EP1951443B1 - Bauelement, insbesondere formteil, mit einer beschichtung - Google Patents

Bauelement, insbesondere formteil, mit einer beschichtung Download PDF

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Publication number
EP1951443B1
EP1951443B1 EP06804340.5A EP06804340A EP1951443B1 EP 1951443 B1 EP1951443 B1 EP 1951443B1 EP 06804340 A EP06804340 A EP 06804340A EP 1951443 B1 EP1951443 B1 EP 1951443B1
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EP
European Patent Office
Prior art keywords
component
component according
upper limit
lower limit
range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP06804340.5A
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German (de)
English (en)
French (fr)
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EP1951443A1 (de
Inventor
Gerold Stetina
Christian Sandner
Raimund Ratzi
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Miba Sinter Austria GmbH
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Miba Sinter Austria GmbH
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Publication of EP1951443A1 publication Critical patent/EP1951443A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249994—Composite having a component wherein a constituent is liquid or is contained within preformed walls [e.g., impregnant-filled, previously void containing component, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/252—Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/254—Polymeric or resinous material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/259—Silicic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less

Definitions

  • the invention relates to a component comprising at least one component, in particular molding, which consists of a powder or a powder mixture of metallic and optionally contained therein non-metallic components and is prepared by pressing this powder or the powder mixture and subsequent sintering, wherein at least a surface portion of Component, which is provided for cooperation with a further surface portion of another component under application of a force acting between the two surface portions compressive force is coated with a lubricating varnish.
  • a typical sintering process comprises the steps of filling a sinterable material into a mold, pressing it to a so-called green body, sintering this green compact at sintering temperatures, optionally followed by homogenization annealing, and subsequent calibration and optionally curing.
  • sintered components are also used for bearing elements, for example in the form of metallic, self-lubricating and maintenance-free sliding bearings.
  • bearing elements for example in the form of metallic, self-lubricating and maintenance-free sliding bearings.
  • thick-walled sintered plain bearings which contain solid lubricants such as graphite MoS 2 , WS 2 or thick-walled sintered plain bearings which are oil-soaked are part of this type of bearing element.
  • powder mixtures are prepared which already contain solid lubricants. This powder mixture is pressed and then sintered.
  • solid lubricants are suitable that do not decompose at the sintering temperatures of about 800 ° C.
  • Oil-soaked plain bearings have the disadvantage that they contain oil and thus can not be used in many areas.
  • the operating temperature of this type of storage is severely limited, since drying out of the oil takes place at elevated temperatures.
  • a plain bearing material made by sintering Cu particles is known.
  • the sintered layer has thicknesses below 1 mm and the porosities produced by the sintering process are 35% by volume.
  • Lubricants in the form of MoS2 and graphite are introduced into the pores.
  • the porosity generated by the sintering process is determined very strongly by the particle size distribution, so that often the desired homogeneity can not be achieved.
  • the FR 1 426 441 A describes a composite bearing material comprising a carrier strip, a porous-sintered metallic matrix layer bonded thereto, and a polyamide plastic film disposed on and bonded to the sintered layer.
  • the polyamide plastic contains finely divided molybdenum disulfide particles which are substantially evenly distributed.
  • a powder metallurgy produced component having at least one tribologically stressable surface is known, which is provided at least in the region of tribologically stressable surface with a friction-reducing coating consisting essentially of a serving as a primer matrix with at least one in the matrix distributed fine-grained friction-reducing substance consists.
  • the present invention has for its object to reduce the design effort for components of components that contain at least one sintered molded part.
  • the lubricating varnish comprises a polyimide resin, in particular a polyamideimide resin, molybdenum disulfide (MoS 2 ) and graphite, wherein the proportion of the polyimide resin, in particular of the polyimideamide resin, is selected on the lubricating varnish from one area with a lower limit of 60% by weight and an upper limit of 80% by weight, based on the dissolved polyimide resin in the solvent to be removed, ie the proportion of the resin in the paint to be applied, the proportion of MoS 2 is selected from a range having a lower limit of 15% by weight and an upper limit of 25% by weight, and the content of graphite is selected from a range having a lower limit of 5% by weight and an upper limit of 15% by weight. % and the proportions of MoS 2 and graphite are based on the wet lubricating varnish.
  • MoS 2 molybdenum disulfide
  • the two provided for cooperation surface portions are formed displaceable in their relative position to each other.
  • plain bearings can be formed in a simple manner, which can be realized without high additional mechanical complexity and additional bearing parts.
  • the applied lubricating lacquer during the mutual relative displacement achieves noise insulation and thus a reduction in the noise level in systems or machines.
  • the compressive force acting between the cylinder-shaped lateral surfaces of the two surface sections is aligned radially or the pressure acting between the two surface portions axially thereto, whereby a defined force direction is predetermined and thus a uniform load transfer between the two interacting surface sections done.
  • the coated surface portion forms at least tooth flanks of a gear.
  • the further component of the powder or the powder mixture of metallic and optionally contained therein non-metallic components is prepared by compression of this powder or the powder mixture and subsequent sintering.
  • the running properties and smoothness of the mutually moving components can additionally be improved.
  • the lubricating varnish may have a layer thickness selected from a range with a lower limit of 5 microns and an upper limit of 30 microns or a lower limit of 10 microns and an upper limit of 20 microns and a lower limit of 6 microns and an upper limit of 15 microns, which the device to the particular application , such as axial or radial bearings, rotor or stator in VVT systems, gears, can be adjusted and thus in the long term reliably seized, consistent properties of the component a corresponding cost optimization can be achieved.
  • At least one of the components at least partially in the surface portion to be coated has pores, which at least partially fills the lubricating varnish.
  • these pores can have an average diameter selected from a range with a lower limit of 5 ⁇ m and an upper limit of 150 ⁇ m, or selected from a range with a lower limit of 10 ⁇ m and an upper limit of 100 ⁇ m, or selected from a range with a lower limit of 30 microns and an upper limit of 70 microns. It can thus improve the adhesion of the bonded coating on the sinter surface by a kind of "claw effect" occurs, so that these components can be subjected to a higher load.
  • the antifriction varnish or the antifriction varnish layer may have a Vickers hardness selected from a range with a lower limit of 20 HV and an upper limit of 45 HV, or a lower limit of 22 HV and an upper limit of 35 HV a lower limit of 25 HV and an upper limit of 30 HV, whereby correspondingly improved sliding properties are achieved with sufficient fatigue strength of the bearing element.
  • the proportion of the polyimide resin again based on polyimide resin with solvent, be selected from a range with a lower limit of 65% and an upper limit of 75% and a lower limit of 67.5% and an upper limit of 72.5% or the proportion of the polyamide resin 70% be.
  • the MoS 2 content may be selected from a range having a lower limit of 17% and an upper limit of 22% and a lower limit of 18.5% and an upper limit of 21.5%, respectively of MoS 2 is 20%.
  • the proportion of graphite is selected from a range with a lower limit of 7% and an upper limit of 13% and an upper limit of 8.5% and an upper limit of 11.5 % or that the proportion of graphite is 10%.
  • the ratio of MoS 2 to graphite may, according to the embodiment of the invention according to claim 18, be selected from a range with a lower limit of 1.5: 1 and an upper limit of 4.5: 1.
  • the MoS 2 platelets have an average length selected from a range with a lower limit of 10 ⁇ m and an upper limit of 40 ⁇ m or a lower limit of 15 ⁇ m and an upper limit of 35 ⁇ m or more a lower limit of 18 ⁇ m and an upper limit of 25 ⁇ m and / or an average width from a range with a lower limit of 10 microns and an upper limit of 40 microns, or a lower limit of 15 microns and an upper limit of 35 microns, or a lower limit of 18 microns and an upper limit of 25 microns and or an average height selected from a range having a lower limit of 2 nm and an upper limit of 20 nm and a lower limit of 5 nm and an upper limit of 15 nm and a lower limit of 5 nm and an upper limit, respectively Limit of 8 nm.
  • a graphite with a grain size selected from a range with a lower limit of 2 microns and an upper limit of 8 microns, is included.
  • the self-lubricating behavior of the lubricating varnish be varied over wide limits, so possibly taking into account the respective proportions of MoS 2 or graphite, ie, when varying the proportions of these two additives to polyimide resin, turn at least one of the properties of the polymer layer the particular application can be adjusted.
  • the surface of the anti-friction coating has an arithmetic mean roughness Ra according to DIN EN ISO 4287 or ASME B 46.1, selected from a range with a lower limit of 0.2 ⁇ m and a upper limit of 1.5 ⁇ m and a lower limit of 0.5 ⁇ m and an upper limit of 1.0 ⁇ m and a lower limit of 0.8 ⁇ m and an upper limit of 0.9 ⁇ m, respectively
  • the surface of the bonded coating has a maximum roughness profile height Rz according to DIN EN ISO 4287 or ASME B 46.1, selected from a range with a lower limit of 0.5 microns and an upper limit of 10 microns and a lower limit of 3 microns and an upper limit of 8 ⁇ m and a lower limit of 5 ⁇ m and an upper limit of 6 ⁇ m, respectively.
  • FIG. 1 an exemplary embodiment of the arrangement of a coating 1 in the form of a lubricating varnish 2 is exemplified on at least one component 3, wherein this arrangement example represents only one of many possibilities.
  • This component 3 is designed as a molded part 4, which consists of a powder or a powder mixture of metallic and optionally contained therein, non-metallic components is made by pressing this powder or the powder mixture and then sintering.
  • the molded parts 4 produced as a component 3 are produced in a very high quality with respect to the dimensional accuracy, the surface finish and the material quality. The production of the component 3 from the powder or the powder mixture is not described here in detail, since this is well known from the prior art.
  • This formed as a molded part 4 component 3 may be formed for example by a gear, a toothed belt, a sprocket, a thrust washer, by rotatably mounted parts, which also perform only an oscillating motion and an axial and / or radial load.
  • parts of clutches such as coupling body, parts of jaw clutches, sliding sleeves, synchronizer rings, sintered housing or the like may be formed as a molded part 4 or component 3.
  • This component 3 is part of a gear arrangement 5 shown in this embodiment, which still comprises a plurality of components.
  • the component 3 is rotatably arranged on a cylindrical projection 6 of a shaft 7.
  • the component 3 forms with respect to a longitudinal axis 8 an inner cylindrical lateral surface 9.
  • the arranged in the region of the longitudinal axis 8 approach 6 can also be referred to as a bearing pin 10, on which a further cylindrical lateral surface 11 is formed. This is aligned concentrically with the first lateral surface 9 of the component 3.
  • the lateral surface 11 of the bearing pin 10 serves for supporting support of the component 3, in particular its cylindrical surface 9, as for rotating or pivoting rotation or movement about the longitudinal axis 8.
  • the bearing previously own bearing parts, such as sliding bearings or the like. used to form the desired bearing point.
  • the cylindrical lateral surface 9 of the component 3 at least partially a first surface portion 12 and the further cylindrical surface 11 of the journal 10 at least partially another surface portion 13 from.
  • one of the surface portions 12 of the component 3 for cooperation with at least a further surface portion 13 of a further component 14 is provided, wherein this further component 14 may be formed for example by the bearing pin 10.
  • a compressive force for example in the radial direction on the longitudinal axis 8, ie a radial force, is transmitted between them.
  • at least the surface section 12 of the component 3 is assigned the coating 1 described above in the form of the sliding lacquer 2, in particular applied thereon or connected thereto.
  • the two components 3, 14 form together, optionally with further components, a component which forms an independent structural unit for a more complex system, machine or the like.
  • the two surface sections 12, 13 provided for cooperation can be designed to be displaceable relative to each other in their relative position. This can be done by any kind of relative movement or adjustment of the cooperating surface portions 12, 13 of the components 3, 14.
  • a bearing point already forms with the further surface section 13 of the component 14.
  • the cylindrical lateral surface 9 of the component 3 is formed by a bore in the component 3 or molded part 4, wherein the further cylindrical lateral surface 11 forms a portion of a shaft or axis, such as the journal 10.
  • the bearing arrangement in this embodiment shown here comprises at least one thrust washer 15, which serves in cooperation with one, the bearing pin 10 radially superior shoulder 16, the component 3 in the axial direction - ie in the direction of the longitudinal axis 8 - positioned to support.
  • the thrust washer 15 has a breakthrough in a known manner and is of a fastening means 17, such as a screw or the like., Interspersed.
  • the coating 1 is shown in these areas only on the component 3 in exaggerated layer thickness and forms a bearing point with axial loading direction - ie for receiving or supporting an axial force - from.
  • a layer thickness of the coating 1 may have a lower limit of 6 ⁇ m and an upper limit of 20 ⁇ m.
  • the layer accuracy of the bonded coating 2 should have a lower limit of ⁇ 3 ⁇ m and an upper limit of ⁇ 5 ⁇ m. This makes it possible to apply the lubricating varnish 2 in very close tolerances on one of the surface sections 12 and / or 13, which may already be formed without further reworking the bearing point.
  • the component 3 is sintered from the powder or the powder mixture to form a molded part 4, this has at least in the region of or to be coated surface portions 12, 13 not shown here pores.
  • the lubricating varnish 2 penetrates during the application of the same on the surface portion 12, 13 in the pores and fills them at least partially.
  • a better superficial adhesion of the same to the surface portions to be coated 12, 13 is achieved after curing of the bonded coating 2, as in addition to the adhesion even a positive connection between the component to be coated 3, 14 in particular its surface portions 12, 13, and the bonded coating 2 is formed.
  • the gear 21 is formed by the component 3, in particular the molded part 4 and can be in drive connection with a further gear shown only partially.
  • This further gear can in turn be formed by a separate component, in particular a molded part 22, which consists of the powder or the powder mixture of metallic and optionally contained therein, non-metallic components and is prepared by compression of this powder or powder mixture and subsequent sintering , If the gear 7 is again formed by a sintered molding, at least the tooth flanks 19 of the teeth 18 may be coated within the limits described above. As a result, an exact and especially clearance-free engagement between the force and thus the torque transmitting components is achieved in engagement with other gears not shown here 7 or racks, chains or the like.
  • a known design and arrangement of components 3, 21 is shown in the form of an actuator assembly 23, in which, for example, formed as a stator outer member 3 has at its outer ring inside toward the longitudinal axis 8 projecting and distributed over the circumference lugs 24.
  • a recess 25 for receiving at least one sealing element 26 and optionally at least one adjusting element 27 is provided in those of the longitudinal axis 8 facing end portions of the lugs 24, a recess 25 for receiving at least one sealing element 26 and optionally at least one adjusting element 27 is provided.
  • These components 3, 21 in turn form the component or a group of components, which may also include other components.
  • the further component 21 is arranged, which comprises a base body 28 in the region of the longitudinal axis 8. Starting from this, a plurality of protruding projections 29 on the side remote from the longitudinal axis 8 are arranged. These projections 29 engage in the remaining space between the lugs 24 of the component 3 and project up to the surface portion 12, which is formed by a plurality of cylindrical lateral surfaces 9.
  • each have a further recess 30 is provided, in which in turn at least one sealing element 26 and optionally at least one adjusting element 27 is inserted or arranged.
  • the main body 28 of the component 21 forms between the projections 29, the surface portions 13, which are formed by the cylindrical-shaped portions of the lateral surfaces 11.
  • this component 21 can also be referred to as a rotor, which can be displaced relative to the longitudinal axis 8 in the predeterminable limits due to the intermeshing of the lugs 24 and projections 29. is pivotable.
  • the arrangement and installation of the sealing elements 26 and optionally the adjusting elements 27 means here a higher cost due to increased components and their installation.
  • the actuating assembly 23 is modified in relation to that training in the Fig. 2 shown, in turn, for the same parts the same component designations or reference numerals as in the Fig. 2 be used. Likewise, in order to avoid unnecessary repetition, the detailed description and the previous ones will be used FIGS. 1 and 2 referred or referred.
  • Fig. 3 In contrast to the training of Fig. 2 is here in this embodiment according to the Fig. 3 dispensed with the arrangement of the individual sealing elements 26 and adjusting elements 27, wherein on at least one of these facing or cooperating surface portions 12, 13, the coating 1 is applied in the form of the lubricating varnish 2.
  • This allows the arrangement of the recesses 25, 30, as shown in the Fig. 2 has been described, waived and the necessary sealing arrangement in the region of the mutually facing and cooperating surface portions 12, 13 are formed by the applied lubricating varnish 2, which in turn penetrates into the near-surface pores of the coated surface portions 12 and / or 13.
  • the relative adjustment between the components 3, 21 about the common axis 8 can be done by filling at least one of the individual chambers 31 with a pressure medium (not shown here), which has been introduced into chambers 31, which are shown larger here.
  • a pressure medium not shown here
  • the component 21 is pivoted relative to the here fixed member 3 about the longitudinal axis 8, whereby further chambers 32 on the first chambers 31 opposite side of the projection 29 are reduced in volume and so the pivoting movement takes place in enlarging chambers 31.
  • the feeding of the here to be filled chambers 31 via simpler lines 33, which are arranged in the base body 28 and are in communication with a pressure generator not shown here.
  • the base body 28 or component 21 When the pressurization of the lines 33 or chambers 31 is removed, the base body 28 or component 21 can be displaced such that the chambers 31 are reduced in their volume and the further chambers 32 are increased in their volume between the individual lugs 24 or projections 29 become.
  • the return flow of the pressure medium from the chambers 31 via the lines 33 can be made to a supply unit or pressure unit, not shown. If an increase in volume of the chambers 32 and associated therewith a displacement of the component 21 in the opposite direction to the displacement described above, more, not shown lines 33 may open into these chambers 32, whereby with appropriate introduction of the pressure medium, the relative adjustment of the Component 21 against the component 3 in the opposite direction to the adjustment described above.
  • this further component 21 consists of the powder or the powder mixture of metallic and optionally contained therein, non-metallic components and by compression this powder or powder mixture and subsequent sintering is made.
  • the surface portions 12, 13 are formed so that they at least partially abut against each other almost gap-free. It is particularly preferred if the almost backlash-free installation takes place continuously over the mutually facing and interacting surface sections 12, 13. A particularly good sealing effect is achieved if the further surface section 13 of the further component 21 is coated with the bonded coating 2.
  • This virtually play or gap-free abutment of the two components 3, 21 on the mutually facing and cooperating surface portions 12, 13 can be achieved if at least one of the components 3, 21 is produced by sintering. Furthermore, the two surface portions 12, 13 executed in the predeterminable tolerance information or tolerance fields to each other or manufactured. Since in the production of sintered components already high qualities in terms of tolerances can be achieved, a reworking of certain surface areas or surface sections is usually no longer necessary. Subsequently, on at least one of the two surface portions 12, 13 of that component 3, 21, which is made of the powder or the powder mixture, the bonded coating 2 applied to form the coating 1 in a layer thickness, which at least predetermined by the tolerance information or tolerance fields Gap corresponds.
  • This application of the lubricating varnish 2 takes place in a still separated position or position of the individual components 3, 21, wherein subsequently the components 3, 21 are spent after hardening of the lubricating varnish 2 in their predeterminable or predetermined relative position to each other. Subsequently, the two surface sections 12, 13 are displaced relative to each other until the two surface sections 12, 13 have been brought into abutment against each other almost without gaps.
  • tolerance-related gap dimensions of sintered parts that are movable relative to one another can be reduced to such an extent by targeted entry of the surface sections 12, 13 coated with the bonded coating 2 that additional sealing or adjusting elements can be dispensed with. Furthermore, the friction of these systems is generally reduced.
  • a further component 3 is shown in the manner of a molding 4, which forms a coupling body 34 in the present embodiment.
  • a molding 4 which forms a coupling body 34 in the present embodiment.
  • the same reference numerals or component designations for the same parts, as in the preceding Fig. 1 to 3 used.
  • the detailed description in the preceding Fig. 1 to 3 referred or referred.
  • the component 3 shown here such as the coupling body 34, is approximately annular in shape and has on its outer circumference projecting extensions 35 in the form of teeth for the positive connection or coupling with a component not shown here, such as a shift sleeve on.
  • These tooth-like projections 35 have approximately parallel to a longitudinal axis 36 extending tooth flanks 37, which are additionally aligned with respect to the extension 35 on the side facing away from the longitudinal axis 36 side facing each other to extend inclined.
  • These tooth flanks 37 or surfaces serve for engagement with the coupling part not shown in detail, such as a sliding sleeve, wherein these tooth flanks 37 each represent the surface portions 12, which can be provided with the coating 1, namely the lubricating varnish 2.
  • the coupling body 34 has on its disk-shaped, the extensions 35 bearing body on a tubular extension 38, which is conically tapered in the region of its outer periphery toward the longitudinal axis 36.
  • This approach 38 can also be referred to as cone part 39.
  • This conically extending peripheral surface of the cone part 39 or projection 38 also represents a surface portion 12, which with the coating 1, in particular the bonded coating 2, may be provided. But it can also represent the end faces and optionally the inner surfaces of the projection 38 each have a surface portion 12, which may be provided with the coating 1.
  • the individual extensions 35 further have on the side facing the shoulder 38 roof-shaped towards each other towards the tooth flanks 37 widening aligned roof surfaces 40, which in turn surface sections 12 for applying the coating 1, in particular the bonded coating 2, form.
  • the order of the coating 1 in the area of the roof surfaces 40 serves to improve the sliding properties of the sliding sleeve by friction reduction, whereby a simpler and safer coupling process is ensured.
  • the coating 1 on the tooth flanks 37 also improves the sliding properties in connection with the sliding sleeve, whereby additionally the engagement and disengagement is facilitated or improved.
  • the coating in the region of the peripheral surface of the cone part 39 brings a constant Reibieremat with it, whereby a seizure with the or the cooperating part is prevented.
  • the Fig. 5 shows a further component 3 in the form of a synchronizer ring 41, wherein in turn for the same parts the same reference numerals or component names, as in the preceding Fig. 1 to 4 , used. Likewise, to avoid unnecessary repetition, the detailed description in the preceding Fig. 1 to 4 referred or referred.
  • This synchronizer ring 41 is tubular or annular and has in its center the longitudinal axis 36. At its outer periphery further extensions 42 are arranged, which are arranged spaced apart in the circumferential direction. These projections 42 in turn have roof surfaces 43, which form to be coated surface portions 12 for application of the coating 1, in particular of the lubricating varnish 2. At its inner periphery facing the longitudinal axis 36, the synchronizing ring 41 has a conical surface 44, which in turn constitutes a surface section 12 to be coated.
  • the coating 1 on the conical surface 44 serves for this, a constant Reibieremony form and to prevent seizure with the cooperating component, such as a shift sleeve.
  • the application of the coating 1 to the roof surfaces 43 in turn serves to improve the friction properties with respect to the component or components interacting therewith, in particular the sliding sleeve.
  • the resin for the lubricating varnish may be present in at least one solvent, in particular an organic solvent such as xylene, whereby the processability can be facilitated.
  • the solvent content may be selected from a range with a lower limit of 40 wt .-% and an upper limit of 80 wt .-%, in particular with a lower limit of 50 wt .-% and an upper limit of 70 wt. %, preferably with a lower limit of 60% by weight and an upper limit of 65% by weight, based on the resin content, ie resin with solvent.
  • the dry resin portion especially the polyamideimide resin, may be selected from a range having a lower limit of 20% by weight and an upper limit of 50% by weight, more preferably a lower limit of 30% by weight, and an upper one Limit of 40 wt .-%, preferably a lower limit of 35 wt .-% and an upper limit of 37.5 wt .-%.
  • a polymer layer 4 applied according to the invention can have, for example, a dry composition of 35% by weight of polyamideimide resin, 45% by weight of MoS 2 and 20% by weight of graphite or a dry composition which consists of the specified value ranges for the individual ingredients the polymer layer 4 calculated.
  • compositions of the lubricating varnish can relate to the "wet goods", so that, if appropriate, the ranges of the proportions of MoS 2 and graphite are to be adapted accordingly, ie to refer to the "dry product".

Landscapes

  • Lubricants (AREA)
  • Sliding-Contact Bearings (AREA)
  • Paints Or Removers (AREA)
  • Powder Metallurgy (AREA)
  • Gears, Cams (AREA)
  • Mechanical Operated Clutches (AREA)
EP06804340.5A 2005-10-21 2006-10-10 Bauelement, insbesondere formteil, mit einer beschichtung Not-in-force EP1951443B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0172305A AT502630B1 (de) 2005-10-21 2005-10-21 Bauelement, insbesondere formteil, mit einer beschichtung
PCT/AT2006/000412 WO2007045003A1 (de) 2005-10-21 2006-10-10 Bauelement, insbesondere formteil, mit einer beschichtung

Publications (2)

Publication Number Publication Date
EP1951443A1 EP1951443A1 (de) 2008-08-06
EP1951443B1 true EP1951443B1 (de) 2018-03-07

Family

ID=37680677

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EP06804340.5A Not-in-force EP1951443B1 (de) 2005-10-21 2006-10-10 Bauelement, insbesondere formteil, mit einer beschichtung

Country Status (7)

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US (1) US20090311476A1 (zh)
EP (1) EP1951443B1 (zh)
JP (1) JP2009512820A (zh)
CN (1) CN101400453B (zh)
AT (1) AT502630B1 (zh)
CA (1) CA2666167A1 (zh)
WO (1) WO2007045003A1 (zh)

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CA2804158C (en) * 2010-07-16 2017-10-10 Applied Nano Surfaces Sweden Ab Method for providing a low-friction surface
JP5416072B2 (ja) * 2010-10-26 2014-02-12 株式会社日立産機システム スクリュー圧縮機
US8550226B2 (en) * 2011-01-25 2013-10-08 GM Global Technology Operations LLC Transmission synchronizer assembly
CN104169599B (zh) * 2012-03-27 2015-08-26 千住金属工业株式会社 滑动构件
DE102012213972A1 (de) * 2012-08-07 2014-02-13 Schaeffler Technologies AG & Co. KG Riementrieb für ein Kraftfahrzeug
US9956613B2 (en) 2012-10-25 2018-05-01 Senju Metal Industry Co., Ltd. Sliding member and production method for same
CN104981558A (zh) 2013-02-15 2015-10-14 千住金属工业株式会社 滑动构件和滑动构件的制造方法
JP5713073B2 (ja) * 2013-09-27 2015-05-07 千住金属工業株式会社 摺動部材及び摺動部材の製造方法
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US20160317542A1 (en) 2013-12-09 2016-11-03 Respira Therapeutics, Inc. Pde5 inhibitor powder formulations and methods relating thereto
KR101558380B1 (ko) * 2014-04-29 2015-10-07 현대자동차 주식회사 전동식 cvvt용 감속기구의 소음 저감유닛
JP6491244B2 (ja) 2014-06-23 2019-03-27 サウスワイヤー・カンパニー・リミテッド・ライアビリティ・カンパニーＳｏｕｔｈｗｉｒｅ Ｃｏｍｐａｎｙ，Ｌｌｃ 耐ｕｖ性超疎水性コーティング組成物
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CN108135356B (zh) * 2015-09-07 2021-01-08 宜家供应有限公司 抽屉和用于这种抽屉的抽屉滑动系统
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Also Published As

Publication number Publication date
AT502630B1 (de) 2008-01-15
JP2009512820A (ja) 2009-03-26
US20090311476A1 (en) 2009-12-17
CA2666167A1 (en) 2007-04-26
AT502630A1 (de) 2007-05-15
CN101400453A (zh) 2009-04-01
WO2007045003A1 (de) 2007-04-26
EP1951443A1 (de) 2008-08-06
CN101400453B (zh) 2012-11-28

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