• 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 relates to a binder-free, sintered friction lining (8) for a friction component of a friction assembly, with a friction lining body which comprises a metallic matrix, at least one abrasive, solid lubricants, and optionally at least one filler, the solid lubricants being formed by at least two different solid lubricants, which are selected from a group consisting of hexagonal boron nitride and metal sulfides with at least one metal from the group consisting of tungsten, iron, tin, copper, bismuth, antimony, chromium, zinc, silver, manganese, molybdenum.
    公开号:AT522255A1
    申请号:T50220/2019
    申请日:2019-03-13
    公开日:2020-09-15
    发明作者:
    申请人:Miba Frictec Gmbh；
    IPC主号:
    专利说明:

    lubricants, and optionally at least one filler.
    The invention also relates to a friction component with a carrier on which a friction
    lag is arranged.
    The invention also relates to a friction assembly, in particular a clutch or
    Brake, with at least one friction component
    Resin-bonded friction linings are used in conventional, dry-running drive systems for motor vehicles. For example, DE 29 24 540 A describes a product for the production of components with a metallic composition, which is formed by at least one fine steel fiber powder. This fibrous powder is used for a friction lining for brakes in a proportion of 30 to 85% by weight. The friction lining contains between 10 and 20% polymerisable
    res phenolic binder.
    These materials are characterized by a low tendency to frictional vibrations (e.g. clutch picking), but mainly due to the matrix raw materials used, i.e. the resin, can only be used at very low temperature and energy
    loads are used.
    Modern drivetrains should be able to transmit higher powers with ever lower weight, while driving comfort and fuel efficiency should be increased at the same time. By requiring the vehicle weight as possible
    To keep them small, the size of the couplings is also severely limited. This
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    Energy and temperature loads on the friction material result.
    The metallic friction linings known today, however, are all very high
    Resilient in terms of energy and heat, have high coefficients of friction and low abrasion, but also have a strong tendency to frictional vibrations that can affect the entire drive train and thus have a very negative effect on the driving comfort of the vehicle
    impact.
    The prior art also describes friction components in which the friction lining is formed by sintered materials. For example, DE 44 43 666 A describes a component with friction surfaces for friction synchronization in motor vehicle manual transmissions. The friction surface material of the component described in this DE-A is a largely pore-free sintered bronze on the surface with metallic and non-metallic additives in the form of up to 6% by weight of zinc, up to 6% by weight, which increase friction behavior, wear resistance and shift comfort % Nickel, up to 3% by weight molybdenum, 1 to 6% by weight SiO2 and / or Al2O3s, optionally 0.2 to 6% by weight graphite and / or molybdenum disulfide, the rest being bronze with a defined particle size in the starting powder. This sintered bronze is for oil
    Lubricated parts intended for friction synchronization in motor vehicle gearboxes.
    DE 32 32 865 A describes a method for producing a friction element for a motor vehicle or motorcycle disc brake. Powders made from copper, tin, lead and graphite, silicon oxide, aluminum oxide and molybdenum disulfide are used as the material for the friction lining. It can be used to produce differently porous friction linings, the final density of which is in the range between 72.6% and 90.5%.
    EP 2 012 038 A2 describes a binder-free, sintered dry-running
    friction lining with a friction lining body which has a metallic matrix, at least one
    NEN abrasive and comprises at least one filler, wherein the friction lining body has a porosity that is greater than 10% and wherein the proportion of the to-
    at least one abrasive substance on the friction lining body is a maximum of 5% by weight. In the
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    research from it.
    The object of the invention is to provide a friction lining or a friction element with low frictional vibrations, which has a relatively high temperature
    Turbo load can be exposed.
    This object is achieved in the aforementioned friction lining in that the solid lubricants are formed by at least two different solid lubricants which are selected from a group consisting of hexagonal boron nitride and metal sulfides with at least one metal from the group tungsten, iron,
    Tin, copper, bismuth, antimony, chromium, zinc, silver, manganese, molybdenum.
    The object of the invention is further achieved with the friction component mentioned at the beginning
    solved, which has the friction lining according to the invention.
    The object of the invention is also achieved by the friction assembly, which
    has at least one friction component according to the invention.
    Surprisingly, it was found that the friction lining shows a clearer improvement in the friction behavior than would be expected on the basis of the disclosure of EP 2 012 038 A2, in which solid lubricants in a friction lining have already been described. The improvement primarily relates to the reduction of vibrations during the frictional engagement of the friction lining with a counter-friction surface, which can then be used to stabilize the course of friction and thus reduce the premature wear of the friction lining. It is assumed that this improvement is based on the use of at least two different solid lubricants from the list mentioned in claim 1. Each of these solid lubricants has correspondingly good properties in each specific operating range. The friction lining can thus be better adapted to a comprehensive load spectrum. The friction
    The coating is therefore better suited for dry running, i.e. for operating conditions
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    can be.
    According to a variant embodiment of the friction lining, it can be provided that the solid lubricants are formed by at least two metal sulfides which contain the same metal. It is therefore possible to use mixed sulfides in which the metal is present in at least two different oxidation states. This made it possible to further improve the temperature behavior of the friction lining. It can also be used to improve the material compatibility of the individual ingredients of the composition of the friction lining by using, for example, tin sulfides as solid lubricants, if the friction lining also
    Contains tin or intermetallic tin compounds.
    To further improve the long-term temperature resistance, it can be provided according to another variant of the friction lining that the fixed
    lubricant composition additionally contains graphite.
    In the course of tests carried out, it was found that it is advantageous if the total proportion of solid lubricants in the friction lining body is selected from a range from 5% by weight to 30% by weight, since proportions of solid lubricants in this range the aforementioned effects
    are particularly pronounced.
    On the basis of the tests already mentioned, it was further found that it is advantageous if the friction lining corresponds to at least one of the following
    the following design variants:
    - the friction lining body contains tin sulphides as solid lubricants, the total proportion of tin sulphides on the friction lining body being between 2% by weight
    and is 7 wt%; and or
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    and is 5% by weight; and or
    the friction lining body contains hexagonal boron nitride as a solid lubricant, with the total proportion of hexagonal boron nitride on the friction lining body
    is between 1 wt% and 6 wt%; and or
    the friction lining contains graphite and hexagonal boron nitride as solid lubricants, with a ratio of graphite to hexagonal boron nitride
    is selected from the range of 3 to 6; and or
    the solid lubricants are partly of natural origin and partly synthetically produced, a ratio of natural solid lubricant to synthetic solid lubricant being selected from a range
    from 1.5 to 5; and or
    the proportion of synthetically produced solid lubricant in the friction lining
    per is between 0.5 wt% and 5 wt%; and or
    the friction lining body contains SnS and SnSz as solid lubricants, the proportion of SnS on the friction lining body between 2% by weight and 6% by weight and the proportion of SnS $ 2 in the friction lining body between 1% and 5% by weight
    Is% by weight; and or
    The friction lining body contains SnS, SnS2, Sn2zS3s and hexagonal boron nitride as solid lubricants, the proportion of SnS on the friction lining body between 0.5% and 1.5% by weight, the proportion of SnS2 on the friction lining body between 1% by weight and 3% by weight, the proportion of Sn2S3 on the friction lining body between 0.5% by weight and 3% by weight and the proportion of hexagonal boron nitride on the friction lining body between 3.5% by weight and 7.5% by weight % loading
    wearing; and / or the friction lining body contains SnS and FeS as solid lubricants, wherein
    the proportion of SnS in the friction lining body between 6% by weight and 10% by weight
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    Is% by weight; and or
    - The friction lining body contains SnS, FeS and a synthetic solid lubricant based on zinc sulfide with tungsten sulfide and with graphite as solid lubricants, the proportion of SnS on the friction lining body between 1% by weight and 5% by weight, the proportion of FeS on the friction lining body between 2 wt .-% and 6 wt .-% and the proportion of the synthetic solid lubricant
    substance is between 0.5 wt .-% and 1 wt .-%, and / or
    - The friction lining body contains SnS, FeS, hexagonal boron nitride and a synthetic solid lubricant based on zinc sulfide with tungsten sulfide and with graphite as solid lubricants, the proportion of SnS in the friction lining body between 2% by weight and 6% by weight, the proportion of FeS on the friction lining body between 1 wt .-% and 3.5 wt .-%, the proportion of hexagonal boron nitride on the friction lining body between 0.5 wt .-% and 4 wt .-% and the proportion of the synthetic solid lubricant between 0.5 wt .% and 3% by weight; and or
    - The friction lining body contains SnS, hexagonal boron nitride, graphite and a synthetic solid lubricant based on zinc sulfide with tungsten sulfide and with graphite as solid lubricants, the proportion of SnS in the friction lining body between 4% by weight and 8% by weight, the proportion of hexagonal Boron nitride on the friction lining body between 2% by weight and 6% by weight, the proportion of graphite on the friction lining body between 10% and 17% by weight and the proportion of the synthetic solid lubricant between 0.5% and 3% by weight Wt .-%.
    For a better understanding of the invention, it will be based on the following
    Figures explained in more detail. They each show in a simplified, schematic representation:
    1 shows a detail from a disk pack of a friction assembly;
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    the state of the art;
    FIG. 5 shows the accuracy of the coefficient of friction in a friction lining according to the invention.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference symbols or the same component designations, whereby the disclosures contained in the entire description can be transferred accordingly to the same parts with the same reference symbols or the same component names. The location details chosen in the description, such as above, below, to the side, etc., refer to the figure immediately described and shown and these position
    in the event of a change in position, information must be transferred to the new position accordingly.
    All standards mentioned in this description relate to the version that was last valid at the time of registration, if not
    something else is stated.
    In Fig. 1, a section of a disk pack 1 of a friction assembly is shown, not shown. The disk pack 1 has at least one facing disk 2, in particular several facing disks 2, and at least one counter-disk 3, in particular several counter-disk 3, which can also be referred to as friction disks. The facing disks 2 are arranged one behind the other in an axial direction 4, alternating with the counter disks 3. The facing disks 2 can be adjusted relative to the mating disks 3 in the axial direction 4 via a corresponding actuation mechanism, so that between the facing disks
    mellen 2 and the counter-disks 3 a frictional connection is formed.
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    the counter-blades 3 form the outer blades.
    The facing lamella 2 can be seen better from FIG. 2 and the counter lamella 3 from FIG. 3. Since all of the facing disks 2 and / or all of the opposing disks 3 of a disk set 1 or a friction assembly are preferably of the same design, only one facing disk 2 and one opposing disk 3 will be discussed below. These designs can accordingly be applied to facing disks 2 or counter disks 3. The number of facing lamellae 2 and counter lamellae 3 can generally be selected, for example, from a range from 1, in particular 2, to 20. The configuration shown specifically in FIG.
    number of lining and counter-disks 2, 3 is therefore not to be understood as limiting.
    The facing lamella 2 has an at least approximately ring-shaped carrier lamella 5 with a first surface 6 and a second surface 7 opposite this in the axial direction 4. On the first and / or the second surface
    6, 7, at least one friction lining 8 is arranged in each case.
    The counter lamella 3 has an at least approximately annular lamella body
    per 9, which, however, is free of friction linings.
    The facing disks 2 have at least one driver element 10, for example in the form of an external toothing, on a radially outer end face. The counter-lamellae 3 also have at least one driver element 11 on a radially inner end face. A non-rotatable connection to another component of the friction assembly, for example a shaft in the case of the counter-disks 2 or the housing of the friction assembly in the case of the facing disks 3, can be established via the driver elements 10, 11, as is known per se. It should be pointed out once again that the slats are reversed
    forms can be, so the lining plates 2, the driver elements 11 and the
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    assembly can be made.
    This basic structure of a disk pack 1 is known from the prior art. For further details, please refer to this relevant status
    referred to the technology.
    The disk pack 1 is preferably part of a dry-running disk friction system, in particular a dry-running disk clutch, a brake, a holding brake, a differential lock, etc. Preferably, the disk pack 1 is used in a friction assembly of an AWD drive (All Wheel Drive) or a FWD drive ( Front Wheel Drive) used. It should be noted, however, that the friction lining 8 can also be used in other friction assemblies that do not have friction disks. The friction lining 8 can also be arranged on a carrier in these applications and together with
    this form a friction component.
    The friction lining 8 is preferably a mass-pressed dry running friction lining. For this purpose, a mixture can be produced from the components of the friction lining 8, which is then pressed into a press, optionally in a
    in a hot press at an elevated temperature (e.g. at a temperature between 100 ° C and 190 ° C).
    According to one embodiment variant, it can be provided that the friction lining 8 is a press-sintered friction lining. The press sintered friction lining can be a sintered metal lining
    be.
    The friction lining 8 can be sintered by means of a belt sintering process or by means of pressure sintering
    or by a DHP (direct hot pressing) process. The friction lining 8 can have a layer thickness between 0.5 mm and 5 mm. As already stated, the friction lining 8 is preferably attached to the carrier plate 5.
    orderly. The carrier lamella 5 is preferably made of a steel. But there are
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    other iron-based alloys can also be used. Copper-based alloys, such as e.g. Brass or bronze, or other metallic le-
    alloys can be used. The carrier lamella 5 can have a thickness between 0.4 mm and 5.5 mm.
    The friction lining 8 can be arranged directly on the carrier plate 5, for example it can be pressed and sintered onto it. However, there is also the possibility that the friction lining 8 is connected to the disk carrier 5 via a connecting layer which is arranged between the disk carrier 5 and the friction lining 8. The connecting layer may, for example, be a solder layer, e.g. a hard solder based on a CuSn or CuZn alloy, or an adhesive layer, e.g. made of organic and inorganic high-temperature adhesive,
    be.
    The carrier lamella 5 can be on only one of the surfaces 6, 7 or on both upper
    surfaces 6, 7 (as shown in FIG. 1) have at least one friction lining 8.
    It is also possible for the friction lining 8 to be designed as a closed, one-piece ring, that is to say extend uninterruptedly over 360 °. According to another embodiment variant, however, it can also be provided that the friction lining 8 is segmented, as shown in FIG. 2. A friction lining 8 with six segments 12 is shown here. However, this number is not to be understood as limiting. In particular, the friction lining 8 can have between two and thirty segments 8. A friction component can, however, also have only one segment 8 of this type, which is not designed as a closed ring. Likewise, other forms
    the friction lining, e.g. cylindrical, cuboid, etc., possible.
    The segments 8 are arranged at a distance from one another in the circumferential direction of the friction plate 8. A distance 13 between 0 mm and 20 mm, especially
    especially between 1 mm and 15 mm.
    Corners and / or edges of the segments 12 or the friction linings 8 can be chamfered or rounded. The radius of curvature can be between 0.5 mm and 6 mm, in particular between 1 mm and 4.5 mm.
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    A radial width 14 of the friction lining 8 or of the segments 12 can be selected
    be from a range of 5mm to 40mm.
    The grooves between the segments 12 resulting from the spacing of the segments 12 can have a rectangular, square, trapezoidal,
    round, etc. have cross-section.
    The counter lamella 3 is preferably made of steel. However, other iron-based alloys can also be used. Copper-based alloys, such as e.g. Brass or bronze, or other metallic alloys
    settable. The counter-lamella 3 can have a thickness between 0.5 mm and 6 mm.
    The outer diameter and the inner diameter of the facing disks 2 and the counter-disks 3 can be adapted to the corresponding circumstances. Sliding
    The same applies to the ratio of outer diameter to inner diameter.
    According to another embodiment variant, it can furthermore be provided that the surface of the friction lining 8 is structured, as indicated by dashed lines in FIG. 2. The structuring can be in the form of grooves, for example grooves with a concentric or radial course, grooves in the form of a trapezoidal pattern, as waffle grooves, etc. There are also discrete elevations in the form of knobs or the like as surface structuring
    possible. The surface of the friction lining 8 can also be made press-smooth.
    The depth of the grooves of the surface structuring (s) can be selected from a range from 0.1 mm to 2 mm, in particular between 0.5 mm and 1.5 mm. The width of the groove (in the circumferential direction of the friction plate 8) can be selected from a range from 1 mm to 3 mm, in particular between 1 mm and
    2.5 mm. The grooves can have a rectangular, square, trapezoidal
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    gene, round, etc. have cross-section. All grooves of a surface structure can be made the same. But there can also be different grooves
    (Width, depth, shape) can be combined on one surface.
    The friction lining 8 can have a porosity that is greater than 10%. In particular, the friction lining can have a porosity which is selected from a range with a lower limit of 15% and an upper limit of 40%. The porosity denotes the relative proportion of the cavity volume in the total volume of the friction lining 8. The porosity can be measured by means of mercury intrusion and extrusion: pore volume according to ISO 15901-1 (DIN 66133).
    To further improve the properties of the friction lining 8, the porosity can also be selected from a range with a lower limit of 20% and an upper limit of 35%, in particular selected from a range of
    rich with a lower limit of 25% and an upper limit of 30%.
    The binder-free friction lining 8 has a friction lining body. Binder-free means that the friction lining 8 does not have any organic resins as binders. The friction lining body has a metallic matrix, at least one abrasive substance, solid lubricants, and optionally at least one filler or consists of it, in the latter case all components of the friction lining body
    add to 100% by weight.
    The proportion of the metallic matrix on the friction lining 8 can be selected from a range with a lower limit of 50% by weight and an upper limit of 90% by weight. The proportion of the metallic matrix can be further selected from a range with a lower limit of 70% by weight and an upper limit
    Limit of 80% by weight.
    Preferably, at least one metal or a metal alloy is selected for the metallic matrix which has a hardness according to Vickers which is selected from a range of a lower limit of 30 HV10 and an upper limit of 80 HV10. Metals of this hardness make it possible that
    at least part of the abrasive effect of the friction lining due to the metallic
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    Matrix is obtained, especially if the metallic matrix is not
    fen or the like is post-treated to smooth the surface.
    In particular, at least one metal or a metal alloy can be selected for the metallic matrix which has a hardness according to Vickers which is selected from a range of a lower limit of 40 HV10 and
    an upper limit of 60 HV10.
    For example, the metallic matrix can consist of at least one element from a group comprising copper, iron, tin, zinc or alloys with it and mi
    be formed from it.
    The proportion of the abrasive substance in the friction lining 8 is preferably a maximum of 5
    Wt%.
    The at least one abrasive substance can be selected from a group comprising mullite, silicon dioxide, corundum, glass, aluminum oxide (Al2O3), and mixtures thereof, with these abrasive substances also having a high abrasive effect
    such low proportions of abrasives can be achieved.
    The proportion of the at least one filler in the friction lining 8 can be selected from a range of a lower limit of 5% by weight and an upper limit of 35% by weight. The filler is particularly preferably a silicate filler, in particular, according to one embodiment variant, selected from a group comprising mica, feldspar, kieselguhr or mixtures thereof. In particular, thanks to the latter special fillers in combination with the high porosity, high coefficients of friction could be achieved despite low proportions of abrasives
    the.
    The metallic matrix contains at least two different solid lubricants selected from a group consisting of hexagonal boron nitride and metal sulfides with at least one metal from the group tungsten, iron, tin, copper, bismuth, antimony, chromium, zinc, silver, manganese, molybdenum . In particular, the group of solid lubricants can, in addition to hexagonal boron nitride, also include Sb2Sz3, Bi2S2z, Cr2S3, Cu2S, CuS, CuFeSz, FeS, FeS2z, MnS, MoSz2, Agz2S, WSz,
    N2019 / 04500-AT-00
    SnS, SnSz2, Sn2 $ S :, ZnS. It can be provided that the solid lubricants are formed by at least two metal sulfides that contain the same metal.
    show, for example by SnS and SnSz2.
    In addition to these solid lubricants, graphite, in particular natural graphite or synthetic primary or secondary graphite, coke and mixtures can also be used
    be included from it.
    It is advantageous if the total proportion of solid lubricant in the metallic matrix is selected from a range with a lower limit of 5% by weight and an upper limit of 30% by weight. In particular, the total proportion of solid lubricants on the friction lining 8 can be selected from a range with a lower limit of 6 wt.% And an upper limit of 15 wt.%, Or selected from a range with a lower limit of 8 wt. -% and
    an upper limit of 10% by weight.
    Tin sulfides can contain a total of between 2% and 7% by weight.
    keep his
    The total proportion of iron sulfides on the friction lining body can be between 1 wt.
    % and 5% by weight.
    The total proportion of hexagonal boron nitride in the friction lining body can be between 1% by weight and 6% by weight. If hexagonal boron nitride and graphite are contained, the quantitative ratio of graphite to hexagonal boron nitride can be chosen from
    be selected from a range of 3 to 6.
    It can also be provided that the solid lubricants are partly of natural origin and partly synthetically produced. It is advantageous if a quantitative ratio of natural solid lubricant to synthetic solid lubricant is selected from a range from 1.5 to 5. In general, the quantitative proportion of synthetic solid lubricants can be between 0.5% by weight and 5
    % By weight.
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    The synthetic solid lubricants are produced in particular on the basis of graphite and on the basis of metal sulfides or synthetic graphite and synthetic
    Metal sulfides from the group of metals listed above.
    Some preferred examples of solid lubricant compositions of the friction lining 8 are given below, but they are not of a limiting nature.
    ter have. All information on the composition are% by weight. Example a.)
    2% to 6 SnS +1% to 5% SnSz, for example 4% SnS + 3% SnS2 Example b.)
    0.5% to 1.5% SnS + 1% and 3% SnSz + 0.5-% and 3% Sn2S3 + 3.5% and 7.5% hexagonal boron nitride, for example 1% SnS + 2 SnSz2 + 1, 5% Sn2S; +
    5.5% hexagonal boron nitride
    Example c.)
    6% to 10% SS + 2% and 6% FeS, for example 8% SnS + 4% FeS example d.)
    1% to 5% SS + 2% to 6% FeS + 0.5% to 1% synthetic solid lubricant based on zinc sulfide with tungsten sulfide and with graphite, for example 3% SnS + 4% FeS + 0.75% synthetic solid lubricant
    Example e.)
    2% to 6% SnS +1% to 3.5% FeS + 0.5% to 4% hexagonal boron nitride + 0.5% to 3% synthetic solid lubricant based on zinc sulfide with tungsten sulfide and with graphite, for example 4% SnS + 2.5% FeS + 2% hexagonal boron
    nitride + 1.5% synthetic solid lubricant
    Example f.)
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    4% to 8% SnS + 2% to 6% hexagonal boron nitride + 10% to 17% graphite + 0.5% to 3% synthetic solid lubricant based on zinc sulfide with tungsten sulfide and with graphite, for example 6% SnS + 4% hexagonal boron nitride + 15%
    Graphite + 2% synthetic solid lubricant.
    The following examples of friction linings 8 were produced with these solid lubricant compositions, but these are not restrictive. All information on the composition are also to be understood as% by weight.
    hen. Example 1:
    60.0% copper, 10.0% iron, 15.0% feldspar, 1% SnS + 2 SnS2 + 1.5% Snz2Sz
    + 5.5% hexagonal boron nitride, 5% aluminum oxide Example 2:
    60.0% copper, 2.0% tin, 20.0% kieselguhr, 8% SnS + 4% FeS, 2.0% natural graphite, 4.0% corundum
    Example 3:
    60.0% copper, 14.0% iron, 8.0% mica, 1% SnS +2 SnS2 + 1.5% Sn2S3 + 5.5% hexagonal boron nitride, 3.5% natural graphite, 4.5% aluminum oxide
    Example 4:
    64.0% copper, 3.0% zinc, 4.0% mica, 6% SnS + 4% hexagonal boron nitride
    + 15% graphite + 2% synthetic solid lubricant, 2.0% silicon oxide Example 5: 70.0% copper, 8.0% mica, 10.0% feldspar, 4% SnS + 3% SnSz, 5% mullite
    Example 6:
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    70.0% copper, 15.0% iron, 4% SnS + 2.5% FeS + 2% hexagonal boron nitride
    + 1.5% synthetic solid lubricant, 5% silicon oxide Example 7:
    90.0% copper, 3% SnS + 4% FeS + 0.75% synthetic solid lubricant, 2.25% mullite
    Example 8:
    50.0% copper, 9.0% iron, 10.0% kieselguhr, 15.0% mica, 4% SnS + 2.5% FeS + 2% hexagonal boron nitride + 1.5% synthetic solid lubricant, 6% silicon
    zium oxide
    In the course of the validation of the invention, the friction coefficient accuracy of the friction linings 8 was also determined. 4 shows the distribution of the coefficients of friction for friction linings according to EP 2 012 038 A2, and FIG. 5 shows the distribution of the coefficients of friction for friction linings 8 according to the invention. The coefficient of friction is plotted on the abscissa and the frequency on the ordinate. It
    708 samples were measured in each case.
    As can be seen immediately by comparing the two figures, the friction
    linings 8 according to the invention have a significantly higher coefficient of friction accuracy.
    The exemplary embodiments show or describe possible design variants, whereby it should be noted at this point that combinations of the individual
    Variants with one another are possible.
    For the sake of order, it should finally be pointed out that for a better understanding of the structure of the friction assembly or the disk set 1 and the
    Slats these are not necessarily shown to scale.
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    Disk pack Lining disk Opposing disk Axial direction Carrier disk Surface surface Friction lining Disk body Driving element Driving element Segment
    distance
    width
    18th
    List of reference symbols
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    权利要求:
    Claims (18)
    [1]
    1. Binder-free, sintered friction lining (8) with a friction lining body which comprises a metallic matrix, at least one abrasive, solid lubricants, and optionally at least one filler, characterized in that the solid lubricants are formed by at least two different solid lubricants which are selected from one Group consisting of hexagonal boron nitride and metal sulfides with at least one metal from the group tungsten,
    Iron, tin, copper, bismuth, antimony, chromium, zinc, silver, manganese, molybdenum.
    [2]
    2. friction lining (8) according to claim 1, characterized in that the solid lubricants are formed by at least two metal sulfides, which the same
    have metal.
    [3]
    3. friction lining (8) according to claim 1 or 2, characterized in that
    graphite is also included.
    [4]
    4. friction lining (8) according to any one of claims 1 to 3, characterized in that the total proportion of solid lubricants on the friction lining body
    is selected from a range from 5% by weight to 30% by weight.
    [5]
    5. friction lining (8) according to any one of claims 1 to 4, characterized in that the friction lining body contains tin sulfides as solid lubricants, the total proportion of tin sulfides on the friction lining body is between 2 wt .-% and 7 wt .-%.
    [6]
    6. friction lining (8) according to any one of claims 1 to 5, characterized in that the friction lining body contains iron sulfides as solid lubricants, the total proportion of iron sulfides on the friction lining body between 1 wt.% And 5 wt .-% is.
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    [7]
    7. Friction lining (8) according to one of claims 1 to 6, characterized in that the friction lining body contains hexagonal boron nitride as solid lubricants, the total proportion of hexagonal boron nitride on the friction lining body
    is between 1 wt% and 6 wt%.
    [8]
    8. friction lining (8) according to any one of claims 3 to 7, characterized in that the friction lining body contains graphite and hexagonal boron nitride as solid lubricants, a ratio of graphite to hexagonal boron nitride
    is selected from a range from 3 to 6.
    [9]
    9. Friction lining (8) according to one of claims 1 to 8, characterized in that the solid lubricants are partly of natural origin and partly synthetically produced, a ratio of natural solid lubricant to synthetic solid lubricant being selected from a range from 1.5 to 5.
    [10]
    10. The friction lining (8) according to claim 9, characterized in that the proportion of synthetically produced solid lubricant on the friction lining body is between 0.5% by weight and 5% by weight.
    [11]
    11. Friction lining (8) according to one of claims 1 to 10, characterized in that the friction lining body contains SnS and SnSz2 as solid lubricants, the proportion of SnS on the friction lining body between 2 wt .-% and 6 wt .-% and the proportion of SnS $ 2 on the friction lining body between 1% by weight and 5% by weight
    amounts.
    [12]
    12. Friction lining (8) according to one of claims 1 to 10, characterized in that the friction lining body contains SnS, SnS2, Sn2S3s and hexagonal boron nitride as solid lubricants, the proportion of SnS on the friction lining body between
    between 0.5 wt .-% and 1.5 wt .-%, the proportion of SnS2 on the friction lining body between
    N2019 / 04500-AT-00
    between 1% and 3% by weight, the proportion of Sn2S3 in the friction lining body between 0.5% and 3% by weight and the proportion of hexagonal boron nitride in the
    Friction lining body is between 3.5 wt .-% and 7.5 wt .-%.
    [13]
    13. Friction lining (8) according to one of claims 1 to 10, characterized in that the friction lining body contains SnS and FeS as solid lubricants, the proportion of SnS in the friction lining body between 6% by weight and 10% by weight and the proportion of FeS on the friction lining body between 2% by weight and 6% by weight
    amounts.
    [14]
    14. Friction lining (8) according to one of claims 1 to 10, characterized in that the friction lining body contains SnS, FeS and a synthetic solid lubricant based on zinc sulfide with tungsten sulfide and with graphite as solid lubricants, the proportion of SnS on the friction lining body between 1 wt % and 5% by weight, the proportion of FeS in the friction lining body is between 2% by weight and 6% by weight and the proportion of the synthetic solid lubricant is between 0.5% by weight and 1% by weight.
    [15]
    15. Friction lining (8) according to one of claims 1 to 10, characterized in that the friction lining body contains SnS, FeS, hexagonal boron nitride and a synthetic solid lubricant based on zinc sulfide with tungsten sulfide and with graphite as solid lubricants, the proportion of SnS in the friction lining body between 2% by weight and 6% by weight, the proportion of FeS on the friction lining body between 1% and 3.5% by weight, the proportion of hexagonal boron nitride on the friction lining body between 0.5% by weight and 4% by weight and the proportion of the syn-
    thetic solid lubricant between 0.5 wt .-% and 3 wt .-%.
    [16]
    16. friction lining (8) according to one of claims 1 to 10, characterized
    shows that the friction lining body contains SnS, hexagonal boron nitride, graphite and a synthetic solid lubricant based on zinc sulfide with tungsten sulfide and with graphite as solid lubricants, whereby the proportion of SnS in the friction lining body
    per between 4 wt .-% and 8 wt .-%, the proportion of hexagonal boron nitride on
    N2019 / 04500-AT-00
    Friction lining body between 2 wt .-% and 6 wt .-%, the proportion of graphite in the friction lining body between 10 wt .-% and 17 wt .-% and the proportion of the
    synthetic solid lubricant is between 0.5 wt .-% and 3 wt .-%.
    [17]
    17. Friction component with a carrier on which a friction lining (8) is arranged, characterized in that the friction lining (8) according to one of claims 1
    to 16 is formed.
    [18]
    18. Friction assembly, in particular clutch or brake, with at least one friction component, characterized in that the at least one friction component
    according to claim 17 is formed.
    N2019 / 04500-AT-00
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    同族专利:
    公开号 | 公开日
    US20200292021A1|2020-09-17|
    AT522255B1|2022-01-15|
    CN111692256A|2020-09-22|
    EP3708276A1|2020-09-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20100043303A1|2006-12-13|2010-02-25|Diamond Innovations, Inc.|Abrasive compact with improved machinability|
    EP2012038A2|2007-07-04|2009-01-07|Miba Frictec GmbH|Dry run friction covering|
    WO2018185944A1|2017-04-07|2018-10-11|新日鐵住金株式会社|Sintered friction material|
    FR2429066B1|1978-06-20|1981-05-29|Roulements Soc Nouvelle|
    GB2106823B|1981-09-03|1985-08-14|Lucas Ind Plc|Producing a friction element for a disc brake|
    JPH0210857B2|1983-11-14|1990-03-09|Nippon Funmatsu Gokin Kk|
    US5339931A|1993-05-07|1994-08-23|Allied-Signal Inc.|Porous copper powder modified friction material|
    DE4443666A1|1994-12-08|1996-06-20|Sinterstahl Gmbh|Synchronizer ring with sintered bronze friction surface|
    JPH093564A|1995-06-23|1997-01-07|Akebono Brake Ind Co Ltd|Copper-base sintered friction material|
    AT505794B1|2007-10-10|2011-11-15|Miba Frictec Gmbh|SINTER BRAKE LINING|
    JP5716494B2|2011-03-30|2015-05-13|新日鐵住金株式会社|Sintered friction material for high-speed railway|
    AT517893A1|2015-10-20|2017-05-15|Tribotecc Gmbh|Tribological material|CN112745802B|2021-01-29|2022-03-08|济南金麒麟刹车系统有限公司|Copper-free NAO friction material, brake pad and preparation method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50220/2019A|AT522255B1|2019-03-13|2019-03-13|friction lining|ATA50220/2019A| AT522255B1|2019-03-13|2019-03-13|friction lining|
    CN202010168613.1A| CN111692256A|2019-03-13|2020-03-12|Friction lining|
    EP20162640.5A| EP3708276A1|2019-03-13|2020-03-12|Friction lining|
    US16/818,305| US20200292021A1|2019-03-13|2020-03-13|Friction lining|
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