JPH0671810A - Composite slidable material - Google Patents
Composite slidable materialInfo
- Publication number
- JPH0671810A JPH0671810A JP22980892A JP22980892A JPH0671810A JP H0671810 A JPH0671810 A JP H0671810A JP 22980892 A JP22980892 A JP 22980892A JP 22980892 A JP22980892 A JP 22980892A JP H0671810 A JPH0671810 A JP H0671810A
- Authority
- JP
- Japan
- Prior art keywords
- polyimide resin
- base material
- sliding
- resin
- slidable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Sliding-Contact Bearings (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は軸受などの摺動部材の
素材であって複数の材料からなる複合摺動材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite sliding material made of a plurality of materials, which is a material for sliding members such as bearings.
【０００２】[0002]
【従来の技術】一般に、自動車、産業機械等の軸受や案
内部品等は、摺接状態で相手材の案内や支持を行なうも
のであるが、このような摺動部材用の素材として、ポリ
イミド樹脂系摺動材が知られている。2. Description of the Related Art Generally, bearings and guide parts for automobiles, industrial machines, etc. guide and support a mating material in a sliding contact state. As a material for such a sliding member, a polyimide resin is used. System sliding materials are known.
【０００３】ポリイミド樹脂系摺動材は、テトラカルボ
ン酸二無水物とジアミンの反応により得られるポリイミ
ド樹脂に、四フッ化エチレン樹脂、グラファイト等の充
填剤を添加したもので、特に耐熱性に優れている。前記
ポリイミド樹脂としてはデュポン社製：ＶＥＳＰＥＬな
どの非熱可塑性のものが採用できるが、このものは、明
瞭なガラス転移点を有しないものであって、成形法が焼
結による圧縮成形に限られている。したがって、前記の
摺動材は単独の樹脂組成物から成形されていた。The polyimide resin-based sliding material is obtained by adding a filler such as tetrafluoroethylene resin or graphite to a polyimide resin obtained by the reaction of tetracarboxylic dianhydride and diamine, and is particularly excellent in heat resistance. ing. As the polyimide resin, a non-thermoplastic resin such as VESPEL manufactured by DuPont can be used, but this resin does not have a clear glass transition point, and the molding method is limited to compression molding by sintering. ing. Therefore, the above-mentioned sliding material has been molded from a single resin composition.
【０００４】このようなポリイミド樹脂の成形性を改良
して溶融成形を可能にしたものとしては、主鎖に芳香族
エーテルを導入したものがあり、たとえば熱可塑性ポリ
イミド樹脂（三井東圧社製：Ｎｅｗ−ＴＰＩ）は、溶融
押出成形により種々の形状に加工できるものである。[0004] Examples of such a polyimide resin having improved moldability and capable of being melt-molded include those having an aromatic ether introduced into the main chain. For example, a thermoplastic polyimide resin (manufactured by Mitsui Toatsu Co., Ltd .: New-TPI) can be processed into various shapes by melt extrusion molding.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上記した従来
のポリイミド樹脂系の摺動材は、放熱性に劣るため、摺
動面が高温になり易く、このために耐摩耗性が低下する
という問題点がある。However, the above-mentioned conventional polyimide resin-based sliding material is inferior in heat dissipation, so that the sliding surface is apt to become hot, resulting in a decrease in wear resistance. There is a point.
【０００６】また、機械的強度のうち、特に耐荷重性が
充分でなく、３００〜７００ｋｇｆ／ｃｍ2 といった高
荷重の摺動条件に耐えることができないという問題点も
ある。Further, among the mechanical strength, particularly the load resistance is not sufficient, and there is a problem that it cannot withstand a high load sliding condition such as 300 to 700 kgf / cm 2 .
【０００７】そこで、この発明は、ポリイミド樹脂本来
の耐熱性を損なうことなく、耐荷重性を補った複合摺動
材とし、しかも高荷重の摺動条件でも摩耗量の少ないも
のとすることを課題としている。In view of the above, the present invention aims to provide a composite sliding material which complements the load resistance without impairing the heat resistance inherent to the polyimide resin, and which has a small amount of wear even under high load sliding conditions. I am trying.
【０００８】[0008]
【課題を解決するための手段】上記の課題を解決するた
め、この発明においては、金属製基材の表面に、下記式
で示される熱可塑性ポリイミド樹脂を主成分とする摺動
性シートを積層一体化してなる構成を採用したのであ
る。In order to solve the above problems, in the present invention, a slidable sheet containing a thermoplastic polyimide resin represented by the following formula as a main component is laminated on the surface of a metal base material. The integrated structure was adopted.
【０００９】記Note
【００１０】[0010]
【化２】 [Chemical 2]
【００１１】以下、その詳細を述べる。The details will be described below.
【００１２】この発明に用いる前記〔化２〕の式で示さ
れるポリイミド樹脂は、下記〔化３〕の式で示される
４，４’−ビス（３−アミノフェノキシ）ビフェニル
と、ピロメリット酸二無水物とを反応させることによっ
てポリアミド酸を生成させ、そのポリアミド酸を脱水環
化して得ることができ、熱可塑性を有して溶融成形が可
能であり、耐熱性、摩擦特性、耐摩耗性にも優れたもの
である。このようなポリイミド樹脂としては、三井東圧
化学社製「Ｎｅｗ ＴＰＩ」などを例示することができ
る。The polyimide resin represented by the formula [Chemical Formula 2] used in the present invention includes 4,4′-bis (3-aminophenoxy) biphenyl represented by the following Formula [Chemical Formula 3] and pyromellitic acid diester. Polyamic acid is generated by reacting with an anhydride, and the polyamic acid can be obtained by dehydration cyclization, and it can be melt-molded with thermoplasticity, and has heat resistance, friction characteristics, and abrasion resistance. Is also excellent. Examples of such a polyimide resin include “New TPI” manufactured by Mitsui Toatsu Chemicals, Inc. and the like.
【００１３】[0013]
【化３】 [Chemical 3]
【００１４】この発明に用いる金属製基材としては、軸
受けその他の摺動部材の成形材料として通常用いられる
鋼材、鋳鉄、銅、ニッケル、アルミニウム、鉛等の金属
またはこれらの合金であってよく、またその他の一般的
金属材料をも特に限定することなく使用できる。The metal base material used in the present invention may be a steel material usually used as a molding material for bearings or other sliding members, metals such as cast iron, copper, nickel, aluminum, lead or alloys thereof. Further, other general metal materials can be used without particular limitation.
【００１５】また、この発明の効果を損なわない限り各
種の充填剤を添加することもできる。このような充填剤
として、アラミド樹脂、ポリエーテルイミド樹脂、ポリ
エーテルサルフォン樹脂、ポリアミドイミド樹脂、耐熱
性ポリアミド樹脂、芳香族ポリエステル樹脂、シリコー
ン樹脂、フッ素樹脂などの有機質耐熱性高分子材料を始
めとし、亜鉛、アルミニウム、マグネシウム等の金属も
しくはその酸化物などの熱伝導改良用無機粉末、グラフ
ァイト、カーボンファイバー、ガラスビーズ、シリカバ
ルーン、珪藻土、石綿、炭酸マグネシウム、酸化カルシ
ウム、フッ化カルシウム、炭酸カルシウム、水酸化カル
シウム等の無機質粉末、二硫化モリブデン、カーボン、
マイカ、タルク、三酸化モリブデン等の潤滑性向上用無
機質粉末、及び酸化鉄、硫化カドミウム、セレン化カド
ミウム、カーボンブラック等の無機質顔料、シリコーン
オイル、エステルオイル、フッ素オイル、ポリフェニレ
ンエーテルオイル、ワックス、ステアリン酸亜鉛等の内
部潤滑的添加剤など数多くのものを例示することができ
る。Various fillers may be added as long as the effects of the present invention are not impaired. Examples of such fillers include organic heat-resistant polymer materials such as aramid resin, polyetherimide resin, polyether sulfone resin, polyamideimide resin, heat-resistant polyamide resin, aromatic polyester resin, silicone resin, and fluororesin. In addition, inorganic powder for improving heat conduction of metals such as zinc, aluminum and magnesium or oxides thereof, graphite, carbon fiber, glass beads, silica balloons, diatomaceous earth, asbestos, magnesium carbonate, calcium oxide, calcium fluoride, calcium carbonate , Inorganic powder such as calcium hydroxide, molybdenum disulfide, carbon,
Inorganic powders such as mica, talc and molybdenum trioxide for improving lubricity, and inorganic pigments such as iron oxide, cadmium sulfide, cadmium selenide and carbon black, silicone oil, ester oil, fluorine oil, polyphenylene ether oil, wax, stearin A large number of internal lubricant additives such as zinc acid can be exemplified.
【００１６】以上述べた熱可塑性ポリイミド樹脂と充填
剤の混合方法は、特に限定されるものではなく、原料を
個別に溶融混合機に供給してもよいし、あらかじめヘン
シェルミキサー、ボールミル、タンブラーミキサー等の
混合機を用いて乾式混合した後に、熱ロール、ニーダ、
バンバリーミキサー、スクリュー押出し機などで溶融混
合して成形材料としてペレット状にしてもよい。The mixing method of the thermoplastic polyimide resin and the filler described above is not particularly limited, and the raw materials may be individually supplied to the melt mixer, or a Henschel mixer, a ball mill, a tumbler mixer or the like may be previously prepared. After dry-mixing using a mixer, heat roll, kneader,
You may melt-mix with a Banbury mixer, a screw extruder, etc., and may make it into a pellet form as a molding material.
【００１７】そして摺動性シートを成形するには、上記
混合した材料を縦型または横型のＴダイを備えた単軸ま
たは２軸スクリュー押出機によりシート状に押出し、室
温好ましくは加熱した縦型または横型ロール引取り装置
により冷却成形する。摺動性シートの厚さは、０．１〜
３ｍｍであることが好ましい。なぜなら、０．１ｍｍ未
満の薄肉では摩耗に対して著しく寿命が短くなり、３ｍ
ｍを越える厚肉では放熱性が劣るので摩耗量が大きくな
るからである。In order to form a slidable sheet, the above mixed materials are extruded into a sheet form by a single-screw or twin-screw extruder equipped with a vertical or horizontal T-die, and the vertical mold is preferably heated at room temperature. Alternatively, it is cooled and formed by a horizontal roll take-up device. The thickness of the slidable sheet is 0.1
It is preferably 3 mm. Because, if the thickness is less than 0.1 mm, the life will be shortened significantly due to wear, and
This is because if the wall thickness exceeds m, the heat dissipation is poor and the amount of wear increases.
【００１８】次いで、上記の摺動性シートと金属製基材
を一体化するには、高周波加熱等の手法で予め所要温度
に加熱した金属製基材に摺動性シートを重ねて加圧し、
融着一体化するか、または接着剤により接着一体化すれ
ばよい。接着剤としては、特に限定されるものではない
が、フェノール樹脂系、エポキシ樹脂系もしくはイミド
樹脂系の一液性もしくは二液性接着剤またはイミド系も
しくは溶融フッ素樹脂系のフィルム状接着剤であってよ
い。Next, in order to integrate the above-mentioned slidable sheet and metallic base material, the slidable sheet is superposed on the metallic base material which has been heated to a required temperature in advance by a method such as high frequency heating, and pressure is applied.
It may be integrated by fusion or by adhesive. The adhesive is not particularly limited, but it is a phenol resin-based, epoxy resin-based or imide resin-based one-component or two-component adhesive or an imide-based or molten fluororesin-based film adhesive. You may
【００１９】[0019]
【作用】この発明における複合摺動材は、熱可塑性ポリ
イミド樹脂製の摺動性シートが金属製基材によって機械
的に補強されているので、耐荷重性が向上する。また、
摺動性シートの使用により、摺動材全体に占める樹脂量
が少なく、その分放熱性が向上し、このためポリイミド
樹脂の摩耗量も少なくなる。In the composite sliding material according to the present invention, the sliding sheet made of the thermoplastic polyimide resin is mechanically reinforced by the metal base material, so that the load resistance is improved. Also,
By using the slidable sheet, the amount of resin in the entire sliding material is small, and the heat dissipation is improved accordingly, and the amount of abrasion of the polyimide resin is also reduced.
【００２０】[0020]
【実施例】以下、この発明を実施例により更に詳細に説
明する。EXAMPLES The present invention will now be described in more detail by way of examples.
【００２１】まず、実施例および比較例に用いられた摺
動性シートの原材料を一括して示すと、次のとおりであ
る。なお、（ ）内に略号を示した。First, the raw materials of the slidable sheet used in Examples and Comparative Examples are collectively shown as follows. The abbreviations are shown in parentheses.
【００２２】（１）熱可塑性ポリイミド樹脂（ＰＩ） 三井東圧社製：Ｎｅｗ ＴＰＩ４５０ （２）四フッ化エチレン樹脂（ＰＴＦＥ） 喜多村社製：ＫＴＬ６１０ （３）球状グラファイト（Ｇｒａ−１） 鐘紡化学社製：ベルパールＣ−２０００ （４）グラファイト（Ｇｒａ−２） 日本黒鉛社製：グラファイトＡＣＰ （５）カーボンファイバー（ＣＦ） 呉羽化学工業社製：Ｍ２０７Ｓ （６）ガラスファイバー（ＧＦ） 旭ファイバーグラス社製：ＭＦ−ＫＡＣ 〔実施例１〜４〕以上の原材料を表１に示した割合で配
合してヘンシェルミキサーで乾式混合し、次いでスクリ
ュー押出機で溶融混練し、ペレット状にした。これを先
端にＴダイを取り付けた一軸スクリュー押出機で、シリ
ンダー温度４２０℃、Ｔダイ温度４００℃として押出成
形し、２５０℃に加熱した横型３本ロール巻取機により
巻取り、幅３００ｍｍ、厚さ０．５〜１．０ｍｍのシー
ト材を成形した。(1) Thermoplastic polyimide resin (PI): New TPI450 manufactured by Mitsui Toatsu Co., Ltd. (2) Tetrafluoroethylene resin (PTFE): KTL610 manufactured by Kitamura (3) Spherical graphite (Gra-1) Kanebo Chemical Co., Ltd. Made: Bell Pearl C-2000 (4) Graphite (Gra-2) Nippon Graphite Co., Ltd .: Graphite ACP (5) Carbon Fiber (CF) Kureha Chemical Industry Co., Ltd .: M207S (6) Glass Fiber (GF) Asahi Fiber Glass Co., Ltd. MF-KAC [Examples 1 to 4] The above raw materials were blended in the proportions shown in Table 1, dry-mixed with a Henschel mixer, and then melt-kneaded with a screw extruder to form pellets. This was extruded with a single screw extruder with a T-die attached at the tip at a cylinder temperature of 420 ° C. and a T-die temperature of 400 ° C., and wound by a horizontal three-roll winder heated to 250 ° C., width 300 mm, thickness A sheet material having a size of 0.5 to 1.0 mm was formed.
【００２３】このシート材片面に、一液性接着剤（セメ
ダイン社製：セメダイン１１０）を塗布し、鋼板（厚さ
４ｍｍ）の片面に重ねて熱板プレス機にて、圧力５〜８
ｋｇｆ／ｃｍ2 、雰囲気温度１６０℃にて１時間圧接保
持した後、外径４５ｍｍ、内径３５ｍｍ、長さ２０ｍｍ
のブッシュ（円筒）状の試験片を形成した。この試験片
を用いて下記の試験を行ない、その結果を表１に示し
た。A one-pack adhesive (Cemedine 110, manufactured by Cemedine Co., Ltd.) is applied to one side of the sheet material, and the sheet is laminated on one side of a steel plate (thickness: 4 mm) with a hot plate pressing machine at a pressure of 5-8.
After being pressed and held at kgf / cm 2 and an ambient temperature of 160 ° C. for 1 hour, the outer diameter is 45 mm, the inner diameter is 35 mm, and the length is 20 mm.
Bush (cylindrical) test pieces were formed. The following test was conducted using this test piece, and the results are shown in Table 1.
【００２４】摩耗試験：試験片のラジアル方向から相手
材ＳＵＪ２にて３００ｋｇｆ／ｃｍ2 または７００ｋｇ
ｆ／ｃｍ2 の荷重を与え、試験軸を回転させて滑り速度
毎分１ｍ、無潤滑連続運転で１００時間摺動の条件下で
摩耗体積を測定し、摩耗係数（×１０-10 ｃｍ3 ／ｋｇ
ｆ・ｍ）を求めた。また、測定時の試験片の摺動面温度
（℃）を測定し、これらの結果を表１に示した。Abrasion test: 300 kgf / cm 2 or 700 kg with mating material SUJ2 from the radial direction of the test piece
The wear volume was measured under the condition that a load of f / cm 2 was applied, the test shaft was rotated, the sliding speed was 1 m / min, and sliding was performed for 100 hours in unlubricated continuous operation, and the wear coefficient (× 10 -10 cm 3 / kg
f · m) was calculated. Further, the sliding surface temperature (° C.) of the test piece at the time of measurement was measured, and these results are shown in Table 1.
【００２５】[0025]
【表１】 [Table 1]
【００２６】〔比較例１〜４〕摺動材の原材料を表１に
示した割合で配合し、ヘンシェルミキサーで乾式混合
し、次いでスクリュー押出機で溶融混練し、ペレット状
にした。これをシリンダー温度３７０〜４００℃、射出
圧力１０００ｋｇ／ｃｍ2 、金型温度１５０〜２００℃
の条件で射出成形し、さらに切削加工を施して実施例と
全く同様の寸法のブッシュ試験片を得た。[Comparative Examples 1 to 4] Raw materials for the sliding material were blended in the proportions shown in Table 1, dry-mixed with a Henschel mixer, and then melt-kneaded with a screw extruder to form pellets. Cylinder temperature 370-400 ℃, injection pressure 1000 kg / cm 2 , mold temperature 150-200 ℃
Injection molding was performed under the conditions of No. 1 and further cutting processing was performed to obtain a bush test piece having exactly the same size as that of the example.
【００２７】得られた試験片に対し、前記摩耗試験を行
ない、この結果を表２中に併記した。The wear test was performed on the obtained test pieces, and the results are also shown in Table 2.
【００２８】[0028]
【表２】 [Table 2]
【００２９】表１および表２の結果からも明らかによう
に、熱可塑性ポリイミド樹脂を成形した単独の素材から
なる比較例１〜４は、荷重増大に伴って摺動面温度およ
び摩耗係数が著しく上昇したのに対し、所定の複合摺動
材とした実施例１〜４は３００または７００ｋｇｆ／ｃ
ｍ2 の荷重条件下でも比較的摺動面温度が低く、摩耗係
数も低い値で安定していた。As is clear from the results shown in Tables 1 and 2, Comparative Examples 1 to 4 made of a single material formed by molding a thermoplastic polyimide resin have a remarkable sliding surface temperature and wear coefficient as the load increases. In contrast to the rise, in Examples 1 to 4 in which the predetermined composite sliding material was used, 300 or 700 kgf / c
Even under the load condition of m 2, the sliding surface temperature was relatively low and the wear coefficient was low and stable.
【００３０】[0030]
【効果】この発明は以上説明したように、ポリイミド樹
脂製の摺動性シートを金属製基材によって補強すると共
に、放熱性を高めて摺動面の温度が上昇し難い複合摺動
材としたので、ポリイミド樹脂本来の耐熱性を有すると
共に、耐荷重性に優れ、荷重負荷時にも摩耗し難い摺動
材となる利点がある。As described above, the present invention provides a composite sliding material in which a sliding sheet made of a polyimide resin is reinforced by a metal base material and at the same time, heat dissipation is enhanced to make it difficult for the temperature of the sliding surface to rise. Therefore, there is an advantage that the sliding member has the heat resistance inherent to the polyimide resin, is excellent in load resistance, and is not easily worn even under a load.
Claims (1)
熱可塑性ポリイミド樹脂を主成分とする摺動性シートを
積層一体化してなる複合摺動材。 記 【化１】 1. A composite sliding material obtained by laminating and integrating a slidable sheet containing a thermoplastic polyimide resin represented by the following formula as a main component on the surface of a metal base material. Note:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22980892A JP3153011B2 (en) | 1992-08-28 | 1992-08-28 | Composite sliding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22980892A JP3153011B2 (en) | 1992-08-28 | 1992-08-28 | Composite sliding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0671810A true JPH0671810A (en) | 1994-03-15 |
| JP3153011B2 JP3153011B2 (en) | 2001-04-03 |
Family
ID=16897994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22980892A Expired - Fee Related JP3153011B2 (en) | 1992-08-28 | 1992-08-28 | Composite sliding material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3153011B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1163238A (en) * | 1997-08-15 | 1999-03-05 | Shin Etsu Polymer Co Ltd | Polymeric compound sliding member and double-belted press device using the same |
| KR100785504B1 (en) * | 2005-04-29 | 2007-12-13 | 미바 그레이트라게르 게엠베하 | Bearing element |
| JP2017088741A (en) * | 2015-11-11 | 2017-05-25 | 大同メタル工業株式会社 | Sliding member |
| JP2017145842A (en) * | 2016-02-15 | 2017-08-24 | 大同メタル工業株式会社 | Slide member |
-
1992
- 1992-08-28 JP JP22980892A patent/JP3153011B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1163238A (en) * | 1997-08-15 | 1999-03-05 | Shin Etsu Polymer Co Ltd | Polymeric compound sliding member and double-belted press device using the same |
| KR100785504B1 (en) * | 2005-04-29 | 2007-12-13 | 미바 그레이트라게르 게엠베하 | Bearing element |
| US8033733B2 (en) | 2005-04-29 | 2011-10-11 | Miba Gleitlager Gmbh | Bearing element |
| JP2017088741A (en) * | 2015-11-11 | 2017-05-25 | 大同メタル工業株式会社 | Sliding member |
| JP2017145842A (en) * | 2016-02-15 | 2017-08-24 | 大同メタル工業株式会社 | Slide member |
| US10995296B2 (en) | 2016-02-15 | 2021-05-04 | Daido Metal Company Ltd. | Sliding member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3153011B2 (en) | 2001-04-03 |
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