CN103671654A - Method of manufacturing a friction lining and friction lining - Google Patents
Method of manufacturing a friction lining and friction lining Download PDFInfo
- Publication number
- CN103671654A CN103671654A CN201310412397.0A CN201310412397A CN103671654A CN 103671654 A CN103671654 A CN 103671654A CN 201310412397 A CN201310412397 A CN 201310412397A CN 103671654 A CN103671654 A CN 103671654A
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- Prior art keywords
- friction
- cure step
- friction facing
- medium material
- suo shu
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 52
- 230000003746 surface roughness Effects 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 29
- 208000034189 Sclerosis Diseases 0.000 claims description 8
- 230000005670 electromagnetic radiation Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 description 16
- 230000002349 favourable effect Effects 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 235000019592 roughness Nutrition 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Images
Classifications
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/0266—Local curing
-
- 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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/16—Surface shaping of articles, e.g. embossing; Apparatus therefor by wave energy or particle radiation, e.g. infrared heating
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- 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
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- 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
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
- B29C2035/046—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames dried air
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Toxicology (AREA)
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention relates to a method of manufacturing a friction lining (14), in particular for friction pairs used in wet operation, comprising the following steps: firstly, there is provided a raw material of lining (14) containing a curable resin. Then, one proceeds to a first curing step in which the raw material of lining is partially cured so as to obtain an intermediate material (142). Then, one proceeds to a second curing step in which the intermediate material (142) is further cured, the second curing step being carried out unevenly over the surface of the friction lining. The invention also relates to a friction lining, in particular for friction pairs used in wet operation, comprising a support (40) and a friction lining (14) disposed thereon, a single material, characterized in that the surface roughness of the friction lining is inhomogeneous.
Description
Technical field
The present invention relates to a kind of method and this friction facing for the manufacture of being particularly useful for the friction facing of the wet friction pair moving.
Background technique
The friction pair of wet operation is especially present in the synchronizing ring and clutch for the speed changer of Motor Vehicle, and wherein clutch plate moves in oil groove.In this friction pair, conventionally use friction facing, the component that described friction facing has comprised rubbing action (for example carbon fiber), the component of described rubbing action is embedded in matrix resin.Resin can harden in two-stage, and wherein resin, by partially hardened in the first cure step, in so-called B state, and further hardens in the second cure step.The first cure step can be carried out through oven by liner raw material.The second cure step can be carried out in hot pressing, and in described hot pressing, subsclerotic liner material is brought to the end-state of expectation, for example, be pressed into default thickness.
This friction facing must be in operation and meet different requirements, and these requirements are partly contradictory.Different rotating speeds phase coadaptation rapidly for the assembly of observed friction pair, the smooth as far as possible surface of friction pair is favourable, because smooth surface contributes to a large amount of point of contact of liner face and friction fit face and then contributes to higher friction factor level.On the contrary, if consider the especially cold switching characteristic in synchronizing ring, aspect friction factor setting fast, higher surface roughness is favourable; Coarse surface has a plurality of liners tip, and described liner tip is more easily worn out and is present in the oil film between rubbing surface and contributes to oil extraction well from friction gap.These self-contradictory requirements are also observed in chart shown in Figure 1, and curve 1 represents the variation of the friction factor in cold test relevant to surface roughness Ra at this.Curve 2 is illustrated in friction facing operation and has the average friction factor in a plurality of cycles of the surface pressure raising step by step.
From chart, observe, for good cold switching characteristic, high surface roughness is favourable, and for the high friction factor under normal running (operation) conditions, expects little surface roughness.So far, when using unified, continuous friction material, surface roughness must be adjusted to, make to realize the matched well between normal operating and friction factor in cold switching characteristic.Additionally, conventionally by introducing the groove image of macroscopical physical dimension, attempt, make the cold cut of oil extraction or liner change characteristic optimization.
Summary of the invention
The object of the invention is to, propose a kind of method for the manufacture of friction facing and a kind of friction facing, wherein not only aspect normal operating friction factor, and aspect cold switching characteristic, drawing improved performance.
In order to realize described object, a kind of method for the manufacture of being particularly useful for the friction plate of the wet friction pair moving is proposed according to the present invention, wherein use following step: provide the liner that comprises the resin that can harden raw material.Carry out the first cure step, in described the first cure step, the sclerosis of liner raw material, makes to obtain medium material.Subsequently, carry out the second cure step, in described the second cure step, medium material further hardens, and wherein the second cure step is implemented unevenly on the face of friction facing.Obtain in this way friction facing, described friction facing is integrated with different hardening states." different sclerosis " represent, in the friction facing of observing, portion's section with the first hardening state is adjacent to portion's section with the second hardening state, and wherein different portion's sections is a part for continuous friction facing.Nonuniformity aspect hardening state for example can be followed default pattern.
The present invention is based on following knowledge: the roughness of hardening of resin degree effects on surface impacts.Less hardenability causes relatively smooth surface, and described relatively smooth surface causes high friction factor.High hardenability causes coarse surface structure, and described coarse surface structure causes extraordinary cold performance of handoffs.According to the present invention, described knowledge is used for: by friction facing, differently hardened, in same friction facing, realize abreast different roughness.In this way, on friction facing, draw the surface section that there is high roughness and then contribute to good cold performance of handoffs and there is low surface roughness and then guarantee the surface section of higher friction factor level.By the second cure step, only for a surperficial part for medium material, carry out, can realize the inhomogeneous hardening state of friction facing.Therefore in this case, a part for friction facing remains in the hardening state (B state) producing after the first cure step, and only second portion further hardens.As an alternative, also possible that, the second cure step is carried out with varying strength for the surperficial different portions section of medium material.So, this hardening state for example producing after the first cure step at resin is especially applicable to when insufficient, to produce the liner characteristic of expectation.
The second cure step is especially, by Energy transfer, to medium material, the energy density that wherein acts on medium material is inhomogeneous.Energy for example can be carried with the form of electromagnetic radiation, especially with the form of infrared radiation.Also possible that, medium material loads by hot air.In principle, also can consider to use electron beam.In this case, the safety measure conventionally improving is essential, because observe, special ray protection is stipulated and shielding is necessary.
According to a preferred form of implementation of the present invention, use template (Schablone), to produce nonuniformity in the second cure step.By template, can, with an extremely little part that expends shielding medium material, the energy of carrying only be exerted an influence to remaining portion section.
A preferred form of implementation according to the present invention is provided with, and liner material is hot pressed into unified lining thickness.This has guaranteed, although hardening state is different, friction facing has unified, continuous constant altitude.
Liner material is (but anisotropically) sclerosis completely, is cut and is applied on carrier subsequently.In this case, liner material strip ground or banded making.Friction facing is cut and is for example sticked in synchronizing ring carrier subsequently from liner material bar.The advantage of described method is, can for liner material, process by continuous manufacture process, produces thus low manufacture cost.
As an alternative, can propose, by medium material cutting, be applied on carrier and subsequently harden into friction facing in the second cure step.In described manufacture method, can guarantee, in each independent product, for example, in each synchronizing ring, portion's section with the friction facing of different hardenabilities exists with mutual same percentage at identical position and also.
According to the present invention, a kind of friction facing that is particularly useful for the friction pair of wet operation is also proposed, described friction facing has carrier and settles the friction facing of being made by homogenous material thereon, and wherein the surface roughness of friction facing is inhomogeneous.About the advantage drawing, with reference to above-mentioned elaboration.
Accompanying drawing explanation
Hereinafter, according to different form of implementation illustrated in the accompanying drawings, the present invention is described.Shown in the drawings:
Fig. 1 illustrates the chart of different surface roughnesses on the impact of the different qualities of friction facing;
Fig. 2 schematically illustrates for the manufacture of according to the method for friction facing of the present invention;
Fig. 3 schematically illustrates the design proposal of alternative of method step of the method for Fig. 2; And
Fig. 4 illustrates another design proposal of method.
Embodiment
In Fig. 2, by reference character 10, base plate is shown, can be by means of coating equipment 12 by liner raw material 14
1be applied on described base plate.The component that described liner raw material have comprised rubbing action, for example carbon fiber, and the resin that can harden.
Liner raw material 14 are through oven 16 on base plate 10, and in described oven, resin, in so-called B state, namely partly hardens.With raw material relatively, described raw material needn't be applied on base plate, but can provide in other mode and partially hardened then.
Through after oven 16, on base plate 10, there is medium material 14
2, described medium material 14
2stand subsequently the second cure step.To this, by the Energy transfer of the form with infrared radiation to medium material 14
2.For this purpose, at medium material 14
2on be provided with Infrared radiation souirce 18, described Infrared radiation souirce can produce infrared radiation, described infrared radiation acts on medium material 14
2on.At Infrared radiation souirce 18 and medium material 14
2between be provided with template or dividing plate 20, in the embodiment that described template or dividing plate illustrate herein by side by side, the directed mask tape 22 that is parallel to each other forms.Mask tape 22 is parallel to the moving direction of base plate 10 extends, the infrared radiation that makes to be exported by Infrared radiation souirce 18 can be banded be only applied to medium material 14
2the not portion's section being hidden by mask tape 22 on.
After finishing, the second cure step there is liner material 14
3, there is different hardening states in band shape wherein abreast.Liner material 14
3in the portion's section by illuminated with infrared radiation, for example, at band A(, see Fig. 1 c) in in portion's section of infrared radiation by means of mask tape 22 covered band shapes therein, compare sclerosis more strongly.Therefore due to different hardenabilities, also draw liner material 14
3different surface roughnesses.Portion's section compared with lowland sclerosis has less surface roughness, and portion's section of sclerosis has higher surface roughness strongly simultaneously.
The alternative scheme of Infrared radiation souirce shown in figure 2 18 shown in Figure 3, carries out the second cure step by described alternative scheme.According to applying hot air H in the design proposal of Fig. 3, by means of described hot air by Energy transfer to medium material 14
2, so that portion's segmentation ground continues sclerosis from the resin of B state.At this, hot air H is flowed to distributor 30, described hot air is overflowed by nozzle 32 banded, that space arranges from described distributor.In this way, in the definite Duan Zhongyu of portion of geometrical shape portion's section aside, compare more Energy transfer to medium material 14
2, resin is further hardened at that.
In the manufacture method shown in Fig. 2 and 3, liner material 14
3in continuous process, manufacture.So, friction facing can from obtain in this way, with the shape of expectation, cut and be applied on carrier strip or banded liner material, be for example applied in synchronizing ring.When expectation, can also hot pressing liner material, to set up specific lining thickness.This can carry out before or after cutting apart liner material and also after liner material is applied on carrier.
In the manufacture method shown in Fig. 2 and Fig. 3, due at base plate 10 with carry out therein relatively moving between the website of the second cure step, draw the nonuniformity of the belt like shape aspect surface roughness and hardening state.In other words, in the direction of the movement direction transverse to base plate 10, observe, hardening state is inhomogeneous, because have portion's section of higher hardening state, replaces with portion's section with lower hardening state.But, when expending when higher a little, even in the situation that use mobile in a longitudinal direction base plate 10, also can realize the complicated pattern about different hardening states.For example, can use columniform shield plate, Infrared radiation souirce and described shield plate are set within described shield plate so that its surface velocity speed consistent with the travelling speed of carrier 10 is rotated.Thus, the different hardenability existing in can being created in pattern in continuous process, described pattern is default by the portion of leaving a blank being arranged in pattern in columniform dividing plate.
The manufacture method of alternative is schematically shown in Fig. 4.In described manufacture method, using liner material as medium material 14
2be applied on carrier 40, and by medium material 14
2after being placed on carrier 40, carry out the second cure step.For this purpose, the source of radiation 50 schematically showing in this use, the radiation of described source of radiation acts on liner material according to default pattern (referring to example pattern 52,54,56).To this, also can use dividing plate.In this way, for each friction facing, realize and arrange in the same manner all the time portion's section with different hardenabilities.
As long as expectation, even according in the manufacture method of Fig. 4, can carry out heat-press step after the second cure step finishes.
Claims (15)
1. one kind for using following step manufacture to be particularly useful for the method for friction facing (14) of the friction pair of wet operation:
-the liner raw material (14 that comprise the resin that can harden are provided
1),
-carry out the first cure step, in described the first cure step, described liner raw material, by partially hardened, make to obtain medium material (14
2),
-carry out the second cure step, in described the second cure step, described medium material (14
2) being continued sclerosis, wherein said the second cure step is implemented unevenly on the face of described friction facing.
2. method according to claim 1, is characterized in that, described the second cure step is only for described medium material (14
2) a surperficial part carry out.
3. method according to claim 1, is characterized in that, described the second cure step is for described medium material (14
2) surperficial different portions section with varying strength, carry out.
4. according to the method one of the claims Suo Shu, it is characterized in that, nonuniformity is followed pattern.
5. according to the method one of the claims Suo Shu, it is characterized in that, described the second cure step is Energy transfer to described medium material (14
2), wherein act on described medium material (14
2) energy density be inhomogeneous.
6. method according to claim 5, is characterized in that, described medium material (14
2) by electromagnetic radiation irradiation, especially by IR radiation exposure.
7. method according to claim 5, is characterized in that, described medium material (14
2) by hot air, load.
8. according to the method one of the claims Suo Shu, it is characterized in that, use template (20), to produce nonuniformity in described the second cure step.
9. according to the method one of the claims Suo Shu, it is characterized in that described liner material (14
3) be hot pressed into unified lining thickness.
10. according to the method one of the claims Suo Shu, it is characterized in that described liner material (14
3) fully hardened, cut and be applied to subsequently on carrier (40).
11. according to the method one of claim 1 to 9 Suo Shu, it is characterized in that, described medium material (14
2) cut, be applied to carrier (40) above and in the second cure step, harden into friction facing subsequently.
12. 1 kinds of friction facings, are particularly useful for the wet friction pair moving, and described friction facing has carrier (40) and settles the friction facing of being made by unique material (14) thereon, it is characterized in that, the surface roughness of described friction facing is inhomogeneous.
13. friction facings according to claim 12, is characterized in that, described friction facing (14) has inhomogeneous hardening state.
14. according to the friction facing described in claim 12 or 13, it is characterized in that, nonuniformity is followed default pattern.
15. according to claim 12 to the friction facing one of 14 described, it is characterized in that, has the face region limiting, surface roughness in the face region of described restriction with in face region adjacent, compare larger.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012017874.3 | 2012-09-11 | ||
| DE201210017874 DE102012017874A1 (en) | 2012-09-11 | 2012-09-11 | Method for producing a friction lining and friction lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671654A true CN103671654A (en) | 2014-03-26 |
| CN103671654B CN103671654B (en) | 2019-06-28 |
Family
ID=50158367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310412397.0A Expired - Fee Related CN103671654B (en) | 2012-09-11 | 2013-09-11 | For manufacturing the method and friction facing of friction facing |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103671654B (en) |
| DE (1) | DE102012017874A1 (en) |
| FR (1) | FR2995377B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108138861A (en) * | 2015-10-21 | 2018-06-08 | 舍弗勒技术股份两合公司 | Method for producing a clutch disk pack for a wet friction clutch and friction clutch |
| CN108368904A (en) * | 2015-12-17 | 2018-08-03 | 舍弗勒技术股份两合公司 | Method for pretreating friction linings |
| CN110753800A (en) * | 2017-06-16 | 2020-02-04 | 三菱电机株式会社 | Brake lining |
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2012
- 2012-09-11 DE DE201210017874 patent/DE102012017874A1/en not_active Withdrawn
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2013
- 2013-09-05 FR FR1358495A patent/FR2995377B1/en not_active Expired - Fee Related
- 2013-09-11 CN CN201310412397.0A patent/CN103671654B/en not_active Expired - Fee Related
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108138861A (en) * | 2015-10-21 | 2018-06-08 | 舍弗勒技术股份两合公司 | Method for producing a clutch disk pack for a wet friction clutch and friction clutch |
| CN108368904A (en) * | 2015-12-17 | 2018-08-03 | 舍弗勒技术股份两合公司 | Method for pretreating friction linings |
| US10823245B2 (en) | 2015-12-17 | 2020-11-03 | Schaeffler Technologies AG & Co. KG | Method for the pretreatment of a friction lining |
| CN110753800A (en) * | 2017-06-16 | 2020-02-04 | 三菱电机株式会社 | Brake lining |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2995377A1 (en) | 2014-03-14 |
| FR2995377B1 (en) | 2017-11-24 |
| CN103671654B (en) | 2019-06-28 |
| DE102012017874A1 (en) | 2014-03-27 |
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