JP3126352B2 - Plain bearing - Google Patents
Plain bearingInfo
- Publication number
- JP3126352B2 JP3126352B2 JP16648699A JP16648699A JP3126352B2 JP 3126352 B2 JP3126352 B2 JP 3126352B2 JP 16648699 A JP16648699 A JP 16648699A JP 16648699 A JP16648699 A JP 16648699A JP 3126352 B2 JP3126352 B2 JP 3126352B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- weight
- talc
- composition
- wear
- 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.)
- Expired - Fee Related
Links
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- Lubricants (AREA)
Description
【0001】[0001]
【産業上の利用分野】この発明はポリフェニレンサルフ
ァイド樹脂を主成分とする潤滑性組成物で形成された滑
り軸受に関するものである。BACKGROUND OF THE INVENTION This invention has been formed by the lubricating composition mainly composed of Po Li polyphenylene sulfide resin synovial
It relates to bearings .
【0002】[0002]
【従来の技術】近年、合成樹脂滑り軸受の用途分野が拡
大するにつれて、軸受の使用条件、特に高温雰囲気下に
おいて、良好な摩擦摩耗特性を発揮するような耐熱性の
ある合成樹脂製軸受が強く要望されるようになってき
た。2. Description of the Related Art In recent years, as the field of application of synthetic resin plain bearings has expanded, heat-resistant synthetic resin bearings that exhibit good friction and wear characteristics under bearing operating conditions, especially in a high-temperature atmosphere, have become stronger. It has come to be desired.
【0003】また、軸受の相手材としても安価なアルミ
ニウム合金A5056等が使用されており、使用中に相
手材を傷つけないような軸受の特性が要求されている。[0003] Also, inexpensive aluminum alloy A5056 and the like are used as a mating material of the bearing, and the characteristics of the bearing are required so as not to damage the mating material during use.
【0004】従来、耐熱性が良く機械的強度の優れた熱
可塑性合成樹脂としてポリフェニレンサルファイド(P
PSと略称する)樹脂が用いられていることはよく知ら
れている。[0004] Conventionally, polyphenylene sulfide (P) has been used as a thermoplastic synthetic resin having good heat resistance and excellent mechanical strength.
It is well known that a resin is used.
【0005】しかし、このPPS樹脂は自己潤滑性が乏
しいため、潤滑性を必要とする部分の材料として使用す
るに際しては、潤滑剤などを添加して別途潤滑性を付与
しなければならない。However, since the PPS resin has poor self-lubricating properties, when used as a material for a portion requiring lubricating properties, it is necessary to separately impart lubricity by adding a lubricant or the like.
【0006】そこで、このようなPPS樹脂に、たとえ
ば黒鉛、四フッ化エチレン樹脂、潤滑油、金属酸化物、
芳香族ポリアミド樹脂等を添加した複合材料が開発され
ている。Therefore, such PPS resins include, for example, graphite, ethylene tetrafluoride resin, lubricating oil, metal oxide,
Composite materials to which an aromatic polyamide resin or the like has been added have been developed.
【0007】しかし、このような複合材料は高温、高負
荷条件のもとで良好な摩擦摩耗特性を発揮させるという
点で決して充分であるとは言えない。また、PPS樹脂
に四フッ化エチレン樹脂およびPPS樹脂より耐熱性の
ある合成樹脂粉末を添加した複合材料も開発されている
が、相手材が硬質の材料である場合、良好な摩擦摩耗特
性を発揮するものの、相手材がアルミニウム合金の場合
は相手材を傷つけてしまう。However, such composite materials are far from satisfactory in that they exhibit good friction and wear properties under high temperature and high load conditions. In addition, a composite material in which PPS resin is added with a synthetic resin powder having higher heat resistance than ethylene tetrafluoride resin and PPS resin has been developed. However, when the mating material is a hard material, it exhibits good friction and wear characteristics. However, when the partner material is an aluminum alloy, the partner material is damaged.
【0008】一方、炭素繊維を配合した複合材料は初期
においては良好な摩擦摩耗特性を示すが、相手材が硬質
でも相手材を損傷させ、その損傷にともない摩擦摩耗特
性が急激に悪化する。On the other hand, a composite material containing carbon fiber shows good friction and wear characteristics at an early stage, but damages the mating material even if the mating material is hard, and the friction and wear characteristics deteriorate rapidly with the damage.
【0009】[0009]
【発明が解決しようとする課題】このように、従来の技
術においては良好な潤滑特性を備えた耐熱性材料で形成
された滑り軸受がなく世間の要望に対処し得ないという
問題点があり、これを解決することが課題となってい
た。As described above, in the prior art, it is formed of a heat-resistant material having good lubricating properties.
There is a problem that it is not possible to cope with the demands of the public because there is no used plain bearing, and it has been a problem to solve this.
【0010】[0010]
【課題を解決するための手段】上記の課題を解決するた
めに、この発明は、ポリフェニレンサルファイド(PP
S)樹脂を主成分とし、四フッ化エチレン樹脂5〜40
重量%と鱗片状で粒径0.1〜100μmのタルク5〜
30重量%とを必須成分として添加した樹脂組成物の成
形体からなる軟質材の回転軸支持用滑り軸受とする手段
を採用したものである。以下その詳細を述べる。In order to solve the above-mentioned problems, the present invention relates to a polyphenylene sulfide (PP)
S) Resin as a main component, 5 to 40 ethylene tetrafluoride resin
5% by weight of talc 5 with a scale of 0.1 to 100 μm
The present invention employs a means of forming a soft material formed of a resin composition containing 30% by weight of a resin composition as a sliding bearing for supporting a rotating shaft . The details are described below.
【0011】まず、この発明におけるPPS樹脂は、一
般式First, the PPS resin of the present invention has the general formula
【0012】[0012]
【化1】 Embedded image
【0013】で示される合成樹脂である。ここで、式中
−Ph−はA synthetic resin represented by the formula: Where -Ph-
【0014】[0014]
【化2】 Embedded image
【0015】であり、QはF、Cl、Brのハロゲンもしく
はCH3 であり、mは1〜4の整数を示す。これらのう
ち、特に典型的なものはWherein Q is a halogen of F, Cl or Br or CH 3 , and m represents an integer of 1 to 4. Of these, the most typical ones are
【0016】[0016]
【化3】 Embedded image
【0017】で示されるものであり、米国フィリップス
・ペトローリアム社から「ライトン」の商標で市販さ
れ、その製造方法は米国特許第 3,354,129号(対応特許
特公昭45−3368号)に開示されている。それによると、
ライトンはN−メチルピロリドン溶媒中、160〜25
0℃、加圧条件下にp−ジクロルベンゼンと二硫化ソー
ダとを反応させることによって製造され、樹脂中に交差
結合が全くないものから部分的交差結合を有するものに
至るまで各種重合度のものを後熱処理工程にかけて自由
に製造することができるので、目的の溶媒ブレンドに適
正な溶融粘度特性を有するものを任意に選択使用するこ
とが可能である。また、架橋構造をとらず直鎖状のもの
も使用できる。Which is commercially available from Philips Petroleum Corp. under the trademark "Ryton" and its production method is disclosed in US Pat. No. 3,354,129 (corresponding to Japanese Patent Publication No. 45-3368). according to it,
Ryton is 160 to 25 in N-methylpyrrolidone solvent.
It is produced by reacting p-dichlorobenzene with sodium disulfide at 0 ° C. under pressurized conditions, and has various degrees of polymerization from a resin having no cross-linking to a resin having partial cross-linking. Since the product can be freely produced through a post-heat treatment step, it is possible to arbitrarily select and use a product having an appropriate melt viscosity characteristic for a target solvent blend. In addition, a linear one without a crosslinked structure can be used.
【0018】また、この発明におけるフッ素樹脂は四フ
ッ化エチレン樹脂、エチレン−テトラフルオロエチレン
共重合体、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
−ヘキサフルオロプロピレン共重合体、ポリトリクロロ
フルオロエチレン等があげられるが、特に四フッ化エチ
レン樹脂が好ましい。In the present invention, the fluororesin may be ethylene tetrafluoride resin, ethylene-tetrafluoroethylene copolymer, tetrafluoroethylene-perfluoroalkylvinyl ether copolymer, tetrafluoroethylene-hexafluoropropylene copolymer, Trichlorofluoroethylene and the like can be mentioned, and particularly preferred is tetrafluoroethylene resin.
【0019】そして、四フッ化エチレン樹脂は、四フッ
化エチレンの重合体であり、成形用の粉末であっても、
また、いわゆる固体潤滑剤用の微粉末であってもよく、
たとえば三井デュポン・フロロケミカル社製:テフロン
7J、TLP-10、旭硝子社製:フルオンG163、ダイキン工業
社製:ポリフロンM15 、ルブロンL5などを例示すること
ができる。The ethylene tetrafluoride resin is a polymer of ethylene tetrafluoride, and even if it is a powder for molding,
Further, it may be a fine powder for a so-called solid lubricant,
For example, Mitsui Dupont Fluorochemicals: Teflon
7J, TLP-10, manufactured by Asahi Glass Co., Ltd .: Fluon G163, manufactured by Daikin Industries, Ltd .: Polyflon M15, Lubron L5, and the like.
【0020】また、この発明におけるタルクは、マグネ
シウムの含水ケイ酸塩であって、鱗片状のものが好まし
い。また、これらの粒径は0.1〜100μm、好まし
くは0.5〜60μmのものである。Further, talc in the present invention is a hydrous silicate of magnesium, preferably from scales flake. These particles have a particle size of 0.1 to 100 μm, preferably 0.5 to 60 μm.
【0021】なお、この発明において、フッ素樹脂の量
を5〜40重量%に限定する理由は5重量%より少ない
と潤滑特性が悪く、40重量%をこえると著しく成形性
がそこなわれるからである。また、タルクの量を5〜3
0重量%に限定する理由は、この範囲外では潤滑特性が
悪く、30重量%を越えると極端にもろくなるからであ
る。In the present invention, the reason for limiting the amount of the fluororesin to 5 to 40% by weight is that if the amount is less than 5% by weight, the lubricating properties are poor, and if it exceeds 40% by weight, the moldability is remarkably deteriorated. is there. In addition, the amount of talc is 5 to 3
The reason for limiting the amount to 0% by weight is that the lubricating properties are poor outside this range and extremely weak when the amount exceeds 30% by weight.
【0022】ここで、配合割合の決まった各添加物を混
合する方法は特に限定するものではなく、通常広く用い
られている方法、たとえば主成分となる樹脂、その他の
諸原料をそれぞれ個別に、または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によって適
宜乾式混合した後、溶融混合性のよい射出成形機もしく
は溶融押出成形機に供給するか、または、予め熱ロー
ル、ニーダ、バンバリーミキサー、溶融押出機などで溶
融混合するなどの方法を利用すればよい。Here, the method of mixing the additives having a fixed mixing ratio is not particularly limited, and a method generally used widely, for example, a resin as a main component and other various raw materials are individually Or Henschel mixer,
After appropriate dry mixing with a mixer such as a ball mill or tumbler mixer, supply it to an injection molding machine or melt extrusion molding machine with good melt mixing properties, or melt it in advance with a hot roll, kneader, Banbury mixer, melt extruder, etc. A method such as mixing may be used.
【0023】さらに、この発明の組成物を成形するにあ
たっても、特にその方法を限定するものではなく、圧縮
成形、押出成形、射出成形等の通常の方法、または組成
物を溶融混合した後、これをジェットミル、冷凍粉砕機
等によって粉砕し、所望の粒径に分級するか、または分
級しないままで、得られた粉末を用いた流動浸漬塗装、
静電粉体塗装などを行なうことも可能である。また、得
られた粉末を溶剤に分散させて、スプレー塗装または浸
漬塗装を行なうことも可能である。Further, the method of molding the composition of the present invention is not particularly limited, but may be a conventional method such as compression molding, extrusion molding, injection molding, or the like. Is crushed by a jet mill, a freeze crusher, or the like, and is classified into a desired particle size, or is not classified, and is subjected to fluid immersion coating using the obtained powder.
It is also possible to perform electrostatic powder coating or the like. Further, it is also possible to disperse the obtained powder in a solvent and perform spray coating or dip coating.
【0024】なお、この発明のPPS樹脂を主成分とす
る潤滑性組成物に対して、潤滑特性を悪化させない範囲
内において各種添加剤を配合することもできる。またそ
の他に、潤滑性をさらに改良するために、各種耐摩耗性
改良剤を配合してもよい。Various additives may be added to the lubricating composition containing the PPS resin of the present invention as a main component within a range that does not deteriorate the lubricating properties. In addition, in order to further improve lubricity, various wear resistance improvers may be blended.
【0025】そのような耐摩耗性改良剤の好ましい例と
しては、芳香族ポリアミド繊維、グラファイト、芳香族
ポリエステル樹脂等を例示できるが、これらに限定され
るものではない。Preferred examples of such abrasion resistance improver include, but are not limited to, aromatic polyamide fibers, graphite, aromatic polyester resins and the like.
【0026】[0026]
【作用】以上述べたこの発明の組成物からなる滑り軸受
は、必須成分としてフッ素樹脂、タルクを併用すること
によって、高温雰囲気中でも良好な転移膜を相手材上に
形成し、相手材がアルミニウム合金でも傷つけることな
く、良好な潤滑特性を示す。The sliding bearing made of the composition of the present invention described above forms a good transition film on a mating material even in a high-temperature atmosphere by using a fluororesin and talc as essential components. Even if the material is an aluminum alloy, it shows good lubrication properties without being damaged.
【0027】[0027]
【実施例】まず、実施例および比較例に用いた諸原材料
を一括して示すとつぎのとおりである。なお各成分の配
合割合は、すべて重量%である。EXAMPLES First, the raw materials used in the examples and comparative examples are collectively shown as follows. The mixing ratio of each component is all% by weight.
【0028】 PPS 樹脂(東ソーサスティール社製:
PPS #160 ) PPS 樹脂(クレハ化学社製:KPS-W205) タルクA(松村産業社製:クラウン・タルクPP、鱗
片状) タルクB(富士タルク工業社製:タルクRF-B、繊維
状) 四フッ化エチレン樹脂A(三井デュポン・フロロケ
ミカル社製:テフロン7J) 四フッ化エチレン樹脂B(喜多村社製:KT300M 、焼
成粉) 芳香族ポリエステル樹脂(住友化学工業社製:エコ
ノールE101M ) カーボンブラック(ライオン社製:ケッチェンEC-
X) グラファイト(日本黒鉛社製:ACP)。PPS resin (manufactured by Tosoh Steel Co., Ltd .:
PPS # 160) PPS resin (Kureha Chemical Co., Ltd .: KPS-W205) Talc A (Matsumura Sangyo Co., Ltd .: Crown Talc PP, scale) Talc B (Fuji Talc Kogyo Co., Ltd .: Talc RF-B, fibrous) Fluorinated ethylene resin A (manufactured by Mitsui DuPont Fluorochemicals: Teflon 7J) Tetrafluoroethylene resin B (manufactured by Kitamura: KT300M, calcined powder) Aromatic polyester resin (manufactured by Sumitomo Chemical Co., Ltd .: Econol E101M) Carbon black ( Lion Corporation: Ketchen EC-
X) Graphite (Nippon Graphite, ACP).
【0029】実施例1〜3: 第1表に示す割合で諸原材料を配合した。そして組成物
の成形にあたっては、まず原材料をヘンシェルミキサー
で充分混合し、二軸溶融押出機に供給し、シリンダー温
度300℃、回転数毎分100回転の溶融混合条件で押
出して造粒し、得られたペレットを樹脂温度310℃、
射出圧力800kg/cm2、金型温度140℃の射出
成形条件下で外径35mm、内径25mm、幅6mmの
リング状試験片を成形し、この試験片を用いて以下に示
す高温ラジアル摩擦摩耗試験を行なった。Examples 1-3 : Various raw materials were blended at the ratios shown in Table 1. In molding the composition, first, the raw materials are thoroughly mixed with a Henschel mixer, supplied to a twin-screw extruder, and extruded under a melt mixing condition of a cylinder temperature of 300 ° C. and a rotation speed of 100 revolutions per minute, and granulated. Resin temperature 310 ° C., the pellets
A ring-shaped test piece having an outer diameter of 35 mm, an inner diameter of 25 mm, and a width of 6 mm was molded under injection molding conditions of an injection pressure of 800 kg / cm 2 and a mold temperature of 140 ° C., and using this test piece, a high-temperature radial friction and wear test described below was performed. Was performed.
【0030】<高温ラジアル摩擦摩耗試験>密閉された
200 ℃の雰囲気下で駆動される回転軸に、同軸外周にア
ルミニウム合金(A5056) 製筒形の相手材を嵌め、この相
手材の外周に回転自在に嵌めたリング状試験片を相手材
周面に対して2.7 kgf/cm2 の圧力で押圧し、前記
回転軸には、トルクメータを取り付け、周速が3m/分
であるよう168時間連続回転した後、試験片の摩耗量
(mg)、回転軸のトルク(kgf・cm)を測定し、
かつ相手材の損傷度を観察した。損傷度については、損
傷しない(○印)、やや損傷する(△印)または損傷す
る(×印)の三段階評価で表わした。得られた結果は第
2表にまとめた。<High temperature radial friction and wear test>
An aluminum alloy (A5056) cylindrical mating member is fitted on the outer periphery of a coaxial shaft on a rotating shaft driven in an atmosphere of 200 ° C. Against a pressure of 2.7 kgf / cm 2 , a torque meter is attached to the rotating shaft, and after continuous rotation for 168 hours so that the peripheral speed is 3 m / min, the wear amount (mg) of the test piece, Measure the torque (kgf · cm) of the rotating shaft,
And the damage degree of the partner material was observed. The degree of damage was represented by a three-point scale of not damaging (marked with ○), slightly damaged (marked with △), or damaged (marked with ×). The results obtained are summarized in Table 2.
【0031】[0031]
【表1】 [Table 1]
【0032】[0032]
【表2】 [Table 2]
【0033】比較例1〜6: 第1表に示した割合で原材料を配合したこと以外は実施
例1と全く同様にして試験片を作り、諸特性を求め、得
られた結果を第2表に併記した。Comparative Examples 1 to 6 : Specimens were prepared in exactly the same manner as in Example 1 except that the raw materials were blended in the proportions shown in Table 1, and various characteristics were obtained. It was also described in.
【0034】第2表に示す結果から、比較例1〜5にお
いては、いずれも摩耗量、回転トルクが大きく、また、
比較例1、2および5では相手材の損傷が大きかった。
一方、実施例1〜4では、摩耗量、回転トルクとも小さ
く、しかも相手材のアルミニウム合金を損傷させないこ
とが明らかになった。From the results shown in Table 2, in Comparative Examples 1 to 5, the amount of wear and the rotational torque were all large.
In Comparative Examples 1, 2, and 5, damage to the mating member was large.
On the other hand, in Examples 1 to 4, it was clarified that both the wear amount and the rotation torque were small, and that the aluminum alloy as the mating material was not damaged.
【0035】[0035]
【発明の効果】以上述べたように、この発明の樹脂組成
物の成形体からなる滑り軸受は、アルミニウム合金等の
軟質材相手でも優れた耐摩耗性を有しており、しかも相
手材を損傷しないので、相手材を選ばない滑り軸受とし
て使用できる。As described above, the resin composition of the present invention
Sliding bearing comprising a molded body of the object has an excellent wear resistance even in soft material partner such as an aluminum alloy, and since no damage to the mating member, Te <br/> a sliding bearing agnostic counterpart material Can be used.
【0036】また、PPS樹脂の耐熱性を利用している
ので、高温条件下、軟質材相手で耐摩耗性を要求される
用途には格好のものであるといえる。Further, since the heat resistance of the PPS resin is utilized, it can be said that the PPS resin is suitable for applications requiring wear resistance against a soft material under high temperature conditions.
【0037】また、この発明の樹脂組成物からなる滑り
軸受は、射出成形により容易に成形できるものであるこ
とから、この発明の意義はきわめて大きいということが
できる。Also, the sliding made of the resin composition of the present invention
Since the bearing can be easily formed by injection molding, it can be said that the significance of the present invention is extremely large.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI C10N 30:00 30:06 40:02 50:08 (58)調査した分野(Int.Cl.7,DB名) C10M 107/38 C10M 107/46 C10M 125/26 C10N 10:04 C10N 30:06 C10N 40:02 C10N 50:08 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 identification code FI C10N 30:00 30:06 40:02 50:08 (58) Investigated field (Int.Cl. 7 , DB name) C10M 107 / 38 C10M 107/46 C10M 125/26 C10N 10:04 C10N 30:06 C10N 40:02 C10N 50:08
Claims (2)
とし、四フッ化エチレン樹脂5〜40重量%と鱗片状で
粒径0.1〜100μmのタルク5〜30重量%とを必
須成分として添加した樹脂組成物の成形体からなる軟質
材の回転軸支持用滑り軸受。1. A scaly composition comprising a polyphenylene sulfide resin as a main component and 5 to 40% by weight of an ethylene tetrafluoride resin.
A soft resin molded article of a resin composition to which 5 to 30% by weight of talc having a particle size of 0.1 to 100 μm is added as an essential component
Bearings for supporting the rotating shaft of materials .
1に記載の軟質材の回転軸支持用滑り軸受。 2. The sliding bearing for supporting a rotating shaft of a soft material according to claim 1, wherein the soft material is an aluminum alloy.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16648699A JP3126352B2 (en) | 1999-06-14 | 1999-06-14 | Plain bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16648699A JP3126352B2 (en) | 1999-06-14 | 1999-06-14 | Plain bearing |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30452590A Division JP3009210B2 (en) | 1990-11-09 | 1990-11-09 | Lubricating composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000001688A JP2000001688A (en) | 2000-01-07 |
JP3126352B2 true JP3126352B2 (en) | 2001-01-22 |
Family
ID=15832292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16648699A Expired - Fee Related JP3126352B2 (en) | 1999-06-14 | 1999-06-14 | Plain bearing |
Country Status (1)
Country | Link |
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JP (1) | JP3126352B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4694243B2 (en) * | 2005-04-12 | 2011-06-08 | 旭化成ケミカルズ株式会社 | Resin composition |
-
1999
- 1999-06-14 JP JP16648699A patent/JP3126352B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2000001688A (en) | 2000-01-07 |
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