JPH11106779A - Solid lubricating film composition and plain bearing material using the same - Google Patents

Solid lubricating film composition and plain bearing material using the same

Info

Publication number
JPH11106779A
JPH11106779A JP9271421A JP27142197A JPH11106779A JP H11106779 A JPH11106779 A JP H11106779A JP 9271421 A JP9271421 A JP 9271421A JP 27142197 A JP27142197 A JP 27142197A JP H11106779 A JPH11106779 A JP H11106779A
Authority
JP
Japan
Prior art keywords
solid lubricating
resin
solid
vol
bearing material
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
Application number
JP9271421A
Other languages
Japanese (ja)
Inventor
Hiroshi Kanayama
弘 金山
Shinya Kawakami
真也 川上
Chiaki Gohara
千明 郷原
Taisuke Kabetani
泰典 壁谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiho Kogyo Co Ltd
Original Assignee
Taiho Kogyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taiho Kogyo Co Ltd filed Critical Taiho Kogyo Co Ltd
Priority to JP9271421A priority Critical patent/JPH11106779A/en
Publication of JPH11106779A publication Critical patent/JPH11106779A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates
    • C23C22/22—Orthophosphates containing alkaline earth metal cations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/40—Imides, e.g. polyimide [PI], polyetherimide [PEI]

Abstract

PROBLEM TO BE SOLVED: To obtain a bearing material having a high wear resistance and a good sliding property. SOLUTION: A solid lubricating film composition contains from 30 to 70 vol.% of at least one resin chosen from a polyimide resin and a polyamideimide resin having a tensile strength of 100 MPa or larger and from 30 to 70 vol.% solid lubricant (and, if required, contains from 0.3 to 10 vol.% friction controller and/or extreme-pressure agent). A plain bearing material is prepared by forming a film using the above-mentioned composition on the surface of a bearing base.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、自動車やその他の
産業機械用のエンジンにおける滑り軸受材料等に被覆形
成されて用いられる固体潤滑被膜組成物及びそれを用い
た滑り軸受材料に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid lubricating coating composition coated on a sliding bearing material or the like in engines for automobiles and other industrial machines, and a sliding bearing material using the same.

【０００２】[0002]

【従来の技術】自動車エンジンの滑り軸受材料として
は、一般にアルミニウム合金やＰｂ系オーバレイ付き銅
鉛合金が用いられており、近年は高出力及び高回転によ
る自動車エンジンの高性能化が著しく、優れた摺動性能
の軸受材料の出現が望まれている。2. Description of the Related Art Aluminum alloys and copper-lead alloys with a Pb-based overlay are generally used as sliding bearing materials for automobile engines. In recent years, the performance of automobile engines has been remarkably improved due to high output and high rotation. The emergence of bearing materials with sliding performance is desired.

【０００３】特開平４−８３９１４号公報には、アルミ
ニウム系軸受合金の表面に、９５〜５５重量％の固体潤
滑剤と、１０〜４５重量％のポリイミド系バインダーか
ら成るコーティング層を形成したすべり軸受材料が記載
されている。このような固体潤滑被膜により、アルミニ
ウム合金軸受の初期のなじみ性が向上し、優れた耐疲労
性及び耐焼付性が発揮される。更に、当該公報には、上
記固体潤滑剤の１〜２０重量％を摩擦調整剤に置き換え
ることにより、固体潤滑被膜の耐摩耗性が改良されるこ
とが記載される。JP-A-4-83914 discloses a plain bearing in which a coating layer comprising 95 to 55% by weight of a solid lubricant and 10 to 45% by weight of a polyimide-based binder is formed on the surface of an aluminum-based bearing alloy. Materials are listed. With such a solid lubricating film, the initial conformability of the aluminum alloy bearing is improved, and excellent fatigue resistance and seizure resistance are exhibited. Further, the publication describes that the wear resistance of the solid lubricating coating is improved by replacing 1 to 20% by weight of the solid lubricant with a friction modifier.

【０００４】また、特開平７−２４７４９３号公報で
は、７０〜９７重量％の固体潤滑剤と、３〜３０重量％
のバインダー（ポリイミド系樹脂、エポキシ樹脂、フェ
ノール樹脂）からなる固体潤滑被膜に、膜形成補助剤を
添加することにより、固体潤滑剤が強固に保持され、初
期のなじみ性がよいため耐焼付性が優れ、脱落が防止さ
れているため耐摩耗性が良好となることが記載されてい
る。Japanese Patent Application Laid-Open No. 7-247493 discloses that 70 to 97% by weight of a solid lubricant and 3 to 30% by weight of a solid lubricant.
By adding a film-forming auxiliary agent to a solid lubricating coating composed of a binder (polyimide resin, epoxy resin, and phenolic resin), the solid lubricant is firmly retained, and the seizure resistance is good due to good initial conformability. It is described that the abrasion resistance is excellent because the resin is excellent and is prevented from falling off.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、従来技
術における上記固体潤滑被膜では、固体潤滑剤の添加量
が５５〜９７重量％以上と多く、コーティング層内の強
度や固体潤滑剤の保持力が未だ不十分であるため、満足
すべき耐摩耗性が得られなかった。However, in the above-described solid lubricating coating in the prior art, the amount of the solid lubricant added is as large as 55 to 97% by weight, and the strength in the coating layer and the holding power of the solid lubricant still remain. Sufficient abrasion resistance was not obtained because of insufficient.

【０００６】従って、本発明は、優れた耐摩耗性及び摺
動特性を有する、固体潤滑剤及びバインダーを含有する
固体潤滑被膜組成物、及びそれを用いた滑り軸受材料を
得ることを目的とする。Accordingly, an object of the present invention is to provide a solid lubricating coating composition containing a solid lubricant and a binder and having excellent wear resistance and sliding properties, and a sliding bearing material using the same. .

【０００７】[0007]

【課題を解決するための手段】上記課題は、引張強度１
００ＭＰａ以上のポリイミド樹脂及びポリアミドイミド
樹脂から選択される少なくとも１種の樹脂３０〜７０ｖ
ｏｌ％並びに固体潤滑剤３０〜７０ｖｏｌ％を含有する
ことを特徴とする固体潤滑被膜組成物を用いることによ
り解決されることが見出された。即ち、バインダー樹脂
として、引張強度１００ＭＰａ以上という強度の高いポ
リアミドイミド樹脂を用いることにより、コーティング
膜の耐摩耗性が向上するとともに、固体潤滑剤の保持力
が増大し、固体潤滑剤等の脱落が減少し、摺動特性が向
上することが見出されたものである。Means for Solving the Problems The above-mentioned problems have a tensile strength of 1%.
At least one resin selected from the group consisting of a polyimide resin having a pressure of 00 MPa or more and a polyamideimide resin;
It has been found that the problem is solved by using a solid lubricating coating composition characterized in that the composition contains 30% to 70% by volume of a solid lubricant. That is, by using a polyamideimide resin having a high tensile strength of 100 MPa or more as the binder resin, the wear resistance of the coating film is improved, the holding power of the solid lubricant is increased, and the solid lubricant and the like fall off. They have been found to decrease and improve the sliding properties.

【０００８】更に、固体潤滑剤の０．３〜１０ｖｏｌ％
を摩擦調整剤及び極圧剤のうちの少なくとも１種で置き
換えることにより、耐摩耗性や耐焼付性が更に格段と向
上する。Further, 0.3 to 10% by volume of the solid lubricant
By replacing at least one of a friction modifier and an extreme pressure agent, the wear resistance and seizure resistance are further improved.

【０００９】本発明は、更にかかる組成物を軸受基材表
面に被覆形成したことを特徴とする滑り軸受材料に関す
るものである。The present invention further relates to a sliding bearing material characterized in that such a composition is coated on the surface of a bearing substrate.

【００１０】[0010]

【発明の実施の形態】本発明の熱硬化性樹脂は、引張強
度１００ＭＰａ以上のポリイミド樹脂及びポリアミドイ
ミド樹脂から選択される少なくとも１種の樹脂である。
具体的には、芳香族ポリイミド、芳香族ポリアミドイミ
ド、又はそのジイソシアネート変性、ＢＰＤＡ変性、ス
ルホン変性樹脂のワニスなどを使用することができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The thermosetting resin of the present invention is at least one resin selected from a polyimide resin and a polyamideimide resin having a tensile strength of 100 MPa or more.
Specifically, varnish of aromatic polyimide, aromatic polyamideimide, or a diisocyanate-modified, BPDA-modified, or sulfone-modified resin thereof can be used.

【００１１】引張強度１００ＭＰａ以上のポリイミド樹
脂及びポリアミドイミド樹脂は、架橋点密度を増やし、
分子をより密接に架橋させ、分岐度を増大させることに
より容易に得ることができる。更に、架橋前の分子の分
子量を下げるとより効果的である。その場合、耐熱性が
低下する傾向があるため、更に芳香族基を付加させるこ
とが好ましい。これにより、引張強度が高く且つ耐熱性
に優れたポリイミド樹脂、ポリアミドイミド樹脂を得る
ことができる。A polyimide resin and a polyamideimide resin having a tensile strength of 100 MPa or more increase the crosslink density,
It can be easily obtained by crosslinking the molecule more closely and increasing the degree of branching. Further, it is more effective to reduce the molecular weight of the molecule before crosslinking. In that case, since the heat resistance tends to decrease, it is preferable to further add an aromatic group. Thereby, a polyimide resin and a polyamideimide resin having high tensile strength and excellent heat resistance can be obtained.

【００１２】なお、本発明におけるポリイミド樹脂及び
ポリアミドイミド樹脂の引張強度（ＪＩＳＫ７１２７）
は、フィルム膜厚１０〜１５μｍ（幅１０ｍｍ）、引張
速度５ｍｍ／分、試験温度２５℃にて測定した値であ
る。Incidentally, the tensile strength of the polyimide resin and the polyamideimide resin in the present invention (JIS K7127)
Is a value measured at a film thickness of 10 to 15 μm (width 10 mm), a tensile speed of 5 mm / min, and a test temperature of 25 ° C.

【００１３】固体潤滑剤としては、二硫化モリブデン
（ＭｏＳ2)、グラファイト、ＢＮ、二硫化タングステン
（ＷＳ2)、ＰＴＦＥ、フッ素系樹脂、Ｐｂ等を挙げるこ
とができる。グラファイトは天然、人造グラファイトの
いずれでもよいが、人造グラファイトが耐摩耗性の観点
から好ましい。これらの固体潤滑剤は、摩擦係数を低く
且つ安定にする作用とともに、なじみ性を有する。これ
らの作用を十分に発揮させるために、固体潤滑剤の平均
粒径は１５μｍ以下、特に０．２〜１０μｍであること
が好ましい。Examples of the solid lubricant include molybdenum disulfide (MoS 2 ), graphite, BN, tungsten disulfide (WS 2 ), PTFE, fluororesin, and Pb. The graphite may be either natural or artificial graphite, but artificial graphite is preferred from the viewpoint of abrasion resistance. These solid lubricants have an effect of lowering and stabilizing the coefficient of friction, and have conformability. In order to sufficiently exhibit these effects, the average particle size of the solid lubricant is preferably 15 μm or less, particularly preferably 0.2 to 10 μm.

【００１４】本発明では、ポリイミド樹脂及びポリアミ
ドイミド樹脂のうちの少なくとも１種の樹脂３０〜７０
ｖｏｌ％に対して、固体潤滑剤３０〜７０ｖｏｌ％を使
用する。この配合量において、本発明の引張強度の高い
ポリイミド樹脂、ポリアミドイミド樹脂を含む固体潤滑
被膜中において、固体潤滑剤が強固に保持され、充分な
耐焼付性となじみ性が得られるとともに、耐摩耗性も十
分に発揮される。In the present invention, at least one resin selected from the group consisting of a polyimide resin and a polyamideimide resin is used.
For the vol%, 30 to 70 vol% of the solid lubricant is used. In this compounding amount, the solid lubricant is firmly held in the solid lubricating film containing the polyimide resin and the polyamideimide resin having high tensile strength of the present invention, and sufficient seizure resistance and conformability are obtained, and wear resistance is obtained. Sex is also fully exhibited.

【００１５】本発明の固体潤滑被膜組成物は、更に、摩
擦調整剤及び／又は極圧剤を含有することが好ましい。[0015] The solid lubricating coating composition of the present invention preferably further contains a friction modifier and / or an extreme pressure agent.

【００１６】極圧剤としては、ＺｎＳ、Ａｇ2Ｓ、Ｃｕ
Ｓ、ＦｅＳ、ＦｅＳ2、Ｓｂ3Ｓ2、ＰｂＳ、Ｂｉ2Ｓ3、
ＣｄＳ等の如き硫黄含有金属化合物、チラウム類、モル
フォリン・ジサルファイド、ジチオ酸塩、スルフィド
類、スルフォキサイド類、スルフォン酸類、チオホスフ
ィネート類、チオカーボネート類、ジチオカーボメート
類、アルキルチオカルバモイル類、硫化オレフィン等の
硫黄含有化合物、塩素化炭化水素等のハロゲン系化合
物、ジチオリン酸亜鉛などのチオリン酸塩やチオカルバ
ミン酸塩等の有機金属系化合物、ジチオリン酸モリブデ
ン、ジチオカルビミン酸モリブデン等の有機モリブデン
化合物などを挙げることができる。As extreme pressure agents, ZnS, Ag 2 S, Cu
S, FeS, FeS 2 , Sb 3 S 2 , PbS, Bi 2 S 3 ,
Sulfur-containing metal compounds such as CdS, thiurams, morpholine disulfide, dithioates, sulfides, sulfoxides, sulfonic acids, thiophosphinates, thiocarbonates, dithiocarbamates, alkylthiocarbamoyls, sulfurized Sulfur-containing compounds such as olefins, halogen compounds such as chlorinated hydrocarbons, organometallic compounds such as thiophosphates and thiocarbamates such as zinc dithiophosphate, and organic molybdenum such as molybdenum dithiophosphate and molybdenum dithiocarbimate. And the like.

【００１７】また、極圧剤の平均粒径は好ましくは５μ
ｍ以下、より好ましくは２μｍ以下である。極圧剤を添
加する場合は、上記固体潤滑剤３０〜７０ｖｏｌ％のう
ち、０．５〜１０ｖｏｌ％、特に１〜５ｖｏｌ％を極圧
剤で置き換えることが好ましい。The average particle size of the extreme pressure agent is preferably 5 μm.
m, more preferably 2 μm or less. When an extreme pressure agent is added, it is preferable to replace 0.5 to 10 vol%, particularly 1 to 5 vol%, of the solid lubricant of 30 to 70 vol% with the extreme pressure agent.

【００１８】極圧剤を添加することにより、特に一時的
に固体接触がおこるような不十分な潤滑条件下や片当た
り等の場合においても、十分な耐摩耗性や耐焼付性が得
られるものである。その作用機構は定かではないが、一
時的な固体接触により、その時の摩擦熱やせん断応力か
ら固体潤滑被膜が破断されやすい状況下において、固体
潤滑被膜に分散された極圧剤が効果的に作用するものと
推定される。即ち、固体潤滑剤とその皮膜中に含まれた
極圧剤により油が強固に保持され、かつ境界潤滑被膜が
破断しにくいため、円滑な摺動面となり、耐焼付性及び
耐摩耗性が保持されるものと推定される。By adding an extreme pressure agent, sufficient abrasion resistance and seizure resistance can be obtained even under insufficient lubricating conditions such as temporary solid contact, or in the case of single contact. It is. The mechanism of action is unclear, but the extreme pressure agent dispersed in the solid lubricating film works effectively in situations where the solid lubricating film is likely to break due to frictional heat and shear stress at that time due to temporary solid contact. It is estimated that That is, the oil is firmly held by the solid lubricant and the extreme pressure agent contained in the film, and the boundary lubricating film is hard to break, so that a smooth sliding surface is obtained, and seizure resistance and abrasion resistance are maintained. It is estimated that

【００１９】摩擦調整剤としては、ＣｒＯ2、Ｆｅ
3Ｏ4、ＰｂＯ、ＺｎＯ、ＣｄＯ、Ａｌ2Ｏ 3、ＳｉＯ2、
ＳｎＯ2などの酸化物や、ＳｉＣ、Ｓｉ3Ｎ4などの化合
物等を挙げることができる。摩擦調整剤を添加する場合
は、上記固体潤滑剤３０〜７０ｖｏｌ％のうち、０．３
〜１０ｖｏｌ％、特に０．５〜５ｖｏｌ％を摩擦調整剤
で置き換えることが好ましい。摩擦調整剤を添加するこ
とにより、耐摩耗性が向上する。特に極圧剤と併用する
ことにより、摩擦調整剤による耐摩耗性向上と、極圧剤
による油の保持とが相乗的に作用して、耐摩耗性が格段
と向上する。As a friction modifier, CrOTwo, Fe
ThreeOFour, PbO, ZnO, CdO, AlTwoO Three, SiOTwo,
SnOTwoOxides such as SiC, SiThreeNFourCompounds such as
Objects and the like. When adding a friction modifier
Is 0.3 to 70% by volume of the solid lubricant.
10 to 10% by volume, especially 0.5 to 5% by volume of a friction modifier
It is preferable to replace with Add friction modifier
Thereby, the wear resistance is improved. Especially combined with extreme pressure agent
This makes it possible to improve wear resistance with friction modifiers and to use extreme pressure agents.
The oil retention by the oil acts synergistically to significantly improve wear resistance.
And improve.

【００２０】本発明では、固体潤滑被膜組成物を調製す
るにあたり、適量の有機溶剤（希釈剤）を用いることが
できる。有機溶剤は、粘度を調整して混合を容易とする
ものであり、ポリアミドイミド樹脂を溶解可能なもので
あれば特に制限なく用いられる。例えば樹脂がポリアミ
ドイミドであれば、キシレン、Ｎ−メチル−２−ピロリ
ドン、トルエンなどを組成物１００重量部に対して１０
０〜３００重量部用いることができる。In the present invention, an appropriate amount of an organic solvent (diluent) can be used in preparing the solid lubricating coating composition. The organic solvent is used for adjusting the viscosity to facilitate mixing, and is not particularly limited as long as it can dissolve the polyamideimide resin. For example, if the resin is a polyamideimide, xylene, N-methyl-2-pyrrolidone, toluene and the like are added in 10 parts by weight per 100 parts by weight of the composition.
0 to 300 parts by weight can be used.

【００２１】本発明では、上記のポリアミドイミド樹脂
及び固体潤滑剤、更に必要に応じて摩擦調整剤及び極圧
剤を含有する組成物を、軸受基材表面に被覆形成するこ
とにより、耐摩耗性及び摺動特性に優れた滑り軸受材料
を得ることができる。In the present invention, the composition containing the above-mentioned polyamideimide resin and solid lubricant, and further, if necessary, a friction modifier and an extreme pressure agent is coated on the surface of the bearing base material to provide abrasion resistance. In addition, a sliding bearing material having excellent sliding characteristics can be obtained.

【００２２】軸受基材としては、銅合金、アルミニウム
合金などの金属、あるいは樹脂等を挙げることができ
る。Examples of the bearing substrate include metals such as copper alloys and aluminum alloys, and resins .

【００２３】軸受合金は、特に組成が限定されないが、
アルミニウム系合金としては、好ましくは１０重量％以
下のＣｒ、Ｓｉ、Ｍｎ、Ｓｂ、Ｓｒ、Ｆｅ、Ｎｉ、Ｍ
ｏ、Ｔｉ、Ｗ、Ｚｒ、Ｖ、Ｃｕ、Ｍｇ、Ｚｎなどと、２
０重量％以下のＳｎ、Ｐｂ、Ｉｎ、Ｔｌ、Ｂｉの１種又
は２種以上を含有する合金を好ましく使用することがで
きる。前者の群の元素は主として強度、耐摩耗性を付与
し、後者の群の元素は主としてなじみ性を付与する。前
者と後者を組み合わせて使用することが好ましい。Although the composition of the bearing alloy is not particularly limited,
As the aluminum-based alloy, Cr, Si, Mn, Sb, Sr, Fe, Ni, M
o, Ti, W, Zr, V, Cu, Mg, Zn, etc .;
An alloy containing one or more of Sn, Pb, In, Tl, and Bi at 0% by weight or less can be preferably used. Elements of the former group mainly impart strength and wear resistance, and elements of the latter group mainly impart conformability. It is preferable to use the former and the latter in combination.

【００２４】以下固体潤滑被膜の被覆（コーティング）
法を説明する。銅合金、アルミニウム合金、樹脂等の基
材を滑り軸受形状のライニングに加工した後、苛性ソー
ダなどのアルカリ処理液中において脱脂処理し、続いて
水洗及び湯洗を行い表面に付着したアルカリを除去す
る。例えば、固体潤滑被膜の密着性を高くする必要があ
るとき、脱脂後アルカリエッチングと酸洗との組合せ等
の化学的処理によりライニングの表面を粗面化する、シ
ョットブラストなどの機械的処理によりライニング表面
を粗面化する、ボーリング加工（？）等によりライニン
グ表面に凹凸を形成する等の方法をとることができる。
更に密着性を高める必要があるときは、ライニング表面
に厚み０．１〜５μｍのリン酸亜鉛又はリン酸亜鉛カル
シウム化成処理を施してもよい。ボーリングなどの下地
処理と化成処理を組み合わせると、極めて密着性が高い
潤滑膜層が得られる。The coating of the solid lubricating film below
Explain the law. After processing a base material such as a copper alloy, an aluminum alloy, or a resin into a lining in the shape of a sliding bearing, degrease it in an alkali treatment liquid such as caustic soda, and then wash with water and hot water to remove alkali adhering to the surface. . For example, when it is necessary to increase the adhesion of the solid lubricating film, the surface of the lining is roughened by a chemical treatment such as a combination of alkali etching and pickling after degreasing, and the lining is mechanically treated by shot blasting or the like. A method such as roughening the surface or forming irregularities on the lining surface by boring (?) Or the like can be employed.
When it is necessary to further improve the adhesion, the surface of the lining may be subjected to a chemical conversion treatment of zinc phosphate or zinc calcium phosphate having a thickness of 0.1 to 5 μm. When a base treatment such as boring is combined with a chemical conversion treatment, a lubricating film layer having extremely high adhesion can be obtained.

【００２５】湯洗後温風乾燥し、適当な希釈剤で希釈し
た本発明の組成物をスプレーでライニング上に塗布し、
１５０〜３００℃で乾燥・焼結する。成膜後の表面粗さ
が粗いときはバフ等による平滑化処理を行う。スプレー
法の他に、タンブリング法、浸漬法、はけ塗り法、印刷
法などの方法により固体潤滑被膜を被覆形成することが
できる。潤滑膜の厚みは１〜５０μｍであることが好ま
しい。After washing with hot water and drying with warm air, the composition of the present invention diluted with a suitable diluent is applied on the lining by spraying,
Dry and sinter at 150-300 ° C. When the surface roughness after the film formation is rough, a smoothing process using a buff or the like is performed. In addition to the spray method, the solid lubricating film can be formed by a method such as a tumbling method, a dipping method, a brushing method, and a printing method. The thickness of the lubricating film is preferably 1 to 50 μm.

【００２６】[0026]

【実施例】以下、本発明を実施例により例証するが、本
発明はこれらの実施例に限定されるものではない。EXAMPLES The present invention will now be illustrated by examples, but the present invention is not limited to these examples.

【００２７】実施例１〜５及び比較例１〜３ ポリアミドイミド樹脂Ａ（ＨＰＣ−改、日立化成製、引
張強度１２５ＭＰａ） ６０ｖｏｌ％及び固体潤滑剤として二硫化モリブデン４
０ｖｏｌ％と、有機溶剤適量とをボールミルに投入し、
３時間粉砕混合して実施例１の固体潤滑被膜組成物とし
た。Examples 1 to 5 and Comparative Examples 1 to 3 Polyamideimide resin A (HPC-Kai, manufactured by Hitachi Chemical, tensile strength 125 MPa) 60 vol% and molybdenum disulfide 4 as a solid lubricant
0 vol% and an appropriate amount of an organic solvent are charged into a ball mill,
The mixture was pulverized and mixed for 3 hours to obtain a solid lubricating coating composition of Example 1.

【００２８】次に、裏金鋼板上にアルミニウム系合金
（Ａｌ−１１Ｓｎ−１．８Ｐｂ−１Ｃｕ−３Ｓｉ）から
なるライニング材が圧接された半割円筒状等の軸受表面
を脱脂した後、ショットブラスト処理により粗面化して
４μｍＲｚの表面粗さとした。次いで、上記固体潤滑被
膜組成物をエアスプレーで約１０μｍの膜厚となるよう
に吹きつけ、その後２２０℃で約３０分間加熱硬化させ
て固体潤滑被膜を形成し、滑り軸受（メタル用オーバレ
イ）を製造した（実施例１）。Next, after a bearing surface such as a half-cylindrical bearing in which a lining material made of an aluminum-based alloy (Al-11Sn-1.8Pb-1Cu-3Si) is pressed onto a back metal steel plate, a shot blasting treatment is performed. To give a surface roughness of 4 μmRz. Next, the solid lubricating coating composition is sprayed with an air spray to a thickness of about 10 μm, and then cured by heating at 220 ° C. for about 30 minutes to form a solid lubricating coating, and a slide bearing (metal overlay) is formed. Manufactured (Example 1).

【００２９】一方、上記実施例１で調製した固体潤滑被
膜組成物において、ポリアミドイミド樹脂として、ポリ
アミドイミド樹脂Ｂ（ＨＰＣ、日立化成製、引張強度９
０ＭＰａ）を用いて比較用固体潤滑被膜組成物を調製し
た以外は、実施例１と同様にして、潤滑膜を形成し、滑
り軸受を製造した（比較例１）。On the other hand, in the solid lubricating coating composition prepared in Example 1 above, polyamideimide resin B (HPC, manufactured by Hitachi Chemical, tensile strength 9
A lubricating film was formed and a sliding bearing was manufactured in the same manner as in Example 1 except that a comparative solid lubricating coating composition was prepared using 0 MPa) (Comparative Example 1).

【００３０】更に、上記実施例１で調製した固体潤滑皮
膜組成物において、用いたポリアミドイミド（ＰＡＩ）
及び二硫化モリブデン（ＭｏＳ2)の量、及び必要に応じ
て、極圧剤としての硫化亜鉛（ＺｎＳ）及び摩擦調整剤
としての酸化アルミニウム（Ａｌ2Ｏ3)の量を、表１に
示す通りの組成比に変更して各固体潤滑被膜組成物を調
製した以外は、実施例１と同様にして、固体潤滑被膜を
形成し、各滑り軸受を製造した（実施例２〜５及び比較
例２、３）。Further, in the solid lubricating coating composition prepared in Example 1, the polyamide imide (PAI) used
And the amounts of molybdenum disulfide (MoS 2 ) and, if necessary, zinc sulfide (ZnS) as an extreme pressure agent and aluminum oxide (Al 2 O 3 ) as a friction modifier, as shown in Table 1. The solid lubricating coatings were formed in the same manner as in Example 1 except that the respective solid lubricating coating compositions were prepared by changing the composition ratio of the solid lubricants, and each sliding bearing was manufactured (Examples 2 to 5 and Comparative Example 2). 3).

【００３１】上記の通りにして得られた各軸受のメタル
用オーバーレイとしての性能を評価するために、耐焼付
性試験と耐摩耗性試験を行った。結果を表１に併記す
る。なお、耐摩耗性試験は、潤滑油として１０Ｗ−３０
ＣＤ（キャッスル製）を５００ｃｃ／ｍｉｎの量で使用
し（軸入口の油温１００℃）、荷重９ｋＮ（３０ＭＰ
ａ）にて７．１ｍ／ｓ（３０００ｒｐｍ）で５時間回転
させたときの軸受摩耗深さ（μｍ）を測定した。また耐
焼付試験は、潤滑油として１０Ｗ−３０ＣＤ（キャッス
ル製）を５００ｃｃ／ｍｉｎの量で使用し、荷重は３０
分毎に１ｋＮの荷重漸増（最大９ｋＮ）で、速度７．１
ｍ／ｓで行った。To evaluate the performance of each bearing obtained as described above as a metal overlay, a seizure resistance test and a wear resistance test were performed. The results are also shown in Table 1. In addition, the abrasion resistance test was performed using a lubricating oil of 10W-30.
A CD (manufactured by Castle) was used at a flow rate of 500 cc / min (oil temperature at the shaft inlet 100 ° C.), and a load of 9 kN (30 MP) was used.
In (a), the bearing wear depth (μm) was measured when rotating at 7.1 m / s (3000 rpm) for 5 hours. In the anti-seizure test, 10W-30CD (manufactured by Castle) was used as a lubricating oil at an amount of 500 cc / min, and the load was 30
With a load ramp of 1 kN per minute (up to 9 kN), a speed of 7.1
m / s.

【００３２】[0032]

【表１】 [Table 1]

【００３３】表１の結果から、本発明の組成物を被覆形
成した固体潤滑被膜は、耐摩耗性及び耐焼付性が格段と
向上していることが明らかである。From the results shown in Table 1, it is clear that the solid lubricating coating formed by coating the composition of the present invention has remarkably improved wear resistance and seizure resistance.

【００３４】実施例６及び比較例４ 実施例１において、ポリアミドイミド樹脂Ａ６０ｖｏｌ
％及び二硫化モリブデン４０ｖｏｌ％の変わりに、ポリ
アミドイミド樹脂Ａ５０ｖｏｌ％、固体潤滑剤としてＰ
ＴＦＥ２５ｖｏｌ％及びグラファイト２５ｖｏｌ％を用
いて固体潤滑被膜組成物を調製し、更に軸受基材として
ＳＰＣＣ鋼板を用い、すべり軸受としてブシュ形状とし
た他は実施例１と同様にして滑り軸受材料を製造した
（実施例６）。Example 6 and Comparative Example 4 In Example 1, the polyamideimide resin A60vol
% And molybdenum disulfide 40 vol%, instead of polyamideimide resin A 50 vol%, P as solid lubricant
A sliding bearing material was produced in the same manner as in Example 1 except that a solid lubricating coating composition was prepared using 25 vol% of TFE and 25 vol% of graphite, and further, an SPCC steel plate was used as a bearing base material, and a bush shape was used as a sliding bearing. (Example 6).

【００３５】また、上記実施例６における固体潤滑被膜
組成物において、ポリアミドイミド樹脂として、ポリア
ミドイミド樹脂Ａの代わりにポリアミドイミド樹脂Ｂを
用いて比較用固体潤滑被膜組成物を調製した以外は、実
施例６と同様にして固体潤滑被膜を形成し、ブシュ形状
の滑り軸受を製造した（比較例４）。In the solid lubricating coating composition of Example 6, a comparative solid lubricating coating composition was prepared using polyamideimide resin B instead of polyamideimide resin A as the polyamideimide resin. A solid lubricating film was formed in the same manner as in Example 6, and a bushing-shaped plain bearing was manufactured (Comparative Example 4).

【００３６】上記ブシュ用コーティング材としての摩耗
量を、図１の条件で測定したところ、表２に示すよう
に、本発明の軸受材料は、優れた耐摩耗性が得られた。The amount of wear as the bushing coating material was measured under the conditions shown in FIG. 1. As shown in Table 2, the bearing material of the present invention exhibited excellent wear resistance.

【００３７】[0037]

【表２】 [Table 2]

【００３８】[0038]

【発明の効果】本発明の固体潤滑被膜組成物によれば、
耐摩耗性及び耐焼付性が格段と向上し、摺動特性の優れ
た固体潤滑被膜を形成することができる。更に、本発明
の固体潤滑被膜を有する滑り軸受材料は、優れた耐摩耗
性及び耐焼付性を有することから、特に自動車やその他
の産業機械のエンジンにおける滑り軸受材料のオーバレ
イ、ターボフローティングブシュ、エンドベアリング、
冷凍機器等の軸受などに好適に使用できる。According to the solid lubricating coating composition of the present invention,
The wear resistance and seizure resistance are remarkably improved, and a solid lubricating film having excellent sliding characteristics can be formed. Furthermore, since the sliding bearing material having the solid lubricating coating of the present invention has excellent wear resistance and seizure resistance, the sliding bearing material overlay, turbo floating bush, and end are particularly useful for engines of automobiles and other industrial machines. bearing,
It can be suitably used for bearings of refrigeration equipment and the like.

【図面の簡単な説明】[Brief description of the drawings]

【図１】図１は、実施例６で製造したブシュ形状の滑り
軸受の耐摩耗性の試験条件を示す図である。 １ 軸 ２ ブシュ ３ ハウジング ４ ブシュと軸との隙間FIG. 1 is a view showing test conditions for wear resistance of a bushing-shaped plain bearing manufactured in Example 6. 1 shaft 2 bush 3 housing 4 clearance between bush and shaft

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ１０Ｍ 149/18 Ｃ１０Ｍ 149/18 Ｆ１６Ｃ 33/10 Ｆ１６Ｃ 33/10 Ｄ // Ｃ１０Ｎ 20:00 30:06 40:02 50:08 (72)発明者 壁谷 泰典 愛知県豊田市緑ケ丘３丁目65番地 大豊工 業株式会社内──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI C10M 149/18 C10M 149/18 F16C 33/10 F16C 33/10 D // C10N 20:00 30:06 40:02 50:08 (72) Inventor Yasunori Kabuya 3-65 Midorigaoka, Toyota City, Aichi Prefecture Inside Daitoyo Kogyo Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 引張強度１００ＭＰａ以上のポリイミド
樹脂及びポリアミドイミド樹脂から選択される少なくと
も１種の樹脂３０〜７０ｖｏｌ％並びに固体潤滑剤３０
〜７０ｖｏｌ％を含有することを特徴とする固体潤滑被
膜組成物。1. A resin comprising 30 to 70 vol% of at least one resin selected from a polyimide resin and a polyamideimide resin having a tensile strength of 100 MPa or more, and a solid lubricant 30.
A solid lubricating coating composition comprising -70 vol%. 【請求項２】 固体潤滑剤の０．３〜１０ｖｏｌ％を摩
擦調整剤及び極圧剤のうちの少なくとも１種で置き換え
ることを特徴とする請求項１記載の固体潤滑被膜組成
物。2. The solid lubricating coating composition according to claim 1, wherein 0.3 to 10 vol% of the solid lubricant is replaced with at least one of a friction modifier and an extreme pressure agent. 【請求項３】 軸受基材表面に、請求項１又は２記載の
固体潤滑被膜組成物を被覆形成したことを特徴とする滑
り軸受材料。3. A sliding bearing material comprising a bearing substrate surface coated with the solid lubricating coating composition according to claim 1 or 2.
JP9271421A 1997-10-03 1997-10-03 Solid lubricating film composition and plain bearing material using the same Pending JPH11106779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publication Number Publication Date
JPH11106779A true JPH11106779A (en) 1999-04-20

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ID=17499808

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Country Link
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