JP2009103193A - Sliding surface material and slide member - Google Patents

Sliding surface material and slide member Download PDF

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JP2009103193A
JP2009103193A JP2007274674A JP2007274674A JP2009103193A JP 2009103193 A JP2009103193 A JP 2009103193A JP 2007274674 A JP2007274674 A JP 2007274674A JP 2007274674 A JP2007274674 A JP 2007274674A JP 2009103193 A JP2009103193 A JP 2009103193A
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sliding
fiber
resin
face material
cylindrical
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JP5215630B2 (en
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Hiroyuki Ogoshi
寛行 大越
Akira Onda
彰 恩田
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Oiles Industry Co Ltd
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Oiles Industry Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/203—Multilayer structures, e.g. sleeves comprising a plastic lining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/208—Methods of manufacture, e.g. shaping, applying coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/30—Fluoropolymers
    • F16C2208/32—Polytetrafluorethylene [PTFE]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/70—Polyesters, e.g. polyethylene-terephthlate [PET], polybutylene-terephthlate [PBT]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/80—Thermosetting resins
    • F16C2208/86—Epoxy resins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/80—Thermosetting resins
    • F16C2208/90—Phenolic resin
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/28—Shaping by winding impregnated fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/60—Thickness, e.g. thickness of coatings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Woven Fabrics (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding surface material and a slide member used for a slide member of a slide bearing or the like. <P>SOLUTION: The sliding surface material comprises a multi-woven fabric (25-50 wt.%) formed by a spun yarn of synthetic fiber and a filament yarn of ethylene tetra-fluoride resin fiber or a twisted yarn with the spun yarn; and a thermosetting synthetic resin (25-50 wt.%) containing an ethylene tetra-fluoride resin (25-35 wt.%) impregnated in it. Any one of synthetic fiber of a polyester fiber, a polyvinyl alcohol fiber and an aramid fiber. Any one of woven fabric of vertical double-woven, lateral double-woven, vertical and lateral double-woven and triple-woven is used. Any one of synthetic resin of a resol type phenol resin, an epoxy resin and an unsaturated polyester resin is used. The sliding surface material is integrally joined to a cylinder inner surface of a cylindrical back plate comprising a cylinder body made of metal, and the sliding surface material is made to a slide layer. The cylindrical back plate comprises a steel pipe. Thickness of the slide layer is 1 mm. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、滑り軸受等に用いられる摺動部材及びその部品である摺動面材に関する。   The present invention relates to a sliding member used for a sliding bearing and the like, and a sliding surface material which is a part thereof.

従来、低摩擦摺動部を表面層のみに有する軸受などの摺動部材としては、例えば特許文献１及び特許文献２などで提案されている。特許文献１は、積層摺動部材に関するものであり、特許文献２は、ふっ素樹脂繊維と他の繊維との交織布を低摩擦摺動面とする軸受の製造方法に関するものである。特許文献３には、固体潤滑剤粒と熱硬化性樹脂液とを一様に混合してなる混合液をシート状補強基材の一方の面から該基材の繊維組織間隙内に加圧充填する段階と、前記熱硬化性樹脂液と付着性を有する熱硬化性樹脂を前記基材の他方の面に付着する段階とからなる摺動部材の製造方法が開示されている。特許文献４には、（イ）低摩擦係数を有する樹脂加工シート基材を所望の寸法に裁断し、これを成形金型の芯金に捲きつける工程、（ロ）熱硬化性合成樹脂によって樹脂加工されたチップ基材を金型を用いて所望の成形物に近い形状に予備成形する工程、（ハ）樹脂加工シート基材を捲きつけた芯金を有する成形金型に上記予備成形物を装填し、延滞を加温すると同時に押型によって芯金の軸線方向に内容物を押圧して樹脂加工シート基材とチップ基材とを一体に圧縮成形する工程、以上（イ）（ロ）（ハ）の工程からなる内孔面に低摩擦摺動面層を有する合成樹脂摺動部材の製造方法が開示されている。   Conventionally, as a sliding member such as a bearing having a low friction sliding portion only on the surface layer, for example, Patent Document 1 and Patent Document 2 have been proposed. Patent Document 1 relates to a laminated sliding member, and Patent Document 2 relates to a bearing manufacturing method in which an unwoven fabric of a fluororesin fiber and another fiber is used as a low friction sliding surface. In Patent Document 3, a mixed liquid obtained by uniformly mixing solid lubricant particles and a thermosetting resin liquid is pressurized and filled into the fiber structure gap of the base material from one side of the sheet-like reinforcing base material. There is disclosed a method for manufacturing a sliding member comprising the steps of: attaching a thermosetting resin having adhesiveness to the thermosetting resin liquid to the other surface of the substrate. In Patent Document 4, (a) a step of cutting a resin-processed sheet base material having a low coefficient of friction into a desired size, and scooping it into a core metal of a molding die, (b) resin using a thermosetting synthetic resin (C) a step of preforming the processed chip base material into a shape close to a desired molded product using a mold; and (c) a molding die having a core metal to which a resin processed sheet base material is attached. Loading, heating the overdue, and simultaneously pressing the contents in the axial direction of the core metal by a pressing die to integrally compress and mold the resin processed sheet base material and the chip base material. The manufacturing method of the synthetic resin sliding member which has a low friction sliding surface layer in the inner-hole surface which consists of a process of ()) is disclosed.

特許文献１のように、積層構成の成形物においては、それが平板状あるいは半円筒、半球状のものであれば、表面層に低摩擦を有する樹脂加工シートを配して通常の圧縮成形法により何ら支障なく成形することができる。また、それが円筒状、長尺のパイプ状のものであっても積層管成形法（ロールド成形法）によればその積層物は容易に成形することができる。   As in Patent Document 1, in the case of a molded product having a laminated structure, if it is flat, semi-cylindrical or hemispherical, a resin processing sheet having low friction is disposed on the surface layer, and a normal compression molding method is used. Can be molded without any trouble. Moreover, even if it is a cylindrical or long pipe shape, the laminate can be easily formed by the laminated tube forming method (rolled forming method).

特公昭３９−１４８５２号公報Japanese Examined Patent Publication No. 39-14852 特公昭４７−５０８９３号公報Japanese Examined Patent Publication No. 47-50893 特開昭５６−１６０４２３号公報JP 56-160423 A 特開昭５７−１００１３４号公報JP-A-57-100134

しかしながら、表面層の樹脂加工シートの基体部が、特許文献１のように積層構成であると、軸受などの摺動部材としたときの耐荷重性に劣り、自ら摺動部材としての使用範囲が限定されるという問題がある。そこで、表面層の樹脂加工シートの基体部を金属製の円筒体、例えば鋼管とした場合は、積層管成形法は当然のことながら採用できない。特許文献２は、このような円筒内面に配される低摩擦摺動面層のシワやずれを防止すべく案出された製造方法であるが、ここに開示された技術は、圧縮成形法を排除し、射出成形、移送成形（基体部が金属の場合はダイキャスト法など）を採用するものであるが、製造方法が煩雑であるという問題があるばかりでなく、表面層の肉厚を薄肉とする必要があるなど、摺動部材としての使用範囲が限定されるという問題もある。   However, when the base portion of the resin processed sheet of the surface layer has a laminated structure as in Patent Document 1, the load resistance when used as a sliding member such as a bearing is inferior, and the range of use as a sliding member by itself is poor. There is a problem of being limited. Therefore, when the base portion of the resin processed sheet of the surface layer is a metal cylindrical body, for example, a steel pipe, the laminated pipe forming method cannot be adopted as a matter of course. Patent Document 2 is a manufacturing method devised to prevent such wrinkles and displacement of the low friction sliding surface layer disposed on the inner surface of the cylinder, but the technology disclosed herein employs a compression molding method. Eliminating and adopting injection molding and transfer molding (such as die-casting when the base is a metal), but not only has a complicated manufacturing method, but also has a thin surface layer. There is also a problem that the range of use as a sliding member is limited.

本発明者らは、上記諸点に鑑み、裏金としての金属製の円筒体の円筒内面に一体に接合されて摺動層を形成する摺動面材について鋭意検討を重ねた結果、合成繊維の糸と四ふっ化エチレン樹脂繊維の糸との交撚糸から形成した多重織織布に、四ふっ化エチレン樹脂を含有した熱硬化性合成樹脂を含浸した摺動面材は、その肉厚を厚くできるばかりでなく成形加工性に優れており、この摺動面材を裏金としての金属製の円筒体の円筒内面に一体に接合した複層摺動部材は、高荷重用途であって乾燥摩擦条件下での使用において優れた摩擦摩耗特性を発揮するとの知見を得た。   In view of the above-mentioned points, the inventors have conducted extensive studies on a sliding face material that is integrally joined to a cylindrical inner surface of a metal cylinder as a backing metal to form a sliding layer. Sliding face material made by impregnating a thermosetting synthetic resin containing a tetrafluoroethylene resin into a multi-woven fabric formed from a twisted yarn made of a yarn and ethylene tetrafluoride fiber can be thickened. In addition to excellent molding processability, this multi-sliding member that integrally joins this sliding face material to the inner surface of a metal cylinder as a backing metal is suitable for high load applications under dry friction conditions. It was found that it exhibits excellent friction and wear properties when used in

本発明は、上記知見に基づきなされたものであり、その目的とするところは、滑り軸受等の摺動部材に用いられる摺動面材及び該摺動面材を使用した複層摺動部材を提供することにある。   The present invention has been made on the basis of the above knowledge, and its object is to provide a sliding surface material used for a sliding member such as a sliding bearing and a multilayer sliding member using the sliding surface material. It is to provide.

本発明の摺動面材は、合成繊維の紡績糸と四ふっ化エチレン樹脂（以下「ＰＴＦＥ」という）繊維のフィラメント糸又は紡績糸との交撚糸から形成された多重織織布と、該多重織織布に含浸されたＰＴＦＥを含有した熱硬化性合成樹脂とからなることを特徴とする。   The sliding face material of the present invention includes a multi-woven fabric formed from a spun yarn of a synthetic yarn spun yarn and an ethylene tetrafluoride resin (hereinafter referred to as “PTFE”) fiber filament yarn or spun yarn; It consists of a thermosetting synthetic resin containing PTFE impregnated in a woven or woven fabric.

本発明の摺動面材によれば、表面にはＰＴＦＥ繊維のフィラメント糸又は紡績糸が露出していると共にＰＴＦＥ粒子が多重織織布の組織間隙に分散されているので低摩擦性が発揮され、該摺動面材を備えた摺動部材は、乾燥摩擦条件下での使用を可能とする。   According to the sliding surface material of the present invention, the filament yarn or spun yarn of PTFE fiber is exposed on the surface, and PTFE particles are dispersed in the interstices of the multi-woven fabric, so that low friction is exhibited. The sliding member provided with the sliding face material can be used under dry friction conditions.

また、本発明の摺動面材は、該多重織織布２５〜５０重量％とＰＴＦＥ２５〜３５重量％と熱硬化性合成樹脂２５〜５０重量％からなっている。   The sliding surface material of the present invention comprises 25 to 50% by weight of the multi-woven fabric, 25 to 35% by weight of PTFE, and 25 to 50% by weight of thermosetting synthetic resin.

本発明の摺動面材において、合成繊維はポリエステル繊維、ポリビニルアルコール繊維及びアラミド繊維の少なくとも一つから選択されることが好ましく、該合成繊維の紡績糸とＰＴＦＥ繊維のフィラメント糸又は紡績糸との交撚糸を使用して形成される多重織織布としては、経二重織、緯二重織、経緯二重織及び三重織の各組織から選ばれた織布であることが好ましい。 また、前記熱硬化性合成樹脂は、レゾール型フェノール樹脂、エポキシ樹脂及び不飽和ポリエステル樹脂から選択された合成樹脂であることが望ましい。
In the sliding face material of the present invention, the synthetic fiber is preferably selected from at least one of a polyester fiber, a polyvinyl alcohol fiber, and an aramid fiber, and a spun yarn of the synthetic fiber and a filament yarn or a spun yarn of PTFE fiber. The multiple woven fabric formed by using the twisted yarn is preferably a woven fabric selected from warp double weave, weft double weave, warp double weave and triple weave. The thermosetting synthetic resin is preferably a synthetic resin selected from a resol type phenol resin, an epoxy resin, and an unsaturated polyester resin.

本発明の摺動面材は、金属製の円筒体からなる裏金の円筒内面に一体に接合されることにより、該摺動面材を摺動層とした複層摺動部材とすることができる。   The sliding surface material of the present invention can be formed into a multi-layer sliding member having the sliding surface material as a sliding layer by being integrally joined to the inner surface of the cylinder made of a metal cylinder. .

金属製の円筒体からなる円筒状裏金の円筒内面に摺動面材を一体に接合した複層摺動部材の製造方法は、（ａ）ＰＴＦＥ粉末を含有した熱硬化性合成樹脂ワニスを、合成繊維の紡績糸を含む織布に含浸塗布する含浸塗布工程と、（ｂ）該含浸塗布工程にて、得られた織布を乾燥してＰＴＦＥ２５〜３５重量％と熱硬化性合成樹脂２５〜５０重量％と織布２５〜５０重量％からなる摺動面材を作製する摺動面材作製工程と、（ｃ）該摺動面材作製工程にて得られた摺動面材を、前記円筒状裏金の円筒内面の展開長さ及び前記円筒状裏金の高さに相当する寸法に切断すると共にこれを複数枚重ね合わせて積層する切断積層工程と、（ｄ）該切断積層工程にて得られた複数枚積層された摺動面材を、積層方向に加熱、加圧成形して積層摺動面材を作製する積層摺動面材作製工程と、（ｅ）該積層摺動面材作製工程にて得られた積層摺動面材に加熱下において曲げ加工を施し、該積層摺動面材を前記円筒状裏金の円筒内面の曲率に合致する曲率を有すると共に、両端に突合せ端部を有する予備円筒積層摺動面材に成形する予備円筒積層摺動面材成形工程と、（ｆ）該予備円筒積層摺動面材成形工程にて得られた予備円筒積層摺動面材の円筒外面に接着層を形成するとともに、前記金属製の円筒体からなる円筒状裏金の円筒内面に接着層を形成する接着層形成工程と、（ｇ）該接着層形成工程にて得られた予備円筒積層摺動面材を接着剤が塗布された円筒外面を前記円筒状裏金の円筒内面に形成された接着層と接触させて該円筒状裏金の円筒内面に挿入する挿入工程と、（ｈ）該円筒状裏金の円筒内面に挿入された予備円筒積層摺動面材の内面に、熱膨張係数が大きい金属製パイプを圧入する金属製パイプ圧入工程と、（ｉ）該金属製パイプ圧入工程にて得られた円筒状裏金、予備円筒積層摺動面材及び金属性パイプを乾燥炉内において１５０〜２００℃の温度で２０〜４０分間乾燥させる乾燥工程と、（ｊ）該乾燥工程にて得られた円筒状裏金、予備円筒積層摺動面材及び金属製パイプを冷却し、金属性パイプを収縮によりはずす冷却工程と、からなり、乾燥炉内において金属製パイプの径方向外方への熱膨張により予備円筒積層摺動面材を円筒状裏金の円筒内面側に圧接し、摺動面材からなる摺動層を該裏金の円筒内面に一体に接合するものである。前記円筒状裏金は、鋼管からなることが望ましい。前記摺動層の肉厚が少なくとも１ｍｍであることが望ましい。   A manufacturing method of a multi-layer sliding member in which a sliding face material is integrally joined to a cylindrical inner surface of a cylindrical back metal made of a metal cylinder includes: (a) synthesizing a thermosetting synthetic resin varnish containing PTFE powder; An impregnation application step of impregnating and applying to a woven fabric containing spun yarns of fibers; and (b) drying the resulting woven fabric in the impregnation application step to 25 to 35% by weight of PTFE and thermosetting synthetic resin 25 to 50. A sliding face material preparation step for producing a sliding face material comprising 25% by weight and 25 to 50% by weight of woven fabric, and (c) the sliding face material obtained in the sliding face material preparation step A cutting and laminating step of cutting and laminating a plurality of sheets corresponding to the developed length of the cylindrical inner surface of the cylindrical back metal and the height of the cylindrical back metal, and (d) obtained by the cutting and laminating step Heating and pressing the laminated sliding face materials in the laminating direction to make laminated sliding face materials (E) the laminated sliding face material obtained in the laminated sliding face material producing step is bent under heating, and the laminated sliding face material is formed into the cylindrical shape. A pre-cylindrical laminated sliding face forming step for forming a pre-cylindrical laminated sliding face material having a curvature matching the curvature of the cylindrical inner surface of the back metal and having a butt end at both ends; and (f) the pre-cylindrical laminated slide Adhesive layer that forms an adhesive layer on the cylindrical inner surface of the cylindrical back metal made of the cylindrical body made of the metal and forms an adhesive layer on the cylindrical outer surface of the preliminary cylindrical laminated sliding surface material obtained in the moving surface material molding step And (g) contacting the outer surface of the preliminarily cylindrical laminated sliding face material obtained in the adhesive layer forming step with the adhesive layer formed on the cylindrical inner surface of the cylindrical backing metal. And (h) inserting the cylindrical backing metal into the cylindrical inner surface of the cylindrical backing metal; A metal pipe press-fitting step for press-fitting a metal pipe having a large thermal expansion coefficient into the inner surface of the preliminary cylindrical laminated sliding face material inserted into the inner surface of the cylinder, and (i) the cylinder obtained in the metal pipe press-fitting step A drying step of drying the cylindrical backing plate, the preliminary cylindrical laminated sliding face material and the metallic pipe in a drying furnace at a temperature of 150 to 200 ° C. for 20 to 40 minutes, and (j) the cylindrical backing plate obtained in the drying step A cooling step of cooling the preliminary cylindrical laminated sliding face material and the metal pipe, and removing the metallic pipe by contraction, and the preliminary cylindrical lamination by the thermal expansion of the metallic pipe radially outward in the drying furnace. The sliding face material is pressed against the cylindrical inner surface side of the cylindrical backing metal, and the sliding layer made of the sliding surface material is integrally joined to the cylindrical inner surface of the backing metal. The cylindrical backing metal is preferably made of a steel pipe. It is desirable that the thickness of the sliding layer is at least 1 mm.

この製造方法によれば、金属製の円筒体からなる裏金の円筒内面に挿入された円筒状の摺動面材の内面に、熱膨張係数が大きい金属製パイプを圧入し、これらを乾燥炉内において１５０〜２００℃の温度で２０〜４０分間乾燥させた後、冷却する工程において、金属製パイプに生じた径方向外方への熱膨張によリ、該摺動面材には、裏金の円筒内面側に高い圧力が持続的に作用し、該摺動面材は裏金の円筒内面に圧接されるものであり、これにより摺動面材は該裏金の円筒内面に強固に接合一体化される。そして、この製造方法においては、何ら大型の設備を必要としないため、その製造コストを著しく減少させることができるばかりでなく、裏金の円筒内面に一体に接合された摺動面材の表面を何ら機械加工等を必要とすることなく寸法精度を確保し得るため、製品コストをも低減することができる。   According to this manufacturing method, a metal pipe having a large thermal expansion coefficient is press-fitted into the inner surface of a cylindrical sliding surface member inserted into the inner surface of a cylindrical back metal plate, and these are placed in a drying furnace. In the step of cooling at 150 to 200 ° C. for 20 to 40 minutes and then cooling, due to the thermal expansion outward in the radial direction generated in the metal pipe, A high pressure is continuously applied to the inner surface of the cylinder, and the sliding face material is pressed against the inner surface of the cylinder of the back metal, whereby the sliding surface material is firmly joined and integrated with the inner surface of the cylinder of the back metal. The Since this manufacturing method does not require any large equipment, not only can the manufacturing cost be remarkably reduced, but also the surface of the sliding face material integrally joined to the cylindrical inner surface of the back metal. Since dimensional accuracy can be ensured without requiring machining or the like, the product cost can also be reduced.

本発明によれば、合成繊維の糸とＰＴＦＥ繊維の糸との交撚糸から形成した多重織織布に、ＰＴＦＥを含有した熱硬化性合成樹脂を含浸してなるものであり、肉厚を厚くできるばかりでなく成形加工性に優れた摺動面材と、該摺動面材を裏金としての金属製の円筒体の円筒内面に一体に接合することにより高荷重用途であって乾燥摩擦条件下での使用において優れた摩擦摩耗特性を発揮する複層摺動部材を提供することができる。   According to the present invention, a multilayer woven fabric formed from a twisted yarn of a synthetic fiber yarn and a PTFE fiber yarn is impregnated with a thermosetting synthetic resin containing PTFE, and the wall thickness is increased. A sliding surface material that is not only excellent in moldability but also a high-load application in dry friction conditions by integrally bonding the sliding surface material to the inner surface of a metal cylinder as a backing metal. Thus, it is possible to provide a multilayer sliding member that exhibits excellent frictional wear characteristics when used in the above.

以下、本発明の摺動面材及び該摺動面材を使用した摺動部材（複層摺動部材）について詳細に説明する。   Hereinafter, the sliding face material of the present invention and the sliding member (multi-layer sliding member) using the sliding face material will be described in detail.

本発明の摺動面材は、合成繊維の紡績糸とＰＴＦＥ繊維のフィラメント糸又は紡績糸との交撚糸から形成された多重織織布に、ＰＴＦＥを含有した熱硬化性合成樹脂を含浸してなるものである。   The sliding surface material of the present invention is obtained by impregnating a thermosetting synthetic resin containing PTFE into a multi-woven fabric formed from a spun yarn of a synthetic fiber and a filament yarn or a spun yarn of a PTFE fiber. It will be.

本発明において、合成繊維としては、ポリエステル繊維、ポリビニルアルコール繊維（ビニロン繊維）及びアラミド繊維の少なくとも一つから選択されることが好ましい。ポリエステル繊維は、一般にジカルボン酸成分とジオール成分より重縮合されて得られるポリエステル繊維である。ポリエステルのカルボン酸成分としては、テレフタル酸、イソフタル酸、ナフタレン−２，６−ジカルボン酸等、ポリエステルのジオール成分としては、エチレングリコール、ハイドロキノン、ビスフェノールＡ、ビフェニル等があげられる。又、両成分を兼ねるものとしては、ｐ−ヒドロキシ安息香酸、２−オキシ−６−ナフトエ酸等が挙げられる。   In the present invention, the synthetic fiber is preferably selected from at least one of polyester fiber, polyvinyl alcohol fiber (vinylon fiber), and aramid fiber. The polyester fiber is a polyester fiber generally obtained by polycondensation from a dicarboxylic acid component and a diol component. Examples of the carboxylic acid component of the polyester include terephthalic acid, isophthalic acid, and naphthalene-2,6-dicarboxylic acid. Examples of the diol component of the polyester include ethylene glycol, hydroquinone, bisphenol A, and biphenyl. Moreover, as both components, p-hydroxybenzoic acid, 2-oxy-6-naphthoic acid, etc. are mentioned.

ポリビニルアルコール繊維（ビニロン繊維）は、ポリ酢酸ビニルをアルカリでケン化してポリビニルアルコール（ＰＶＡ）とし、その水溶液を湿式又は乾式紡糸をして繊維にしたものである。
Polyvinyl alcohol fiber (vinylon fiber) is obtained by saponifying polyvinyl acetate with alkali to form polyvinyl alcohol (PVA), and wet or dry spinning the aqueous solution to form a fiber.

アラミド繊維は、その分子骨格によりパラ型とメタ型に大別される。メタ系アラミド繊維は、メタフェニレンジアミン（ＭＰＤＡ）とイソフタル酸ジクロライド（ＩＰＣ）を原料として、縮重合したポリメタフェニレンイソフタルアミド（ＭＰＩＡ）を繊維化したものである。そして、メタ系アラミド繊維の具体例としては、テイジン社製の「コーネックス（商標）」が挙げられる。   Aramid fibers are roughly classified into para and meta types according to their molecular skeletons. The meta-aramid fiber is a fiber obtained by polycondensation polymetaphenylene isophthalamide (MPIA) using metaphenylenediamine (MPDA) and isophthalic acid dichloride (IPC) as raw materials. A specific example of the meta-aramid fiber is “Conex (trademark)” manufactured by Teijin.

パラ系アラミド繊維は、通常アミド結合を少なくとも一個有する繊維であって、少なくとも一個のベンゼン環がパラ位で結合している繊維である。例えば、ポリパラフェニレンテレフタルアミド繊維、ポリパラフェニレンジフェニルエーテルテレフタルアミド繊維又はコポリパラフェニレン−３，４'−オキシジフェニレンテレフタルアミド繊維等が挙げられる。そして、パラ系アラミド繊維の具体例としては、米国デュポン、東レ・デュポン社製の「ケブラー（商標）」、テイジン・トワロン社製の「トワロン（商標）」、テイジン社製の「テクノーラ（商標）」が挙げられる。   Para-aramid fibers are usually fibers having at least one amide bond, and having at least one benzene ring bonded at the para position. Examples thereof include polyparaphenylene terephthalamide fiber, polyparaphenylene diphenyl ether terephthalamide fiber, and copolyparaphenylene-3,4'-oxydiphenylene terephthalamide fiber. Specific examples of the para-aramid fiber include DuPont in the United States, “Kevlar (trademark)” manufactured by Toray DuPont, “Twaron (trademark)” manufactured by Teijin Twaron, and “Technora (trademark) manufactured by Teijin. ".

上記した合成繊維の紡糸の形態は、後述する熱硬化性合成樹脂を含浸保持するという観点から紡績糸であることが好ましい。   The spinning form of the synthetic fiber is preferably a spun yarn from the viewpoint of impregnating and holding a thermosetting synthetic resin described later.

ＰＴＦＥ繊維は、フィラメント糸、マルチフィラメント糸及び紡績糸のいずれも使用できる。   As the PTFE fiber, any of filament yarn, multifilament yarn and spun yarn can be used.

上記合成繊維の紡績糸とＰＴＦＥ繊維のフィラメント糸、マルチフィラメント糸及び紡績糸のいずれかとの交撚糸から多重織織布が形成される。多重織織布としては、経二重織、緯二重織及び三重織の各組織から選ばれた織布が使用されて好適であり、その肉厚はおおよそ２〜４ｍｍとされる。図３は、合成繊維の紡績糸とＰＴＦＥ繊維の紡績糸との交撚糸から形成された接結二重織織布の断面図であり、図４は、前記図３に示す接結二重織織布に、さらに中間層を備えた普通接結三重織織布の断面図を示すものである。図中、符号１ａ、１ｂは、交撚糸からなる緯（よこ）糸、２ａ、２ｂは、交撚糸からなる経（たて）糸、３ａ、３ｂ、５ａ、５ｂは、交撚糸からなる緯糸、４ａ、４ｂ、６ａ、６ｂは、交撚糸からなる経糸である。そして、摺動面材中に含まれる多重織織布の量は、２５〜５０重量％が適当である。多重織織布の量が２５重量％未満では、充分な摩擦摩耗特性が発揮されず、また５０重量％を超えると後述する熱硬化性合成樹脂の量が少なくなり、成形性を著しく阻害する虞がある。   A multi-woven fabric is formed from a spun yarn of the synthetic fiber spun yarn and PTFE fiber filament yarn, multifilament yarn or spun yarn. As the multi-woven fabric, a woven fabric selected from warp double weave, weft double weave, and triple weave is preferably used, and its thickness is approximately 2 to 4 mm. FIG. 3 is a cross-sectional view of a bonded double woven fabric formed from a twisted yarn of a synthetic fiber spun yarn and a PTFE fiber spun yarn, and FIG. 4 is a bonded double woven fabric shown in FIG. FIG. 2 is a cross-sectional view of a normally woven triple woven fabric provided with an intermediate layer on the woven fabric. In the figure, reference numerals 1a and 1b are weft yarns made of twisted yarns, 2a and 2b are warp yarns made of twisted yarns, 3a, 3b, 5a and 5b are weft yarns made of twisted yarns, 4a, 4b, 6a, 6b are warp yarns made of twisted yarns. The amount of the multi-woven fabric contained in the sliding face material is suitably 25 to 50% by weight. If the amount of the multi-woven fabric is less than 25% by weight, sufficient friction and wear characteristics are not exhibited, and if it exceeds 50% by weight, the amount of the thermosetting synthetic resin described later decreases, and the moldability may be significantly impaired. There is.

本発明において使用される熱硬化性合成樹脂は、レゾール型フェノール樹脂、エポキシ樹脂及び不飽和ポリエステル樹脂などが好適であり、これら熱硬化性合成樹脂の揮発性溶剤としては、メタノール、アセトン、メチルエチルケトンなど使用する熱硬化性合成樹脂によって適宜選択される。そして、摺動面材中に含まれる熱硬化性合成樹脂の量は、３０〜５０重量％が適当である。熱硬化性合成樹脂の量が３０重量％未満では、摺動面材の成形加工性に支障をきたし、また５０重量％を超えると摺動面材の機械的強度を低下させる。   The thermosetting synthetic resin used in the present invention is preferably a resol type phenol resin, an epoxy resin, an unsaturated polyester resin, or the like, and volatile solvents of these thermosetting synthetic resins include methanol, acetone, methyl ethyl ketone, and the like. It selects suitably by the thermosetting synthetic resin to be used. The amount of the thermosetting synthetic resin contained in the sliding face material is suitably 30 to 50% by weight. When the amount of the thermosetting synthetic resin is less than 30% by weight, the molding processability of the sliding face material is hindered, and when it exceeds 50% by weight, the mechanical strength of the sliding face material is lowered.

上記熱硬化性合成樹脂に含有されるＰＴＦＥは、成形用のモールディングパウダー（以下「高分子量ＰＴＦＥ」と略称する。）と、放射線照射などにより高分子量ＰＴＦＥに比べて分子量を低下させた、粉砕し易くまた分散性がよい、主に添加材料として使用されるＰＴＦＥ（以下「低分子量ＰＴＦＥ」と略称する。）が使用できる。   PTFE contained in the thermosetting synthetic resin is pulverized by molding powder (hereinafter abbreviated as “high molecular weight PTFE”) and a molecular weight lower than that of the high molecular weight PTFE by irradiation or the like. PTFE which is easy and has good dispersibility and which is mainly used as an additive material (hereinafter abbreviated as “low molecular weight PTFE”) can be used.

高分子量ＰＴＦＥの具体例としては、三井デュポンフロロケミカル社製の「テフロン（登録商標）７Ｊ」、「テフロン（登録商標）７Ａ-Ｊ」、「テフロン（登録商標）７０-Ｊ」等、ダイキン工業社製の「ポリフロンＭ‐１２（商標）」等、旭硝子社製の「フルオンＧ１６３（商標）」、「フルオンＧ１９０（商標）」等が挙げられる。 Specific examples of high molecular weight PTFE include “Teflon (registered trademark) 7J”, “Teflon (registered trademark) 7A-J”, “Teflon (registered trademark) 70-J” manufactured by Mitsui DuPont Fluorochemical Co., Ltd., Daikin Industries “Polyflon M-12 (trademark)” manufactured by Asahi Glass Co., Ltd., “Fullon G163 (trademark)”, “Fullon G190 (trademark)” manufactured by Asahi Glass Co., Ltd., and the like.

また、低分子量ＰＴＦＥの具体例としては、三井デュポンフロロケミカル社製の「ＴＬＰ-１０Ｆ（商標）」等、ダイキン工業社製の「ルブロンＬ‐５（商標）」等、旭硝子社製の「フルオンＬ１５０Ｊ（商標）」、「フルオンＬ１６９Ｊ（商標）」等、喜多村社製の「ＫＴＬ‐８Ｎ（商標）」等が挙げられる。   Specific examples of low molecular weight PTFE include “TLP-10F (trademark)” manufactured by Mitsui DuPont Fluorochemical Co., Ltd., “Lublon L-5 (trademark)” manufactured by Daikin Industries, Ltd., and “Fullon” manufactured by Asahi Glass Co., Ltd. "L150J (trademark)", "Full-on L169J (trademark)", "KTL-8N (trademark)" manufactured by Kitamura Co., Ltd., and the like.

本発明においては、上記高分子量ＰＴＦＥ及び低分子量ＰＴＦＥのいずれも使用することができるが、上記熱硬化性合成樹脂と混合するにあたって、均一に分散しボイドを生成しにくくするためには低分子量ＰＴＦＥの粉末が好ましい。また、ＰＴＦＥ粉末の平均粒径は、均一に分散し、ボイドの生成を防ぐという観点から１〜５０μｍ、好ましくは１〜３０μｍである。   In the present invention, both the high molecular weight PTFE and the low molecular weight PTFE can be used, but when mixed with the thermosetting synthetic resin, the low molecular weight PTFE is used to uniformly disperse and make it difficult to generate voids. Is preferred. Moreover, the average particle diameter of PTFE powder is 1-50 micrometers from a viewpoint of disperse | distributing uniformly and preventing the production | generation of a void, Preferably it is 1-30 micrometers.

そして、摺動面材中に含まれるＰＴＦＥの量は、１０〜３０重量％が適当である。ＰＴＦＥの量が１０重量％未満では、摩擦摩耗特性の向上に効果が得られず、また３０重量％を超えると成形の際に樹脂の粘度が増大し、ボイドを生成する虞があるのと、上記熱硬化性合成樹脂の接着性を低下させ、複層摺動部材としての強度低下を来たす虞がある。   The amount of PTFE contained in the sliding face material is suitably 10 to 30% by weight. If the amount of PTFE is less than 10% by weight, the effect of improving the friction and wear characteristics cannot be obtained, and if it exceeds 30% by weight, the viscosity of the resin increases during molding, and voids may be generated. There is a possibility that the adhesiveness of the thermosetting synthetic resin is lowered and the strength of the multilayer sliding member is lowered.

次に、上記した摺動面材及び該摺動面材を使用した複層摺動部材について、図に示す好ましい例に基づいて説明する。   Next, the above-described sliding surface material and a multilayer sliding member using the sliding surface material will be described based on preferred examples shown in the drawings.

摺動面材は、次のようにして作製される。図１は、摺動面材（樹脂加工基材）の製造装置を示す説明図である。図１に示す製造装置において、アンコイラ１０に巻かれた多重織織布からなる補強基材１１は、送りローラ１２によってＰＴＦＥ粉末を均一に分散含有した熱硬化性合成樹脂ワニス１３を貯えた容器１４に送られ、容器１４内に設けられた案内ローラ１５及び１６によって容器１４内に貯えられた該熱硬化性合成樹脂ワニス１３内を通過せしめられることにより、補強基材１１の表面に該熱硬化性合成樹脂ワニス１３が塗工される。ついで、該熱硬化性合成樹脂ワニス１３が塗工された補強基材１１は送りローラ１７によって圧縮ロール１８及び１９に送られ、圧縮ロール１８及び１９によって補強基材１１の表面に塗工された該熱硬化性合成樹脂ワニス１３繊維組織隙間にまで含浸せしめられる。そして、熱硬化性合成樹脂ワニス４１３含浸塗布された補強基材１１に対して乾燥炉２０内で溶剤を飛ばすと同時に該樹脂ワニス１３の反応が進められ、これにより成形可能な摺動面材（樹脂加工基材）２１が作製される。   The sliding face material is produced as follows. FIG. 1 is an explanatory view showing an apparatus for manufacturing a sliding face material (resin-processed base material). In the manufacturing apparatus shown in FIG. 1, a reinforcing base material 11 made of multiple woven fabrics wound around an uncoiler 10 is a container 14 in which a thermosetting synthetic resin varnish 13 containing PTFE powder uniformly dispersed by a feed roller 12 is stored. And is passed through the thermosetting synthetic resin varnish 13 stored in the container 14 by guide rollers 15 and 16 provided in the container 14, so that the surface of the reinforcing base 11 is cured with the thermosetting resin. The synthetic resin varnish 13 is applied. Next, the reinforcing base material 11 coated with the thermosetting synthetic resin varnish 13 was sent to the compression rolls 18 and 19 by the feed roller 17 and applied to the surface of the reinforcing base material 11 by the compression rolls 18 and 19. The thermosetting synthetic resin varnish 13 is impregnated into the fiber structure gap. And the reaction of this resin varnish 13 is advanced simultaneously with the solvent being blown off in the drying furnace 20 with respect to the reinforcing base material 11 impregnated and applied with the thermosetting synthetic resin varnish 413. Resin processing base material) 21 is produced.

図２は、こうして作製された摺動面材を示す斜視図である。このように形成された摺動面材２１の肉厚は、おおよそ１〜２ｍｍとされる。熱硬化性合成樹脂を揮発性溶剤に溶かして形成される熱硬化性合成樹脂ワニスの固形分は、おおむね３０〜６５重量％であり、該樹脂ワニスの粘度は、おおむね８００〜５０００ｃＰ、就中１０００〜４０００ｃＰが好ましい。   FIG. 2 is a perspective view showing the sliding face material thus produced. The thickness of the sliding face material 21 formed in this way is approximately 1 to 2 mm. The solid content of the thermosetting synthetic resin varnish formed by dissolving the thermosetting synthetic resin in a volatile solvent is about 30 to 65% by weight, and the viscosity of the resin varnish is about 800 to 5000 cP, especially 1000. -4000 cP is preferred.

次に、摺動面材２１を使用した複層摺動部材２２及びその製造方法について説明する。   Next, the multilayer sliding member 22 using the sliding face material 21 and the manufacturing method thereof will be described.

複層摺動部材２２（図９参照）は、金属製の円筒体からなる円筒状裏金２３と、該円筒状裏金２３の円筒内面２４に一体に接合された摺動面材２１とから形成されており、該摺動面材２１を摺動層とするものである。ここで、円筒状裏金２３としては、ＪＩＳＧ３４４５で規定されている機械構造用炭素鋼鋼管（ＳＴＫＭ１３Ｃ）などが使用されて好適である。   The multilayer sliding member 22 (see FIG. 9) is formed of a cylindrical back metal 23 made of a metal cylinder, and a sliding surface material 21 integrally joined to a cylindrical inner surface 24 of the cylindrical back metal 23. The sliding face material 21 is used as a sliding layer. Here, as the cylindrical back metal 23, a carbon steel pipe for machine structure (STKM13C) defined by JISG3445 is preferably used.

図５は、金属製の円筒体からなる円筒状裏金の斜視図である。前記金属製の円筒体からなる円筒状裏金２３として、機械構造用炭素鋼鋼管を準備し、該円筒状裏金２３の円筒内面２４に接着層２５を形成する。接着層２５としては、エポキシ樹脂を溶剤としてのアセトンに溶解し、これを接着剤として該円筒状裏金２３の円筒内面２４に一様に塗布、乾燥して形成される。   FIG. 5 is a perspective view of a cylindrical back metal made of a metal cylinder. A carbon steel pipe for machine structure is prepared as the cylindrical back metal 23 made of the metal cylinder, and an adhesive layer 25 is formed on the cylindrical inner surface 24 of the cylindrical back metal 23. The adhesive layer 25 is formed by dissolving an epoxy resin in acetone as a solvent, and uniformly applying it to the cylindrical inner surface 24 of the cylindrical back metal 23 as an adhesive and drying it.

図６は、裏金の円筒内面の展開長さ及び裏金の高さに相当する寸法に切断した摺動面材を示す平面図である。前記摺動面材（樹脂加工基材）２１を準備し、該摺動面材２１を前記円筒状裏金２３の円筒内面２４の展開長さに相当する長さｌ１と該裏金２３の高さｈに相当する長さｌ２の寸法に切断すると共に、該摺動面材２１を加熱下において、前記円筒状裏金２３の円筒内周面２４の曲率と合致する曲率を有する円筒状に捲回し、両端に突合せ端部２６及び２６を有する予備円筒摺動面材２７に成形する。   FIG. 6 is a plan view showing the sliding face material cut into a dimension corresponding to the developed length of the cylindrical inner surface of the back metal and the height of the back metal. The sliding surface material (resin-processed base material) 21 is prepared, and the sliding surface material 21 has a length 11 corresponding to the developed length of the cylindrical inner surface 24 of the cylindrical back metal 23 and a height h of the back metal 23. And is wound into a cylindrical shape having a curvature matching the curvature of the cylindrical inner peripheral surface 24 of the cylindrical backing metal 23 under heating. Are formed into a preliminary cylindrical sliding face material 27 having butt end portions 26 and 26.

図７は、予備円筒摺動面材を示す斜視図である。該予備円筒摺動面材２７の外周面２８に、エポキシ樹脂を溶剤としてのアセトンに溶解して作製した接着剤を塗布し、乾燥して接着層２９を形成する。   FIG. 7 is a perspective view showing a preliminary cylindrical sliding face material. An adhesive produced by dissolving an epoxy resin in acetone as a solvent is applied to the outer peripheral surface 28 of the preliminary cylindrical sliding surface material 27 and dried to form an adhesive layer 29.

図８は、複層摺動部材の製造工程を示す斜視図である。該予備円筒摺動面材２７を前記金属製の円筒体からなる円筒状裏金２３の円筒内面２４に挿入したのち、該予備円筒摺動面材２７の内面３０に、熱膨張係数が大きい金属製パイプ３１を圧入する。金属製パイプ３１としては、黄銅（熱膨張係数２０．５×１０-６／℃）、アルミニウム青銅（熱膨張係数１７×１０-６／℃）、オーステナイト系ステンレス鋼（熱膨張係数１７．３×１０-６／℃）などが挙げられる。   FIG. 8 is a perspective view showing the manufacturing process of the multilayer sliding member. After the preliminary cylindrical sliding face material 27 is inserted into the cylindrical inner surface 24 of the cylindrical back metal 23 made of the metal cylinder, the preliminary cylindrical sliding face material 27 is made of a metal having a large thermal expansion coefficient. The pipe 31 is press-fitted. As the metal pipe 31, brass (thermal expansion coefficient 20.5 × 10 −6 / ° C.), aluminum bronze (thermal expansion coefficient 17 × 10 −6 / ° C.), austenitic stainless steel (thermal expansion coefficient 17.3 × 10-6 / ° C).

裏金２３の円筒内面２４に挿入された予備円筒摺動面材２７の内面３０に金属製のパイプ３１を圧入した状態で、これらを乾燥炉内において１５０〜２００℃の温度で２０〜４０分間乾燥させた後、冷却する。   In a state where the metal pipe 31 is press-fitted into the inner surface 30 of the preliminary cylindrical sliding face member 27 inserted into the cylindrical inner surface 24 of the back metal 23, these are dried in a drying furnace at a temperature of 150 to 200 ° C. for 20 to 40 minutes. Allow to cool.

この工程において、金属製のパイプ３１は乾燥炉内の温度上昇に伴い径方向外方に熱膨張を来たし、この熱膨張により予備円筒摺動面材２７は裏金２４の円筒内面２４側に強く圧接されることになり、該摺動面材２１からなる摺動層が裏金２３の円筒内面２４に一体に接合された複層摺動部材２２が得られる。この複層摺動部材２２において、予備円筒摺動面材２７に形成された両端の突合せ端部２６及び２６は当接するので、該摺動層に隙間を生じることはない。図９は、完成した複層摺動部材を示す斜視図である。   In this process, the metal pipe 31 thermally expands radially outward as the temperature in the drying furnace rises. Due to this thermal expansion, the preliminary cylindrical sliding face member 27 is strongly pressed against the cylindrical inner surface 24 side of the back metal 24. As a result, a multilayer sliding member 22 in which the sliding layer made of the sliding face material 21 is integrally joined to the cylindrical inner surface 24 of the back metal 23 is obtained. In this multi-layer sliding member 22, the butt end portions 26 and 26 at both ends formed on the preliminary cylindrical sliding surface material 27 are in contact with each other, so that no gap is generated in the sliding layer. FIG. 9 is a perspective view showing the completed multilayer sliding member.

以下、本発明を実施例により詳細に説明するが、本発明は、その要旨を超えない限り、以下の実施例に限定されるものではない。   EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited to a following example, unless the summary is exceeded.

裏金として、内径５０ｍｍ、外径６２ｍｍ、長さ４８ｍｍの機械構造用炭素鋼鋼管（ＳＴＫＭ１３Ｃ）を準備した。エポキシ樹脂を溶剤としてのアセトンに溶解し、これを接着剤として裏金の円筒内面に一様に塗布し、乾燥して該円筒内面に接着層を形成した。   As a backing metal, a carbon steel pipe for mechanical structure (STKM13C) having an inner diameter of 50 mm, an outer diameter of 62 mm, and a length of 48 mm was prepared. The epoxy resin was dissolved in acetone as a solvent, and this was uniformly applied to the inner surface of the cylinder of the back metal as an adhesive and dried to form an adhesive layer on the inner surface of the cylinder.

合成繊維としてメタ系アラミド繊維（テイジン社製の「コーネックス（商標）」）の紡績糸とＰＴＦＥ繊維の紡績糸との交撚糸から普通接結三重織織布を作製した。この三重織織布の肉厚は、３．６ｍｍであった。   As a synthetic fiber, a normally woven triple woven fabric was prepared from a spun yarn of a spun yarn of a meta-aramid fiber ("Conex (trademark)" manufactured by Teijin) and a spun yarn of PTFE fiber. The wall thickness of this triple woven fabric was 3.6 mm.

樹脂固形分６４．５重量％を有するレゾール型フェノール樹脂ワニス１００重量部と平均粒径１〜３０μｍの低分子量ＰＴＦＥ（喜多村社製の「ＫＴＬ‐８Ｎ（商標）」）粉末２０重量部とを混合し、これにメタノール１５重量部を加えて粘度を２７５０〜２８００ｃｐｓに調整した混合液を作製した。この混合液を前記図１に示す製造装置の容器に貯えた。図１に示す製造装置において、アンコイラに巻かれた三重織織布からなる補強基材を、送りローラによっ混合溶液を貯えた容器に送り、容器内に設けられた案内ローラによって容器内に貯えられた該混合液内を通過せしめることにより、補強基材の表面に該混合液を塗工した。ついで、該混合溶液を塗工した補強基材を送りローラによって圧縮ロールに送り、圧縮ロールによって補強基材の表面に塗工した該混合溶液を繊維組織隙間にまで含浸せしめた。そして、混合溶液を含浸塗布した補強基材を乾燥炉内に送り、該補強基材中の溶剤を飛ばすと同時に該混合溶液の反応を進め、補強基材（三重織織布）２５重量％と低分子量ＰＴＦＥ２５重量％と残部レゾール型フェノール樹脂（５０重量％）からなる成形可能な摺動面材（樹脂加工基材）を作製した。   100 parts by weight of a resol type phenolic resin varnish having a resin solid content of 64.5% by weight and 20 parts by weight of a low molecular weight PTFE (“KTL-8N ™” manufactured by Kitamura Co., Ltd.) powder having an average particle diameter of 1 to 30 μm are mixed. Then, 15 parts by weight of methanol was added thereto to prepare a mixed solution having a viscosity adjusted to 2750-2800 cps. This mixed solution was stored in the container of the manufacturing apparatus shown in FIG. In the manufacturing apparatus shown in FIG. 1, a reinforcing base material made of a triple woven fabric wound around an uncoiler is fed to a container in which the mixed solution is stored by a feed roller, and is stored in the container by a guide roller provided in the container. The mixture was applied to the surface of the reinforcing substrate by allowing the mixture to pass through. Next, the reinforcing base material coated with the mixed solution was fed to a compression roll by a feed roller, and the mixed solution coated on the surface of the reinforcing base material by a compression roll was impregnated to the fiber structure gap. Then, the reinforcing base material impregnated and coated with the mixed solution is sent into a drying furnace, the solvent in the reinforcing base material is blown off, and at the same time the reaction of the mixed solution proceeds, and the reinforcing base material (triple woven fabric) is 25% by weight. A moldable sliding surface material (resin-processed base material) comprising 25% by weight of low molecular weight PTFE and the remaining resol type phenol resin (50% by weight) was produced.

この摺動面材を、前記裏金の円筒内面の展開長さに相当する長さと該裏金の高さに相当する長さの寸法、すなわち展開長さ１５７ｍｍ、高さ４８ｍｍの長方形状の寸法に切断した。ついで、該摺動面材を加熱下において、前記裏金の円筒内面の曲率と合致する曲率を有する円筒状に捲回し、両端に突合せ端部を有する予備円筒摺動面材に成形した。   This sliding face material is cut into a length corresponding to the developed length of the cylindrical inner surface of the back metal and a length corresponding to the height of the back metal, that is, a rectangular size of developed length 157 mm and height 48 mm. did. Subsequently, the sliding face material was wound into a cylindrical shape having a curvature matching the curvature of the cylindrical inner surface of the back metal under heating, and formed into a preliminary cylindrical sliding face material having butt end portions at both ends.

エポキシ樹脂を溶剤としてのアセトンに溶解し、これを接着剤として前記予備円筒摺動面材の円筒外面に一様に塗布し、乾燥して該円筒外面に接着層を形成した。   An epoxy resin was dissolved in acetone as a solvent, and this was uniformly applied as an adhesive to the cylindrical outer surface of the preliminary cylindrical sliding face material and dried to form an adhesive layer on the cylindrical outer surface.

円筒外面に接着層が形成された予備円筒摺動面材を、前記裏金の円筒内面に挿入したのち、該予備円筒摺動面材の内面に、熱膨張係数が大きい金属製パイプを圧入した。金属製パイプとしては、黄銅（熱膨張係数２０．５×１０-６／℃）を使用した。   After inserting a preliminary cylindrical sliding face material having an adhesive layer formed on the outer surface of the cylinder into the cylindrical inner surface of the backing metal, a metal pipe having a large thermal expansion coefficient was pressed into the inner surface of the preliminary cylindrical sliding face material. Brass (thermal expansion coefficient 20.5 × 10 −6 / ° C.) was used as the metal pipe.

裏金の円筒内面に挿入された予備円筒摺動面材の内面に金属製のパイプを圧入した状態で、これらを乾燥炉内において１８０℃の温度で３０分間加圧成形し、冷却した後乾燥炉から取出し、裏金の円筒内面に摺動面材からなる摺動層を具備した複層摺動部材を得た。摺動層の肉厚は、１．６ｍｍであった。   In a state where metal pipes are press-fitted into the inner surface of the preliminary cylindrical sliding face material inserted into the cylindrical inner surface of the back metal, these are press-molded at a temperature of 180 ° C. for 30 minutes in the drying furnace, cooled, and then the drying furnace The multilayer sliding member which provided the sliding layer which consists of a sliding face material in the cylindrical inner surface of the back metal was obtained. The thickness of the sliding layer was 1.6 mm.

この工程において、金属製のパイプは乾燥炉内の温度上昇に伴い径方向外方に熱膨張を来たし、この熱膨張により予備円筒摺動面材は裏金の円筒内面側に強く圧接されることになり、該摺動面材からなる摺動層が裏金の円筒内面に一体に接合される。   In this process, the metal pipe thermally expands radially outward as the temperature in the drying furnace rises, and the preliminary cylindrical sliding face material is strongly pressed against the cylindrical inner surface of the back metal by this thermal expansion. Thus, the sliding layer made of the sliding face material is integrally joined to the cylindrical inner surface of the back metal.

このようにして作製された複層摺動部材は、
荷重（面圧） ４９ＭＰａ（５００ｋｇｆ／ｃｍ２）
すべり速度 ０．５ｍ／ｍｉｎ
揺動角度 ±４５°
相手材 Ｓ４５Ｃ高周波焼入れ
試験サイクル ３万サイクル
潤滑 なし（乾燥潤滑）
の試験条件でのジャーナル揺動試験において、摩擦係数０．０４、摩耗量４０μｍと優れた摩擦摩耗特性を発揮するものであった。 The multilayer sliding member produced in this way is
Load (surface pressure) 49MPa (500kgf / cm2)
Sliding speed 0.5m / min
Swing angle ± 45 °
Counterpart material S45C induction hardening test cycle 30,000 cycles lubrication None (dry lubrication)
In the journal rocking test under the test conditions, the friction coefficient was 0.04 and the wear amount was 40 μm.

以上のように本発明の摺動面材は、合成繊維の糸とＰＴＦＥ繊維の糸との交撚糸から形成した多重織織布に、ＰＴＦＥ粉末を含有した熱硬化性合成樹脂を含浸してなるものであり、肉厚を厚くできるばかりでなく成形加工性に優れたものであり、この摺動面材を金属製の円筒体からなる裏金の円筒内面に一体に接合した複層摺動部材は、高荷重用途であって乾燥摩擦条件下での使用において優れた摩擦摩耗特性を発揮するものであり、該複層摺動部材の製造方法においては、金属製のパイプの熱膨張を利用することにより該摺動面材の裏金の円筒内面への接合一体化を容易に行うことができるものである。   As described above, the sliding face material of the present invention is obtained by impregnating a thermosetting synthetic resin containing PTFE powder into a multi-woven fabric formed from a woven yarn of a synthetic fiber yarn and a PTFE fiber yarn. In addition to being able to increase the wall thickness, it is excellent in molding processability, and a multilayer sliding member in which this sliding surface material is integrally joined to the inner surface of the back metal made of a metal cylindrical body is In addition, it exhibits excellent friction and wear characteristics when used under high-load applications under dry friction conditions. In the method of manufacturing the multilayer sliding member, the thermal expansion of a metal pipe should be used. Therefore, it is possible to easily join and integrate the sliding face material to the inner surface of the cylinder.

軸受の部品として利用できる。特に、小ロット生産に適している。さらに言えば、多品種小ロット生産にて軸受を製造するのに適している。   It can be used as a bearing component. Especially suitable for small lot production. Furthermore, it is suitable for manufacturing bearings in a variety of small lot production.

摺動面材（樹脂加工基材）の製造装置を示す説明図である。It is explanatory drawing which shows the manufacturing apparatus of a sliding face material (resin processing base material). 摺動面材を示す斜視図である。It is a perspective view which shows a sliding face material. 二重織織布の断面図である。It is sectional drawing of a double woven fabric. 三重織織布の断面図である。It is sectional drawing of a triple woven fabric. 金属製の円筒体からなる裏金の斜視図である。It is a perspective view of the back metal which consists of metal cylinders. 裏金の円筒内面の展開長さ及び裏金の高さに相当する寸法に切断した摺動面材を示す平面図である。It is a top view which shows the sliding face material cut | disconnected in the dimension corresponded to the expansion | deployment length of the cylindrical inner surface of a back metal, and the height of a back metal. 予備円筒摺動面材を示す斜視図である。It is a perspective view which shows a preliminary | backup cylindrical sliding surface material. 複層摺動部材の製造工程を示す斜視図である。It is a perspective view which shows the manufacturing process of a multilayer sliding member. 複層摺動部材を示す斜視図である。It is a perspective view which shows a multilayer sliding member.

符号の説明Explanation of symbols

１０ アンコイラ
１１ 補強部材
１２，１７ 送りローラ
１３ 熱硬化性合成樹脂ワニス
１４ 容器
１５，１６ 案内ローラ
１８，１９ 圧縮ロール
２０ 乾燥炉
２１ 摺動面材
２２ 複層摺動部材
２３ 円筒状裏金
２４ 円筒内面
２５，２９ 接着層
２６ 突合せ端部
２７ 予備円筒摺動面材
２８ 外周面
３０ 内面
３１ 金属製のパイプ DESCRIPTION OF SYMBOLS 10 Uncoiler 11 Reinforcement member 12, 17 Feed roller 13 Thermosetting synthetic resin varnish 14 Container 15, 16 Guide roller 18, 19 Compression roll 20 Drying furnace 21 Sliding surface material 22 Multi-layer sliding member 23 Cylindrical backing metal 24 Cylindrical inner surface 25, 29 Adhesive layer 26 Butt end 27 Preliminary cylindrical sliding face material 28 Outer peripheral surface 30 Inner surface 31 Metal pipe

Claims (8)

合成繊維の紡績糸と四ふっ化エチレン樹脂繊維のフィラメント糸又は紡績糸との交撚糸から形成された多重織織布と、該多重織織布に含浸された四ふっ化エチレン樹脂を含有した熱硬化性合成樹脂とからなる摺動面材。   A multi-woven fabric formed from a spun yarn of a synthetic fiber spun yarn and a filament yarn or spun yarn of a tetrafluoroethylene resin fiber, and a heat containing a tetrafluoroethylene resin impregnated in the multi-woven fabric A sliding surface material made of a curable synthetic resin. 請求項１に記載した摺動面材であって、該摺動面材は、多重織織布２５〜５０重量％と、四ふっ化エチレン樹脂２５〜３５重量％と、熱硬化性合成樹脂２５〜５０重量％とからなることを特徴とする摺動面材。   The sliding face material according to claim 1, wherein the sliding face material is 25 to 50% by weight of a multi-woven fabric, 25 to 35% by weight of a tetrafluoroethylene resin, and a thermosetting synthetic resin 25. A sliding surface material comprising -50% by weight. 請求項１又は２のいずれか一項に記載した摺動面材であって、前記合成繊維は、ポリエステル繊維、ポリビニルアルコール繊維及びアラミド繊維から選択された合成繊維であることを特徴とする摺動面材。   3. The sliding surface material according to claim 1, wherein the synthetic fiber is a synthetic fiber selected from a polyester fiber, a polyvinyl alcohol fiber and an aramid fiber. Face material. 請求項１，２又は３のいずれか一項に記載した摺動面材であって、前記多重織織布は、経二重織、緯二重織、経緯二重織及び三重織の各組織から選択された織布であることを特徴とする摺動面材。   4. The sliding face material according to claim 1, wherein the multiple woven fabric is a warp double weave, a weft double weave, a warp double weave, or a triple weave structure. A sliding surface material characterized by being a woven fabric selected from. 請求項１から請求項４までのいずれか一項に記載した摺動面材であって、前記熱硬化性合成樹脂は、レゾール型フェノール樹脂、エポキシ樹脂及び不飽和ポリエステル樹脂から選択された合成樹脂である請求項１から４のいずれか一項に記載の摺動面材。   It is a sliding face material as described in any one of Claim 1- Claim 4, Comprising: The said thermosetting synthetic resin is a synthetic resin selected from the resol type phenol resin, the epoxy resin, and the unsaturated polyester resin. The sliding face material according to any one of claims 1 to 4, wherein: 請求項１から請求項５までのいずれか一項に記載の摺動面材を用いてなる摺動部材であって、前記摺動面材を、金属製の円筒体からなる円筒状裏金の円筒内面に一体に接合し、該摺動面材を摺動層としたことを特徴とする摺動部材。   A sliding member comprising the sliding face material according to any one of claims 1 to 5, wherein the sliding face material is a cylindrical back metal cylinder made of a metal cylinder. A sliding member characterized by being integrally joined to an inner surface and using the sliding surface material as a sliding layer. 請求項６に記載の摺動部材であって、前記円筒状裏金は、鋼管からなることを特徴とする摺動部材。   It is a sliding member of Claim 6, Comprising: The said cylindrical back metal consists of steel pipes, The sliding member characterized by the above-mentioned. 請求項６又は７のいずれか一項に記載の摺動部材であって、前記摺動層の肉厚が少なくとも１ｍｍである摺動部材。   The sliding member according to any one of claims 6 and 7, wherein the sliding layer has a thickness of at least 1 mm.
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EP2484713A4 (en) * 2009-09-30 2013-03-13 Oiles Industry Co Ltd Sliding surface material and multilayer sliding member equipped with said sliding surface material
US10267362B2 (en) 2009-09-30 2019-04-23 Oiles Corporation Sliding contact surface-forming material, and multi-layered sliding contact component having the same
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EP2484712A1 (en) * 2009-09-30 2012-08-08 Oiles Corporation Sliding surface material and multilayer sliding member provided with same
EP2484713A1 (en) * 2009-09-30 2012-08-08 Oiles Corporation Sliding surface material and multilayer sliding member equipped with said sliding surface material
JP2011075057A (en) * 2009-09-30 2011-04-14 Oiles Corp Sliding surface material and multilayer sliding member including the sliding surface material
US10767697B2 (en) 2009-09-30 2020-09-08 Oiles Corporation Sliding contact surface-forming material, slide bearing containing same, and method of using same in a moist environment
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EP3189124A4 (en) * 2014-09-05 2018-05-02 GGB, Inc. Composite bearing with enhanced wear and machinability
US10920166B2 (en) 2014-09-05 2021-02-16 Ggb, Inc. Composite bearing with enhanced wear and machinability
CN107628218A (en) * 2017-09-08 2018-01-26 中国船舶重工集团公司第七〇九研究所 A kind of stern bearing cast damping unit and preparation method
CN107628218B (en) * 2017-09-08 2020-03-20 中国船舶重工集团公司第七一九研究所 Pouring damping device for stern bearing and preparation method

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