EP2203660A2 - Friction lining and wear-resistant part - Google Patents
Friction lining and wear-resistant partInfo
- Publication number
- EP2203660A2 EP2203660A2 EP08801290A EP08801290A EP2203660A2 EP 2203660 A2 EP2203660 A2 EP 2203660A2 EP 08801290 A EP08801290 A EP 08801290A EP 08801290 A EP08801290 A EP 08801290A EP 2203660 A2 EP2203660 A2 EP 2203660A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- friction lining
- friction
- component
- wear
- resistant
- 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.)
- Ceased
Links
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Compositions of linings; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Compositions of linings; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
- F16D69/026—Compositions based on an organic binder containing fibres
-
- 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
- Y10T428/21—Circular sheet or circular blank
- Y10T428/213—Frictional
-
- 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
- Y10T428/249922—Embodying intertwined or helical component[s]
Definitions
- the invention relates to a friction lining and a wear-resistant component.
- components are used which have to withstand high demands both with regard to the friction load and with regard to the thermal load.
- high demands for transportation applications in production plants, e.g. for transport rollers for conveying still hot or hot semi-finished products or products, often such high demands.
- the invention has for its object to provide a high-temperature resistant friction lining and a wear-resistant component.
- a high-temperature resistant friction lining comprising a matrix with a wear-resistant friction component embedded therein and with an additional component, wherein the additional component is designed such that it converts when energy is absorbed when a limit temperature is exceeded.
- high temperature resistant is in this case understood in particular a friction lining, which is temperature-resistant at temperatures, especially above 150 0 C and is not thermally damaged.
- the particular advantage of the friction lining is to be seen in the additional component, since it acts quasi cooling when a limit temperature is exceeded, since it extracts thermal energy from the environment.
- the limit temperature is, for example, a defined temperature from which a chemical or else physical conversion of the additional component or of the additive due to the thermal energy is initiated.
- the limit temperature may also be a temperature range, for example as in a chemical equilibrium reaction, in which shifts the equilibrium depending on the temperature.
- the friction lining is preferably designed in the manner of a coating and applied to a base body. Alternatively, a solid body is formed by the friction lining, which also forms the wear-resistant component.
- the additional component is designed such that it exceeds the limit temperature, an endothermic chemical reaction, Oein together.
- an endothermic chemical reaction is, for example, the removal of partial components, such as, for example, water of crystallization.
- the additional component can also be designed such that an endothermic physical phase transition takes place.
- the additional component here is preferably a hydroxide, for example a metal hydroxide.
- the hydroxides used are preferably aluminum hydroxide and / or magnesium hydroxide. In both cases, decomposition takes place at temperatures above a defined limit temperature to aluminum or magnesium oxide with elimination of water. For magnesium hydroxide, for example, this occurs at temperatures above about 35O 0 C. The thermal energy consumption in this decomposition, the friction lining is effectively cooled overall.
- salts in particular inorganic salts or metal salts.
- borates are used. Both aluminum hydroxide and magnesium hydroxide or the borates are agents that are also used as flame retardants.
- the matrix in an expedient embodiment is a plastic matrix and in particular a thermosetting synthetic resin, preferably based on phenolic resin.
- a wear-resistant fiber is provided as the friction component in an expedient embodiment.
- this is a plastic fiber, such as an aramid fiber, in particular a so-called para-aramid fiber (p-aramid fiber).
- PBO-fiber is the chemical name for p-phenylene-2,6-benzobisoxazo.
- the particular advantage of PBO fiber is to be seen in their significantly higher heat resistance, for example, in comparison to the p-aramid fiber. It has a high resistance to heating, a high flame resistance and also improved mechanical properties over the p-aramid fiber. Overall, therefore, the PBO fiber is particularly suitable for a high temperature resistant and wear resistant friction lining. Especially in connection with the endothermic reacting additional component such a trained friction lining is of particular importance.
- the fiber is preferably soaked in synthetic resin.
- the single fiber is therefore each surrounded by synthetic resin.
- fiber bundles or yarns are wound onto a metallic body.
- Such a friction lining is expediently used for a transport component, in particular a transport roller.
- the friction lining may in this case be applied as a coating to a main body of the component or alternatively also form an independent solid component.
- the friction lining can be used in addition to transport components for components from other technical areas in other areas, such as friction linings such as braking devices, where high temperatures can occur during operation.
- a wear-resistant component in particular a transport component and preferably a transport roller with such a friction lining.
- the advantages and preferred embodiments cited with regard to the friction lining are to be transferred analogously to the component as well.
- the single FIGURE shows by way of example a partially illustrated winding device for producing a transport roller.
- a rotatable spindle 2 a here not closer to recognizable cylindrical base body is attached, which rotates during the winding process.
- a feeder 4 a soaked in synthetic resin e PBO fiber strand 8 is supplied and wound onto the base body in the manner of a cross winding, so that on the base body, a friction lining 10 is formed.
- the base body with the friction lining 10 applied thereon forms the transport roller 12.
- the height of the friction lining is for example a few centimeters.
- aluminum hydroxide and / or magnesium hydroxide is introduced in a manner not shown here as an additional component.
- the proportion of these hydroxides in the entire friction lining is in the range of 18 to 48 vol .-%, and preferably at about 33 vol .-%.
- a PBO fiber strand 8 is used, which consists of a plurality of, for example, twisted together or stranded individual PBO fibers.
- Such a friction lining which in particular has the PBO fiber as a wear-resistant and high-temperature resistant friction component in combination and additionally as an additional component aluminum hydroxide and / or magnesium hydroxide, has a very good thermal resistance.
- the transport roller has a temperature resistance of about up to 500 to 600 0 C. If the transport roller comes into contact with higher temperatures for a short time, this does not lead to damage to the friction lining 10. Rather, this is done by "activating" the additional component so that it cools its environment achieved the elimination of water.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710046156 DE102007046156A1 (en) | 2007-09-27 | 2007-09-27 | Friction lining and wear-resistant component |
PCT/DE2008/001483 WO2009039819A2 (en) | 2007-09-27 | 2008-09-03 | Friction lining and wear-resistant part |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2203660A2 true EP2203660A2 (en) | 2010-07-07 |
Family
ID=40104869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08801290A Ceased EP2203660A2 (en) | 2007-09-27 | 2008-09-03 | Friction lining and wear-resistant part |
Country Status (4)
Country | Link |
---|---|
US (1) | US7897232B2 (en) |
EP (1) | EP2203660A2 (en) |
DE (1) | DE102007046156A1 (en) |
WO (1) | WO2009039819A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009000248A1 (en) * | 2007-06-28 | 2008-12-31 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Impregnating method for the production of wound coupling coatings |
DE102012103079A1 (en) | 2012-04-10 | 2013-10-10 | Krones Ag | Roller conveyor for plastic preforms |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5780152A (en) * | 1996-02-19 | 1998-07-14 | Toyo Boseki Kabushiki Kaisha | High temperature resistant blended yarn |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3520390A (en) * | 1968-02-08 | 1970-07-14 | Raybestos Manhattan Inc | Clutch facing |
JP2867661B2 (en) * | 1989-09-01 | 1999-03-08 | 住友電気工業株式会社 | Friction material and method of manufacturing the same |
US5266395A (en) * | 1989-09-18 | 1993-11-30 | Sumitomo Electric Industries, Ltd. | Friction material for making brake pads |
US5397847A (en) * | 1992-10-20 | 1995-03-14 | The University Of Akron | Heat-resistant laminate materials and preparation thereof |
US5573579A (en) * | 1994-03-17 | 1996-11-12 | Osaka Gas Company, Ltd. | Method for producing friction material |
DE60326439D1 (en) * | 2002-03-29 | 2009-04-16 | Kazari Ichi Co Ltd | Npolymer |
US7727357B2 (en) * | 2005-12-21 | 2010-06-01 | E. I. Du Pont De Nemours And Company | Polyareneazole/thermoset pulp and methods of making same |
-
2007
- 2007-09-27 DE DE200710046156 patent/DE102007046156A1/en not_active Withdrawn
-
2008
- 2008-09-03 WO PCT/DE2008/001483 patent/WO2009039819A2/en active Application Filing
- 2008-09-03 EP EP08801290A patent/EP2203660A2/en not_active Ceased
-
2010
- 2010-03-26 US US12/748,006 patent/US7897232B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5780152A (en) * | 1996-02-19 | 1998-07-14 | Toyo Boseki Kabushiki Kaisha | High temperature resistant blended yarn |
Also Published As
Publication number | Publication date |
---|---|
DE102007046156A1 (en) | 2009-04-02 |
US20100209691A1 (en) | 2010-08-19 |
WO2009039819A3 (en) | 2009-06-25 |
WO2009039819A2 (en) | 2009-04-02 |
US7897232B2 (en) | 2011-03-01 |
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17Q | First examination report despatched |
Effective date: 20101201 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
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DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG |
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Ref country code: DE Ref legal event code: R003 |
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Effective date: 20140525 |
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P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230523 |