JP2002053883A - Composition for sliding member - Google Patents
Composition for sliding memberInfo
- Publication number
- JP2002053883A JP2002053883A JP2000238646A JP2000238646A JP2002053883A JP 2002053883 A JP2002053883 A JP 2002053883A JP 2000238646 A JP2000238646 A JP 2000238646A JP 2000238646 A JP2000238646 A JP 2000238646A JP 2002053883 A JP2002053883 A JP 2002053883A
- Authority
- JP
- Japan
- Prior art keywords
- composition
- sliding member
- weight
- parts
- antiwear agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Lubricants (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ポリアミドイミド
樹脂をバインダとした摺動部材用組成物に関する。この
摺動部材用組成物をコーティングして得られる摺動部材
は、例えばエンジンのピストンにおけるスカート部等の
ように、特に油中潤滑下で摺動される部位に供して好適
である。TECHNICAL FIELD The present invention relates to a composition for a sliding member using a polyamideimide resin as a binder. A sliding member obtained by coating the composition for a sliding member is suitable for use in a portion that is slid particularly under lubrication in oil, such as a skirt portion of an engine piston.
【０００２】[0002]
【従来の技術】特開昭５４−１６２０１４号公報には、
ピストンスカートに固体潤滑剤を含有したフッ素樹脂を
コーティングした摺動部材が開示されている。このよう
に従来から摺動部の表面に樹脂をコーティングして潤滑
膜を形成していた。摺動部材用組成物は摺動部にコーテ
ィングして潤滑膜を形成するために用いられる組成物で
ある。このように摺動面に潤滑膜を形成するのは、摺動
部の初期のなじみ性やスカッフィングを防止し、また摩
擦係数（フリクション係数）を低減するためである。2. Description of the Related Art JP-A-54-162014 discloses that
A sliding member in which a piston skirt is coated with a fluororesin containing a solid lubricant is disclosed. As described above, the surface of the sliding portion is conventionally coated with the resin to form the lubricating film. The composition for a sliding member is a composition used for forming a lubricating film by coating a sliding portion. The reason for forming the lubricating film on the sliding surface in this way is to prevent the initial conformability and scuffing of the sliding portion and to reduce the friction coefficient (friction coefficient).
【０００３】潤滑膜を形成する摺動部材用組成物には、
バインダとしてポリアミドイミド樹脂、エポキシ樹脂、
ポリイミド樹脂等の熱硬化性樹脂が耐熱性の観点から用
いられている。そして潤滑膜の摩擦特性、耐摩耗性を向
上するために、バインダとして用いられる熱硬化性樹脂
に固体潤滑剤、耐摩耗剤等が添加されている。[0003] Compositions for sliding members forming a lubricating film include:
Polyamide imide resin, epoxy resin as binder,
Thermosetting resins such as polyimide resins are used from the viewpoint of heat resistance. In order to improve the friction characteristics and wear resistance of the lubricating film, a solid lubricant, an antiwear agent, and the like are added to the thermosetting resin used as the binder.
【０００４】[0004]
【発明が解決しようとする課題】この場合潤滑膜の耐摩
耗性を高めようとすると固体潤滑剤の配合比率を低くし
なければならず、潤滑膜のなじみ性を高めるためには固
体潤滑剤を多くするなど両立が困難な課題が存在してい
た。In this case, in order to improve the wear resistance of the lubricating film, the compounding ratio of the solid lubricant must be reduced, and in order to improve the conformability of the lubricating film, the solid lubricant must be used. There were difficult tasks such as increasing the number.
【０００５】また近年、車両の低燃費化を図る観点から
潤滑膜が潤滑膜の効果が継続するように優れた耐摩耗性
を有し、合わせて摺動部の摩擦係数を小さくしてフリク
ションを低減する優れた摩擦特性を有することが期待さ
れている。In recent years, from the viewpoint of reducing the fuel consumption of vehicles, the lubricating film has excellent wear resistance so that the effect of the lubricating film is maintained, and at the same time, reduces the friction coefficient of the sliding portion to reduce friction. It is expected to have excellent friction properties to reduce.
【０００６】そこで本発明の目的は、優れた耐摩耗性、
優れた摩擦特性及び優れた耐焼き付き性等の摩擦摩耗特
性を有する潤滑膜を形成することができる摺動部材用組
成物を提供することにある。Accordingly, an object of the present invention is to provide excellent wear resistance,
An object of the present invention is to provide a composition for a sliding member that can form a lubricating film having excellent friction characteristics such as excellent friction characteristics and excellent seizure resistance.
【０００７】[0007]
【課題を解決するための手段】本発明者は、実験を繰り
返した結果、耐摩耗性、摩擦特性、耐焼き付き性等に樹
脂マトリックスと添加成分の適正化が優れた効果を発揮
することを見いだした。そしてポリアミドイミド樹脂の
引張強度、縦弾性係数、伸び率がそれぞれ異なるものを
準備して耐摩耗性、耐焼き付き性等を評価した。更にポ
リアミドイミド樹脂に各種の固体潤滑剤、耐摩耗剤を添
加して、摺動部材用組成物を調整して、この潤滑膜成形
用組成物で摺動部に潤滑膜を形成して、耐摩耗性、摩擦
特性、耐焼き付き性等を評価した。As a result of repeating the experiment, the present inventor has found that the optimization of the resin matrix and the added components exerts excellent effects on abrasion resistance, friction characteristics, seizure resistance and the like. Was. Then, a polyamideimide resin having different tensile strength, longitudinal elastic modulus and elongation was prepared to evaluate abrasion resistance, seizure resistance and the like. Further, various solid lubricants and anti-wear agents are added to the polyamideimide resin to prepare a composition for a sliding member, and a lubricating film is formed on a sliding portion with the composition for forming a lubricating film, and the Abrasion, friction characteristics, seizure resistance and the like were evaluated.
【０００８】その結果本発明者は、ポリアミドイミド樹
脂と該ポリアミドイミド樹脂に分散された固体潤滑剤及
び耐摩耗剤とを含む摺動部材用組成物であって、前記ポ
リアミドイミド樹脂は、引張強度が７８．４〜９８ＭＰ
ａであり、縦弾性係数が１９６０〜２９４０ＭＰａであ
り、伸び率が１０〜２０％であることを特徴とする摺動
部材用組成物を発明した。As a result, the present inventor has set forth a sliding member composition comprising a polyamideimide resin and a solid lubricant and an antiwear agent dispersed in the polyamideimide resin, wherein the polyamideimide resin has a tensile strength. Is 78.4-98MP
a, a longitudinal modulus of elasticity of 1960 to 2940 MPa, and an elongation of 10 to 20%.
【０００９】即ち潤滑膜は、相手材と接触し摺動するの
で、相手材との摺動によって破壊されないように潤滑膜
のバインダであるポリアミドイミド樹脂は一定以上の強
度即ち耐摩耗性を有する必要がある。この場合ポリアミ
ドイミド樹脂の引張強度が７８．４ＭＰａ未満である
と、摺動部の表面にコーティングされた潤滑膜が相手材
との摺動によって強度不足により破壊されてしまうこと
があり、潤滑膜の耐摩耗性を確保することができない。
逆に９８ＭＰａを超えても相手材との摺動による摩耗の
防止するという潤滑膜の耐摩耗性の効果がもはや改善さ
れることはない。That is, since the lubricating film comes into contact with the mating material and slides, the polyamideimide resin as a binder of the lubricating film needs to have a certain strength or abrasion resistance so as not to be broken by the sliding with the mating material. There is. In this case, if the tensile strength of the polyamide-imide resin is less than 78.4 MPa, the lubricating film coated on the surface of the sliding portion may be broken due to insufficient strength due to sliding with a mating material, and the lubricating film may be damaged. Abrasion resistance cannot be ensured.
Conversely, even if the pressure exceeds 98 MPa, the effect of the wear resistance of the lubricating film, that is, the prevention of wear due to sliding with the counterpart material, is no longer improved.
【００１０】またバインダであるポリアミドイミド樹脂
の縦弾性係数が低いと、潤滑膜が相手材と接触したとき
に潤滑膜が変形し易くなり、接触応力を分散して低減す
ることができる。その結果潤滑膜が形成された摺動部材
は摩擦係数を低減することができ、優れた摩擦特性を有
することが可能となる。この場合縦弾性係数が１９６０
ＭＰａ未満では潤滑膜が変形しすぎてしまう。逆に２９
４０ＭＰａを超えると、相手材と接触したときに生ずる
接触応力を分散しにくくなり、接触応力を低減する効果
が不十分となる。When the polyamide-imide resin as a binder has a low longitudinal elastic modulus, the lubricating film is easily deformed when the lubricating film comes into contact with a mating material, and the contact stress can be dispersed and reduced. As a result, the sliding member on which the lubricating film is formed can reduce the coefficient of friction, and can have excellent friction characteristics. In this case, the modulus of longitudinal elasticity is 1960
If the pressure is lower than MPa, the lubricating film is excessively deformed. Conversely 29
If it exceeds 40 MPa, it is difficult to disperse the contact stress generated when the contact material comes into contact with the counterpart material, and the effect of reducing the contact stress becomes insufficient.
【００１１】更に伸び率は大きいほど破壊されることな
く変形する範囲が大きい特性を示しており、バインダで
あるポリアミドイミド樹脂の伸び率が大きいこと潤滑膜
が破壊することなく変形することができ、潤滑膜の変形
によって接触応力を分散し低減することができる。これ
により摩擦係数を低減することができ、優れた摩擦特性
を有することが可能となる。また伸び率が大きければ破
壊することなくのびるので、優れた耐摩耗性を有するこ
とができる。この場合ポリアミドイミド樹脂の伸び率が
１０％未満であると、接触応力を分散して、摩擦係数を
低減する効果が不十分となる。逆に伸び率が２０％を超
えると、潤滑膜の変形が大きくなり、潤滑膜の摺動部材
との密着性が不十分となる。Further, the larger the elongation is, the larger the range of deformation without breaking is shown. The large elongation of the polyamide-imide resin as the binder enables the lubricating film to be deformed without breaking. The contact stress can be dispersed and reduced by the deformation of the lubricating film. Thereby, the friction coefficient can be reduced, and it becomes possible to have excellent friction characteristics. Also, if the elongation is large, it can be extended without breaking, so that it can have excellent wear resistance. In this case, if the elongation percentage of the polyamide-imide resin is less than 10%, the effect of dispersing the contact stress and reducing the friction coefficient becomes insufficient. Conversely, if the elongation exceeds 20%, the deformation of the lubricating film becomes large, and the adhesion of the lubricating film to the sliding member becomes insufficient.
【００１２】また発明者は、バインダであるポリアミド
イミド樹脂に分散する固体潤滑剤は、１００重量部のポ
リアミドイミド樹脂に対して、１〜５００重量部とした
場合に優れた摩擦特性、耐焼き付き性を有することを見
出した。固体潤滑剤が１重量部未満であると摩擦係数の
低減、耐焼き付き特性に十分な効果がない。逆に固体潤
滑剤が５００重量部を超えると、相対的にバインダであ
るポリアミドイミド樹脂が少なくなるために摩耗しやす
くなり、また固体潤滑剤の保持力が減少して固体潤滑剤
が脱落しやすくなって、優れた耐摩耗性を有することが
できない。従って固体潤滑剤は、１００重量部のポリア
ミドイミド樹脂に対して１〜５００重量部であることが
好ましい。The inventor has also found that the solid lubricant dispersed in the polyamideimide resin as a binder has excellent friction characteristics and seizure resistance when the solid lubricant is 1 to 500 parts by weight with respect to 100 parts by weight of the polyamideimide resin. Was found to have. When the amount of the solid lubricant is less than 1 part by weight, the effect of reducing the friction coefficient and the seizure resistance is insufficient. Conversely, if the solid lubricant exceeds 500 parts by weight, the polyamideimide resin as the binder is relatively reduced, so that the solid lubricant is liable to be worn, and the holding power of the solid lubricant is reduced, so that the solid lubricant is easily dropped. As a result, excellent wear resistance cannot be obtained. Therefore, the amount of the solid lubricant is preferably 1 to 500 parts by weight based on 100 parts by weight of the polyamideimide resin.
【００１３】更に発明者は、バインダであるポリアミド
イミド樹脂に分散する耐摩耗剤は、１００重量部のポリ
アミドイミド樹脂に対して１〜５００重量部として場合
に優れた耐摩耗性を有することを見出した。耐摩耗剤が
１重量部未満であると耐摩耗性の効果が小さく、耐摩耗
剤を添加しない場合とさほど変わらない。逆に耐摩耗剤
が５００重量部を超えると潤滑膜が相手材と摺動した場
合に相手材に対する相手攻撃性が大きくなるし、また摩
擦係数が大きくなってしまう。従って耐摩耗剤は、１０
０重量部のポリアミドイミド樹脂に対して１〜５００重
量部であることが好ましい。Further, the inventor has found that the anti-wear agent dispersed in the polyamide-imide resin as the binder has excellent abrasion resistance when 1 to 500 parts by weight based on 100 parts by weight of the polyamide-imide resin. Was. When the amount of the antiwear agent is less than 1 part by weight, the effect of the antiwear property is small, and the effect is not so different from the case where the antiwear agent is not added. Conversely, if the amount of the antiwear agent exceeds 500 parts by weight, when the lubricating film slides with the counterpart material, the counterpart material's aggressiveness against the counterpart material increases, and the friction coefficient increases. Therefore, the antiwear agent is 10
The amount is preferably 1 to 500 parts by weight based on 0 parts by weight of the polyamideimide resin.
【００１４】[0014]
【発明の実施の形態】以下本発明の実施の形態を説明す
る。本発明の摺動部材用組成物は、ポリアミドイミド樹
脂とポリアミドイミド樹脂に分散された固体潤滑剤及び
耐摩耗剤とを含む摺動部材用組成物であって、ポリアミ
ドイミド樹脂は、引張強度が７８．４〜９８ＭＰａであ
り、縦弾性係数が１９６０〜２９４０ＭＰａであり、伸
び率が１０〜２０％であることを特徴とする。Embodiments of the present invention will be described below. The composition for a sliding member of the present invention is a composition for a sliding member containing a polyamideimide resin and a solid lubricant and an antiwear agent dispersed in the polyamideimide resin, and the polyamideimide resin has a tensile strength. 78.4 to 98 MPa, a longitudinal elastic modulus of 1960 to 2940 MPa, and an elongation of 10 to 20%.
【００１５】本発明で用いられるポリアミドイミド樹脂
として、芳香族ポリアミド樹脂、またはそのジイソシア
ネート変性、ＢＰＤＡ変性、スルホン変性樹脂のワニス
などを挙げることができる。引張強度が７８．４〜９８
ＭＰａであり、縦弾性係数が１９６０〜２９４０ＭＰａ
であり、伸び率が１０〜２０％のポリアミドイミド樹脂
は、市販されているポリアミドイミド樹脂から選択して
入手することができる。例えば日立化成株式会社製の商
品名ＨＰＣ４２５０等を用いることができる。Examples of the polyamideimide resin used in the present invention include aromatic polyamide resins and varnishes of diisocyanate-modified, BPDA-modified, and sulfone-modified resins. Tensile strength of 78.4-98
MPa, and the longitudinal elastic modulus is 1960-2940 MPa
The polyamideimide resin having an elongation of 10 to 20% can be obtained by selecting from commercially available polyamideimide resins. For example, HPC4250 or the like manufactured by Hitachi Chemical Co., Ltd. can be used.
【００１６】なお引張強度は以下のように測定した。ガ
ラス上で約１５μｍの厚みでフィルム化したポリアミド
イミド樹脂を１０×６０ｍｍにカットしたものを試料と
した。そしてこれをオリエンテック株式会社製のＵＣＴ
−５Ｔテンシロン万能試験機を用いて引張強度を測定し
た。伸び率についても、上述した引張強度の場合と同様
に測定した。縦弾性係数は、伸び率と引張強度をプロッ
トしてそのときの初期勾配を測定した。The tensile strength was measured as follows. A polyamideimide resin formed into a film with a thickness of about 15 μm on glass and cut into a size of 10 × 60 mm was used as a sample. And this is Orientec's UCT
Tensile strength was measured using a -5T Tensilon universal testing machine. The elongation was measured in the same manner as in the case of the tensile strength described above. The longitudinal elastic modulus was obtained by plotting the elongation and the tensile strength and measuring the initial gradient at that time.
【００１７】固体潤滑剤は、公知のものから適切なもの
を選択して用いることができるが、固体潤滑剤をバイン
ダであるポリアミドイミド樹脂に分散させて潤滑膜を摺
動部材の表面に形成することにより、摩擦係数を低減さ
せて、なじみ性を確保することができる。なお２硫化モ
リブデン（ＭｏＳ2）及び２硫化タングステン（ＷＳ2）
等の硫化物、ポリテトラフルオロチエチレン（ＰＴＦ
Ｅ）、テトラフルオロエチレン-パーフルオロアルキル
ビニルエーテル共重合体、テトラフルオロエチレン-ヘ
キサフルオロフロピレン共重合体、テトラフルオロエチ
レン-エチレン共重合体、ポリビニリデンフルオライド
及びポリクロロトリフルオロチレン等のフッ素化合物、
黒鉛（グラファイト）、フッ化黒鉛等から選択すること
が好ましく、硫化物、フッ素化合物、黒鉛のうち１種、
２種又は３種を選択して用いることが摩擦特性、耐焼き
付き性の向上の観点から好ましい。詳細なデータを特に
記載しないが、硫化物、フッ素化合物、黒鉛とも同様な
効果を示すことが確認されている。As the solid lubricant, an appropriate one can be selected from known ones, and the solid lubricant is dispersed in a polyamideimide resin as a binder to form a lubricating film on the surface of the sliding member. Thereby, the coefficient of friction can be reduced and conformability can be ensured. Molybdenum disulfide (MoS 2 ) and tungsten disulfide (WS 2 )
Such as sulfide, polytetrafluorothiethylene (PTF
E), fluorine compounds such as tetrafluoroethylene-perfluoroalkylvinyl ether copolymer, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-ethylene copolymer, polyvinylidene fluoride, and polychlorotrifluoroethylene. ,
It is preferable to select from graphite (graphite), fluorinated graphite and the like, and one of sulfide, fluorine compound and graphite,
It is preferable to select and use two or three types from the viewpoint of improving the friction characteristics and seizure resistance. Although detailed data is not particularly described, it has been confirmed that sulfides, fluorine compounds, and graphite exhibit similar effects.
【００１８】上述したように固体潤滑剤は、１００重量
部のポリアミドイミド樹脂に対して１〜５００重量部が
摩擦特性、耐焼き付き性の観点から好ましいが、更に具
体的には、１００重量部のポリアミドイミド樹脂、例え
ば日立化成株式会社製の商品名ＨＰＣ４２５０に対し
て、ＰＴＦＥが５〜１０重量部であること、またはＰＴ
ＦＥが５〜１０重量部及びグラファイトが５〜１５重量
部の組み合わせであることが更に好ましい。この範囲に
おいて摩擦係数の低減（摩擦特性）と耐焼き付き性に最
も優れたものとなる。As described above, the solid lubricant is preferably used in an amount of 1 to 500 parts by weight, based on 100 parts by weight of the polyamideimide resin, from the viewpoint of friction characteristics and seizure resistance. PTFE is 5 to 10 parts by weight with respect to polyamideimide resin, for example, HPC4250 (trade name, manufactured by Hitachi Chemical Co., Ltd.), or PT
More preferably, the combination of FE is 5 to 10 parts by weight and graphite is 5 to 15 parts by weight. Within this range, the coefficient of friction (friction characteristics) and the seizure resistance are most excellent.
【００１９】また固体潤滑剤と耐摩耗剤の配合割合につ
いては、１００重量部の耐摩耗剤に対して１〜６０００
重量部の固体潤滑剤が好ましい。その内容を詳しく述べ
ると１００重量部の耐摩耗剤に対して、０〜２０００重
量部の硫化物、０〜２０００重量部のフッ素化合物及び
０〜２０００重量部の黒鉛からなる固体潤滑剤であるこ
と、即ちこれらの種類の固体潤滑剤をそれぞれ０〜２０
００重量部とすることが好ましい。The mixing ratio of the solid lubricant and the antiwear agent is 1 to 6000 per 100 parts by weight of the antiwear agent.
Parts by weight of solid lubricant are preferred. To be more specific, the solid lubricant is composed of 0 to 2000 parts by weight of a sulfide, 0 to 2000 parts by weight of a fluorine compound and 0 to 2000 parts by weight of graphite with respect to 100 parts by weight of an antiwear agent. That is, each of these types of solid lubricants is
Preferably it is 00 parts by weight.
【００２０】但し少なくとも耐摩耗剤が１００重量部に
対して、固体潤滑剤は全体で少なくとも１重量部以上あ
ることが好ましい。つまり固体潤滑剤と耐摩耗剤の重量
比（固体潤滑剤／耐摩耗剤）が１／１００未満である
と、固体潤滑剤の効果が耐摩耗剤の影響で消えてしま
う。反対に固体潤滑剤と耐摩耗剤の重量比（固体潤滑剤
／耐摩耗剤）が、６０００／１００を越えると、即ち耐
摩耗剤が１００重量部に対して各固体潤滑剤が２０００
重量部を越えると、固体潤滑剤が多すぎて耐摩耗性が不
足してしまう。However, the total amount of the solid lubricant is preferably at least 1 part by weight based on at least 100 parts by weight of the antiwear agent. In other words, if the weight ratio between the solid lubricant and the antiwear agent (solid lubricant / antiwear agent) is less than 1/100, the effect of the solid lubricant disappears due to the effect of the antiwear agent. On the other hand, when the weight ratio of the solid lubricant to the antiwear agent (solid lubricant / antiwear agent) exceeds 6000/100, that is, the amount of each solid lubricant is 2000 per 100 parts by weight of the antiwear agent.
When the amount is more than the weight part, the amount of the solid lubricant is too large and the wear resistance is insufficient.
【００２１】なお固体潤滑剤の平均粒径は、０．５〜１
５μｍが好ましい。摺動部材の表面に形成される潤滑膜
の膜厚が概ね１０〜２０μｍであることを考慮すると、
膜厚の厚さに応じて、この範囲にするのが妥当と考えら
れる。粒径が膜厚と比較して小さすぎると効果が小さい
し、また粒径が膜厚と比較して大きいと固体潤滑剤が脱
落しやすい。固体潤滑剤の凸部のみが相手材と摺動する
上に、バインダに保持されている固体潤滑剤の部分が小
さいからである。The solid lubricant has an average particle size of 0.5 to 1
5 μm is preferred. Considering that the thickness of the lubricating film formed on the surface of the sliding member is generally 10 to 20 μm,
It is considered appropriate to set this range according to the thickness of the film thickness. If the particle size is too small compared to the film thickness, the effect is small, and if the particle size is large compared to the film thickness, the solid lubricant tends to fall off. This is because only the protrusion of the solid lubricant slides with the counterpart material, and the portion of the solid lubricant held by the binder is small.
【００２２】耐摩耗剤は、粒子状耐摩耗剤であっても繊
維状耐摩耗剤であっても摺動する相手材よりも硬質であ
ればほぼ同様に潤滑膜の耐摩耗性を向上する効果を有
し、公知のものから適切なものを選択して用いることが
できる。The effect of improving the wear resistance of the lubricating film is almost the same regardless of whether it is a particulate or fibrous anti-wear agent, as long as it is harder than the sliding counterpart. And an appropriate one selected from known ones can be used.
【００２３】粒子状耐摩耗剤としては、公知の粒子状耐
摩耗剤から適切なものを選択できるが、例えば窒化珪素
（Ｓｉ3Ｎ4）、アルミナ、炭化珪素、窒化ホウ素（Ｂ
Ｎ）、ダイヤモンド、珪酸ガラス及びシリカ（Ｓｉ
Ｏ2）等から１種又は２種以上を選択して用いることが
好ましい。As the particulate antiwear agent, an appropriate one can be selected from known particulate antiwear agents. For example, silicon nitride (Si 3 N 4 ), alumina, silicon carbide, boron nitride (B
N), diamond, silicate glass and silica (Si
It is preferable to use one or more selected from O 2 ) and the like.
【００２４】繊維状耐摩耗剤としては、公知の繊維状耐
摩耗剤から適切なものを選択できるが、例えば炭素繊
維、チタン酸カリウム繊維等から１種又は２種を選択し
て用いることが好ましい。As the fibrous antiwear agent, an appropriate one can be selected from known fibrous antiwear agents. For example, it is preferable to use one or two selected from carbon fiber, potassium titanate fiber and the like. .
【００２５】また粒子状耐摩耗剤と繊維状耐摩耗剤とを
同時に用いることもでき、粒子状耐摩耗剤と繊維状耐摩
耗剤のうちから２種以上を選択して用いることができ
る。The particulate anti-wear agent and the fibrous anti-wear agent can be used simultaneously, and two or more types can be selected from the particulate anti-wear agent and the fibrous anti-wear agent.
【００２６】上述したように耐摩耗剤は、１００重量部
のポリアミドイミド樹脂に対して１〜５００重量部であ
ることが好ましい。耐摩耗剤が１重量部未満であると耐
摩耗性の効果が小さく、耐摩耗剤を添加しない場合とさ
ほど変わらない。逆に耐摩耗剤が５００重量部を超える
と潤滑膜が相手材と摺動した場合に相手材に対する相手
攻撃性が大きくなるし、また摩擦係数が大きくなってし
まう。更にバインダであるポリアミドイミド樹脂が少な
くなるので、耐摩耗剤がバインダから脱落しやすくな
る。As described above, the amount of the antiwear agent is preferably 1 to 500 parts by weight based on 100 parts by weight of the polyamideimide resin. When the amount of the antiwear agent is less than 1 part by weight, the effect of the antiwear property is small, and the effect is not so different from the case where the antiwear agent is not added. Conversely, if the amount of the antiwear agent exceeds 500 parts by weight, when the lubricating film slides with the counterpart material, the counterpart material's aggressiveness against the counterpart material increases, and the friction coefficient increases. Further, since the amount of the polyamide-imide resin as the binder is reduced, the anti-wear agent is easily dropped from the binder.
【００２７】具体的には１００重量部のポリアミドイミ
ド樹脂、例えばＨＰＣ４２５０に対して、窒化珪素（Ｓ
ｉ3Ｎ4）が１〜７重量部であることが更に好ましい。こ
の範囲が耐摩耗性を向上し、また摩擦係数も低い最も良
好な特性を示す。Specifically, 100 parts by weight of a polyamideimide resin, for example, HPC4250, was added to silicon nitride (S
i 3 N 4 ) is more preferably 1 to 7 parts by weight. This range improves the wear resistance and shows the best characteristics with a low coefficient of friction.
【００２８】なお粒子状耐摩耗剤の平均粒径は、０．１
〜１０μｍであることが好ましい。摺動部材の表面に形
成される潤滑膜の膜厚が概ね１０〜２０μｍであること
を考慮すると、膜厚の厚さに応じて、この範囲にするの
が妥当と考えられる。粒径が膜厚と比較して小さいと耐
摩耗性の効果が小さいし、また粒径が膜厚と比較して大
きいと相手攻撃性が増大してしまう。更に粒子状耐摩耗
剤がバインダから脱落しやすくなる。The average particle size of the particulate antiwear agent is 0.1
It is preferably from 10 to 10 μm. Considering that the thickness of the lubricating film formed on the surface of the sliding member is approximately 10 to 20 μm, it is considered appropriate to set this range according to the thickness of the film. If the particle size is smaller than the film thickness, the effect of wear resistance is small, and if the particle size is larger than the film thickness, the aggressiveness of the partner increases. Further, the particulate antiwear agent easily falls off the binder.
【００２９】繊維状耐摩耗剤の平均繊維径は、０．１〜
１０μｍであることが好ましく、また平均繊維長は、５
〜１００μｍであることが好ましい。繊維径、繊維長が
膜厚と比較して小さいと耐摩耗性の効果が小さいし、ま
た繊維径、繊維長が膜厚と比較して大きいと相手攻撃性
が増大してしまう。The average fiber diameter of the fibrous antiwear agent is from 0.1 to
Preferably, the average fiber length is 5 μm.
It is preferably about 100 μm. If the fiber diameter and the fiber length are smaller than the film thickness, the effect of wear resistance is small, and if the fiber diameter and the fiber length are larger than the film thickness, the aggressiveness of the partner increases.
【００３０】以下において本発明の摺動部材用組成物の
製造方法について説明する。本発明の摺動部材用組成物
の調整するには、適切な有機溶剤を選択して用いること
ができる。粘度を調整して混合を容易にするためであ
る。従ってポリアミドイミド樹脂を熔解することができ
る有機溶媒であれば特に制限なく用いることができる。
例えば１００重量部のポリアミドイミド樹脂に対して１
００〜５００重量部のＮＭＰ（Ｎ−メチル−２−ピロリ
ドン）を用いてポリアミドイミド樹脂を溶解することが
できる。また１００重量部のＮＭＰに対して４０重量部
以下のキシレン等の芳香族系溶剤、メチルエチルケトン
等のケトン系溶剤を加えた混合溶剤を用いてポリアミド
イミド樹脂を溶解することができる。この場合において
も１００重量部のポリアミドイミド樹脂に対して、１０
０〜５００重量部のこれらの混合溶剤を用いることがで
きる。Hereinafter, a method for producing the composition for a sliding member of the present invention will be described. To adjust the composition for a sliding member of the present invention, an appropriate organic solvent can be selected and used. This is because the viscosity is adjusted to facilitate mixing. Therefore, any organic solvent capable of dissolving the polyamideimide resin can be used without any particular limitation.
For example, for 100 parts by weight of polyamideimide resin, 1
The polyamideimide resin can be dissolved by using 00 to 500 parts by weight of NMP (N-methyl-2-pyrrolidone). Further, the polyamideimide resin can be dissolved using a mixed solvent in which an aromatic solvent such as xylene and a ketone solvent such as methyl ethyl ketone are added in an amount of 40 parts by weight or less to 100 parts by weight of NMP. Also in this case, 10 parts by weight of the polyamide-imide resin
0 to 500 parts by weight of these mixed solvents can be used.
【００３１】次にポリアミドイミド樹脂を溶解した溶液
に固体潤滑剤及び耐摩耗剤を加え、ボールミル等で固体
潤滑剤及び耐摩耗剤を適切な時間例えば８時間分散させ
て本発明の摺動部材用組成物を調整することができる。Next, a solid lubricant and an antiwear agent are added to the solution in which the polyamideimide resin is dissolved, and the solid lubricant and the antiwear agent are dispersed by a ball mill or the like for an appropriate time, for example, 8 hours. The composition can be adjusted.
【００３２】以下において本発明の摺動部材用組成物に
よって潤滑膜を被膜する方法について説明する。一般に
有機溶剤を用いて調整した本発明の摺動部材用組成物を
エアースプレー等を用いて摺動面に塗布して、ポリアミ
ドイミド樹脂を硬化することができる温度即ち１８０〜
２７０℃程度で焼成して潤滑膜を形成することができ
る。例えば電気炉等で１８０〜２００℃で１００分間焼
成して潤滑膜を形成することが好ましい。Hereinafter, a method for coating a lubricating film with the composition for a sliding member of the present invention will be described. In general, the composition for a sliding member of the present invention prepared using an organic solvent is applied to a sliding surface using an air spray or the like, and the temperature at which the polyamideimide resin can be cured, that is, 180 to
By firing at about 270 ° C., a lubricating film can be formed. For example, it is preferable to form a lubricating film by baking at 180 to 200 ° C. for 100 minutes in an electric furnace or the like.
【００３３】この場合摺動部材用組成物が塗布される摺
動面をあらかじめ脱脂して表面の汚れ、油分等を除去し
た後、５０〜１２０℃でプレヒートしておくことが好ま
しい。予めプレヒートするのは塗布された被膜のはじ
き、垂れがなく均一で良好な被膜が得ることができるか
らである。In this case, it is preferable that the sliding surface on which the composition for the sliding member is applied is previously degreased to remove dirt and oil on the surface, and then preheated at 50 to 120 ° C. The reason why the pre-heating is performed in advance is that a uniform and good coating can be obtained without repelling or sagging of the applied coating.
【００３４】[0034]
【実施例】（ポリアミドイミド樹脂の比較試験）始めに
摺動部材用組成物に用いられるバインダの比較試験を行
った。３種類のポリアミドイミド樹脂（ＰＡＩ）を用い
て比較を行った。１つは本発明の摺動部材用組成物に用
いることができるポリアミドイミド樹脂である。他の２
つのうちの１つは引張強度及び縦弾性係数が本発明の数
値範囲を超えるために本発明の摺動部材用組成物に用い
ることができないポリアミドイミド樹脂であり、もう一
つは縦弾性係数が本発明の数値範囲未満であるために本
発明の摺動部材用組成物に用いることができないポリア
ミドイミド樹脂である。これら３種類のポリアミドイミ
ド樹脂について摩耗量及び焼き付き荷重について試験し
た。EXAMPLES (Comparative Test of Polyamideimide Resin) First, a comparative test of a binder used for a composition for a sliding member was performed. A comparison was made using three types of polyamideimide resins (PAI). One is a polyamideimide resin that can be used in the composition for a sliding member of the present invention. The other two
One of them is a polyamideimide resin which cannot be used in the composition for a sliding member of the present invention because the tensile strength and the modulus of longitudinal elasticity exceed the numerical range of the present invention, and the other has a modulus of longitudinal elasticity of It is a polyamideimide resin that cannot be used in the composition for a sliding member of the present invention because it is less than the numerical range of the present invention. These three types of polyamideimide resins were tested for the amount of wear and the seizure load.
【００３５】表１に各ポリアミドイミド樹脂の引張強
度、縦弾性係数、伸び率と試験の結果である摩耗量及び
焼き付き荷重を示す。Table 1 shows the tensile strength, the longitudinal elastic modulus, the elongation, the wear amount and the seizure load of the test results of each polyamide-imide resin.
【００３６】[0036]
【表１】 [Table 1]
【００３７】本発明のポリアミドイミド樹脂として、日
立化成株式社製の商品名ＨＰＣ４２５０を用いた。表１
に示すように、ＨＰＣ４２５０は、引張強度が８８．２
ＭＰａ、縦弾性係数が２００９ＭＰａ、伸び率が１７％
であった。比較のために他のポリアミドイミド樹脂とし
て、日立化成株式会社製の商品名ＨＰＣ４２８０と日立
化成株式会社製の商品名ＨＰＣ５０２０を用いた。ＨＰ
Ｃ４２８０は、引張強度が１１２．７ＭＰａ、縦弾性係
数が２９８９ＭＰａ、伸び率が１３％であった。またＨ
ＰＣ５０２０は、引張強度が８９．２ＭＰａ、縦弾性係
数が１９１１ＭＰａ、伸び率が１５％であった。As the polyamide-imide resin of the present invention, HPC4250 (trade name, manufactured by Hitachi Chemical Co., Ltd.) was used. Table 1
As shown in the figure, HPC4250 has a tensile strength of 88.2.
MPa, longitudinal modulus 2009MPa, elongation 17%
Met. For comparison, HPC4280 (trade name, manufactured by Hitachi Chemical Co., Ltd.) and HPC5020 (trade name, manufactured by Hitachi Chemical Co., Ltd.) were used as other polyamideimide resins. HP
C4280 had a tensile strength of 112.7 MPa, a longitudinal elastic modulus of 2989 MPa, and an elongation of 13%. Also H
PC5020 had a tensile strength of 89.2 MPa, a modulus of longitudinal elasticity of 1911 MPa, and an elongation of 15%.
【００３８】ＨＰＣ４２５０は摩耗量が平均５．５μｍ
で、焼き付き荷重が４９００Ｎであった。ＨＰＣ４２８
０は摩耗量が平均１２．３μｍで、焼き付き荷重が４９
００Ｎであった。ＨＰＣ５０２０は摩耗量が１３．２μ
ｍで、焼き付き荷重が４５０８Ｎであった。HPC4250 has an average wear of 5.5 μm.
And the seizure load was 4900N. HPC428
0 indicates that the average wear amount is 12.3 μm and the seizure load is 49.
00N. HPC5020 has a wear amount of 13.2μ
m and the seizure load was 4508N.
【００３９】このことから、本発明で用いるポリアミド
イミド樹脂は、比較のために用いたポリアミドイミド樹
脂と比較して、耐摩耗性及び耐焼き付き性に優れている
ことが分かる。This indicates that the polyamide-imide resin used in the present invention is more excellent in abrasion resistance and seizure resistance than the polyamide-imide resin used for comparison.
【００４０】なお摩耗量の測定試験は、以下のように行
った。試験機としてファレックス(FALEX)社製のブロッ
クオンリング(BLOCK-ON-RING)試験機を用いた。ブロッ
クオンリング試験機１０の概要を図１に示す。ブロック
１１の表面に上述した３種類のポリアミドイミド樹脂を
それぞれコーティングしてポリアミドイミド樹脂被膜１
２を形成した。このポリアミドイミド樹脂被膜１２を形
成したブロック１１を、粗さ約１μｍＲＺの焼き入れ鋼
（ＨＶ７００〜７５０）からなるφ３５ｍｍの円筒形状
の相手材１３に９８Ｎの力で荷重し、１０分間評価試験
を行った。潤滑条件は油浴で、円筒形である相手材１３
の回転数は３０ｒｐｍであった。評価試験後、ポリアミ
ドイミド樹脂被膜１２の表面を粗さ計を用いて測定し、
その断面形状を求めた。そしてこのデータから摩耗量を
求めた。The measurement test of the amount of wear was performed as follows. A block-on-ring tester manufactured by FALEX was used as a tester. FIG. 1 shows an outline of the block-on-ring test machine 10. The surface of the block 11 is coated with the above-described three types of polyamide-imide resins, respectively, to form a polyamide-imide resin coating 1
2 was formed. The block 11 on which the polyamide-imide resin film 12 is formed is loaded with a force of 98 N on a cylindrical counterpart material 13 of φ35 mm made of hardened steel (HV700 to 750) having a roughness of about 1 μm RZ, and an evaluation test is performed for 10 minutes. Was. The lubrication condition is an oil bath and the cylindrical counterpart material 13
Was 30 rpm. After the evaluation test, the surface of the polyamideimide resin coating 12 was measured using a roughness meter,
The cross-sectional shape was determined. Then, the wear amount was determined from the data.
【００４１】焼き付き荷重の測定試験は、スラスト試験
機を用いて行った。スラスト試験機２０の概要を図２に
示す。焼き入れ鋼からなる平板状の基材２１の上に上述
した３種類のポリアミドイミド樹脂をそれぞれコーティ
ングしてポリアミドイミド樹脂被膜２２を形成した。こ
のときの膜厚はそれぞれ概ね１０μｍであった、そして
粗さ約１μｍＲＺの焼き入れ鋼（ＨＶ５００〜６００）
からなる円筒形状（外径：φ２５ｍｍ、内径：φ２０ｍ
ｍ）の相手材２３の端面を油浴の潤滑条件で、平板状の
基材２１を１０００ｒｐｍで回転させながら、９８Ｎか
ら１９６Ｎずつ荷重を増加して、摩擦係数が０．３を越
えたときをもって、焼き付き荷重とした。The test for measuring the seizure load was performed using a thrust tester. The outline of the thrust tester 20 is shown in FIG. The above-described three types of polyamideimide resins were respectively coated on a flat base material 21 made of quenched steel to form a polyamideimide resin film 22. The film thickness at this time was about 10 μm each, and the hardness was about 1 μm RZ hardened steel (HV500-600).
Cylindrical shape (outer diameter: φ25mm, inner diameter: φ20m)
m) While rotating the flat base member 21 at 1000 rpm under the lubrication condition of the oil bath on the end surface of the mating member 23, increasing the load from 98 N to 196 N, and when the friction coefficient exceeds 0.3 And the seizure load.
【００４２】（摺動部材用組成物の比較）本発明の摺動
部材用組成物の実施例１及び実施例２、更に比較のため
に摺動部材用組成物（比較例）を用いて、摩耗量、摩擦
係数及びエンジン駆動トルクを測定して比較した。なお
実施例１、実施例２及び比較例の組成については表２に
示す。(Comparison of Composition for Sliding Member) Using the composition for a sliding member of the present invention in Examples 1 and 2, and for comparison, the composition for a sliding member (Comparative Example) was used. The amount of wear, the coefficient of friction, and the engine driving torque were measured and compared. Table 2 shows the compositions of Example 1, Example 2, and Comparative Example.
【００４３】[0043]
【表２】 [Table 2]
【００４４】実施例１は、表２に記載したように、バイ
ンダとして縦弾性係数が２００９ＭＰａ、引張強度が８
８．２ＭＰａ、伸び率が１７％であるポリアミドイミド
樹脂（ＰＡＩ）（日立化成株式会社製、商品名ＨＰＣ４
２５０）を用いた。固体潤滑剤は、ポリテトラフルオロ
エチレン（ＰＴＦＥ）（ダイキン工業株式会社製、商品
名ルブロンＬ−２）を用いた。粒子状耐摩耗剤として平
均粒径が１．５μｍであるＳｉ3Ｎ4（信越化学工業株式
会社製、商品名ＫＳＮ−１０Ｍ−ＴＸ）を用いた。配合
割合はＰＡＩを１００重量部として、ＰＴＦＥは１０重
量部、Ｓｉ3Ｎ4は５重量部とした。In Example 1, as shown in Table 2, the binder had a longitudinal elastic modulus of 2009 MPa and a tensile strength of 8
Polyamide-imide resin (PAI) having 8.2 MPa and elongation of 17% (trade name: HPC4, manufactured by Hitachi Chemical Co., Ltd.)
250) was used. Polytetrafluoroethylene (PTFE) (trade name: Lubron L-2, manufactured by Daikin Industries, Ltd.) was used as the solid lubricant. Si 3 N 4 having an average particle size of 1.5 μm (trade name: KSN-10M-TX, manufactured by Shin-Etsu Chemical Co., Ltd.) was used as the particulate antiwear agent. The mixing ratio was 100 parts by weight of PAI, 10 parts by weight of PTFE, and 5 parts by weight of Si 3 N 4 .
【００４５】実施例２として、表２に記載したように、
バインダとして縦弾性係数が２４５０ＭＰａ、引張強度
が９３．１ＭＰａ、伸び率が１５％であるポリアミドイ
ミド樹脂（ＰＡＩ）（試作品）を用いた。固体潤滑剤
は、ＰＴＦＥ（ダイキン工業株式会社製、商品名ルブロ
ンＬ−２）とグラファイト（日本黒鉛工業株式会社製、
商品名Ｊ−ＡＣＰ）を用いた。粒子状耐摩耗剤として、
平均粒径が５μｍであるＳｉ3Ｎ4（信越化学工業株式会
社製、商品名ＫＳＮ−１０Ｌ）を用いた。繊維状耐摩耗
剤として、繊維径が０．５μｍで繊維長が１５μｍであ
るチタン酸カリウム繊維（大塚化学薬品工業株式会社
製、商品名ティスモＤ）を用いた。配合割合はＰＡＩを
１００重量部として、ＰＴＦＥは５重量部、グラファイ
トは１５重量部、チタン酸カリウムは５重量部、Ｓｉ3
Ｎ4は５重量部とした。As Example 2, as described in Table 2,
As the binder, a polyamideimide resin (PAI) (prototype) having a longitudinal elastic modulus of 2450 MPa, a tensile strength of 93.1 MPa, and an elongation of 15% was used. Solid lubricants include PTFE (manufactured by Daikin Industries, Ltd., trade name: Lubron L-2) and graphite (manufactured by Nippon Graphite Industries, Ltd.)
(Trade name: J-ACP) was used. As a particulate antiwear agent,
Si 3 N 4 having an average particle diameter of 5 μm (trade name KSN-10L, manufactured by Shin-Etsu Chemical Co., Ltd.) was used. As the fibrous antiwear agent, potassium titanate fiber having a fiber diameter of 0.5 μm and a fiber length of 15 μm (Tismo D manufactured by Otsuka Chemical Co., Ltd.) was used. The mixing ratio is 100 parts by weight of PAI, 5 parts by weight of PTFE, 15 parts by weight of graphite, 5 parts by weight of potassium titanate, Si 3
N 4 was 5 parts by weight.
【００４６】比較例として、表２に記載したように、バ
インダとして縦弾性係数が３０３８ＭＰａ、引張強度が
１１７．６ＭＰａ、伸び率が１３％であるポリアミドイ
ミド樹脂（ＰＡＩ）（試作品）を用いた。固体潤滑剤
は、グラファイト（日本黒鉛工業株式会社製、商品名Ｊ
−ＡＣＰ）とＭｏＳ2（トンプソンクリークマイニング
（カナダ）社製、商品名ウルトラピュア）を用いた。耐
摩耗剤は用いなかった。配合割合は、ＰＡＩを１００重
量部として、グラファイトは１０重量部、ＭｏＳ 2を１
００重量部とした。As a comparative example, as shown in Table 2,
The longitudinal elastic modulus is 3038MPa and the tensile strength is
Polyamide with 117.6 MPa and elongation of 13%
Mid resin (PAI) (prototype) was used. Solid lubricant
Is graphite (manufactured by Nippon Graphite Industry Co., Ltd., trade name J
-ACP) and MoSTwo(Thompson Creek Mining
(Canada), trade name Ultra Pure). Endurance
No abrasive was used. The mixing ratio is 100 PAI
10 parts by weight of graphite, MoS Two1
00 parts by weight.
【００４７】上述した実施例１、実施例２及び比較例の
成分について、それぞれＰＡＩが１００重量部に対し
て、４００重量部のＮＭＰを用いてＰＡＩを溶解した溶
液に固体潤滑剤及び耐摩耗剤を投入して、ボールミルで
８時間分散して摺動部材用組成物を調整した。With respect to the components of Examples 1, 2 and Comparative Examples described above, a solid lubricant and an antiwear agent were added to a solution in which PAI was dissolved using 400 parts by weight of NMP with respect to 100 parts by weight of PAI. And dispersed in a ball mill for 8 hours to prepare a composition for a sliding member.
【００４８】次にこのように調整した摺動部材用組成物
を摩耗量、摩擦係数、エンジン駆動トルクを測定するた
めのテストピース等に以下のように潤滑膜を形成した。
まずテストピース等の摺動面を脱脂して表面の汚れ、油
分を除去した後、１００℃でプレヒートした。プレヒー
トしたテストピース等の摺動面にエアースプレーで上述
のように調整した摺動部材用組成物を塗布して塗膜を形
成し、その後電気オーブンを用いて１８０〜２００℃で
１００分間焼成して、潤滑膜を形成した。潤滑膜の厚さ
を概ね１０〜１５μｍであった。Next, a lubricating film was formed on the test piece for measuring the amount of abrasion, the coefficient of friction, and the engine driving torque using the thus prepared composition for a sliding member as follows.
First, the sliding surface of a test piece or the like was degreased to remove dirt and oil on the surface, and then preheated at 100 ° C. The composition for a sliding member adjusted as described above is applied to a sliding surface of a preheated test piece or the like by air spray to form a coating film, and then baked at 180 to 200 ° C. for 100 minutes using an electric oven. Thus, a lubricating film was formed. The thickness of the lubricating film was approximately 10 to 15 μm.
【００４９】摩耗量の測定試験は、以下のように行っ
た。先のポリアミドイミド樹脂の摩耗量の比較試験と同
一のファレックス(FALEX)社製のブロックオンリング(BL
OCK-ON-RING)試験機１０を用いた。従って図１を用いて
本測定試験を説明する。ブロック１１の表面に上述した
３種類の摺動部材用組成物をそれぞれコーティングして
潤滑膜１４を形成した。この潤滑膜１４を形成したブロ
ック１１を、粗さ約１μｍＲＺの焼き入れ鋼（ＨＶ７０
０〜７５０）からなるφ３５ｍｍの円筒形状の相手材１
３に９８Ｎの力で荷重し、１０分間評価試験を行った。
潤滑条件は油浴で、相手材１３の回転数は３０ｒｐｍで
あった。評価試験後、潤滑膜１４の表面を粗さ計を用い
て測定して、その断面形状を求めた。そしてこのデータ
から摩耗量を算出した。The measurement test of the amount of wear was performed as follows. The same FALEX block-on-ring (BL)
OCK-ON-RING) testing machine 10 was used. Therefore, the measurement test will be described with reference to FIG. The lubricating film 14 was formed by coating the surface of the block 11 with the above-described three types of compositions for sliding members. The block 11 on which the lubricating film 14 is formed is hardened steel (HV70) having a roughness of about 1 μm RZ.
0-750) φ35 mm cylindrical counterpart material 1
3 was loaded with a force of 98 N, and an evaluation test was performed for 10 minutes.
The lubrication condition was an oil bath, and the rotation speed of the counterpart material 13 was 30 rpm. After the evaluation test, the surface of the lubricating film 14 was measured using a roughness meter to determine its cross-sectional shape. Then, the wear amount was calculated from the data.
【００５０】摩擦係数の測定試験は、先のポリアミドイ
ミド樹脂の焼き付き荷重の測定試験と同一のスラスト試
験機２０を用いて行った。そこで図２を用いて、本測定
試験を説明する。焼き入れ鋼からなる平板状の基材２１
の上に上述した３種類の摺動部材用組成物をそれぞれコ
ーティングして潤滑膜２４を形成した。このときの膜厚
はそれぞれ概ね１０μｍであった、そして図２に示すよ
うに、粗さ約１μｍＲＺの焼き入れ鋼（ＨＶ５００〜６
００）からなる円筒形状（外径：φ２５ｍｍ、内径：２
０ｍｍ）の相手材２３の端面を１９６０Ｎの力で荷重
し、油浴の潤滑条件で、平板状の基材２１を１０００ｒ
ｐｍで回転させて、摩擦係数を測定した。The test for measuring the coefficient of friction was performed using the same thrust tester 20 as the test for measuring the seizure load of the polyamideimide resin. Thus, the measurement test will be described with reference to FIG. Flat base material 21 made of hardened steel
Each of the above-mentioned three types of compositions for a sliding member was coated thereon to form a lubricating film 24. The film thickness at this time was approximately 10 μm, and as shown in FIG. 2, a hardened steel (HV500-6
00) (outer diameter: φ25 mm, inner diameter: 2)
0 mm), the end face of the mating member 23 is loaded with a force of 1960 N, and the lubricating condition of the oil bath is applied to the flat base material 21 for 1000 r.
By rotating at pm, the coefficient of friction was measured.
【００５１】エンジン駆動トルクについては、エンジン
のピストンスカート部に実施例１、実施例２及び比較例
の摺動部材用組成物の潤滑膜を形成したピストンを組み
付けて、エンジン駆動トルクを測定した。測定方法はク
ランクシャフトの駆動トルクをトルク計で測定する方法
で行った。クランクシャフトの駆動はモータ駆動で行っ
た。測定条件は直列４気筒２０００ｃｃエンジンを２０
００ｒｐｍの回転数を与える条件とし、動弁系（シリン
ダヘッド等）は取り外した状態で測定した。The engine driving torque was measured by assembling the pistons having the lubricating films of the compositions for the sliding members of Examples 1, 2 and Comparative Examples on the piston skirt portion of the engine, and measuring the engine driving torque. The measurement was performed by measuring the driving torque of the crankshaft with a torque meter. The crankshaft was driven by a motor. The measurement conditions were 20 in-line 4-cylinder 2000cc engine.
The conditions were such that a rotation speed of 00 rpm was given, and the measurement was performed with the valve train (cylinder head and the like) removed.
【００５２】測定結果を表３に示す。なおエンジン駆動
トルクの比較については、比較例を１として、実施例１
及び実施例２の数値を示した。Table 3 shows the measurement results. As for the comparison of the engine drive torque, the comparative example was set to 1 and
And the numerical value of Example 2 was shown.
【００５３】[0053]
【表３】 [Table 3]
【００５４】実施例１は、摩耗量が６．１μｍで、摩擦
係数が０．０３で、エンジン駆動トルクが０．９であ
る。実施例２は、摩耗量が７．４μｍで、摩擦係数が
０．０４で、エンジン駆動トルクが０．９５である。比
較例は、摩耗量が１３．４で、摩擦係数が０．０６で、
エンジン駆動トルクが１である。In the first embodiment, the wear amount is 6.1 μm, the friction coefficient is 0.03, and the engine driving torque is 0.9. In Example 2, the wear amount was 7.4 μm, the friction coefficient was 0.04, and the engine driving torque was 0.95. In the comparative example, the wear amount was 13.4 and the friction coefficient was 0.06.
The engine drive torque is 1.
【００５５】この測定結果から、実施例１及び実施例２
はいずれも比較例より摩耗量が少なく、耐摩耗性が優れ
ていることが分かる。また実施例１及び実施例２は摩擦
係数が小さく、摩擦特性が優れていることが分かる。ま
たエンジン駆動トルクについても実施例１及び実施例２
の方が比較例より小さく、効果があることが分かる。From the measurement results, it was found that Examples 1 and 2
It can be seen that in each case, the wear amount was smaller than that of the comparative example, and the wear resistance was excellent. Further, it can be seen that the friction coefficients of Examples 1 and 2 are small and the friction characteristics are excellent. In addition, the engine driving torques of the first and second embodiments are also described.
Is smaller than the comparative example, and it can be seen that there is an effect.
【００５６】[0056]
【発明の効果】本発明の摺動部材用組成物を用いて摺動
面に形成した潤滑膜は、耐摩耗性、耐焼き付き性に優
れ、且つ摩擦係数の低減によって、長期間概ね従来の樹
脂からなる潤滑膜の２倍以上の期間すぐれた効果を得る
ことができる。The lubricating film formed on the sliding surface using the composition for a sliding member of the present invention has excellent abrasion resistance and seizure resistance, and has a reduced friction coefficient. An excellent effect can be obtained for a period more than twice as long as the lubricating film made of
【図１】 ブロックオンリング試験機の概要を示す図で
ある。FIG. 1 is a diagram showing an outline of a block-on-ring testing machine.
【図２】 スラスト試験機の概要を示す図である。FIG. 2 is a diagram showing an outline of a thrust tester.
１０：ブロックオンリング試験機 １１：ブロック １２：ポリアミドイミド樹脂被膜 １３：相手材 １４：潤滑膜 ２０：スラスト試験機 ２１：平板状の基材 ２２：ポリアミドイミド樹脂被膜 ２３：相手材 ２４：潤滑膜 10: Block-on-ring testing machine 11: Block 12: Polyamide imide resin coating 13: Mating material 14: Lubricating film 20: Thrust testing machine 21: Flat base material 22: Polyamide imide resin coating 23: Mating material 24: Lubricating film
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｌ 27/12 Ｃ０８Ｌ 27/12 79/08 79/08 Ｃ Ｆ０２Ｆ 1/00 Ｆ０２Ｆ 1/00 Ｄ Ｆ１６Ｊ 1/04 Ｆ１６Ｊ 1/04 1/08 1/08 // Ｃ１０Ｎ 20:00 Ｃ１０Ｎ 20:00 Ｚ 30:06 30:06 40:02 40:02 50:08 50:08 (72)発明者 不破 良雄 愛知県豊田市トヨタ町１番地 トヨタ自動 車株式会社内 (72)発明者 瀬古 昇一 愛知県豊田市トヨタ町１番地 トヨタ自動 車株式会社内 (72)発明者 池田 徳行 神奈川県横浜市戸塚区名瀬町84 タカタビ ル エスティーティー株式会社内 (72)発明者 川田 剛宏 神奈川県横浜市戸塚区名瀬町84 タカタビ ル エスティーティー株式会社内 Ｆターム(参考） 3G024 AA24 HA13 3J044 AA02 AA12 BB23 BB26 BB31 BB37 BB40 BC04 DA09 4H104 AA04A AA04C AA11C AA13C AA19A AA21C AA22C AA23C AA26C CD01A CE13C EA01C EA08A EA08C EA10C FA01 FA03 FA06 LA03 PA01 QA11 QA21 4J002 BD14X BD15X CM04W DA017 DE147 DG026 DJ017 DK007 DL007 EJ007 FA047 FA087 FD17X FD176 FD207 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C08L 27/12 C08L 27/12 79/08 79/08 C F02F 1/00 F02F 1/00 D F16J 1 / 04 F16J 1/04 1/08 1/08 // C10N 20:00 C10N 20:00 Z 30:06 30:06 40:02 40:02 50:08 50:08 (72) Inventor Yoshio Fuwa Toyota, Aichi Prefecture 1 Toyota Town, Toyota City (72) Inventor Shoichi Seki 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation (72) Inventor Noriyuki Ikeda 84 Naze-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Esteety Co., Ltd. (72) Inventor Takehiro Kawada 84, Nase-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture F-term (reference) 3G024 AA24 HA13 3J044 AA02 AA12 BB23 BB2 6 BB31 BB37 BB40 BC04 DA09 4H104 AA04A AA04C AA11C AA13C AA19A AA21C AA22C AA23C AA26C CD01A CE13C EA01C EA08A EA08C EA10C FA01 FA03 FA06 LA03 PA01 QA11 QA21 017007 EB07 017
Claims (13)
ミド樹脂に分散された固体潤滑剤及び耐摩耗剤とを含む
摺動部材用組成物であって、 前記ポリアミドイミド樹脂は、引張強度が７８．４〜９
８ＭＰａであり、縦弾性係数が１９６０〜２９４０ＭＰ
ａであり、伸び率が１０〜２０％であることを特徴とす
る摺動部材用組成物。1. A composition for a sliding member comprising a polyamideimide resin and a solid lubricant and an antiwear agent dispersed in the polyamideimide resin, wherein the polyamideimide resin has a tensile strength of 78.4 or more. 9
8MPa, longitudinal modulus of elasticity is 1960-2940MP
a. A composition for a sliding member, which has an elongation of 10 to 20%.
ポリアミドイミド樹脂に対して、１〜５００重量部であ
る請求項１記載の摺動部材用組成物。2. The composition for a sliding member according to claim 1, wherein the solid lubricant is used in an amount of 1 to 500 parts by weight based on 100 parts by weight of the polyamideimide resin.
及び黒鉛の１種、２種又は３種である請求項１又は２記
載の摺動部材用組成物。3. The composition for a sliding member according to claim 1, wherein the solid lubricant is one, two, or three of a sulfide, a fluorine compound, and graphite.
耐摩耗剤に対して、前記硫化物が０〜２０００重量部
で、前記フッ素化合物が０〜２０００重量部で。前記黒
鉛が０〜２０００重量部であって、前記固体潤滑剤と前
記耐摩耗剤の重量比が１／１００〜６０００／１００で
ある請求項３記載の摺動部材用組成物。4. The solid lubricant contains 0 to 2000 parts by weight of the sulfide and 0 to 2000 parts by weight of the fluorine compound based on 100 parts by weight of the antiwear agent. The composition for a sliding member according to claim 3, wherein the graphite is 0 to 2000 parts by weight, and a weight ratio of the solid lubricant to the antiwear agent is 1/100 to 6000/100.
硫化タングステンの１種又は２種である請求項３又は４
記載の摺動部材用組成物。5. The method according to claim 1, wherein the sulfide comprises molybdenum disulfide and 2 molybdenum.
5. The method according to claim 3, wherein the sulfide is one or two of tungsten sulfide.
The composition for a sliding member according to the above.
ロエチレン、テトラフルオロエチレン-パーフルオロア
ルキルビニルエーテル共重合体、テトラフルオロエチレ
ン-ヘキサフルオロフロピレン共重合体、テトラフルオ
ロエチレン-エチレン共重合体、ポリビニリデンフルオ
ライド及びリクロロトリフルオロエチレンの１種又は２
種以上である請求項３、４又は５記載の摺動部材用組成
物。6. The fluorine compound is polytetrafluoroethylene, tetrafluoroethylene-perfluoroalkylvinyl ether copolymer, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-ethylene copolymer, polyvinylidene One or two of fluoride and chlorotrifluoroethylene
The composition for a sliding member according to claim 3, wherein the composition is at least one kind.
１５μｍである請求項１、２、３、４、５又は６記載の
摺動部材用組成物。7. The solid lubricant has an average particle diameter of 0.5 to 0.5.
The composition for a sliding member according to claim 1, 2, 3, 4, 5, or 6, which has a thickness of 15 µm.
リアミドイミド樹脂に対して、１〜５００重量部である
請求項１、２、３、４、５、６又は７記載の摺動部材用
組成物。8. The sliding member according to claim 1, wherein the amount of the antiwear agent is 1 to 500 parts by weight based on 100 parts by weight of the polyamideimide resin. Composition.
維状耐摩耗剤の一種又は２種以上である請求項８記載の
摺動部材用組成物。9. The composition for a sliding member according to claim 8, wherein the antiwear agent is one or more of a particulate antiwear agent and a fibrous antiwear agent.
ルミナ、炭化珪素、窒化ホウ素、ダイヤモンド、珪酸ガ
ラス及びシリカの１種又は２種以上である請求項９記載
の摺動部材用組成物。10. The composition for a sliding member according to claim 9, wherein the particulate antiwear agent is at least one of silicon nitride, alumina, silicon carbide, boron nitride, diamond, silicate glass, and silica. .
〜１０μｍである請求項９又は１０記載の摺動部材用組
成物。11. The particulate antiwear agent has a particle size of 0.1.
The composition for a sliding member according to claim 9, wherein the composition is 10 to 10 μm.
タン酸カリウム繊維の１種又は２種である請求項９、１
０又は１１記載の摺動部材用組成物。12. The fibrous antiwear agent is one or two of carbon fiber and potassium titanate fiber.
12. The composition for a sliding member according to 0 or 11.
１〜１０μｍであり、繊維長が５〜１００μｍである請
求項９、１０、１１又は１２記載の摺動部材用組成物。13. The fibrous antiwear agent having a fiber diameter of 0.1.
The composition for a sliding member according to claim 9, 10, 11, or 12, wherein the composition is 1 to 10 µm and the fiber length is 5 to 100 µm.
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| JP2000238646A JP2002053883A (en) | 2000-08-07 | 2000-08-07 | Composition for sliding member |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2000238646A JP2002053883A (en) | 2000-08-07 | 2000-08-07 | Composition for sliding member |
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| JP2002053883A true JP2002053883A (en) | 2002-02-19 |
| JP2002053883A5 JP2002053883A5 (en) | 2005-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000238646A Pending JP2002053883A (en) | 2000-08-07 | 2000-08-07 | Composition for sliding member |
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