WO2017101933A1 - Verfahren zum vorbehandeln eines reibbelags - Google Patents
Verfahren zum vorbehandeln eines reibbelags Download PDFInfo
- Publication number
- WO2017101933A1 WO2017101933A1 PCT/DE2016/200563 DE2016200563W WO2017101933A1 WO 2017101933 A1 WO2017101933 A1 WO 2017101933A1 DE 2016200563 W DE2016200563 W DE 2016200563W WO 2017101933 A1 WO2017101933 A1 WO 2017101933A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- friction lining
- friction
- laser irradiation
- oxidation layer
- pretreatment
- 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—Composition of linings ; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
- F16D69/026—Compositions based on an organic binder containing fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
-
- 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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/16—Composite materials
-
- 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
- F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
-
- 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
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0038—Surface treatment
-
- 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
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0038—Surface treatment
- F16D2250/0053—Hardening
Definitions
- the invention relates to a method for pretreating a friction lining, in particular a dry friction Kupplungsreibbelags, with carbon compounds.
- the object of the invention is to improve the properties of a friction lining, in particular a dry-running Kupplungsreibbelags.
- the object is achieved in a method for pretreating a friction lining, in particular a dry Kupplungsreibbelags running with carbon compounds, characterized in that an active surface of the friction lining is changed by means of laser irradiation so that an oxidation layer containing carbon compounds.
- the friction lining is preferably a dry clutch friction lining.
- a blank is preferably produced by winding.
- the blank preferably produced by winding, is formed from a resin in which fiber and / or filler components are embedded.
- the resin is, for example, a phenol resin / melamine resin.
- the blank preferably contains at least one, several or each of the following components: rubber, glass fibers, organic fibers, copper. If necessary, brass can also be used instead of copper.
- Green state is a state of the per se finished and cured friction lining. When installed, the finished friction lining changes during a so-called running-in process. Investigations and tests carried out in the context of the present invention have shown that found that the friction lining is still in its green state shows when entering friction coefficient fluctuations that are undesirable.
- the fluctuating coefficient of friction behavior can also be referred to as the green behavior of the friction lining.
- the controllability of a system equipped with the pretreated friction lining in particular a coupling system equipped with the pretreated dry friction clutch lining, can be significantly improved.
- the changing of the effective surface of the friction lining by means of laser irradiation can also be referred to as the conditioning of a friction surface of the friction lining.
- a preferred embodiment of the method is characterized in that the pretreatment by means of laser irradiation after curing of the friction lining, in particular the dry-running Kupplungsreibbelags done.
- the friction lining preferably in an oven, is exposed to relatively high temperatures of, for example, more than two hundred degrees Celsius. After hardening, the friction lining is finished in itself and can be connected to a drive plate before it is mounted in a coupling.
- the pretreatment by means of laser irradiation thus represents an additional treatment after curing.
- a further preferred embodiment of the method is characterized in that the active surface is partially conditioned by means of laser irradiation.
- the active surface or friction surface of the friction lining is scanned or scanned during conditioning by laser irradiation with a laser beam. Almost any structures can be created in the active surface. By the laser irradiation but no depressions or grooves are generated in the friction surface.
- the laser irradiation creates a structured oxidation layer containing carbon compounds.
- a further preferred embodiment of the method is characterized in that the active surface is conditioned over the entire area by means of laser irradiation. Full-surface means that the entire surface, in particular the entire friction surface, of the friction lining is scanned or worn off with the laser.
- a further preferred embodiment of the method is characterized in that a friction surface of the friction lining is provided with a full-surface oxidation layer by the pretreatment by means of laser irradiation.
- Full surface means that the friction surface is continuously covered with the oxidation layer.
- the fully applied oxidation layer preferably has a substantially uniform layer thickness.
- a further preferred embodiment of the method is characterized in that a friction surface of the friction lining is provided with a structured oxidation layer by the pretreatment by means of laser irradiation.
- the oxidation layer may have almost any structures.
- the structures of the oxidation layer are preferably carried out uniformly.
- the structured oxidation layer preferably does not have a uniform layer thickness.
- a further preferred embodiment of the method is characterized in that the oxidation layer has a layer thickness which is significantly smaller than one millimeter. With such layer thicknesses, good results have been achieved in experiments and examinations carried out in the context of the present invention.
- a further preferred embodiment of the method is characterized in that the oxidation layer has a layer thickness of about one to three tenths of a millimeter. With this layer thickness, the best results were achieved in the experiments and examinations carried out in the context of the present invention.
- Another preferred exemplary embodiment of the method is characterized in that the pretreatment or conditioning by means of laser irradiation takes place before the friction lining is connected to a driver disk.
- the pretreated or conditioned friction lining can, for example, be fastened to the driver disk in a form-fitting manner, in particular by means of rivet connection elements.
- the invention further relates to a friction lining, in particular a dry-running Kupplungsreibbelag with carbon compounds, according to a pre described method is pretreated so that an active surface of the friction lining has an oxidation layer containing carbon compounds.
- the pretreated friction lining has a significantly better coefficient of friction behavior than a friction lining that is still in its green state.
- Dry running clutch linings consist for example of resin, rubber, fiber and filler components.
- the dry-running clutch lining comprises, for example, eighteen percent resin, ten percent rubber, thirty percent glass fibers, thirteen percent organic fibers, seven percent copper, four percent crosslinkers, three percent process aids, and fifteen percent fillers. The percentages represent percentages by weight.
- Such Kupplungsreibbeläge are used in particular in friction clutches of motor vehicles.
- the clutch friction linings are firmly connected to a metal carrier plate as a lining carrier or riveted to a clutch disc to allow in conjunction with a mating partner in a coupled state torque transmission between an engine and a transmission, or disengage with the clutch open.
- a blank or preform is made by winding.
- the blank is received in a hot press mold and pressed in a hot pressing process to a desired shape, wherein a compression of the blank, which is also referred to as a compact takes place.
- the preform or compact which can already be referred to as a friction lining, is still hardened.
- the hardening temperature is, for example, between two hundred and three hundred degrees Celsius. The hardening lasts for twenty hours, for example.
- crosslinking of the resin is completed. In addition, volatile components are expelled during curing.
- the friction lining is finished.
- the hardened friction lining is subjected to pretreatment or conditioning before it is attached to a drive plate.
- a friction lining surface in particular the friction surface of the friction lining, is purposefully modified by laser irradiation in such a way that an oxidation layer containing carbon compounds is formed.
- Such an oxidation layer with carbon compounds is formed during normal operation of a friction system equipped with the friction lining due to temperature effects due to friction energy.
- the friction lining Before the formation of the oxidation layer with the carbon compounds, the friction lining is still in its green state, in which it shows pronounced friction value fluctuations. These friction coefficient fluctuations are significantly reduced by the pretreatment or preconditioning or conditioning of the friction lining.
- the laser treatment is carried out, for example, with a carbon laser.
- the friction lining in a final operation before installation on the
- Driving disc surface so irradiated with the laser that the effective surface of the friction lining, which is the friction surface is changed.
- the oxidation layer with the carbon compounds is formed by burning the active surface.
- the oxidation layer resulting from the pretreatment has a layer thickness of about one tenth of a millimeter.
- the layer thickness can be measured on a cross section through the pretreated friction lining.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Braking Arrangements (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112016005769.5T DE112016005769A5 (de) | 2015-12-17 | 2016-11-30 | Verfahren zum Vorbehandeln eines Reibbelags |
| US16/062,815 US10823245B2 (en) | 2015-12-17 | 2016-11-30 | Method for the pretreatment of a friction lining |
| CN201680071409.XA CN108368904A (zh) | 2015-12-17 | 2016-11-30 | 用于预处理摩擦衬片的方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015225638.3A DE102015225638A1 (de) | 2015-12-17 | 2015-12-17 | Verfahren zum Vorbehandeln eines Reibbelags |
| DE102015225638.3 | 2015-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017101933A1 true WO2017101933A1 (de) | 2017-06-22 |
Family
ID=57614104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2016/200563 Ceased WO2017101933A1 (de) | 2015-12-17 | 2016-11-30 | Verfahren zum vorbehandeln eines reibbelags |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10823245B2 (de) |
| CN (1) | CN108368904A (de) |
| DE (2) | DE102015225638A1 (de) |
| WO (1) | WO2017101933A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020122272B4 (de) | 2020-08-26 | 2023-07-27 | Tmd Friction Services Gmbh | Verfahren zur Verringerung der Geräusch- und Vibrationsentwicklung bei Reib- und Bremsbelägen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080199641A1 (en) * | 2006-10-03 | 2008-08-21 | Aisin Kako Kabushiki Kaisha | Wet-type friction material and its manufacturing method |
| DE102009013406A1 (de) | 2008-03-31 | 2009-10-01 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Reibbelag |
| FR3019767A1 (fr) * | 2014-04-11 | 2015-10-16 | Valeo Materiaux De Friction | Procede de traitement perfectionne d'une surface d'un element de friction |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003130106A (ja) * | 2001-10-26 | 2003-05-08 | Aisin Chem Co Ltd | 湿式摩擦材及びその製造方法 |
| JP2003184921A (ja) * | 2001-12-12 | 2003-07-03 | Aisin Chem Co Ltd | 乾式クラッチフェーシング及びその製造方法 |
| DE102009008888A1 (de) * | 2009-02-14 | 2010-10-21 | Tmd Friction Services Gmbh | Verfahren zur Behandlung eines Belagträgers |
| DE102012017503A1 (de) * | 2012-05-30 | 2013-12-19 | Eads Deutschland Gmbh | Verfahren zur Nanostrukturierung von anorganischen und organischen Materialien durch kontinuierliche Bestrahlung mit einem Teilchenstrahl |
| DE102012017874A1 (de) * | 2012-09-11 | 2014-03-27 | Hoerbiger Antriebstechnik Holding Gmbh | Verfahren zur Herstellung eines Reibbelags sowie Reibbelag |
-
2015
- 2015-12-17 DE DE102015225638.3A patent/DE102015225638A1/de not_active Withdrawn
-
2016
- 2016-11-30 US US16/062,815 patent/US10823245B2/en not_active Expired - Fee Related
- 2016-11-30 CN CN201680071409.XA patent/CN108368904A/zh active Pending
- 2016-11-30 DE DE112016005769.5T patent/DE112016005769A5/de not_active Withdrawn
- 2016-11-30 WO PCT/DE2016/200563 patent/WO2017101933A1/de not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080199641A1 (en) * | 2006-10-03 | 2008-08-21 | Aisin Kako Kabushiki Kaisha | Wet-type friction material and its manufacturing method |
| DE102009013406A1 (de) | 2008-03-31 | 2009-10-01 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Reibbelag |
| FR3019767A1 (fr) * | 2014-04-11 | 2015-10-16 | Valeo Materiaux De Friction | Procede de traitement perfectionne d'une surface d'un element de friction |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112016005769A5 (de) | 2018-09-13 |
| US10823245B2 (en) | 2020-11-03 |
| DE102015225638A1 (de) | 2017-06-22 |
| CN108368904A (zh) | 2018-08-03 |
| US20180372178A1 (en) | 2018-12-27 |
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