CN1044914C - 普通轴承材料 - Google Patents

普通轴承材料 Download PDF

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Publication number
CN1044914C
CN1044914C CN94191137A CN94191137A CN1044914C CN 1044914 C CN1044914 C CN 1044914C CN 94191137 A CN94191137 A CN 94191137A CN 94191137 A CN94191137 A CN 94191137A CN 1044914 C CN1044914 C CN 1044914C
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CN
China
Prior art keywords
plain bearing
tetrafluoroethylene
polyphenylene sulfide
particle
bearing material
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Expired - Fee Related
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CN94191137A
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CN1117740A (zh
Inventor
G·J·戴维斯
P·茂瑟
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Gib Holdings
GGB Inc
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T&N Technology Ltd
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Publication of CN1117740A publication Critical patent/CN1117740A/zh
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Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
    • C08L81/02—Polythioethers; Polythioether-ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/04—Polymer mixtures characterised by other features containing interpenetrating networks
    • 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
    • F16C2208/52—Polyphenylene sulphide [PPS]

Abstract

本发明公开了由聚四氟乙烯和聚亚苯基硫醚的互穿网络形成的普通轴承材料。该材料含有至少40%体积的聚亚苯基硫醚和余量的聚四氟乙烯。

Description

普通轴承材料
本发明涉及普通轴承材料及其制备方法。
Glacier Metal Company开发了一种非常成功的普通轴承材料。该材料被称作“DU”，主要由具有约20％体积铅填料的聚四氟乙烯组成。该材料形成具有耐磨损表面的表面层，并渗入如黄铜的烧结金属层中，金属层被牢固粘结于钢质背衬上。表面层的聚四氟乙烯赋予其低摩擦力，而铅是材料的干耐磨损性所必需的。DU可用于普通轴衬和止推环中。
希望开发一种性能与DU相当或超过DU的无铅普通轴承材料。已进行了许多努力，但均告失败。这些尝试集中在使用约与铅的比例相同的不同填料来提高强度。认为不能显著降低聚四氟乙烯的比例，因为认为这样会降低其低摩擦力性能，从而降低耐磨损性。此外，向聚四氟乙烯中加入更多的填料是困难的，因为向聚四氟乙烯中混入填料会使其纤丝化，从而使其不能处理，不能使其成功地渗入烧结金属材料中。实际上，涂敷DU时必须小心操作，以防止其纤丝化。
本发明目的是提供具有改进的耐磨损性的无铅普通轴承材料。
本发明提供一种由两种互穿网络形成的普通轴承材料，一种是聚四氟乙烯(PTFE)，另一种是聚亚苯基硫醚(PPS)。
与DU相比，本发明轴承材料大大改进了耐磨损性。与现有的所有无铅DU取代物相比，本发明材料的试验耐磨损性要高出10倍，实际上可达到DU本身的5倍。PPS已被公开可用作普通轴承材料(参见GB No.1,475,295)，其中掺入少量PTFE，以改进低摩擦性。该材料基本上是含有PTFE颗粒的PPS基质，而本发明材料是PPS和PTFE的互穿网络结构。向PTFE中混入至多约20％体积的PPS得到的轴承材料也是已知的。该材料是含有PPS颗粒的PTFE基质。这些材料的耐磨损性达不到本发明材料的。
在本发明材料中，优选PPS的体积百分数为45％-55％，约为50％时达到优异的试验耐磨损性。该材料可以被渗入粘结于背衬板上的烧结金属层中。
本发明材料可按如下所述制备：将PTFE颗粒包封于树脂、如丙烯酸酯树脂中，将该包封颗粒与PPS颗粒混合，加热和加压使材料交联，并使其形成光滑轴承表面。
将PTFE颗粒包封可防止其在混合和涂敷过程中纤丝化，而丙烯酸酯树脂可随后烧掉，不会留下残余物。
为便于混合，在与包封的PTFE混合之前，也可将PPS颗粒包封于树脂、如丙烯酸酯树脂中。
以水分散体的形式更便于将这些颗粒混合。
此外，本发明材料也可按如下所述制备：将PTFE和PPS熔融共混，将共混材料挤出到载体上，例如以条带形式挤出到烧结金属层上，并将挤出材料粘结在载体上，例如通过加热和加压使该材料渗入该金属层中。
下面是一更详细的实施例，用于详细说明本发明。
在该说明性实施例中，用PTFE和PPS的互穿网络结构形成普通轴承材料，它们各占50％体积。
首先，配制包封于丙烯酸酯树脂中的PPS颗粒的水分散体，这在高剪切混合机中将PPS颗粒、水、聚甲基丙烯酸甲酯和常规添加剂(如表面活性剂)混合而制备。
随后，配制包封于丙烯酸酯树脂中的PTFE颗粒的水分散体，这在高剪切混合机中将PTFE颗粒、水、聚甲基丙烯酸甲酯、煤油(作为润滑剂)和常规添加剂(如表面活性剂)混合而制备。
然后，将上述两种水分散体在高剪切混合机中混合，得到含有约为等体积量的包封PPS和PTFE颗粒的水分散体。向其中加入凝聚剂(硫化铝)，并倾析出水。这样得到的湿“泥”被涂到钢质背衬层上的烧结金属层上。将泥压平并使其渗入烧结金属层的间隙。然后，将得到的轴承材料条带加热至干，并烧去丙烯酸酯树脂，在375℃固化。得到具有光滑表面的轴承材料，它含有形成互穿网络结构的交联的等量PPS和PTFE。
用该轴承材料进行耐磨损试验，在试验中测定磨损至预定深度所需的时间(小时)。前述DU材料为680小时，而本发明实施例的材料超过4000小时。

Claims (6)

1．一种普通轴承材料，它含有45％-55％体积的聚亚苯基硫醚和余量的聚四氟乙烯，该轴承材料由聚四氟乙烯和聚亚苯基硫醚的互穿网络形成。
2．根据权利要求1的普通轴承材料，其特征在于，该材料被渗入保持在背衬板上的烧结金属层中。
3．制备权利要求1或2的普通轴承材料的方法，该方法包括：将聚四氟乙烯颗粒包封于树脂中，将包封的颗粒与聚亚苯基硫醚颗粒和润滑剂混合，将该混合物涂敷到载体上，加热以烧去树脂，加热和加压使材料交联并使其形成光滑轴承面。
4．根据权利要求3的方法，其特征在于，在与包封的聚四氟乙烯混合之前，聚亚苯基硫醚颗粒也被包封于树脂中。
5．根据权利要求3或4的方法，其特征在于，所述颗粒以水分散体的形式混合。
6．制备权利要求1或2的普通轴承材料的方法，该方法包括：将聚四氟乙烯和聚亚苯基硫醚熔融共混，将共混材料挤出，并将挤出的材料粘结到载体上。
CN94191137A 1993-02-09 1994-01-24 普通轴承材料 Expired - Fee Related CN1044914C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9302533A GB2274844B (en) 1993-02-09 1993-02-09 Plain bearing material
GB9302533.6 1993-02-09

Publications (2)

Publication Number Publication Date
CN1117740A CN1117740A (zh) 1996-02-28
CN1044914C true CN1044914C (zh) 1999-09-01

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CN94191137A Expired - Fee Related CN1044914C (zh) 1993-02-09 1994-01-24 普通轴承材料

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US (1) US5665825A (zh)
EP (1) EP0683807B1 (zh)
JP (1) JP3232097B2 (zh)
CN (1) CN1044914C (zh)
AU (1) AU5842194A (zh)
BR (1) BR9406184A (zh)
DE (1) DE69405977T2 (zh)
ES (1) ES2107178T3 (zh)
GB (1) GB2274844B (zh)
WO (1) WO1994018271A1 (zh)

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DE19524968A1 (de) * 1995-07-08 1997-01-16 Glyco Metall Werke Gleitlagerwerkstoff und dessen Verwendung
GB2319067B (en) 1996-11-06 2000-06-28 T & N Technology Ltd Forming a bearing
EP0852298B1 (de) * 1996-12-14 2003-03-19 Federal-Mogul Deva GmbH Gleitlagerwerkstoff und Verfahren zu seiner Herstellung
JP3193691B2 (ja) * 1998-09-29 2001-07-30 大同メタル工業株式会社 軸受構造
CN1756911A (zh) 2003-03-03 2006-04-05 格莱西尔加洛克轴承公司 可钻孔的滑动轴承材料
US20060029795A1 (en) * 2004-08-09 2006-02-09 University Of Florida Research Foundation, Inc. Multi-layer low friction and low wear polymer/polymer composites having compositionally graded interfaces
WO2007123861A2 (en) * 2006-04-18 2007-11-01 University Of Florida Prosthetic device
IT1392791B1 (it) * 2008-07-17 2012-03-23 Bosch Gmbh Robert Pompa di alta pressione per alimentare combustibile ad un motore a combustione interna
BRPI0921601B1 (pt) 2008-11-07 2019-06-04 Saint-Gobain Performance Plastics Corporation Vedante termoplástico de grande diâmetro
RU2481372C2 (ru) * 2008-11-07 2013-05-10 Сэнт-Гобэн Перформанс Пластикс Корпорейшн Способ формования уплотнительного кольца (варианты)
DE102009016915A1 (de) 2009-04-08 2010-10-14 Robert Bosch Gmbh Lagerhülse, Zahnradmaschine und Verfahren zum Herstellen einer Lagerhülse
EP2852488B1 (en) 2012-05-23 2020-11-25 Saint-Gobain Performance Plastics Corporation Methods of forming large diameter thermoplastic seal and seal ring
US10393263B2 (en) * 2016-09-16 2019-08-27 Don Simpson Rebuild kit for a CVT clutch spider
US10442950B2 (en) * 2017-05-18 2019-10-15 Canon Kabushiki Kaisha Film formed on a sliding surface of a component

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172622A (en) * 1973-06-13 1979-10-30 The Glacier Metal Company, Limited Plain bearings
FR2233523A1 (en) * 1973-06-13 1975-01-10 Glacier Metal Co Ltd Bearings with polyphenylene sulphide coatings - giving improved heat and corrosion resistance at reduced cost
GB2121722B (en) * 1982-06-08 1985-12-18 Glacier Metal Co Ltd Polyphenylene sulphide coatings
FR2535332B1 (fr) * 1982-11-03 1986-09-26 Electricite De France Alliage de polymeres, sa preparation et son application a la fabrication d'elements de reacteurs electrochimiques
JPS59201992A (ja) * 1983-04-28 1984-11-15 Daikin Ind Ltd ロ−タリ−圧縮機
JPS61266451A (ja) * 1985-05-21 1986-11-26 Daido Metal Kogyo Kk 摺動部材用組成物
JPS63162727A (ja) * 1986-12-25 1988-07-06 Toray Ind Inc 摺動材料
JP2850353B2 (ja) * 1989-03-17 1999-01-27 日本精工株式会社 ころがり軸受
JP2943187B2 (ja) * 1989-11-30 1999-08-30 ダイキン工業株式会社 ポリフェニレンスルフィド樹脂組成物及びその製法
JP3052338B2 (ja) * 1990-06-08 2000-06-12 ダイキン工業株式会社 摺動材組成物およびその製造方法
JPH04149271A (ja) * 1990-10-12 1992-05-22 Iseki & Co Ltd 複合材料
GB9219140D0 (en) * 1992-09-10 1992-10-28 Ici Plc Composition of fluoropolymer

Also Published As

Publication number Publication date
WO1994018271A1 (en) 1994-08-18
DE69405977D1 (de) 1997-11-06
ES2107178T3 (es) 1997-11-16
GB2274844B (en) 1996-01-03
GB2274844A (en) 1994-08-10
EP0683807A1 (en) 1995-11-29
JP3232097B2 (ja) 2001-11-26
BR9406184A (pt) 1996-02-06
AU5842194A (en) 1994-08-29
CN1117740A (zh) 1996-02-28
US5665825A (en) 1997-09-09
JPH08506372A (ja) 1996-07-09
EP0683807B1 (en) 1997-10-01
DE69405977T2 (de) 1998-04-02
GB9302533D0 (en) 1993-03-24

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