JP2012154364A - Pressure resistant sliding member and brake pad - Google Patents
Pressure resistant sliding member and brake pad Download PDFInfo
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- JP2012154364A JP2012154364A JP2011011825A JP2011011825A JP2012154364A JP 2012154364 A JP2012154364 A JP 2012154364A JP 2011011825 A JP2011011825 A JP 2011011825A JP 2011011825 A JP2011011825 A JP 2011011825A JP 2012154364 A JP2012154364 A JP 2012154364A
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Abstract
Description
本発明は、高圧用の高強度摺動部材及びブレーキパッドに関する。 The present invention relates to a high-strength sliding member for high pressure and a brake pad.
従来、無潤滑下における摺動部材には固体潤滑材を含有した熱硬化性樹脂（例えば、特許文献１参照。）やカーボン焼結体（例えば、特許文献２参照。）等が用いられている。これらは低摩擦、耐摩耗である特徴を活かし、軸受、シールリング、ブレード等の摺動部材に使用されている。 Conventionally, a thermosetting resin containing a solid lubricant (for example, refer to Patent Document 1), a carbon sintered body (for example, refer to Patent Document 2), or the like is used for the sliding member without lubrication. . These have been used for sliding members such as bearings, seal rings, and blades, taking advantage of their low friction and wear resistance.
風車のヨー制御用ブレーキパッドに使用される摺動部材は、構造上高圧の負荷がかかる部材である。従来の樹脂材料及びカーボン材料では、このような高圧の負荷がかかる部材に使用すると、強度が耐えられず、割れてしまうという問題がある。 The sliding member used for the windmill yaw control brake pad is a member to which a high-pressure load is applied structurally. Conventional resin materials and carbon materials have a problem that when used for a member to which such a high-pressure load is applied, the strength cannot be endured and the material is cracked.
本発明は、高負荷がかかる摺動部品に用いることが可能な強度を有し、なおかつ優れた耐摩耗性を有するとともに、低コストである摺動材料を提供することを目的とする。 An object of the present invention is to provide a sliding material that has strength that can be used for a sliding component subjected to a high load, has excellent wear resistance, and is low in cost.
本発明は以下の通りである。
（１）フッ素樹脂繊維集合体とマトリックス樹脂を含む摺動部（Ａ）と繊維集合体とマトリックス樹脂を含む基盤部（Ｂ）から構成される耐圧摺動部材（図１）。
（２）フッ素樹脂繊維集合体と繊維集合体とマトリックス樹脂を含む摺動部（Ａ）と繊維集合体とマトリックス樹脂を含む基盤部（Ｂ）から構成され、前記摺動部（Ａ）のフッ素樹脂繊維集合体と繊維集合体が交互に積層して構成される耐圧摺動部材（図２）。
（３）フッ素樹脂繊維集合体及び繊維集合体が織物、編物、交織物、フエルトから選択される形態である（１）又は（２）に記載の耐圧摺動部材。
（４）繊維集合体が綿、毛、絹、麻、レーヨン、ナイロン、アクリル、ビニロン、ポリエステル、ポリオレフィン、ポリウレタン、アラミド、ボロン、ザイロン、ガラス、炭素から少なくとも１種から選ばれる（１）〜（３）のいずれかに記載の耐圧摺動部材。
（５）摺動部（Ａ）のフッ素樹脂繊維集合体及び繊維集合体の積層面と摺動面のなす角が２〜９０°である（２）〜（４）のいずれかに記載の耐圧摺動部材（図３）。
（６）マトリックス樹脂がフェノール樹脂又はエポキシ樹脂である（１）〜（５）のいずれかに記載の耐圧摺動部材。
（７）（１）〜（６）のいずれかに記載の耐圧摺動部材からなるブレーキパッド。
The present invention is as follows.
(1) A pressure-resistant sliding member composed of a sliding part (A) containing a fluororesin fiber assembly and a matrix resin and a base part (B) containing a fiber assembly and a matrix resin (FIG. 1).
(2) A fluorine resin fiber assembly, a sliding part (A) containing a fiber assembly and a matrix resin, and a base part (B) containing a fiber assembly and a matrix resin, the fluorine of the sliding part (A) A pressure-resistant sliding member configured by alternately laminating resin fiber assemblies and fiber assemblies (FIG. 2).
(3) The pressure-resistant sliding member according to (1) or (2), wherein the fluororesin fiber assembly and the fiber assembly are selected from a woven fabric, a knitted fabric, a woven fabric, and a felt.
(4) The fiber assembly is selected from at least one of cotton, hair, silk, hemp, rayon, nylon, acrylic, vinylon, polyester, polyolefin, polyurethane, aramid, boron, zylon, glass, and carbon (1) to ( The pressure-resistant sliding member according to any one of 3).
(5) The pressure resistance according to any one of (2) to (4), wherein an angle formed between the sliding surface and the laminated surface of the fluororesin fiber assembly and the fiber assembly of the sliding portion (A) is 2 to 90 °. A sliding member (FIG. 3).
(6) The pressure-resistant sliding member according to any one of (1) to (5), wherein the matrix resin is a phenol resin or an epoxy resin.
(7) A brake pad comprising the pressure-resistant sliding member according to any one of (1) to (6).
本発明によれば、高負荷下において割れ、破損がなく、耐摩耗性に優れた摺動材料を提供できる。
また、摺動部と基盤部の二層構造とすることで、耐摩耗特性と低コストの両立が可能な摺動材料を提供できる。
According to the present invention, it is possible to provide a sliding material which is not cracked or damaged under a high load and has excellent wear resistance.
In addition, by using a two-layer structure of the sliding portion and the base portion, it is possible to provide a sliding material that can achieve both wear resistance and low cost.
以下、本発明をさらに詳細に説明する。 Hereinafter, the present invention will be described in more detail.
本発明は、高負荷がかかる摺動部品において、相手面を傷つけることのない摩擦係数の低い摺動特性を持ち、耐久性に優れた摺動部材について鋭意検討した結果、繊維集合体を数種類併用し、これらを積層して用いることで、前記課題を解決した。これにより、従来の樹脂材料、カーボン焼結体と同等以上の耐摩耗特性を有し、高負荷がかかる摺動部品に使用可能な摺動材料を提供できる。 The present invention is a result of diligent research on sliding members having a low friction coefficient and excellent durability that do not damage the mating surface in sliding parts subjected to high loads. As a result, several types of fiber assemblies are used in combination. And the said subject was solved by laminating | stacking and using these. Thereby, it is possible to provide a sliding material that has wear resistance characteristics equivalent to or higher than those of conventional resin materials and carbon sintered bodies and that can be used for sliding parts subjected to high loads.
本発明の摺動部（Ａ）は、フッ素樹脂繊維集合体とマトリックス樹脂を含む。フッ素樹脂繊維集合体には、フッ素樹脂繊維の樹脂等との濡れ性を向上させることやコストダウンを目的に、フッ素樹脂繊維の低摩擦特性を損なわない範囲で、他の素材を交織、混撚あるいは混綿してもよい。また、摺動部（Ａ）は、フッ素樹脂繊維集合体と他の素材の繊維集合体を１枚又は複数枚ずつ交互に積層させて用いてもよい。 The sliding part (A) of the present invention includes a fluororesin fiber assembly and a matrix resin. In order to improve the wettability of the fluororesin fibers with the resin, etc., and to reduce costs, the fluororesin fiber aggregate may be interwoven, mixed twisted, or mixed with other materials as long as the low friction characteristics of the fluororesin fibers are not impaired. You may mix cotton. Further, the sliding portion (A) may be used by alternately laminating one or more fluororesin fiber aggregates and fiber aggregates of other materials.
フッ素樹脂繊維集合体及び繊維集合体が、織物、編物、交織物、フエルトから選択される形態であることが好ましい。これらの形態の繊維集合体を用いることで、高負荷がかかる摺動部品において割れることなく形状を維持できる部品を提供できる。 The fluororesin fiber assembly and the fiber assembly are preferably in a form selected from woven fabrics, knitted fabrics, cross-woven fabrics, and felts. By using the fiber assembly of these forms, it is possible to provide a component that can maintain its shape without being broken in a sliding component that is subjected to a high load.
本発明の耐圧摺動部材に用いるフッ素樹脂は、ポリテトラフルオロエチレン（ＰＴＦＥ）、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（ＦＥＰ）、テトラフルオトエチレン−ｐ−フルオロアルキルビニルエーテル共重合体（ＰＦＡ）、ポリクロロトリフルオロエチレン（ＰＣＴＦＥ）、エチレン−テトラフルオロエチレン共重合体（ＥＴＦＥ）等を単独又は２種類以上ブレンドしたものを使用することができる。フッ素樹脂繊維の中でも、耐摩耗性が優れるＰＴＦＥ繊維を用いることが好ましい。 The fluororesin used for the pressure-resistant sliding member of the present invention is polytetrafluoroethylene (PTFE), tetrafluoroethylene-hexafluoropropylene copolymer (FEP), tetrafluoroethylene-p-fluoroalkyl vinyl ether copolymer (PFA). ), Polychlorotrifluoroethylene (PCTFE), ethylene-tetrafluoroethylene copolymer (ETFE) or the like, or a blend of two or more of them can be used. Among the fluororesin fibers, it is preferable to use PTFE fibers having excellent wear resistance.
本発明の繊維集合体としては、綿、毛、絹、麻、レーヨン、ナイロン、アクリル、ビニロン、ポリエステル、ポリオレフィン、ポリウレタン、アラミド、ボロン、ザイロン、ガラス、炭素から少なくとも１種から選ばれる繊維集合体が挙げられる。低コストの観点からは、天然繊維では綿、合成繊維ではポリエステル、無機繊維ではガラスを用いることが好ましく、高強度の観点から天然繊維では麻、合成繊維ではアラミド繊維、無機繊維では炭素繊維を用いることが好ましい。 As the fiber assembly of the present invention, a fiber assembly selected from at least one selected from cotton, wool, silk, hemp, rayon, nylon, acrylic, vinylon, polyester, polyolefin, polyurethane, aramid, boron, zylon, glass, and carbon Is mentioned. From the viewpoint of low cost, it is preferable to use cotton for natural fibers, polyester for synthetic fibers, and glass for inorganic fibers, and hemp for natural fibers, aramid fibers for synthetic fibers, and carbon fibers for inorganic fibers. It is preferable.
本発明では、摺動部材の摺動部（Ａ）が摩擦面に接するよう構成される。通常、摺動部（Ａ）を摩擦面にそのまま接触させて使用する。摺動部（Ａ）は長時間の摩擦により摩耗するが、最表面にフッ素樹脂繊維が常に接触していることが好ましい。そこで、摺動部（Ａ）のフッ素樹脂繊維集合体と繊維集合体が交互に積層して構成する時は、フッ素樹脂繊維の低摩擦特性を最大限に引き出すために、摩擦面に対して２〜９０°の角度傾斜をつけることが好ましい。摩擦面に対して傾斜をつけることにより、常にフッ素樹脂繊維が摩擦面に接触し、フッ素樹脂の特性を活かすことができる。 In this invention, it is comprised so that the sliding part (A) of a sliding member may contact a friction surface. Usually, the sliding part (A) is used in contact with the friction surface as it is. Although the sliding portion (A) is worn by long-time friction, it is preferable that the fluororesin fiber is always in contact with the outermost surface. Therefore, when the fluororesin fiber assembly and the fiber assembly of the sliding portion (A) are alternately laminated, in order to maximize the low friction characteristic of the fluororesin fiber, it is 2 It is preferable to apply an angle inclination of ˜90 °. By inclining the friction surface, the fluororesin fibers always come into contact with the friction surface, and the characteristics of the fluororesin can be utilized.
本発明の耐圧摺動部材は、摺動部（Ａ）と基盤部（Ｂ）の２層構造とされる。摩擦相手材と接する摺動部（Ａ）は、優れた耐摩耗性及び高負荷に耐えうる強度が要求されるのに対し、基盤部（Ｂ）は、高負荷に耐えうる強度が要求されるが、摺動面に接することがないため耐摩耗性は要求されない。このため、耐圧摺動部材を使用する期間内に摺動面と接触する可能性のない部分は、基盤部（Ｂ）として、高負荷に耐えうる強度を備える素材により構成すればよい。耐圧摺動部材を、摺動部（Ａ）と基盤部（Ｂ）の２層構造とし、耐摩耗性を付与するフッ素樹脂繊維を摺動部（Ａ）にのみ使用することにより、高価であるフッ素樹脂繊維の使用量を少なくすることができる。これにより低コストと摺動特性を両立する材料を提供することが可能となる。
また、さらに摺動部（Ａ）をフッ素樹脂繊維集合体と他の素材の繊維集合体を１枚又は複数枚ずつ交互に積層させることによって、耐摩耗性は若干低下するものの、その低下の程度は軽微であり、実用に耐えうる十分な耐摩耗性が得られることに加えて、さらに低コスト化が可能である。
The pressure-resistant sliding member of the present invention has a two-layer structure of a sliding part (A) and a base part (B). The sliding part (A) in contact with the friction partner material is required to have excellent wear resistance and strength capable of withstanding a high load, whereas the base part (B) is required to be capable of withstanding a high load. However, since it does not contact the sliding surface, wear resistance is not required. For this reason, what is necessary is just to comprise the part which does not have a possibility of contacting a sliding surface within the period which uses a pressure | voltage resistant sliding member as a base | substrate part (B) by the material provided with the intensity | strength which can endure high load. The pressure-resistant sliding member has a two-layer structure of a sliding part (A) and a base part (B), and it is expensive by using a fluororesin fiber imparting wear resistance only for the sliding part (A). The amount of fluororesin fiber used can be reduced. This makes it possible to provide a material that achieves both low cost and sliding characteristics.
Further, although the sliding portion (A) is alternately laminated with one or more fluororesin fiber aggregates and fiber aggregates of other materials, the wear resistance slightly decreases, but the degree of the decrease In addition to providing a sufficient wear resistance that can withstand practical use, the cost can be further reduced.
本発明の耐圧摺動部材は、例えば、風車回転面を変動する風向に追尾させるヨー制御装置に用いるブレーキ部材のディスクパッドとして使用する。例えば、図４に示すように円筒型の真鍮製のカップに円盤形状にくり抜いた耐圧摺動部材をはめ込みブレーキ部材とする。得られたブレーキ部材を、ベアリングに複数個押し当てて使用する。ディスクパッドはナセルの質量及び風による負荷、また、ヨー動作時にはその動荷重も受け止めるため、これに耐えられる強度及び耐久性が必要である。本発明の耐圧摺動部材は、強度及び耐久性に優れるため、割れ、破損がなく使用できる。 The pressure-resistant sliding member of the present invention is used, for example, as a disc pad of a brake member used in a yaw control device that tracks a wind turbine rotating surface in a changing wind direction. For example, as shown in FIG. 4, a pressure-resistant sliding member hollowed out in a disc shape into a cylindrical brass cup is fitted into the brake member. A plurality of obtained brake members are used by pressing against the bearing. Since the disk pad receives the load due to the mass of the nacelle and the wind, and the dynamic load during the yaw operation, it needs strength and durability to withstand this. Since the pressure-resistant sliding member of the present invention is excellent in strength and durability, it can be used without being cracked or damaged.
また、ディスクパッドは継続的に摩耗するため、定期的に交換する必要があるが、その交換頻度はできるだけ少なくすることが好ましい。本発明では、ブレーキパッドの耐摩耗性を向上させたことにより、寿命が長くすることができ、交換頻度を少なくすることができた。さらに、耐摩耗性を向上させたことにより、摺動部（Ａ）の厚みを薄くしても同じ寿命とすることも可能となった。この場合、ブレーキ部材の軽量化、原料コストの削減、摩耗粉発生の低減効果が得られる。 In addition, since the disk pad wears continuously, it is necessary to replace the disk pad periodically. However, it is preferable that the replacement frequency be as low as possible. In the present invention, by improving the wear resistance of the brake pad, the service life can be extended and the replacement frequency can be reduced. Furthermore, by improving the wear resistance, the same life can be obtained even if the thickness of the sliding portion (A) is reduced. In this case, the effect of reducing the weight of the brake member, reducing the raw material cost, and reducing the generation of wear powder can be obtained.
本発明の耐圧摺動部材に用いるマトリックス樹脂は、フェノール樹脂、エポキシ樹脂、ビニルエステル樹脂、不飽和ポリエステル樹脂等の熱硬化性樹脂もしくはポリアミド、ポリアセタール等の熱可塑性樹脂であることが好ましい。なかでも、耐熱性の観点から、熱硬化性樹脂が好ましく、フッ素樹脂繊維との濡れ性がよいフェノール樹脂や繊維との接着性が良好で機械特性に優れたエポキシ樹脂がより好ましい。 The matrix resin used for the pressure-resistant sliding member of the present invention is preferably a thermosetting resin such as a phenol resin, an epoxy resin, a vinyl ester resin, or an unsaturated polyester resin, or a thermoplastic resin such as polyamide or polyacetal. Among these, from the viewpoint of heat resistance, a thermosetting resin is preferable, and a phenol resin having good wettability with a fluororesin fiber and an epoxy resin having excellent adhesive properties with a fiber and excellent mechanical properties are more preferable.
本発明で用いるフェノール樹脂としては、ノボラック型フェノール樹脂又はレゾール型フェノール樹脂を単独で使用してもよく、また両者を併用してもよい。成形安定性の観点では、レゾール型フェノール樹脂を用いることが好ましい。 As the phenol resin used in the present invention, a novolac type phenol resin or a resol type phenol resin may be used alone, or both may be used in combination. From the viewpoint of molding stability, it is preferable to use a resol type phenol resin.
本発明で用いるエポキシ樹脂としては、ビスフェノールＡグリシジルエーテル型エポキシ樹脂、ビスフェノールＦグリシジルエーテル型エポキシ樹脂、ビスフェノールＳグリシジルエーテル型エポキシ樹脂、ビスフェノールＡＤグリシジルエーテル型エポキシ樹脂、フェノールノボラック型エポキシ樹脂、ビフェニル型エポキシ樹脂、クレゾールノボラック型エポキシ樹脂が挙げられる。 Examples of the epoxy resin used in the present invention include bisphenol A glycidyl ether type epoxy resin, bisphenol F glycidyl ether type epoxy resin, bisphenol S glycidyl ether type epoxy resin, bisphenol AD glycidyl ether type epoxy resin, phenol novolac type epoxy resin, and biphenyl type epoxy. Examples thereof include resins and cresol novolac type epoxy resins.
以下、実施例により本発明を具体的に説明するが、本発明の範囲はこれらの実施例に限定されるものではない。 EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, the scope of the present invention is not limited to these Examples.
〔実施例１〕
（プリプレグの作製）
１００ｍｍ×１００ｍｍにカットしたＰＴＦＥ繊維織布（東レ株式会社製、商品名：トヨフロン（登録商標）、目付：２０１ｇ／ｍ２）及びガラス繊維織布（日東紡績株式会社製、目付：５７０ｇ／ｍ２）をそれぞれレゾール型フェノール樹脂ワニス（日立化成工業株式会社製、商品名：ＶＰ−５１Ｎ）に浸漬し、引き上げた後、１１０℃、１０分乾燥させ、ＰＴＦＥ繊維織布、ガラス繊維織布のプリプレグを得た。
[Example 1]
(Preparation of prepreg)
PTFE fiber woven fabric cut to 100 mm × 100 mm (trade name: Toyoflon (registered trademark), basis weight: 201 g / m 2 ) and glass fiber woven fabric (manufactured by Nitto Boseki Co., Ltd., basis weight: 570 g / m 2) ) In a resol type phenolic resin varnish (manufactured by Hitachi Chemical Co., Ltd., trade name: VP-51N), pulled up, dried at 110 ° C. for 10 minutes, PTFE fiber woven fabric, glass fiber woven prepreg Got.
（硬化物の作製）
ＰＴＦＥ繊維織布プリプレグを１７枚、ガラス繊維織布プリプレグを１枚、綿織布プリプレグ（日立化成工材株式会社製、商品名：ＧＰ−５１ＮＳ）を４０枚積層させ、３００トン油圧成形機（東邦プレス製作所株式会社製）を用いて、１６５℃、８ＭＰａで１０分プレスした後、１８０℃、１時間処理し、ＰＴＦＥ繊維織布積層部からなる摺動部（Ａ）：２．６ｍｍとガラス繊維織布積層部と綿織布積層部からなる基盤部（Ｂ）：４．０ｍｍで構成される硬化物を得た。
(Production of cured product)
17 PTFE fiber woven prepregs, 1 glass fiber woven prepreg, 40 cotton woven prepregs (trade name: GP-51NS, manufactured by Hitachi Chemical Co., Ltd.) Toho Press Mfg. Co., Ltd.) was pressed at 165 ° C. and 8 MPa for 10 minutes, treated at 180 ° C. for 1 hour, and made of a sliding part of PTFE fiber woven fabric (A): 2.6 mm and glass The base material (B) which consists of a fiber woven fabric laminated part and a cotton woven fabric laminated part: The hardened | cured material comprised by 4.0 mm was obtained.
（圧縮強度試験）
圧縮強度試験は、アムスラー式万能試験機（株式会社島津製作所製）を用い、摺動部（Ａ）及び基盤部（Ｂ）の層に直交する方向に荷重を加え、ＪＩＳ−Ａ １１０８に基づき圧縮強度試験を行った。圧縮強度は３００ＭＰａであった。
(Compressive strength test)
The compressive strength test uses an Amsler universal testing machine (manufactured by Shimadzu Corporation), applies a load in a direction perpendicular to the layers of the sliding part (A) and the base part (B), and compresses based on JIS-A 1108 A strength test was performed. The compressive strength was 300 MPa.
（摺動摩耗試験）
リングオンディスク型摩耗試験機（株式会社茨城製作所製）を用い摺動摩耗試験を行った５０ｍｍ×１０ｍｍ×５ｍｍに切り出したサンプルのＰＴＦＥ繊維織布側に、リング（材質：ＳＵＳ３０４（ＪＩＳ―Ｇ ４３０３：２００５）、外径：３４ｍｍ、内径：２５．６ｍｍ、巾：４．２ｍｍ）を押しあて、面圧：８ＭＰａ、回転速度：０．１６ｍ／ｓの条件で８時間測定した。時間当たりの摩耗深さは０．０２ｍｍ／ｈであった。
(Sliding wear test)
A ring (material: SUS304 (JIS-G 4303) is placed on the PTFE fiber woven fabric side of a sample cut into 50 mm × 10 mm × 5 mm, which was subjected to a sliding wear test using a ring-on-disk wear tester (manufactured by Ibaraki Seisakusho Co., Ltd.). : 2005), outer diameter: 34 mm, inner diameter: 25.6 mm, width: 4.2 mm), and measured for 8 hours under conditions of surface pressure: 8 MPa and rotational speed: 0.16 m / s. The wear depth per hour was 0.02 mm / h.
〔実施例２〕
ＰＴＦＥ繊維織布プリプレグと綿織布プリプレグを交互に２０枚積層し、さらに下部に綿織布プリプレグを４０枚積層させ、実施例１と同様にプレス、熱処理し、ＰＴＦＥ／綿交互積層部からなる摺動部（Ａ）：２．５ｍｍと綿織布積層部からなる基盤部（Ｂ）：４．０ｍｍで構成される硬化物を得た。実施例１と同様に圧縮強度試験を行った結果、圧縮強度は２８０ＭＰａであった。また、実施例１と同条件において摺動摩耗試験を行った結果、時間当たりの摩耗深さは０．１０ｍｍ／ｈであった。
[Example 2]
20 PTFE fiber woven fabric prepregs and 20 cotton woven fabric prepregs are laminated alternately, and 40 cotton woven fabric prepregs are further laminated on the lower part, and are pressed and heat-treated in the same manner as in Example 1 and consist of PTFE / cotton alternate laminated portions. The hardened | cured material comprised by the base part (B) which consists of a sliding part (A): 2.5mm and a cotton woven fabric laminated part: 4.0mm was obtained. As a result of performing the compressive strength test in the same manner as in Example 1, the compressive strength was 280 MPa. In addition, as a result of conducting a sliding wear test under the same conditions as in Example 1, the wear depth per hour was 0.10 mm / h.
〔実施例３〕
ＰＴＦＥ繊維織布プリプレグと綿織布プリプレグを交互に３０枚積層し、実施例１と同様にプレス、熱処理したＰＴＦＥ／綿交互積層部を５°傾け、厚み：２．５ｍｍに切り出した。これに、綿織布プリプレグを４０枚積層させ、実施例１と同様にプレス、熱処理し、ＰＴＦＥ／綿交互積層傾斜部からなる摺動部（Ａ）：２．５ｍｍと綿積層部からなる基盤部（Ｂ）：４．０ｍｍで構成される硬化物を得た。実施例１と同様に圧縮強度試験を行った結果、圧縮強度は２４０ＭＰａであった。また、実施例１と同条件において摺動摩耗試験を行った結果、時間当たりの摩耗深さは０．０６ｍｍ／ｈであった。
Example 3
Thirty PTFE fiber woven fabric prepregs and cotton woven fabric prepregs were alternately laminated, and the PTFE / cotton alternate laminated portion that was pressed and heat treated in the same manner as in Example 1 was tilted by 5 ° and cut into a thickness of 2.5 mm. 40 cotton woven fabric prepregs were laminated thereon, pressed and heat-treated in the same manner as in Example 1, and a sliding part (A) consisting of PTFE / cotton alternate laminated inclined parts (2.5 mm) and a base consisting of cotton laminated parts Part (B): A cured product composed of 4.0 mm was obtained. As a result of performing the compressive strength test in the same manner as in Example 1, the compressive strength was 240 MPa. In addition, as a result of conducting a sliding wear test under the same conditions as in Example 1, the wear depth per hour was 0.06 mm / h.
〔比較例１〕
綿繊維織布プリプレグを５０枚積層し、実施例１と同様にプレス、熱処理し、硬化物を得た。実施例１と同様に圧縮強度試験を行った。その結果、圧縮強度は２６０ＭＰａであった。また、実施例１と同条件において摺動摩耗試験を行った結果、時間当たりの摩耗深さは２．０ｍｍ／ｈであった。
[Comparative Example 1]
50 cotton fiber woven prepregs were laminated and pressed and heat treated in the same manner as in Example 1 to obtain a cured product. A compressive strength test was conducted in the same manner as in Example 1. As a result, the compressive strength was 260 MPa. Further, as a result of conducting a sliding wear test under the same conditions as in Example 1, the wear depth per hour was 2.0 mm / h.
〔比較例２〕
カーボン摺動材料（日立化成工業株式会社製、商品名：ヒタロックＨＣＢ−１０、ヒタロックは登録商標）を入手し、実施例１と同様に圧縮強度試験を行った。その結果、圧縮強度は１００ＭＰａであった。また、実施例１と同条件において摺動摩耗試験を行った結果、０．１７ｍｍ／ｈであった。
[Comparative Example 2]
A carbon sliding material (manufactured by Hitachi Chemical Co., Ltd., trade name: Hitalock HCB-10, Hitalock is a registered trademark) was obtained, and a compressive strength test was conducted in the same manner as in Example 1. As a result, the compressive strength was 100 MPa. Further, as a result of conducting a sliding wear test under the same conditions as in Example 1, it was 0.17 mm / h.
〔比較例３〕
フェノール樹脂（エア・ウォーター株式会社製、商品名：ベルパールＳ８９０、ベルパールは登録商標）：７０重量％、黒鉛（日本黒鉛工業株式会社製、商品名：ＣＢ１５０）：３０重量％を混練した後、１５０℃に熱した金型に入れ、２ＭＰａで５分プレスした後、１８０℃で８時間処理し、フェノール樹脂材料を得た。実施例１と同様に圧縮強度試験を行った結果、圧縮強度は２２０ＭＰａであった。また、実施例１と同条件において摺動摩耗試験を行った結果、時間当たりの摩耗深さは０．４０ｍｍ／ｈであった。
[Comparative Example 3]
After kneading phenol resin (product name: Bell Pearl S890, Bell Pearl is a registered trademark): 70% by weight, graphite (manufactured by Nippon Graphite Industry Co., Ltd., product name: CB150): 30% by weight, phenol resin (150%) A phenol resin material was obtained by placing in a mold heated to 0 ° C. and pressing at 2 MPa for 5 minutes and then treating at 180 ° C. for 8 hours. As a result of performing the compressive strength test in the same manner as in Example 1, the compressive strength was 220 MPa. In addition, as a result of conducting a sliding wear test under the same conditions as in Example 1, the wear depth per hour was 0.40 mm / h.
表１に実施例１〜３及び比較例１〜３の圧縮強度及び摩耗深さをまとめて示す。 Table 1 summarizes the compressive strength and wear depth of Examples 1 to 3 and Comparative Examples 1 to 3.
〔実施例４〕
実施例１で作製した硬化物を直径８０ｍｍの円盤形状にくり抜き、ブレーキパッドを製作した。
このブレーキパッドを、風車回転面を変動する風向に追尾させるヨー制御装置に用いるブレーキ部材（図４）に適用し、このブレーキパッドが、優れた耐圧性と耐摩耗性を示すことが確認された。
Example 4
The cured product produced in Example 1 was cut out into a disk shape with a diameter of 80 mm to produce a brake pad.
This brake pad was applied to a brake member (FIG. 4) used in a yaw control device that tracks the wind turbine rotating surface in a changing wind direction, and it was confirmed that this brake pad exhibits excellent pressure resistance and wear resistance. .
Claims (7)
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| JP2011011825A JP5691553B2 (en) | 2011-01-24 | 2011-01-24 | Pressure-resistant sliding member and brake pad |
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| JP2011011825A JP5691553B2 (en) | 2011-01-24 | 2011-01-24 | Pressure-resistant sliding member and brake pad |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017019886A (en) * | 2015-07-07 | 2017-01-26 | 日立化成株式会社 | Slide member, and windmill yaw controlling brake member |
| CN110985573A (en) * | 2019-12-17 | 2020-04-10 | 湘电风能有限公司 | Composite material and method for preparing wind power yaw brake pad |
| JP6806292B1 (en) * | 2019-07-30 | 2021-01-06 | 三菱瓦斯化学株式会社 | Molded article manufacturing method and composite materials |
| CN112228483A (en) * | 2019-11-06 | 2021-01-15 | 晋江凯燕新材料科技有限公司 | Modified organic filler material for friction material and its preparation process |
| WO2021019928A1 (en) * | 2019-07-30 | 2021-02-04 | 三菱瓦斯化学株式会社 | Formed product production method and composite material |
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| JPS4923564U (en) * | 1972-06-05 | 1974-02-28 | ||
| JPH05138790A (en) * | 1991-11-19 | 1993-06-08 | Mitsubishi Materials Corp | Manufacture of friction material |
| JP2002348390A (en) * | 2001-05-24 | 2002-12-04 | Daikin Ind Ltd | Prepreg sheet and fiber-reinforced plastic molding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS4923564U (en) * | 1972-06-05 | 1974-02-28 | ||
| JPH05138790A (en) * | 1991-11-19 | 1993-06-08 | Mitsubishi Materials Corp | Manufacture of friction material |
| JP2002348390A (en) * | 2001-05-24 | 2002-12-04 | Daikin Ind Ltd | Prepreg sheet and fiber-reinforced plastic molding |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017019886A (en) * | 2015-07-07 | 2017-01-26 | 日立化成株式会社 | Slide member, and windmill yaw controlling brake member |
| JP6806292B1 (en) * | 2019-07-30 | 2021-01-06 | 三菱瓦斯化学株式会社 | Molded article manufacturing method and composite materials |
| WO2021019928A1 (en) * | 2019-07-30 | 2021-02-04 | 三菱瓦斯化学株式会社 | Formed product production method and composite material |
| US11932741B2 (en) | 2019-07-30 | 2024-03-19 | Mitsubishi Gas Chemical Company, Inc. | Method for manufacturing molded article, and composite material |
| CN112228483A (en) * | 2019-11-06 | 2021-01-15 | 晋江凯燕新材料科技有限公司 | Modified organic filler material for friction material and its preparation process |
| CN112228483B (en) * | 2019-11-06 | 2022-05-17 | 晋江市凯燕新材料研究院股份有限公司 | Modified organic filling material for friction material and preparation process thereof |
| CN110985573A (en) * | 2019-12-17 | 2020-04-10 | 湘电风能有限公司 | Composite material and method for preparing wind power yaw brake pad |
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| JP5691553B2 (en) | 2015-04-01 |
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