CN109562575A - The method for manufacturing friction facing - Google Patents
The method for manufacturing friction facing Download PDFInfo
- Publication number
- CN109562575A CN109562575A CN201780047420.7A CN201780047420A CN109562575A CN 109562575 A CN109562575 A CN 109562575A CN 201780047420 A CN201780047420 A CN 201780047420A CN 109562575 A CN109562575 A CN 109562575A
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- China
- Prior art keywords
- equal
- friction
- oversized dimensions
- friction facing
- composite material
- Prior art date
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- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000002783 friction material Substances 0.000 claims abstract description 48
- 239000002131 composite material Substances 0.000 claims abstract description 44
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 238000004132 cross linking Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 15
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000005060 rubber Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000010786 composite waste Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- JMHCCAYJTTWMCX-QWPJCUCISA-M sodium;(2s)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate;pentahydrate Chemical compound O.O.O.O.O.[Na+].IC1=CC(C[C@H](N)C([O-])=O)=CC(I)=C1OC1=CC(I)=C(O)C(I)=C1 JMHCCAYJTTWMCX-QWPJCUCISA-M 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000013528 metallic particle Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 238000011112 process operation Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Inorganic materials [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/545—Perforating, cutting or machining during or after moulding
-
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/16—Frictional elements, e.g. brake or clutch linings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
- Mechanical Operated Clutches (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
A method of manufacture friction facing, especially for brake disc or the clutch of motor vehicles, it include: the step of prefabricated component a) is provided, during the step, there is provided includes two opposite face (2a, the prefabricated component (2) made of the friction material in uncrosslinked state 2b), b) additional thickness step, during the step, additional thickness (the 4a of composite material, 4b) it is arranged on a face in two opposite faces of the prefabricated component made of the friction material in uncrosslinked state, the composite material includes the fiber of variable-length and cross section and the mixture of the thermosetting resin in uncrosslinked state, c) curing schedule, during the step, heating includes the prefabricated component made of the friction material in uncrosslinked state under the pressure for being greater than or equal to 50 bars and being less than or equal to 300 bars The period being greater than or equal to 1 minute and less than or equal to 15 minutes is reached to the temperature more than or equal to 180 DEG C and less than or equal to 210 DEG C with the component of additional thickness, it include the prefabricated component (6) made of the friction material in cross-linked state and the additional thickness (8a in cross-linked state to obtain, crosslinking component (10) 8b), d) procedure of processing, during the step, at least one face of processing crosslinking component, it is in the additional thickness of cross-linked state to remove, and obtain parallel opposite face (14a there are two tools, the friction facing (14) in cross-linked state 14b).
Description
Technical field
The present invention relates to a kind of methods for manufacturing friction facing, are especially used for the clutch of brake disc or motor vehicles,
And further relate to the friction facing obtained by this method.
Background technique
During the friction facing for preparing the clutch for brake disc or motor vehicles, solid material is in temperature and pressure
Under be compressed to form hardening element.Due to the creep of resin, existing material (such as fiber and powder) aspect ratio and
The design of mold, the thickness change of the hardening element after molding is between 0.1mm and 0.3mm.
Therefore, enterprising in one of material and/or two faces for parallel surface needed for obtaining clutch or braking system
Row process operation.The process operation generates the material loss of 10% to 25% weight, which is related to manufacture for motor-driven
The friction facing of vehicular clutch or brake pad.In the material of processing in the case where complicated and valuableness, this friction loss material
Also represent economic loss.
Summary of the invention
The object of the present invention is to provide a kind of method, this method can reduce the loss of friction material in manufacturing process.
Therefore, the present invention provides a kind of method for manufacturing friction facing, especially for brake disc or motor vehicles from
Clutch, comprising:
The stage of prefabricated component is provided, at this stage during, provide including two opposite faces by uncrosslinked state
Prefabricated component made of friction material,
Oversized dimensions (oversize) stage, at this stage during, the oversized dimensions made of composite material setting by
On a face in two opposite faces of prefabricated component made of the friction material in uncrosslinked state, the composite material includes
The mixture of the fiber and the thermosetting resin in uncrosslinked state in variable-length and section,
Cure stage, at this stage during, be greater than or equal to 50 bars and less than or equal under 300 bars of pressure with big
In or equal to 180 DEG C and less than or equal to 210 DEG C temperature heating include in uncrosslinked state friction material made of
Prefabricated component and the component of oversized dimensions reach the period more than or equal to 1 minute and less than or equal to 15 minutes, to be included
The crosslinking component of prefabricated component and the oversized dimensions in cross-linked state made of the friction material in cross-linked state,
In the process segment, period, at least one face of processing crosslinking component are in cross-linked state to remove at this stage
Oversized dimensions, and obtain in cross-linked state and opposite face friction facing parallel to each other.
Advantageously, the damage that the oversized dimensions made of composite material allow to reduce friction material in manufacturing process is provided
It loses.
It according to the method for the present invention can also include following one or more features, individually consider or according to all technologies
Upper possible combination considers:
In the process segment, removal is crosslinked the 10% to 30% of the thickness of component；And/or
In the oversized dimensions in cross-linked state that the material of process segment removal includes at least 80% weight percent
Composite material；And/or
The composite material of oversized dimensions includes the mixed of fiber of the size more than or equal to 50 μm and less than or equal to 300 μm
Close object；And/or
The composite material of oversized dimensions includes the mixture of particle of the diameter less than 50 μm；And/or
The composite material of oversized dimensions includes the fiber and/or inorganic in nature of at least 25% weight and at most 45% weight
Powder；And/or
The composite material of oversized dimensions includes that the inertia of at least organic nature of 20% weight and at most 35% weight is filled out
Material；And/or
The composite material of oversized dimensions includes at least one wetting agent, especially water, tackifier or PVA, i.e., poly- acetic acid second
Enester；And/or
The composite material of oversized dimensions includes at least one living polymer, especially phenolic resin, melamine/first
Urea formaldehyde and/or rubber；And/or
The composite material of oversized dimensions includes the living polymer of at least 30% weight and at most 50% weight；And/or
The composite material of oversized dimensions is at least partly generated by thermosetting property composite waste, especially from friction facing
Processing or its grinding dust；And/or
The composite material of oversized dimensions includes the metallic particles of at most 10% weight, preferably up to 5% weight；And/or
Before on a face of the prefabricated component for being placed on friction material, preforming oversized dimensions, especially by
It is compressed under low pressure；And/or
The prefabricated component of friction material is located in the table of support plate during cure stage by adhesive combination before fixed
On face；And/or
During the oversized dimensions stage, oversized dimensions are arranged on two opposite faces of the prefabricated component of friction material.
Finally, the present invention relates to one kind for example by the friction facing obtained according to the method for the present invention, be especially used for
The clutch of brake disc or motor vehicles.
The friction facing may include following one or more features, individually consider or according to all technically possible groups
It closes and considers:
Liner includes the concentration gradient successively decreased with the fiber of variable-length, section and chemical property, from friction facing
Two opposite faces in one beginning；And/or
The liner includes first area and second area, and first area includes having variable-length, section and chemical property
Fiber, second area do not have variable-length, section and chemical property fiber, two phases of the first area from friction facing
15% thickness for extending and having the overall thickness less than or equal to friction facing in opposite, second area has big
In or equal to friction facing overall thickness 70% thickness.First area can also include composite material residue, tie above
It closes oversized dimensions its ingredient is described, second area can not have composite material residue.
Detailed description of the invention
Acquisition is best understood from of the invention according to being described below, which only passes through instruction and provide, and does not have limitation
The purpose of the invention, and have the following drawings:
- Fig. 1 shows different phase according to the method for the present invention,
Fig. 2 shows the prefabricated component made of the friction material in uncrosslinked state,
- Fig. 3 shows the prefabricated component made of the friction material in uncrosslinked state, and by being in uncrosslinked state
Composite material made of oversized dimensions,
- Fig. 4 shows crosslinking component comprising in cross-linked state friction material made of prefabricated component and in hand over
The oversized dimensions of connection state,
- Fig. 5 shows the identical crosslinking component and machining area,
- Fig. 6 shows prefabricated component and support plate made of the friction material in uncrosslinked state,
- Fig. 7 shows the friction facing by obtaining according to the method for the present invention.
Specific embodiment
The present invention relates to a kind of methods for manufacturing friction facing, it is especially useful in the clutch of brake disc or motor vehicles, until
Include: less
The stage S1 of prefabricated component is provided,
Oversized dimensions stage S2,
Cure stage S3,
Process segment S4.
Different phase according to the method for the present invention is shown in Fig. 1.
Friction facing is the element with another rubs, and the physics having and mechanical property can bear height
Machinery and thermal stress.The ingredient of friction facing, shape and size are conclusive.
As shown in Fig. 2, providing and being made of the friction material in uncrosslinked state during the stage S1 for providing prefabricated component
Prefabricated component 2.There are two opposite face 2a and 2b for the tool of the prefabricated component made of the friction material in uncrosslinked state.This is pre-
Product can be ring-shaped.Friction material for friction facing can be for example including fiber and/or thermosetting resin and/or rubber
Glue and/or wire and/or filler.
Fiber can be arranged to multiple thread strands, that is to say, that one group of each silk is orientated on the same axis, continuously or is cut into
Uniform length is greater than or equal to 2mm and less than 6mm for cutting stock.
Thermosetting resin can be such as melamine/formaldehyde resin and/or phenol/formaldehyde resin.
Rubber can be such as SBR i.e. styrene/butadiene rubbers and/or NBR i.e. nitrile/butadiene rubber.
Wire can have uniform section, is greater than or is equal to 100 μm and is less than or equal to 300 μm.
Filler can be for example including BaSO4And/or CaCO3And/or carbon-based filler.
The aforesaid ingredients of friction material are merely given as examples, and any ingredient well known by persons skilled in the art can fit
For application of the invention.
In this case, friction material is in " non-crosslinked " state, because the thermosetting resin for constituting it is not crosslinking
's.These thermosetting resins can be crosslinked by solidification or hot compression.
Determine the amount of the friction material in uncrosslinked state, and it is thus determined that by the friction material in uncrosslinked state
The thickness of manufactured prefabricated component so that the thickness after solidifying than thickness needed for friction facing greatly less than 5%, such as less than 3%.
During oversized dimensions stage S2, the setting of oversized dimensions 4a or 4b made of composite material is by non-crosslinked
On at least one of two opposite faces of prefabricated component made of the friction material of state.
According to the embodiment of Fig. 3, oversized dimensions 4a and 4b be arranged in the prefabricated component 2 of friction material two opposite face 2a and
On 2b.The embodiment is not limiting；It is excessive to be entirely possible to deposition on one only in two opposite faces of prefabricated component
Size.
The composite material of oversized dimensions 4a or 4b include the fiber of variable-length and variable cross section and in uncrosslinked state
Thermosetting resin mixture.
Fiber can be by being isolated from each other and the silk of random orientation forms in space.
The composite material of oversized dimensions may also include the particle of inorganic in nature and/or the inertia of powder and/or organic nature
The mixture of filler and/or wetting agent and/or living polymer and/or metallic particles.
For example, fiber can have the variable size for more than or equal to 50 μm and being less than or equal to 300 μm.
The particle of mixture can have the diameter less than 50 μm.
The composite material of oversized dimensions can fiber and/or nothing for example including at least 25% weight and at most 45% weight
The powder of machine property.
The composite material of oversized dimensions can be for example including at least organic nature of 20% weight and at most 35% weight
Inert filler.
Wetting agent may, for example, be water and/or tackifier and/or PVA.
Living polymer may, for example, be phenolic resin and/or melamine/formaldehyde resin and/or rubber.
The presence of rubber allows to obtain elastic behavior between layers.Advantageously, this allows to reduce and may cause
The stress of thickness deformation and the warpage for preventing composite material.
The composite material of oversized dimensions can be for example including the living polymer of at least 30% weight and at most 50% weight.
The composite material of oversized dimensions can be for example including the metallic particles of at most 10% weight, preferably up to 5% weight.
According to another embodiment, in one or two for being placed on the prefabricated component of the friction material in uncrosslinked state
Before on opposite face, preforming oversized dimensions, especially by compressing under low pressure.
Once the setting of the oversized dimensions made of the composite material in uncrosslinked state is pre- made of friction material
On at least one of two opposite faces of product, then the component is crosslinked during cure stage S3, also referred to as in pressure or heat
Pressure solidification.
The cure stage includes under the pressure for being greater than or equal to 50 bars and being less than or equal to 300 bars to be greater than or equal to
180 DEG C and less than or equal to 210 DEG C temperature heating include in uncrosslinked state friction material made of 2 He of prefabricated component
The component of one or more oversized dimensions 4a and/or 4b reaches the period more than or equal to 1 minute and less than or equal to 15 minutes,
To obtain the crosslinking for including prefabricated component and the oversized dimensions in cross-linked state made of the friction material in cross-linked state
Component.
Before cure stage, the prefabricated component 2 made of the friction material in uncrosslinked state and one or more mistakes
Large scale 4a and/or 4b can be positioned at suitable for hot compression and be known to the skilled in the art in mold.
Program curing is only provided by example, and it is well known by persons skilled in the art make thermosetting resin crosslinking become can
Any curing method or equipment of energy may be adapted to application of the invention.
Fig. 4 indicates crosslinking component 10 comprising the prefabricated component 6 and prefabricated made of the friction material in cross-linked state
Two in cross-linked state oversized dimensions 8a and 8b on two opposite faces of part 6.
The embodiment is not limiting；It is entirely possible to deposit on one only in two opposite faces of prefabricated component
Large scale.
During cure stage S3, there is inhomogeneities at the surface of two opposite faces 8a and 8b of crosslinking component 10.
These inhomogeneities can be 0.1 to 0.3mm magnitude thickness change, and it is not shown in FIG. 4.
Preferably, the thickness change of friction facing is very small, and their opposite face is parallel to each other, in order to provide most
The satisfactory operation of finished product.
In order to eliminate surface heterogeneity, process segment S4 is executed.During the process segment, processing crosslinking component 10 is extremely
A few face is in one or more oversized dimensions 8a and/or 8b of cross-linked state to remove, and obtains and be in cross-linked state
And the friction facing that opposite face is parallel to each other.Fig. 5 shows crosslinking component 10 and machining area 12.
The composite material of oversized dimensions does not have physical property identical with friction material and identical mechanical strength；Cause
This, preferably removes oversized dimensions, so that composite material is no longer present in friction facing rather than trace (trace) shape
State.For this purpose, the process segment can remove the 10% to 30% of the thickness of crosslinking component.
The material removed during the process segment can be for example including the composite material of the oversized dimensions in cross-linked state
At least 80% weight.
Process segment S4 can remove oversized dimensions until the interface between oversized dimensions and friction material.In Fig. 5
Shown in machining area 12 in cross-linked state friction material 6 on slightly extend.It therefore, can be with during the process segment
A part of friction material is being removed with the interface of oversized dimensions.
According to preferred embodiment, the composite material of oversized dimensions 4 can be generated at least partly by thermosetting property composite waste, special
It is not the dust of processing or its grinding from friction facing.Therefore, the ingredient of the friction material of previous friction facing can portion
Ground is divided to terminate in the composite material of oversized dimensions.
As described above, the process segment allows to obtain the not liner of thickness change and with parallel to each other opposite
Face.This processing generates waste material, such as processing dust.
This processing dust is made of powder, small fiber, and constitutes complicated mixture, is no longer originated from it
The mechanical performance of raw material.
Currently, the composite material with organic substrate is by being overlapped, pyrolysis and Density Separation process are recovered.
However, the product from these processing is difficult to restore to be worth and handle itself with high-energy cost.
Processing dust is reused in the production of compound oversized dimensions material this have the advantage that the life from friction facing
Waste material is recycled in production, improves the control of product life cycle and reduces brought economic loss.
In addition, as then by processing removal oversized dimensions, composite material will not negatively affect friction facing
The ingredient of friction material or its mechanical performance, and will be only present in liner in the form of trace.
According to another embodiment, before the prefabricated component of friction material is fixed during cure stage S3 by adhesive combination
It is located on the surface of support plate.
Fig. 6 illustrates the embodiment by indicating prefabricated component 2 and the support plate 13 of the friction material in uncrosslinked state.
In this embodiment, oversized dimensions are arranged on the face of prefabricated component 2 contacted with support plate 16.Then added on the same face
Work stage S3.
Fig. 7 indicates the friction facing 14 by obtaining according to the method for the present invention.The friction facing does not have on the surface thereof
Inhomogeneities, and there is parallel opposite face 14a and 14b.
Friction facing is made of the friction material in cross-linked state.However, the fiber of variable-length and variable cross section is residual
Excess can reside in the resinous substrates of lining surface.
Composite material of the fiber of these variable-lengths and variable cross section from one or more oversized dimensions, friction material
It is made of in itself the fiber of even length.The presence of this residue be by during cure stage S3 by compound
Reduce the migration of the fiber of size caused by one or more oversized dimensions made of material to explain.
Friction facing 14 can show the concentration of the fiber of variable-length, variable cross section and varying chemical property successively decreased
Gradient, until its center since one in two opposite face 14a and 14b.
Friction facing 14 for example may include first area and second area, and first area includes oversized dimensions composite material
Residue, especially with the fiber of variable-length and diameter, second area is without oversized dimensions composite material residue.
It is less than or equal to for example, first area can extend and be had from one in two opposite faces of friction facing
15% thickness of the overall thickness of friction facing, second area are can have in itself more than or equal to friction facing
70% thickness of overall thickness.
During manufacturing process, when on two opposite faces that the prefabricated component made of friction material is arranged in oversized dimensions
When, friction facing 14 includes then two regions, the two regions include residue and two opposite face courts from friction facing
The heart extends thereto.There is no the third region of residue to be located at the center of friction facing.
The present invention is described using the embodiment presented in attached drawing above, without limiting the present general inventive concept.
After introspecting difference embodiment shown in present patent application, those skilled in the art oneself can be mentioned
Many other modifications and variations out.These embodiments are provided by example, it is not intended to be limited the scope of the invention, this hair
Bright range is only determined by following claim.
In the claims, word " comprising " is not excluded for other elements or stage, and indefinite article "a" or "an"
Use be not excluded for it is multiple.The simple fact of different characteristic is listed in complementary claim, and be not offered as can be advantageous
Ground uses the combination of these features.Finally, any appended drawing reference used in claim is not necessarily to be construed as to model of the present invention
The limitation enclosed.
Claims (11)
1. a kind of method for manufacturing friction facing, the friction facing are especially the clutch for being used for brake disc or motor vehicles, should
Method includes:
A) stage of prefabricated component is provided, at this stage during, provide including two opposite faces by rubbing in uncrosslinked state
Prefabricated component made of material is wiped,
B) the oversized dimensions stage, at this stage period, the setting of the oversized dimensions made of composite material is by being in non-crosslinked shape
On a face in two opposite faces of prefabricated component made of the friction material of state, the composite material includes variable-length and cuts
The mixture of the fiber in face and the thermosetting resin in uncrosslinked state,
C) cure stage, at this stage during, be greater than or equal to 50 bars and less than or equal under 300 bars of pressure to be greater than or
It include being in prefabricated made of the friction material of uncrosslinked state equal to 180 DEG C and less than or equal to the heating of 210 DEG C of temperature
Part and the component of oversized dimensions, which are reached, more than or equal to 1 minute and is less than or equal to 15 minutes periods, with obtain include by
The crosslinking component of the prefabricated component made of the friction material of cross-linked state and the oversized dimensions in cross-linked state,
D) process segment, period, at least one face of processing crosslinking component are in the mistake of cross-linked state to remove at this stage
Large scale, and obtain in cross-linked state and opposite face friction facing parallel to each other.
2. the method for claim 1, wherein in the process segment, remove the 10% of the thickness of the crosslinking component to
30%.
3. method as described in any one of the preceding claims, wherein the composite material of the oversized dimensions includes that size is big
In or equal to 50 μm and less than or equal to the mixture of 300 μm of fiber.
4. method as described in any one of the preceding claims, wherein the composite material of the oversized dimensions includes at least
The powder of the fiber and/or inorganic in nature of 25% weight and at most 45% weight.
5. method as described in any one of the preceding claims, wherein the composite material of the oversized dimensions includes at least one
Kind living polymer, especially phenolic resin, melamine/formaldehyde resin and/or rubber.
6. method as described in any one of the preceding claims, wherein the composite material of the oversized dimensions includes at least
The living polymer of 30% weight and at most 50% weight.
7. method as described in any one of the preceding claims, wherein the composite material of the oversized dimensions is at least partly
It is generated by thermosetting property composite waste, especially from the dust of the processing of friction facing or its grinding.
8. method as described in any one of the preceding claims, wherein the prefabricated component of the friction material is in the cure stage phase
Between by adhesive combine it is fixed before be located on the surface of support plate.
9. the method as described in any one of claims 1 to 7, wherein during the oversized dimensions stage, oversized dimensions are set
It sets on two opposite faces of the prefabricated component of the friction material.
10. a kind of friction facing, the concentration gradient of the fiber with variable-length and variable cross section successively decreased, from friction facing
A beginning in two opposite faces.
11. the friction facing as described in previous claim, has first area and second area, the first area includes tool
There is the fiber of variable-length, section and chemical property, the second area does not have the fibre of variable-length, section and chemical property
Dimension, the first area extend from one in two opposite faces of friction facing and have less than or equal to friction facing
15% thickness of overall thickness, the second area have 70% thickness of the overall thickness more than or equal to friction facing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1656222A FR3053273B1 (en) | 2016-06-30 | 2016-06-30 | METHOD FOR MANUFACTURING A FRICTION TRIM |
| FR1656222 | 2016-06-30 | ||
| PCT/FR2017/051708 WO2018002508A1 (en) | 2016-06-30 | 2017-06-27 | Method for manufacturing a friction lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109562575A true CN109562575A (en) | 2019-04-02 |
| CN109562575B CN109562575B (en) | 2023-02-17 |
Family
ID=57348800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780047420.7A Active CN109562575B (en) | 2016-06-30 | 2017-06-27 | Method for producing friction lining |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR20190025669A (en) |
| CN (1) | CN109562575B (en) |
| FR (1) | FR3053273B1 (en) |
| WO (1) | WO2018002508A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4388423A (en) * | 1981-11-02 | 1983-06-14 | Glennco Trust | Friction lining material |
| US20090169836A1 (en) * | 2007-12-26 | 2009-07-02 | Christopher Michael Thomas | Polymer bonded web friction and anti-friction composites |
-
2016
- 2016-06-30 FR FR1656222A patent/FR3053273B1/en active Active
-
2017
- 2017-06-27 CN CN201780047420.7A patent/CN109562575B/en active Active
- 2017-06-27 KR KR1020197002994A patent/KR20190025669A/en unknown
- 2017-06-27 WO PCT/FR2017/051708 patent/WO2018002508A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4388423A (en) * | 1981-11-02 | 1983-06-14 | Glennco Trust | Friction lining material |
| US20090169836A1 (en) * | 2007-12-26 | 2009-07-02 | Christopher Michael Thomas | Polymer bonded web friction and anti-friction composites |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109562575B (en) | 2023-02-17 |
| KR20190025669A (en) | 2019-03-11 |
| FR3053273B1 (en) | 2018-08-03 |
| FR3053273A1 (en) | 2018-01-05 |
| WO2018002508A1 (en) | 2018-01-04 |
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