WO2011009428A1 - Verfahren zur herstellung eines reibbelags - Google Patents
Verfahren zur herstellung eines reibbelags Download PDFInfo
- Publication number
- WO2011009428A1 WO2011009428A1 PCT/DE2010/000749 DE2010000749W WO2011009428A1 WO 2011009428 A1 WO2011009428 A1 WO 2011009428A1 DE 2010000749 W DE2010000749 W DE 2010000749W WO 2011009428 A1 WO2011009428 A1 WO 2011009428A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- friction
- lining
- friction lining
- plates
- mold
- Prior art date
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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
- F16D13/648—Clutch-plates; Clutch-lamellae for clutches with multiple lamellae
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0082—Production methods therefor
- F16D2200/0086—Moulding materials together by application of heat and pressure
-
- 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
Definitions
- the invention relates to a method with the features according to the preamble of
- Such friction linings are used in particular for friction clutches in vehicles.
- they 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 the coupled state torque transmission between an engine and a transmission, or disengage with the clutch open.
- a friction lining is usually produced as follows: After the friction lining constituents have been homogeneously mixed in a mixer, a predetermined amount of this mixture is filled into a preforming tool, uniformly distributed therein and then pre-compacted into a pre-compact. The preform is received in a hot press mold and pressed in a hot pressing process to the desired shape, with a further compression of the pre-compact takes place. Subsequently, the friction lining can be aftertreated, for example hardened, ground and drilled.
- Document DE 197 12 203 A1 discloses a friction lining and the associated production process in which carrier elements are embedded as lining carriers.
- a friction lining carrier in the friction lining. This can be realized, for example, by metering in a mixture of the friction material in a hot press, then a lining carrier in the press is placed and then further material is added before the material together with the lining carrier - for example by hot pressing - is formed in its final state.
- the friction lining may be constructed in such a way that the friction lining layer in front of the lining carrier (front side) has a different material mixture than the friction lining layer behind the lining carrier (rear side).
- the friction lining layer in front of the lining carrier (front side) has the actual friction surface and the friction lining layer behind the lining carrier preferably does not serve as a friction surface.
- a material mixture which does not have to meet the high requirements with regard to the coefficient of friction can be used for the paving mixture behind the lining carrier (rear side).
- This material may also preferably have a lower density, so that the weight and the moment of inertia of the friction lining are reduced. For special purposes, a higher density on the back may be required. Likewise, the back can also be made with a higher proportion of the cheaper components.
- the back of the friction lining can also be thinner or thicker than the front.
- the lining carrier may be advantageous to supply the lining carrier to a surface treatment for better adhesion of the coating material.
- the friction lining is firmly connected to a friction lining carrier. This can already be done during the production of a pre-compact and / or during the hot pressing process.
- the lining carrier is baked with the friction lining. It is expedient if at least the side of the lining carrier connected to the lining is pretreated, for example etched and / or sandblasted. Furthermore, it may be expedient if the friction lining carrier is coated with an adhesive. In this context, reference is made to DE 44 31 642 B4 of the Applicant.
- a pressure plate for a friction clutch wherein the pressure plate has at least one against a friction lining arrangement of a clutch disc or the like pressable friction surface region and wherein the pressure plate is partially formed of a first material and wherein in the pressure plate at least partially provided a second material is that is in thermal contact with the first material.
- the invention proposes that the second material has a different thermal expansion compared to the first material, in particular a larger thermal expansion.
- the delay of the friction linings is not improved. If the lining carrier is only provided on one side with a friction layer, there may be delay if the friction layer and lining carrier do not have the same coefficients of thermal expansion, as is the case when the friction layer of friction material and the lining carrier are designed, for example, as a plate back. If the lining carrier is coated on both sides, as described above, and the friction layer and the further layer are made of different materials or if they are of different thickness, distortion may also occur.
- Object of the present invention is to propose a method for reducing the delay in friction linings, which include a lining carrier and at least one friction layer.
- the inventive method provides for the production of a friction lining, that at least one friction lining between two plates, which are designed as a positive mold and negative mold, is clamped.
- the friction lining is hardened in a tensioned state, so that the friction lining is thereby brought into a desired shape.
- the two plates are two conically shaped plates, which are designed as a positive mold and negative mold, whereby the friction lining has a desired conicity after curing.
- the two conically shaped plates, a conical bottom plate and an inverse-conical cover plate are designed as a positive mold and negative mold
- the two conically shaped plates are designed with a predetermined pitch with respect to their conicity.
- the friction lining is preferably designed such that it has a lining carrier and a
- Friction layer comprises.
- Advantage of the method is that thereby a reduction of the delay of friction linings, which include a friction layer and a lining carrier is achieved.
- conically designed separating plates are provided between the friction linings.
- the friction lining during curing at least temporarily a temperature above the glass transition temperature of the friction layer.
- an apparatus for producing a friction lining is also proposed. With this, the above-described method can be performed.
- the device has a clamping and hardening device.
- the clamping and hardening device has two plates (70,80), which are designed as a positive mold (80) and negative mold (70) for clamping and hardening at least one friction lining. As a result, the friction lining is brought into a desired shape.
- Friction linings 50 undergo one or more hardenings during manufacture. Such curing can take several hours and depending on the selected friction material at temperatures ranging from 250 degrees Celsius to 300 degrees Celsius
- the friction linings 50 braced during curing on a hardness stand 40 This can be done, for example, by means of a nut 10 which can move along the hardness stand 40 and a plate spring 30 and a cover 20. By rotating the nut 10, the plate spring 30 causes a force on the cover 20, which acts on the friction linings, which are located between the cover 20 and the foot of the hardstand 40.
- inverse conical means a shaping which behaves like a positive shape to a negative shape. If the conical bottom plate 80 were brought into contact with the inverse-conical cover plate 70-without a friction lining 50 between the two-sides, both mutually facing sides would touch substantially over the entire surface.
- the pot remains after curing. If the individual friction linings 50 are separated on the hardening stand 40 by, for example, also conical dividing plates 60, then so can by using such, accordingly potted dividers this effect can be supported.
- the conical separating plates 60 thus have a conical direction pointing in the direction of the cover plate 70 and an in the direction of the bottom plate 80 facing inverse-conical side in the sense of the above conceptual formation.
- the glass transition temperature of the friction layer is exceeded at least once during the curing.
- Carrier layer are executed to counteract, for example, shielding.
- the lining carrier on one side - as before - be provided with a friction layer, and on the other side also - as can be seen from the description of the prior art - another layer of cost only similar or identical material with the same or less or greater layer thickness.
- a friction lining with a friction layer and a further layer to a correspondingly adapted, conically configured device.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080026813.8A CN102472329B (zh) | 2009-07-23 | 2010-06-28 | 用于制造摩擦片的方法 |
DE112010003040T DE112010003040A5 (de) | 2009-07-23 | 2010-06-28 | Verfahren zur Herstellung eines Reibbelags |
ZA2011/08951A ZA201108951B (en) | 2009-07-23 | 2011-12-06 | Method for producing a friction lining |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009034396.2 | 2009-07-23 | ||
DE102009034396 | 2009-07-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011009428A1 true WO2011009428A1 (de) | 2011-01-27 |
Family
ID=42959303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2010/000749 WO2011009428A1 (de) | 2009-07-23 | 2010-06-28 | Verfahren zur herstellung eines reibbelags |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN102472329B (de) |
DE (2) | DE112010003040A5 (de) |
WO (1) | WO2011009428A1 (de) |
ZA (1) | ZA201108951B (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015206018A1 (de) | 2015-04-02 | 2016-10-06 | Schaeffler Technologies AG & Co. KG | Lamellenkupplung |
NL2016255B1 (en) * | 2016-02-12 | 2017-08-25 | C3 Sport S R O | Clutch friction member for a friction clutch and method of manufacturing the same. |
DE102018106609A1 (de) * | 2018-03-21 | 2019-09-26 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Verfahren zur Verringerung der Schirmung einer Radbremsscheibe für ein Schienenfahrzeug und Vorrichtung zur Durchführung des Verfahrens |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4431642A1 (de) * | 1993-09-16 | 1995-03-23 | Luk Lamellen & Kupplungsbau | Reibbelag |
DE19712203A1 (de) | 1996-03-27 | 1997-10-30 | Luk Lamellen & Kupplungsbau | Reibbelag |
DE10031635A1 (de) | 2000-06-29 | 2002-01-10 | Mannesmann Sachs Ag | Anpreßplatte für eine Reibungskupplung |
WO2003090994A1 (de) * | 2002-04-25 | 2003-11-06 | Tmd Friction Europe Gmbh | Verfahren zum herstellen eines harzgebundenen formteils |
-
2010
- 2010-06-28 WO PCT/DE2010/000749 patent/WO2011009428A1/de active Application Filing
- 2010-06-28 DE DE112010003040T patent/DE112010003040A5/de not_active Withdrawn
- 2010-06-28 DE DE102010025327A patent/DE102010025327A1/de not_active Withdrawn
- 2010-06-28 CN CN201080026813.8A patent/CN102472329B/zh not_active Expired - Fee Related
-
2011
- 2011-12-06 ZA ZA2011/08951A patent/ZA201108951B/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4431642A1 (de) * | 1993-09-16 | 1995-03-23 | Luk Lamellen & Kupplungsbau | Reibbelag |
DE4431642B4 (de) | 1993-09-16 | 2007-05-16 | Luk Lamellen & Kupplungsbau | Reibbelag |
DE19712203A1 (de) | 1996-03-27 | 1997-10-30 | Luk Lamellen & Kupplungsbau | Reibbelag |
DE10031635A1 (de) | 2000-06-29 | 2002-01-10 | Mannesmann Sachs Ag | Anpreßplatte für eine Reibungskupplung |
WO2003090994A1 (de) * | 2002-04-25 | 2003-11-06 | Tmd Friction Europe Gmbh | Verfahren zum herstellen eines harzgebundenen formteils |
Also Published As
Publication number | Publication date |
---|---|
DE102010025327A1 (de) | 2011-01-27 |
CN102472329B (zh) | 2014-06-04 |
ZA201108951B (en) | 2013-02-27 |
CN102472329A (zh) | 2012-05-23 |
DE112010003040A5 (de) | 2012-06-06 |
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