JP2000240657A - Slide bearing - Google Patents
Slide bearingInfo
- Publication number
- JP2000240657A JP2000240657A JP11331590A JP33159099A JP2000240657A JP 2000240657 A JP2000240657 A JP 2000240657A JP 11331590 A JP11331590 A JP 11331590A JP 33159099 A JP33159099 A JP 33159099A JP 2000240657 A JP2000240657 A JP 2000240657A
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- bearing
- volume
- soft metal
- metal
- 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.)
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Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、すべり軸受、特
に、軸受メタル層をコーティング層により被覆したすべ
り軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plain bearing, and more particularly to a plain bearing in which a bearing metal layer is covered with a coating layer.
【０００２】[0002]
【従来の技術】銅合金やアルミニウム合金などの軸受メ
タル層に、樹脂をベースとするコーティング層で被覆し
たすべり軸受は、例えば特開昭５８ー１０８２９９号公
報に開示されている。この発明では、アルミニウム合金
軸受メタル層を被覆するコーティング層をフェノール樹
脂やエポキシ樹脂などの熱硬化性樹脂にグラファイトや
二硫化モリブデンなどの固体潤滑剤を含有させて、非焼
付性の向上を図っている。2. Description of the Related Art A plain bearing in which a bearing metal layer such as a copper alloy or an aluminum alloy is coated with a resin-based coating layer is disclosed in, for example, Japanese Patent Application Laid-Open No. 58-108299. In the present invention, the coating layer covering the aluminum alloy bearing metal layer is made of a thermosetting resin such as a phenol resin or an epoxy resin, and contains a solid lubricant such as graphite or molybdenum disulfide to improve non-seizure properties. I have.
【０００３】また、特開平４ー８３９１４号公報には、
コーティング層を二硫化モリブデンなどの固体潤滑剤に
これらの結合材としてポリイミド樹脂を添加することに
よって、潤滑性を向上した発明を開示している。また、
酸化クロムや酸化アルミニウムなどの硬質粒子を添加し
て耐摩耗性を向上した例も示している。[0003] Also, JP-A-4-83914 discloses that
It discloses an invention in which a coating layer is added to a solid lubricant such as molybdenum disulfide or the like as a binder to add a polyimide resin to improve lubricity. Also,
An example in which hard particles such as chromium oxide and aluminum oxide are added to improve wear resistance is also shown.
【０００４】さらに、特開平１０ー３７９６２号公報で
は、樹脂と固体潤滑剤に添加する硬質粒子を球形の粒子
とすることによって耐摩耗性が向上するとしている。Further, Japanese Patent Application Laid-Open No. Hei 10-37962 states that wear resistance is improved by forming spherical hard particles to be added to the resin and the solid lubricant.
【０００５】[0005]
【発明が解決しようとする課題】近年の内燃機関の高出
力及び高回転により、すべり軸受はより過酷な条件で使
用されるようになっており、さらに高い品質のすべり軸
受が要望されている。ここで、上述した従来技術に示さ
れるように、ベース樹脂の熱硬化性樹脂に固体潤滑剤を
添加したコーティング層では、摩擦係数の向上を図るこ
とができるが、反面耐摩耗性が低下してしまう。また、
硬質粒子を添加すると、耐摩耗性を向上することができ
るが非焼付性が低下してしまう。このように、すべり軸
受に要求される摩擦係数、耐摩耗性及び非焼付性の全て
に優れたコーティング層とすることができないために、
これらのバランスを図ったすべり軸受とされていた。そ
して、固体潤滑剤や硬質粒子の組成を調整するだけで
は、これらの性質をさらに向上するには限界があった。Due to the recent high output and high speed of the internal combustion engine, the sliding bearings have been used under more severe conditions, and a higher quality sliding bearing has been demanded. Here, as shown in the above-mentioned prior art, in a coating layer obtained by adding a solid lubricant to a thermosetting resin of a base resin, it is possible to improve the friction coefficient, but on the other hand, the wear resistance is reduced. I will. Also,
When hard particles are added, abrasion resistance can be improved, but non-seizure properties decrease. As described above, it is not possible to form a coating layer excellent in all of the friction coefficient, abrasion resistance and non-seizure properties required for a plain bearing,
The bearing was considered to balance these. Further, merely adjusting the compositions of the solid lubricant and the hard particles has a limit in further improving these properties.
【０００６】発明者等は、コーティング層を熱硬化性樹
脂に軟質金属粒子を添加することによって、摩擦係数、
耐摩耗性及び非焼付性を一段と向上できることを見出し
て、この発明を完成した。[0006] The present inventors have proposed that a coating layer is formed by adding soft metal particles to a thermosetting resin to thereby obtain a coefficient of friction,
The inventors have found that the wear resistance and the anti-seizure property can be further improved, and completed the present invention.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明では、軸
受メタル層をコーティング層により被覆したすべり軸受
において、コーティング層が熱硬化性樹脂のベース樹脂
に０．１〜１０容量％の軟質金属粒子を分散している。According to the first aspect of the present invention, in a plain bearing in which a bearing metal layer is coated with a coating layer, the coating layer is formed of a 0.1 to 10% by volume soft metal in a thermosetting resin base resin. Particles are dispersed.
【０００８】軸受メタル層には、銅系合金やアルミニウ
ム系合金などの公知の軸受メタルを使用することがで
き、耐荷重性や耐摩耗性などの目的に応じて適宜選択す
ることができる。For the bearing metal layer, a known bearing metal such as a copper-based alloy or an aluminum-based alloy can be used, and it can be appropriately selected according to purposes such as load resistance and wear resistance.
【０００９】コーティング層のベース樹脂としては、軟
質金属との結合力が大きく、また製造上加熱することに
よって硬化することができることからポリイミド系樹
脂、エポキシ樹脂、フェノール樹脂などの熱硬化性樹脂
を使用する。ポリイミド系樹脂としては、ポリアミドイ
ミド、ポリアミノ・ビス・マレイミド、またはこれらの
ジイソシアネート変性、ＢＰＤＡ変性、スルホン変性樹
脂などが挙げられる。特に、ポリアミドイミド樹脂（以
下、ＰＡＩという。）などの耐疲労性が高い樹脂が望ま
しい。このＰＡＩは、主鎖中にアミド結合とイミド結合
が交互に結合している高分子をいい、変性ポリアミドイ
ミド樹脂も含む。As the base resin for the coating layer, a thermosetting resin such as a polyimide resin, an epoxy resin, or a phenol resin is used because it has a large bonding force with a soft metal and can be cured by heating in production. I do. Examples of the polyimide resin include polyamideimide, polyaminobismaleimide, and diisocyanate-modified, BPDA-modified, and sulfone-modified resins thereof. In particular, a resin having high fatigue resistance such as a polyamideimide resin (hereinafter, referred to as PAI) is desirable. The PAI refers to a polymer in which an amide bond and an imide bond are alternately bonded in a main chain, and also includes a modified polyamideimide resin.
【００１０】本明細書中における軟質金属とは、ベース
樹脂よりも硬く、硬度がＨｖ６０以下の軟らかい金属を
意味する。そしてこれら軟質金属は、熱伝導性が高く、
純金属の他、合金をも含む概念である。ベース樹脂より
も硬い軟質金属粒子によって、耐摩耗性の向上が図られ
るとともに、高い熱放散性による非焼付き性の向上が得
られる。具体的には、銅、銀、金、アルミニウム、ス
ズ、亜鉛、インジウムなど、および、これらの合金を意
味する。硬度Ｈｖ６０を越える硬い金属、例えばモリブ
デン、ニッケル、鉄などでは、耐摩耗性は向上するが非
焼付性が低下し相手材に対するアタック性が高くなり、
妥当でない。[0010] In the present specification, a soft metal means a soft metal that is harder than the base resin and has a hardness of Hv60 or less. And these soft metals have high thermal conductivity,
The concept includes not only pure metals but also alloys. The soft metal particles that are harder than the base resin not only improve the wear resistance, but also improve the non-seizure property due to high heat dissipation. Specifically, it means copper, silver, gold, aluminum, tin, zinc, indium and the like, and alloys thereof. In the case of a hard metal having a hardness of more than Hv60, for example, molybdenum, nickel, iron, etc., the wear resistance is improved, but the non-seizure property is reduced and the attack property to the mating material is increased,
Not valid.
【００１１】また、軟質金属粒子が銅、銀、スズ、亜鉛
などの硫化しやすい易硫化金属からなることが望ましい
（請求項２）。軟質金属粒子の内、易硫化金属では潤滑
油中に含まれる硫黄と反応して、粒子表面に潤滑性の優
れた硫化物薄膜を形成し、さらに摩擦係数が小さくな
る。Further, it is desirable that the soft metal particles are made of an easily sulfided metal such as copper, silver, tin and zinc (claim 2). Among the soft metal particles, the easily sulfided metal reacts with the sulfur contained in the lubricating oil to form a sulfide thin film having excellent lubricity on the particle surface, and the friction coefficient is further reduced.
【００１２】軟質金属の粒子径は、薄膜のコーティング
層中に分散している必要があり、５μｍ以下であること
が望ましく、取り扱いが容易な０．０５〜３μｍのもの
が望ましい。軟質金属の添加量は、０．１〜１０容量％
とする。０．１容量％未満では、添加した効果が十分に
得られない。また、１０容量％を越えると、コーティン
グが困難になる。特に０．５〜５容量％が望ましい。The particle size of the soft metal must be dispersed in the coating layer of the thin film, is preferably 5 μm or less, and is preferably 0.05 to 3 μm which is easy to handle. The addition amount of the soft metal is 0.1 to 10% by volume.
And If it is less than 0.1% by volume, the added effect cannot be sufficiently obtained. If it exceeds 10% by volume, coating becomes difficult. In particular, 0.5 to 5% by volume is desirable.
【００１３】また、コーティング層には、８０容量％以
下の固体潤滑剤を添加することができる（請求項３）。
固体潤滑剤を含有すると、さらに摩擦係数が小さくな
る。固体潤滑剤としては、ポリテトラフルオロエチレン
（ＰＴＦＥ）などの樹脂やグラファイト（Ｇｒ）、二硫
化モリブデン（ＭｏＳ２）、硫化銅（ＣｕＳ）、硫化ス
ズ（ＳｎＳ）などの金属硫化物の一種又は二種以上を用
いることができる。これらの含有量が８０容量％を越え
ると耐摩耗性が低下する。Further, the coating layer may contain up to 80% by volume of a solid lubricant.
When a solid lubricant is contained, the coefficient of friction is further reduced. Examples of the solid lubricant include resins such as polytetrafluoroethylene (PTFE) and one or two types of metal sulfides such as graphite (Gr), molybdenum disulfide (MoS 2 ), copper sulfide (CuS), and tin sulfide (SnS). More than one species can be used. If these contents exceed 80% by volume, the wear resistance is reduced.
【００１４】コーティング層に、５容量％以下の硬質粒
子を添加して耐摩耗性を向上することができる（請求項
４）。硬質粒子としては、酸化物（Ａｌ２Ｏ３、ＣｏＯ
ーＡｌ２Ｏ３など）、窒化物（ＴｉＮ、Ｓｉ３Ｎ４な
ど）、炭化物（ＳｉＣ、ＴｉＣ、ＷＣなど）、フッ化物
（ＣａＦ２、ＮａＦなど）、硬質金属（Ｎｉ、Ｍｏ、Ｆ
ｅなど）等の硬度の高い物質の一種又は二種以上を用い
ることができる。５容量％を越えると、非焼付性が低下
し、相手材に対するアタック性が高くなる。The wear resistance can be improved by adding 5% by volume or less of hard particles to the coating layer. As the hard particles, oxides (Al 2 O 3 , CoO
Such as over Al 2 O 3), nitrides (TiN, etc. Si 3 N 4), carbides (SiC, TiC, WC, etc.), fluorides (such as CaF 2, NaF), hard metal (Ni, Mo, F
One or more kinds of substances having high hardness such as e) can be used. If the content exceeds 5% by volume, the non-seizure property decreases, and the attack property against the counterpart material increases.
【００１５】これらの硬質粒子は、０．０５〜５μｍ程
度の粒子径のものが使用されるが、薄いコーティング層
中に分散して含有されていることが望ましく、望ましく
は０．１〜３μｍの細かい粒子を使用する。なお、軟質
金属、固体潤滑剤および硬質粒子の含有量の合計は、過
剰に含まれるとコーティング層が脆化して剥離しやすく
なることから、これらの総量を９０容量％以下とするこ
とが望ましい。These hard particles have a particle size of about 0.05 to 5 μm, but are preferably dispersed and contained in a thin coating layer, preferably 0.1 to 3 μm. Use fine particles. The total content of the soft metal, the solid lubricant and the hard particles is desirably 90% by volume or less, because if the content is excessive, the coating layer becomes brittle and easily peels off.
【００１６】上述した組成のコーティング層の厚さは、
２〜３０μｍ程度が望ましい。２μｍ未満では、十分な
初期なじみ性に欠け、摩耗に対して耐久性が十分でなく
なる。一方、３０μｍを越えるとコーティング層の剥離
を生じやすくなり、また樹脂層の厚さが厚くなるに従っ
て熱放散性が低下する。これらのバランスから３〜２０
μｍのものが望ましい。The thickness of the coating layer having the above composition is as follows:
About 2 to 30 μm is desirable. If it is less than 2 μm, sufficient initial conformability is lacking, and durability against abrasion is not sufficient. On the other hand, if it exceeds 30 μm, the coating layer is apt to peel off, and the heat dissipation property decreases as the thickness of the resin layer increases. From these balances, 3-20
μm is desirable.
【００１７】[0017]
【発明の効果】請求項１の発明では、軸受メタル層をコ
ーティング層により被覆したすべり軸受において、コー
ティング層が熱硬化性樹脂のベース樹脂に０．１〜１０
容量％の軟質金属粒子を分散していることにより、摩擦
係数、耐摩耗性及び非焼付性に優れたすべり軸受にする
ことができる。According to the first aspect of the present invention, in a plain bearing in which a bearing metal layer is coated with a coating layer, the coating layer is applied to the base resin of the thermosetting resin in an amount of 0.1 to 10%.
By dispersing the soft metal particles by volume%, a sliding bearing excellent in friction coefficient, wear resistance and anti-seizure property can be obtained.
【００１８】請求項２の発明では、請求項１の発明にお
いて、軟質金属粒子が易硫化金属としていることによ
り、特に潤滑油に硫黄分を含有する場合には、更に摩擦
係数の小さいすべり軸受にすることができる。According to a second aspect of the present invention, in the first aspect of the invention, since the soft metal particles are made of an easily sulfided metal, especially when the lubricating oil contains sulfur, the sliding bearing has a smaller friction coefficient. can do.
【００１９】請求項３の発明では、請求項１、２の発明
に加えて、８０容量％以下の固体潤滑剤を含有している
ことにより、さらに摩擦係数の小さいすべり軸受にする
ことができる。According to the third aspect of the present invention, in addition to the first and second aspects of the present invention, by containing not more than 80% by volume of a solid lubricant, a sliding bearing having a smaller friction coefficient can be obtained.
【００２０】請求項４の発明では、請求項１〜３の発明
に加えて、５容量％以下の硬質粒子を含有していること
により、さらに耐摩耗性に優れたすべり軸受にすること
ができる。According to the fourth aspect of the present invention, in addition to the first to third aspects of the present invention, by containing 5% by volume or less of hard particles, a plain bearing having more excellent wear resistance can be obtained. .
【００２１】[0021]
【発明の実施の形態】以下、この発明を実施例及び比較
例に基づいて詳細に説明する。裏金になる鋼板（ＳＰＥ
Ｓ）の上に、軸受メタルの粉末を散布し、還元雰囲気炉
内で焼結し、その後にロール間で圧延した。これを二回
繰り返してバイメタルを得た。得られたバイメタルの板
厚は、総板厚１．６ｍｍ、軸受メタル層の厚さが０．３
５ｍｍであった。このようにして得られたバイメタルを
外径２７．２ｍｍ、内径２２ｍｍのスラストワッシャに
切断して試験片を作成した。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on examples and comparative examples. Backing steel plate (SPE
On top of S), bearing metal powder was sprayed, sintered in a reducing atmosphere furnace, and then rolled between rolls. This was repeated twice to obtain a bimetal. The thickness of the obtained bimetal was 1.6 mm in total thickness and 0.3 mm in the thickness of the bearing metal layer.
5 mm. The bimetal thus obtained was cut into a thrust washer having an outer diameter of 27.2 mm and an inner diameter of 22 mm to prepare a test piece.
【００２２】軸受メタルとしては、銅系合金（５重量％
Ｐｂ，１１重量％Ｓｎ，残Ｃｕ）とアルミニウム系合金
（１２重量％Ｓｎ，３重量％Ｓｉ，残Ａｌ）の２種類に
ついて試験を行った。なお、表１及び表２において、軸
受メタルの欄に記載している、Ｃｕ，Ａｌは、それぞれ
この合金組成の軸受メタルを示している。As the bearing metal, a copper alloy (5% by weight)
The test was conducted on two types of Pb, 11 wt% Sn, residual Cu) and an aluminum alloy (12 wt% Sn, 3 wt% Si, residual Al). In Tables 1 and 2, Cu and Al described in the column of bearing metal indicate bearing metals having this alloy composition, respectively.
【００２３】これら試験片に対して、脱脂、酸洗いの前
処理を施した後、軸受メタル表面に下記の各樹脂液をス
プレーした。コーティング層のベース樹脂として熱硬化
性樹脂のＰＡＩを選択した。ＰＡＩは、アモコ社製ＡＩ
１０（商品名）を使用した。また他の熱硬化性樹脂の適
用を知るために、エポキシ樹脂（ＥＰ）についても試験
を行った。ＥＰは、東芝ケミカル社製ケミタイトＣＴ４
３０（商品名）を使用した。Each of these test pieces was subjected to a pretreatment of degreasing and pickling, and then the following resin liquid was sprayed on the surface of the bearing metal. PAI, a thermosetting resin, was selected as the base resin for the coating layer. PAI is AI made by Amoko
10 (trade name) was used. In order to know the application of other thermosetting resins, a test was also performed on an epoxy resin (EP). EP is Chemitite CT4 manufactured by Toshiba Chemical Corporation.
30 (trade name) was used.
【００２４】軟質金属粒子として、平均粒子径０．３μ
ｍのＡｇ、Ｃｕ、Ｓｎ、Ａｌを選択した。固体潤滑剤と
して、二硫化モリブデン（ＭｏＳ２）、グラファイト
（Ｇｒ）、ポリテトラフルオロエチレン（ＰＴＦＥ）、
硫化銅（ＣｕＳ）及び硫化スズ（ＳｎＳ）を選択した。
硬質粒子は、窒化珪素（Ｓｉ３Ｎ４）、複合酸化物のＣ
ｏーＡｌ２Ｏ３及び金属ニッケルを選択した。The soft metal particles have an average particle diameter of 0.3 μm.
Ag, Cu, Sn, and Al were selected. Molybdenum disulfide (MoS 2 ), graphite (Gr), polytetrafluoroethylene (PTFE),
Copper sulfide (CuS) and tin sulfide (SnS) were selected.
The hard particles are silicon nitride (Si 3 N 4 ), a composite oxide C
o-Al 2 O 3 and metallic nickel were selected.
【００２５】これらを表１、表２に示すコーティング層
の組成になるように配合し、ＮＭＰに分散した樹脂液を
作成した。この樹脂液を軸受メタル表面にスプレーし、
その後に、１２０゜Ｃで乾燥、軸受メタルがＣｕ合金の
場合には２５０゜Ｃ、Ａｌ合金の場合には１８０゜Ｃで
焼成した。これにより厚さがほぼ２０μｍのコーティン
グ層を形成した。得られた試験片の各実施例、比較例に
ついて、摩擦係数、摩耗量及び焼付の試験を行った。These were blended so as to have the composition of the coating layer shown in Tables 1 and 2, and a resin solution dispersed in NMP was prepared. Spray this resin liquid on the bearing metal surface,
Thereafter, drying was performed at 120 ° C. and firing was performed at 250 ° C. when the bearing metal was a Cu alloy and at 180 ° C. when the bearing metal was an Al alloy. As a result, a coating layer having a thickness of about 20 μm was formed. With respect to each of the examples and the comparative examples of the obtained test pieces, tests of a coefficient of friction, a wear amount, and seizure were performed.
【００２６】[0026]
【表１】 [Table 1]
【００２７】[0027]
【表２】 [Table 2]
【００２８】摩擦係数及び摩耗量については、鈴木式試
験機により、表３の試験条件により行い、表１、２に示
す結果が得られた。また、焼付試験は、鈴木式試験機で
表４の試験条件により行い、表１、２に示す結果が得ら
れた。なお、潤滑油として硫黄濃度が０．１重量％の硫
黄濃度の低い潤滑油（ＳＡＥ３０）を使用した。The coefficient of friction and the amount of wear were measured by a Suzuki tester under the test conditions shown in Table 3, and the results shown in Tables 1 and 2 were obtained. The baking test was performed using a Suzuki-type testing machine under the test conditions shown in Table 4, and the results shown in Tables 1 and 2 were obtained. A lubricating oil (SAE30) having a low sulfur concentration of 0.1% by weight was used as the lubricating oil.
【００２９】[0029]
【表３】 [Table 3]
【００３０】[0030]
【表４】 [Table 4]
【００３１】表１に示す、摩擦係数、摩耗量及び焼付荷
重に関する試験結果から、以下のことが判明した。コー
ティング層により被覆していない軸受メタルを露出して
いる比較例１、２と、ＰＡＩ、ＥＰが１００％のコーテ
ィング層を形成した比較例３、４とを対比すると、焼付
荷重が向上しているのに対して摩耗量は増大している。From the test results shown in Table 1 regarding the coefficient of friction, the amount of wear and the seizure load, the following was found. Compared with Comparative Examples 1 and 2 in which the bearing metal not covered by the coating layer is exposed and Comparative Examples 3 and 4 in which a coating layer having 100% PAI and EP is formed, the seizure load is improved. However, the amount of wear has increased.
【００３２】さらに、コーティング層に固体潤滑剤であ
る二硫化モリブデンを添加した比較例５〜７では、その
添加量が多くなるに従って、摩擦係数が低下し、焼付荷
重も大きくなるが、反面、摩耗量が多くなっている。ま
た、コーティング層に硬質粒子であるニッケル粒子を単
独で５容量％添加した比較例８では、比較例３との対比
において、摩耗量は少なくなるが、焼付荷重が低下して
いる。Further, in Comparative Examples 5 to 7 in which molybdenum disulfide as a solid lubricant was added to the coating layer, as the amount of addition increased, the coefficient of friction decreased and the seizure load increased. The amount is increasing. In Comparative Example 8 in which nickel particles, which are hard particles, alone were added to the coating layer in an amount of 5% by volume, the amount of wear was smaller than that of Comparative Example 3, but the seizure load was lower.
【００３３】一方、コーティング層に銅の軟質金属粒子
を０．５、１、５、９容量％添加した実施例１〜４で
は、その添加量が多くなるに従って、摩擦係数および摩
耗量が低下し、焼付荷重も大きくなっていた。特に銅を
９容量％添加した実施例４では、摩擦係数が０．０８、
摩耗量が３μｍ、焼付荷重が２４ＭＰａの優れた値を示
した。なお、軸受メタルをアルミニウム合金とした実施
例１０においても銅合金の実施例２と同じ摩擦係数、摩
耗量および焼付荷重の値を示した。また、軟質金属粒子
として銀、スズを添加した実施例５〜７についても、摩
擦係数および摩耗量が低下し、焼付荷重も大きくなって
いる。On the other hand, in Examples 1 to 4 in which 0.5, 1, 5, and 9% by volume of copper soft metal particles were added to the coating layer, as the amount of addition increased, the coefficient of friction and the amount of wear decreased. And the seizure load was also large. In particular, in Example 4 in which 9% by volume of copper was added, the coefficient of friction was 0.08,
The abrasion amount was 3 μm, and the seizure load was an excellent value of 24 MPa. In Example 10 in which the bearing metal was an aluminum alloy, the same values of the friction coefficient, wear amount, and seizure load as those in Example 2 of the copper alloy were shown. Also, in Examples 5 to 7 in which silver and tin were added as soft metal particles, the coefficient of friction and the amount of wear decreased, and the seizure load also increased.
【００３４】なお、軟質金属粒子としてアルミニウム粒
子を添加した実施例１１〜１３では、摩擦係数及び摩耗
量が低下し、焼付荷重も大きくなっていた。この理由と
して、アルミニウム、銅、銀などの軟質金属は、樹脂よ
りも硬く耐摩耗性が向上し、また、高い熱伝導性による
熱の放散がよいために、焼付荷重が高くなるものと思料
される。In Examples 11 to 13 in which aluminum particles were added as soft metal particles, the coefficient of friction and the amount of wear decreased, and the seizure load also increased. The reason for this is that soft metals such as aluminum, copper, and silver are harder than resins and have improved abrasion resistance.In addition, heat dissipation due to high thermal conductivity is good, so that the seizure load is considered to be high. You.
【００３５】表２に示す実施例１４〜２９は、軟質金属
粒子を添加し、さらに固体潤滑剤や硬質粒子を添加した
例であって、いずれもそれぞれを添加した改善効果が得
られている。特に実施例２６、実施例２９は、３容量％
Ｃｕ、４０容量％二硫化モリブデン、２０容量％グラフ
ァイト、３容量％硫化銅、３容量％窒化ケイ素の組成か
らなるコーティング層の例であって、摩擦係数、摩耗量
及び焼付荷重の全てについて最も優れていた。Examples 14 to 29 shown in Table 2 are examples in which soft metal particles were added, and further solid lubricants and hard particles were added, and the improvement effect of each addition was obtained. In particular, in Examples 26 and 29, 3% by volume was used.
This is an example of a coating layer composed of Cu, 40% by volume molybdenum disulfide, 20% by volume graphite, 3% by volume copper sulfide, and 3% by volume silicon nitride, and is the most excellent in all of friction coefficient, abrasion amount and seizure load. I was
【００３６】次に、硫黄を含有する潤滑油を使用する条
件下で使用されるすべり軸受を想定し、表１，表２に示
す実施例及び比較例の各試験片について、硫黄濃度が
０．３重量％と硫黄濃度の高い潤滑油（ＳＡＥ１０Ｗー
３０）を使用し、他の試験条件が同じ条件で試験を行っ
た。この結果を表５，表６に示す。Next, assuming a sliding bearing to be used under the condition that a sulfur-containing lubricating oil is used, the sulfur concentration of each of the test pieces of Examples and Comparative Examples shown in Tables 1 and 2 was set to 0.1%. The test was performed using a lubricating oil having a high sulfur concentration of 3% by weight (SAE10W-30) under the same other test conditions. The results are shown in Tables 5 and 6.
【００３７】[0037]
【表５】 [Table 5]
【００３８】[0038]
【表６】 [Table 6]
【００３９】表５、表６に示す、摩擦係数、摩耗量及び
焼付荷重に関する試験結果から、以下のことが判明し
た。軟質金属として易硫化金属であるＡｇ、Ｃｕ、Ｓｎ
を添加した実施例１〜１０では、硫黄濃度の低い潤滑油
を使用した場合と比較して摩擦係数、摩耗量、焼付荷重
のいずれにおいてもその性能に優れていた。一方、軟質
金属として易硫化金属でないＡｌを添加した実施例１１
〜１３では、摩擦係数、摩耗量、焼付荷重のいずれにお
いても大きな変化が見られていない。From the test results shown in Tables 5 and 6 concerning the coefficient of friction, the amount of wear, and the seizure load, the following was found. Ag, Cu, Sn which is an easily sulfided metal as a soft metal
In Examples 1 to 10 in which was added, the performance was excellent in any of the friction coefficient, the wear amount, and the seizure load as compared with the case where the lubricating oil having a low sulfur concentration was used. On the other hand, Example 11 in which Al which is not easily sulfided metal was added as a soft metal.
In Nos. To 13, no significant change was observed in any of the friction coefficient, the wear amount, and the seizure load.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小野 晃 名古屋市北区猿投町２番地 大同メタル工 業株式会社内 (72)発明者 山本 康一 名古屋市北区猿投町２番地 大同メタル工 業株式会社内 (72)発明者 柴山 隆之 名古屋市北区猿投町２番地 大同メタル工 業株式会社内 Ｆターム(参考） 3J011 PA02 QA05 SB03 SB04 SC03 SC14 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akira Ono 2 Sanage-cho, Kita-ku, Nagoya-shi Inside Daido Metal Industry Co., Ltd. (72) Inventor Koichi Yamamoto 2nd Sanage-cho, Kita-ku Nagoya-shi In-house (72) Inventor Takayuki Shibayama 2 Sanage-cho, Kita-ku, Nagoya-shi Daido Metal Industry Co., Ltd. F term (reference) 3J011 PA02 QA05 SB03 SB04 SC03 SC14
Claims (4)
覆したすべり軸受において、該コーティング層が熱硬化
性樹脂のベース樹脂に０．１〜１０容量％の軟質金属粒
子を分散していることを特徴とするすべり軸受。1. A plain bearing in which a bearing metal layer is covered with a coating layer, wherein the coating layer has 0.1 to 10% by volume of soft metal particles dispersed in a base resin of a thermosetting resin. Sliding bearing.
特徴とする請求項１記載のすべり軸受。2. The sliding bearing according to claim 1, wherein the soft metal particles are metal sulfide.
潤滑剤を含有していることを特徴とする請求項１、２記
載のすべり軸受。3. The plain bearing according to claim 1, wherein the coating layer contains 80% by volume or less of a solid lubricant.
子を含有していることを特徴とする請求項１〜３記載の
すべり軸受。4. The plain bearing according to claim 1, wherein the coating layer contains 5% by volume or less of hard particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33159099A JP3295660B2 (en) | 1998-12-22 | 1999-11-22 | Plain bearing |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10-365184 | 1998-12-22 | ||
| JP36518498 | 1998-12-22 | ||
| JP33159099A JP3295660B2 (en) | 1998-12-22 | 1999-11-22 | Plain bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000240657A true JP2000240657A (en) | 2000-09-05 |
| JP3295660B2 JP3295660B2 (en) | 2002-06-24 |
Family
ID=26573898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33159099A Expired - Fee Related JP3295660B2 (en) | 1998-12-22 | 1999-11-22 | Plain bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3295660B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001031906A (en) * | 1999-07-23 | 2001-02-06 | Riken Corp | Coating composition for sliding member and piston ring for internal combustion engine |
| DE102008015790A1 (en) | 2007-03-26 | 2008-10-09 | Daido Metal Co. Ltd., Nagoya | bearings |
| WO2010024170A1 (en) | 2008-08-29 | 2010-03-04 | 新日本石油株式会社 | Lubricant oil composition in contact with a silver-containing material |
| JP2010151321A (en) * | 2005-04-29 | 2010-07-08 | Miba Gleitlager Gmbh | Bearing member |
| JP6256569B1 (en) * | 2016-10-31 | 2018-01-10 | 千住金属工業株式会社 | Sliding member and bearing |
| JP2021527723A (en) * | 2018-06-11 | 2021-10-14 | デュポン・東レ・スペシャルティ・マテリアル株式会社 | A composition, a coating film formed using the composition, a sliding member having the coating film, and a method for producing the same. |
-
1999
- 1999-11-22 JP JP33159099A patent/JP3295660B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001031906A (en) * | 1999-07-23 | 2001-02-06 | Riken Corp | Coating composition for sliding member and piston ring for internal combustion engine |
| JP2010151321A (en) * | 2005-04-29 | 2010-07-08 | Miba Gleitlager Gmbh | Bearing member |
| US8033733B2 (en) | 2005-04-29 | 2011-10-11 | Miba Gleitlager Gmbh | Bearing element |
| DE102008015790A1 (en) | 2007-03-26 | 2008-10-09 | Daido Metal Co. Ltd., Nagoya | bearings |
| WO2010024170A1 (en) | 2008-08-29 | 2010-03-04 | 新日本石油株式会社 | Lubricant oil composition in contact with a silver-containing material |
| US8802604B2 (en) | 2008-08-29 | 2014-08-12 | Jx Nippon Oil & Energy Corporation | Lubricating oil composition in contact with silver-containing material |
| JP6256569B1 (en) * | 2016-10-31 | 2018-01-10 | 千住金属工業株式会社 | Sliding member and bearing |
| JP2018071710A (en) * | 2016-10-31 | 2018-05-10 | 千住金属工業株式会社 | Slide member and bearing |
| JP2021527723A (en) * | 2018-06-11 | 2021-10-14 | デュポン・東レ・スペシャルティ・マテリアル株式会社 | A composition, a coating film formed using the composition, a sliding member having the coating film, and a method for producing the same. |
| JP7376513B2 (en) | 2018-06-11 | 2023-11-08 | デュポン・東レ・スペシャルティ・マテリアル株式会社 | Composition, coating formed using the same, sliding member having the coating, and manufacturing method thereof |
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|---|---|
| JP3295660B2 (en) | 2002-06-24 |
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