2018165402A (en) * | 2017-03-28 | 2018-10-25 | 日本ピストンリング株式会社 | Piston ring and manufacturing method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2559283B2 (en) | 1996-12-04 |
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