• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention is directed to a composition for a friction material, eg a brake pad, of the type which consists of a fibrous reinforcement, a binder, and various additives. …<??>The friction material contains no asbestos but has properties comparable with asbestos-based materials. The composition contains a thermoset binder which includes a phenol formaldehyde resin, although it may also contain a heat and chemical resistant rubber. The binder makes up 20 to 45 per cent by volume of the material. …<??>As sole fibrous reinforcement 5 to 15% by volume of steel fibre is used, and the material also contains at least 10% by volume of an inert mineral filler eg barytes, whiting, silica.
    公开号:SU890983A3
    申请号:SU782649255
    申请日:1978-08-10
    公开日:1981-12-15
    发明作者:Честер Джон
    申请人:Феродо Лимитед (Фирма)；
    IPC主号:
    专利说明:

    Example 1. Dis disc brake pads are manufactured using the formulation, OBD: Nitrile (nitrile rubber) rubber 12,07
    Sulfur3,18
    Phenol formaldehyde resin29,82
    Steel fiber 10.00 Gas soot5.71
    Silica 6,
    Barite12,2
    -Grafit8.97
    Antimony sulfide 2.53 Molybdenum sulfide 1.90 Copper (powdered) 5.7 Tin (powdered) 1.26 The ingredients are mixed, and the nitrile rubber is injected as a blemish, the dry mixture is crushed and pressed into a mold, getting disc gaskets for brakes . After pressing, the product is heated in a vulcanizer to vulcanize the binder.
    The manufactured disc brake pads are subjected to appropriate tests, and it has been found that their friction properties are comparable with the properties of materials containing asbestos base (asbestos fiber), but much cheaper.
    Example 2. (Illustrates the use of a composition with a high content of steel fiber).
    Make disc brake pads using the formulation, about. %:
    Nitrile rubber 12,07 Sulfur3,1B
    Phenol formaldehyde resin. 29.82 Steel fiber 17.00 Zircon 1.00
    Barite20.96
    Graphite8.97
    Antimony Sulfide 2.00 Sulfide
    molybdenum1.0.0
    Copper (powdered), 50 Tin (powdered) 1.50 For the preparation of gaskets, use the same method as in example 1, but the nitrile rubber in this
    The example is introduced as a 16% (by weight) solution in trichlorethylene.
    When tested on a dynamometer for gaskets, friction coefficient values were obtained from 0.32 (in cold condition) to 0 (in hot condition), and the spacing is less than in the case of most commonly used asbestos-based friction materials under similar loads. The total shear resistance of the two gaskets was also measured, its value being in the range of 80110 kgf / cm.
    5 Example 3- (Illustrates the use of a composition with a lower binder content and a higher content of inert filler (barite). 0 Manufacturing disc brake pads analogously to example 2 using a formulation, OBD: Nitrile-Rubber8.0
    Sulfur3,18
    5. Phenol formaldehyde resin 19,88
    Steel fiber 10.00 Gas soot 13.97
    Zircon 1.00
    Sillimanite 2.50
    Barite25.96
    Graphite8.97
    Antimony Sulfide 2.00 Copper (powdered). 50 35
    The wear of the gaskets thus obtained does not differ from the wear of the gaskets of Example 2, the values of the coefficient of friction range from 0.27 (in the cold state) to 0.8 (in the heated state). The total shear resistance is in the range of 120-150 kgf / cm -.
    Example k. (Illustrates 5 using a low binder content with the same barite content).
    I. Disc brake pads are prepared as described in Example 2 50 using a formulation, n: Nitrile-rubber 6.03
    Sulfur3,18
    Phenol Formal Resin 1.91
    55 Steel fiber 10,00
    Zircon 1.00
    Sillimanite 2.50
    Barite25.96
    Graphite8.97
    Lead sulfide 6.99 Coke (powdered) 13.96 Antimony sulfide 2.00 Copper (powdered), 50 The wear of the gaskets obtained in this way is slightly higher than in examples 2 and 3, and the coefficient of friction ranges from 0.3 ( cold state) to 0, (in a heated state). Total shear resistance ranges from 7280 kgf / cm
    So, the rubber from the proposed composition in comparison with the known is characterized by wear and friction at or above, and at a cost much lower due to the replacement of asbestos fiber with steel.
    权利要求:
    Claims (1)
    [1]
    1. US patent No. 395919t, kl.260-172, published. 1976.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU890983A3|1981-12-15|Composition for producing friction material
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    US4384054A|1983-05-17|Asbestos-free friction material
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    KR920000054B1|1992-01-06|Brake-friction material
    US3832325A|1974-08-27|Wear resistant composition brake block
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    JP2858968B2|1999-02-17|Non-asbestos friction material
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    CN101967366A|2011-02-09|Resin-based friction material
    JP2601652B2|1997-04-16|Friction material for brake
    同族专利:
    公开号 | 公开日
    CS216921B2|1982-12-31|
    AU3875678A|1980-02-14|
    IT1157152B|1987-02-11|
    US4226759A|1980-10-07|
    DD138220A5|1979-10-17|
    BR7805106A|1979-04-24|
    JPS5434351A|1979-03-13|
    IT7850667D0|1978-08-09|
    EP0000841A1|1979-02-21|
    DE2860882D1|1981-10-29|
    ZA784380B|1979-07-25|
    GB1604828A|1981-12-16|
    EP0000841B1|1981-07-29|
    IN148771B|1981-06-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    MD20060243A|2006-10-04|2008-06-30|Владимир КЛЕЙМЕНОВ|Composition of friction material|
    MD86Y|2006-10-04|2009-09-30|Владимир КЛЕЙМЕНОВ|Composition of friction material|US3007890A|1959-05-07|1961-11-07|Chrysler Corp|Friction elements and method of making the same|
    FR1575746A|1968-04-26|1969-07-25|
    DE1780271A1|1968-08-23|1971-12-30|Jurid Werke Gmbh|Brake pad for vehicle disc brakes|
    US4051097A|1972-01-31|1977-09-27|The Bendix Corporation|Carbon metallic friction composition|
    US3835118B1|1973-05-14|1987-03-10|
    US4119591A|1977-07-05|1978-10-10|The Bendix Corporation|Friction material reinforced with steel and cellulose fibers|US4178278A|1978-03-01|1979-12-11|Johns-Manville Corporation|Friction material for railroad service|
    FR2429066B1|1978-06-20|1981-05-29|Roulements Soc Nouvelle|
    JPS6317872B2|1979-04-26|1988-04-15|Kureha Chemical Ind Co Ltd|
    AU6662381A|1980-02-28|1981-09-03|Goodyear Aerospace Corp.|Elimination of asbestos in organic-type brake linings|
    US4373037A|1981-05-29|1983-02-08|Engelhard Corporation|Asbestos-free friction material incorporating attapulgite clay|
    JPS60139932A|1983-12-28|1985-07-24|Komatsu Ltd|Wet frictional member|
    GB8405645D0|1984-03-03|1984-04-04|Ferodo Ltd|Friction materials|
    US4775705A|1984-10-20|1988-10-04|T&N Plc|Friction materials and their manufacture|
    US4722950A|1986-07-07|1988-02-02|Allied Corporation|Friction material|
    US5248301A|1987-12-03|1993-09-28|Medfusion, Inc.|Transcutaneous infusion apparatus and methods of manufacture and use|
    GB9020070D0|1990-09-14|1990-10-24|Ferodo Ltd|Improvements in or relating to brake pads|
    US5122550A|1990-11-21|1992-06-16|Hoechst Celanese Corporation|Cellulose ester fibrils: a molding aid for friction materials|
    DE4039636A1|1990-12-12|1992-06-17|Beiersdorf Ag|HOT-STIFF ADHESIVE|
    GB2268502B|1992-07-03|1995-11-01|Ferodo Ltd|Improved friction materials|
    JP3421364B2|1992-07-14|2003-06-30|曙ブレーキ工業株式会社|Friction material|
    DE4224759C2|1992-07-27|2002-04-18|Ina Schaeffler Kg|Tensioning system, friction damped for belt or chain drives|
    JPH06346932A|1993-06-08|1994-12-20|Akebono Brake Ind Co Ltd|Frictional material|
    US5413194A|1994-07-25|1995-05-09|Pneumo Abex Corporation|Brake friction pad assembly|
    DE29724077U1|1997-06-28|1999-11-11|Daimler Chrysler Ag|Brake unit|
    US6161659A|1998-09-29|2000-12-19|Inertia Dynamics, Inc.|Electromagnetic disk brake with rubber friction disk braking surface|
    JP2002226834A|2001-01-30|2002-08-14|Nisshinbo Ind Inc|Nonasbestos friction material|
    JP2003113253A|2001-07-30|2003-04-18|Nisshinbo Ind Inc|Non-asbestos-based friction material|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB33485/77A|GB1604828A|1977-08-10|1977-08-10|Friction materials|
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