FR2683824A3 - Asbestos-free friction lining - Google Patents
Asbestos-free friction lining Download PDFInfo
- Publication number
- FR2683824A3 FR2683824A3 FR9213685A FR9213685A FR2683824A3 FR 2683824 A3 FR2683824 A3 FR 2683824A3 FR 9213685 A FR9213685 A FR 9213685A FR 9213685 A FR9213685 A FR 9213685A FR 2683824 A3 FR2683824 A3 FR 2683824A3
- Authority
- FR
- France
- Prior art keywords
- asbestos
- phosphate
- friction lining
- free friction
- mixture
- 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.)
- Granted
Links
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 235000021317 phosphate Nutrition 0.000 claims abstract description 20
- 239000010452 phosphate Substances 0.000 claims abstract description 17
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 17
- NVWBARWTDVQPJD-UHFFFAOYSA-N antimony(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[Sb+3].[Sb+3] NVWBARWTDVQPJD-UHFFFAOYSA-N 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229940007424 antimony trisulfide Drugs 0.000 claims description 7
- 239000000314 lubricant Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical class [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000001488 sodium phosphate Substances 0.000 claims description 5
- 235000011008 sodium phosphates Nutrition 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 239000012764 mineral filler Substances 0.000 claims description 4
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 229910052787 antimony Inorganic materials 0.000 claims 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 14
- 239000011256 inorganic filler Substances 0.000 abstract description 2
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 2
- 239000004254 Ammonium phosphate Substances 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical class [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 abstract 1
- 235000019289 ammonium phosphates Nutrition 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000010425 asbestos Substances 0.000 description 5
- 229910052895 riebeckite Inorganic materials 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910000162 sodium phosphate Inorganic materials 0.000 description 4
- 229910001060 Gray iron Inorganic materials 0.000 description 3
- 239000001506 calcium phosphate Substances 0.000 description 3
- 235000011010 calcium phosphates Nutrition 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical class [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 3
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 3
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- PVGBHEUCHKGFQP-UHFFFAOYSA-N sodium;n-[5-amino-2-(4-aminophenyl)sulfonylphenyl]sulfonylacetamide Chemical compound [Na+].CC(=O)NS(=O)(=O)C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 PVGBHEUCHKGFQP-UHFFFAOYSA-N 0.000 description 1
- YPMOSINXXHVZIL-UHFFFAOYSA-N sulfanylideneantimony Chemical compound [Sb]=S YPMOSINXXHVZIL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Garniture de friction sans amiante
Description
La nouveauté concerne une garniture de friction sans amiante, notamment pour freins de chemin de fer et ceci aussi bien pour des freins à disque que pour des freins à sabot.Asbestos-free friction lining
Description
The novelty concerns an asbestos-free friction lining, in particular for railway brakes, and this for both disc brakes and shoe brakes.
Pour les freins à sabot, on utilise par ex. des semelles de frein en fonte grise, car on n observe avec celles-ci qu'une faible chute du coefficient de frottement à l'humidité. For shoe brakes, e.g. brake shoes made of gray cast iron, because there is only a slight drop in the coefficient of friction in humidity.
Un autre avantage est qu'elles ne contiennent pas d'amiante. Leur longévité comparativement faible et la formation intempestive d'étincelles lors de la manoeuvre des freins constituent toutefois un inconvénient en comparaison des garnitures de friction avec amiante liées par une matière synthétique. Pour éviter la formation d'étincelles, il a été proposé des garnitures de friction en fonte grise à forte teneur en phosphore. Another advantage is that they do not contain asbestos. Their comparatively short lifespan and the untimely formation of sparks when the brakes are applied, however, constitute a drawback in comparison with friction linings with asbestos linked by a synthetic material. To avoid the formation of sparks, friction castings in gray cast iron with a high phosphorus content have been proposed.
Les garnitures de friction avec amiante liées par une matière synthétique offrent une faible formation d'étincelles et une longévité nettement plus élevée qui, dans un cas d'espèce, est multipliée par 12. The friction linings with asbestos bonded by a synthetic material offer a low formation of sparks and a significantly higher longevity which, in this case, is multiplied by 12.
A cause du problème de l'amiante, de nouveaux mélanges pour garnitures de friction ont été formulés dont la composition approximative est la suivante
5 à 35% en poids de liant,
10 à 60% en poids de matières de charge minérales,
5 à 40% en poids de lubrifiants,
10 à 65% en poids de métaux et éventuellement des accélérateurs de durcissement, des renforçateurs de friction et additifs analogues.Because of the asbestos problem, new mixtures for friction linings have been formulated, the approximate composition of which is as follows
5 to 35% by weight of binder,
10 to 60% by weight of mineral fillers,
5 to 40% by weight of lubricants,
10 to 65% by weight of metals and possibly hardening accelerators, friction reinforcers and similar additives.
Des matières de charge minérales sont par exemple la barytine et l'oxyde de magnésium à l'état pulvérulent. Les métaux peuvent être incorporés aussi bien sous la forme de poudres que sous la forme de fibres. Les lubrifiants sont surtout de la poudre de carbone comme le graphite, le noir de carbone et le coke. Mineral fillers are, for example, barite and magnesium oxide in powder form. The metals can be incorporated both in the form of powders and in the form of fibers. Lubricants are mostly carbon powder like graphite, carbon black and coke.
Tous les mélanges contiennent du fer en tant que métal et cela jusqu'à environ 40% en poids. Cette proportion de fer provoque, suivant la quantité, une formation d'étincelles plus ou moins forte. La formation d'étincelles peut en effet être réduite par l'adjonction d'un lubrifiant, mais ne peut être supprimée. On y ajoute habituellement environ trois parties en volume de graphite pour une partie en volume de fer pour obtenir des conditions optimales. All mixtures contain iron as a metal and this up to about 40% by weight. This proportion of iron causes, depending on the quantity, a formation of sparks more or less strong. The formation of sparks can indeed be reduced by the addition of a lubricant, but cannot be eliminated. Usually about three parts by volume of graphite are added to one part by volume of iron to obtain optimal conditions.
Des garnitures de friction réalisées à partir de ces mélanges ne conviennent pas pour de nombreux domaines d'application, comme par exemple pour les freins sur des véhicules protégés contre les explosions ou sur les trains à grande vitesse. Friction linings made from these mixtures are not suitable for many fields of application, such as for example brakes on explosion-protected vehicles or on high-speed trains.
I1 se posait par conséquent le problème de mettre au point des garnitures de friction sans amiante liées par une matière synthétique qui présentent une formation d'étincelles encore plus faible lors du freinage. I1 therefore posed the problem of developing friction linings without asbestos bound by a synthetic material which have an even lower spark formation during braking.
Le problème est résolu, conformément à la nouveauté, par une garniture de friction du type précité qui contient, outre les matières de charges usuelles, 2 à 35% en poids, en particulier 10 à 25% en poids d'un mélange obtenu à partir de phosphates alcalins et/ou d'ammonium et de trisulfure d'anti moine en tant que matières de charge. La proportion de mélange phosphates à trisulfure d'antimoine s'étend de 1:3 à 9:1. The problem is solved, in accordance with the novelty, by a friction lining of the aforementioned type which contains, in addition to the usual fillers, 2 to 35% by weight, in particular 10 to 25% by weight of a mixture obtained from alkaline phosphates and / or ammonium and anti-monk trisulfide as fillers. The proportion of phosphate mixtures to antimony trisulfide ranges from 1: 3 to 9: 1.
Comme phosphate, on utilise de préférence un mélange de phosphate hydraté et de phosphate anhydre avec une proportion de mélange phosphate hydraté à phosphate anhydre de 1:3 à 6:1.As phosphate, a mixture of hydrated phosphate and anhydrous phosphate is preferably used with a proportion of hydrated phosphate mixture to anhydrous phosphate from 1: 3 to 6: 1.
Le trisulfure d'antimoine est connu en soi comme composant de lubrifiants solides dans des garnitures de friction. Selon les brevets EP-A-0 198 420 et EP-A-0 328 514, des lubrifiants solides de ce type sont constitués de graphite, de sulfure de zinc, de sulfure d'antimoine et de phosphates de calcium, de fer, de magnésium, d'aluminium ou de zinc. Antimony trisulfide is known per se as a component of solid lubricants in friction linings. According to patents EP-A-0 198 420 and EP-A-0 328 514, solid lubricants of this type consist of graphite, zinc sulfide, antimony sulfide and calcium phosphates, iron, magnesium, aluminum or zinc.
De tels lubrifiants solides améliorent les propriétés de frottement des garnitures mais n'empêchent pas la formation d'étincelles. Such solid lubricants improve the friction properties of the linings but do not prevent the formation of sparks.
La nouveauté sera expliquée plus en détail à l'aide des exemples suivants. The novelty will be explained in more detail using the following examples.
Exemples 1 à 4
Des mélanges pour garnitures de friction sont pré- parés selon la manière habituelle à partir des formulations exposées dans le tableau, sont pressés en des semelles de frein à sabot selon la fiche technique UIC n" 541 et testés sur le ban d'essai pour freins à une vitesse de 240 km/h et avec une force de pression de 2500 daN. Dans ce cas, la formation d'étincelles est évaluée par attribution de points de 1 à 10. Un point signifie une formation d'étincelles très prononcée comme dans le cas d'une semelle de frein en fonte grise.Examples 1 to 4
Mixtures for friction linings are prepared in the usual way from the formulations set out in the table, are pressed into shoe brake shoes according to UIC technical sheet No. 541 and tested on the brake test bench at a speed of 240 km / h and with a pressure force of 2500 daN. In this case, the formation of sparks is evaluated by attributing points from 1 to 10. A point means a formation of sparks very pronounced as in the case of a gray cast iron brake shoe.
A 10 points, il ne se produit absolument plus de formation d'étincelles.At 10 points, absolutely no sparking occurs.
Les résultats sont également présentés dans le tableau. Ainsi, l'exemple 1 part d'une garniture de friction courante (comparaison). Les exemples 2 et 3 concernent les garnitures de friction conformes à la nouveauté et dans l'exemple comparatif 4, le phosphate de sodium (exemple 2) a été remplacé par du phosphate de calcium. The results are also presented in the table. Thus, example 1 starts from a common friction lining (comparison). Examples 2 and 3 relate to friction linings conforming to the novelty and in Comparative Example 4, sodium phosphate (Example 2) was replaced by calcium phosphate.
Comme le montrent les exemples, la formation d'étincelles dans les garnitures de friction peut être efficacement réduite par remplacemeht d'une partie des matières de charge minérales par un mélange de phosphate de sodium et de trisulfure d'antimoine, alors que l'addition d'un mélange de phosphate de calcium et de trisulfure d'antimoine accentue encore la formation d'étincelles. As the examples show, the formation of sparks in the friction linings can be effectively reduced by replacing part of the mineral fillers with a mixture of sodium phosphate and antimony trisulfide, while the addition a mixture of calcium phosphate and antimony trisulfide further accentuates the formation of sparks.
L'emploi de phosphate de sodium hydraté (exemple 2) conduit en effet à des garnitures plus molles et de ce fait à une usure accrue par rapport à des garnitures standards (exemple 1). The use of hydrated sodium phosphate (Example 2) leads in fact to softer linings and therefore to increased wear compared to standard linings (Example 1).
L'emploi de phosphate de sodium anhydre seul entraîne également une diminution de la formation d'étincelles, mais la garniture est trop dure et possède des propriétés de frottement plus mauvaises que la garniture standard. The use of anhydrous sodium phosphate alone also results in a reduction in sparking, but the packing is too hard and has poorer friction properties than the standard packing.
Pour la formation d'étincelles, la dureté de la garniture n'est cependant pas déterminante. La dureté et par conséquent l'usure et lesprçriétés de frottement peuvent être ajustées par l'intermédiaire du rapport de mélange du phosphate hydraté au phosphate anhydre. D'autres essais ont montré que la dureté de la garniture pouvait être augmentée par une addition accrue de trisulfure d'antimoine mais, dans ce cas, la formation d'étincelles augmente également. For the formation of sparks, however, the hardness of the seal is not decisive. The hardness and therefore the wear and friction properties can be adjusted via the mixing ratio of hydrated phosphate to anhydrous phosphate. Other tests have shown that the hardness of the packing can be increased by an increased addition of antimony trisulfide but, in this case, the formation of sparks also increases.
Tableau
Exemple n 1 2 3 4
Composition
en poids
Liant 14 14 14 14
Fer 16 16 16 16
Autres métaux 8 8 8 8
Phosphate + -- Na3PO4 + Na3PO4 + Ca2P2O6 +
Eau de cristallisation 12H2 2 2 12H20 : 8 2H2O : 12
12H2O : 12 12H2O 8 2
Phosphate anhydre -- -- Na3PO4 : 4
Trisulfure d'antimoine -- -- -- -
Matières de charge inorganiques 50 38 38 38
Graphite 12 12 12 12
Formation d'étincelles
Points 7 9 9 à 10 5 Board
Example 1 2 3 4
Composition
in weight
Binder 14 14 14 14
Iron 16 16 16 16
Other metals 8 8 8 8
Phosphate + - Na3PO4 + Na3PO4 + Ca2P2O6 +
Water of crystallization 12H2 2 2 12H20: 8 2H2O: 12
12H2O: 12 12H2O 8 2
Anhydrous phosphate - - Na3PO4: 4
Antimony trisulfide - - - -
Inorganic fillers 50 38 38 38
Graphite 12 12 12 12
Sparking
Points 7 9 9 to 10 5
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3913952 | 1989-04-27 | ||
| DE9114265U DE9114265U1 (en) | 1989-04-27 | 1991-11-15 | Asbestos-free friction lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2683824A3 true FR2683824A3 (en) | 1993-05-21 |
| FR2683824B3 FR2683824B3 (en) | 1993-10-29 |
Family
ID=25880356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR929213685A Expired - Lifetime FR2683824B3 (en) | 1989-04-27 | 1992-11-13 | ASBESTOS-FREE FRICTION TRIM. |
Country Status (10)
| Country | Link |
|---|---|
| BE (1) | BE1005925A6 (en) |
| CZ (1) | CZ283696B6 (en) |
| DE (2) | DE3928703C2 (en) |
| ES (1) | ES2018139A4 (en) |
| FR (1) | FR2683824B3 (en) |
| HU (1) | HU216018B (en) |
| IT (1) | IT227362Y1 (en) |
| PL (1) | PL169792B1 (en) |
| RO (1) | RO111463B1 (en) |
| SK (1) | SK279865B6 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4135389A1 (en) * | 1991-10-26 | 1993-04-29 | Ruetgers Pagid Ag | SCRAP-FREE FRICTION MATERIAL FOR RAILWAY BRAKE PADS |
| GB9318764D0 (en) * | 1993-09-10 | 1993-10-27 | Wabco Holdings Sab | Improvements relating to friction pads for use in disc brakes |
| JP7323310B2 (en) * | 2019-03-20 | 2023-08-08 | 曙ブレーキ工業株式会社 | friction material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61186600A (en) * | 1985-02-13 | 1986-08-20 | 株式会社クボタ | Titanium compound fiber molded body |
| JPS61191599A (en) * | 1985-02-19 | 1986-08-26 | Kubota Ltd | Friction material |
-
1989
- 1989-08-30 DE DE3928703A patent/DE3928703C2/en not_active Expired - Fee Related
-
1990
- 1990-01-12 ES ES90100573T patent/ES2018139A4/en active Pending
-
1991
- 1991-11-15 DE DE9114265U patent/DE9114265U1/en not_active Expired - Lifetime
-
1992
- 1992-09-17 CZ CS922859A patent/CZ283696B6/en not_active IP Right Cessation
- 1992-09-17 SK SK2859-92A patent/SK279865B6/en not_active IP Right Cessation
- 1992-10-30 BE BE9200940A patent/BE1005925A6/en not_active IP Right Cessation
- 1992-11-09 IT IT92RM000231U patent/IT227362Y1/en active IP Right Grant
- 1992-11-12 PL PL92296574A patent/PL169792B1/en unknown
- 1992-11-12 RO RO92-01413A patent/RO111463B1/en unknown
- 1992-11-13 HU HUP9203564A patent/HU216018B/en not_active IP Right Cessation
- 1992-11-13 FR FR929213685A patent/FR2683824B3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| PL296574A1 (en) | 1993-09-06 |
| IT227362Y1 (en) | 1997-09-17 |
| RO111463B1 (en) | 1996-10-31 |
| BE1005925A6 (en) | 1994-03-15 |
| CZ285992A3 (en) | 1993-07-14 |
| ES2018139A4 (en) | 1991-04-01 |
| HU9203564D0 (en) | 1993-04-28 |
| DE3928703C2 (en) | 1998-02-19 |
| DE9114265U1 (en) | 1992-02-20 |
| DE3928703A1 (en) | 1990-10-31 |
| HU216018B (en) | 1999-04-28 |
| ITRM920231V0 (en) | 1992-11-09 |
| HUT66857A (en) | 1995-01-30 |
| CZ283696B6 (en) | 1998-06-17 |
| SK279865B6 (en) | 1999-04-13 |
| FR2683824B3 (en) | 1993-10-29 |
| SK285992A3 (en) | 1995-02-08 |
| ITRM920231U1 (en) | 1994-05-09 |
| PL169792B1 (en) | 1996-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5124814B2 (en) | Non-asbestos friction material | |
| FR2507612A1 (en) | ORGANIC FRICTION MATERIAL | |
| US20030026969A1 (en) | Non-asbestos-based friction materials | |
| EP0740745B1 (en) | FRICTION MATERIAL FOR USE WITH Al.ALLOY ROTOR | |
| CN107709504B (en) | Non-asbestos friction material | |
| FR2491934A1 (en) | ASBESTOS-FREE FRICTION MATERIAL | |
| BE1005925A6 (en) | Friction lining asbestos. | |
| US20200124127A1 (en) | Friction material | |
| EP0488159A2 (en) | Non-asbestos friction material | |
| JPH04314779A (en) | Nonasbestine friction material | |
| JPH108034A (en) | Friction material composition | |
| JPH05320622A (en) | Friction material | |
| FR2747753A1 (en) | Non-magnet friction material for brake pads | |
| JPH08109369A (en) | Friction material | |
| US20200208699A1 (en) | Friction material | |
| JPS59149973A (en) | Friction material molding composition | |
| CZ276392A3 (en) | Friction material for lining of railway vehicle brakes | |
| JPH11152460A (en) | Friction material composition, process for producing friction material composition and friction material using the friction material composition | |
| JPH06184525A (en) | Composition for friction material | |
| JPH06346931A (en) | Frictional material composition | |
| JP2002294217A (en) | Friction material | |
| JPH11310773A (en) | Friction material composition, production thereof, and friction material produced from the same | |
| GB2295621A (en) | Brake pads comprising aluminium tripolyphosphate | |
| JPH08245948A (en) | Friction material composition | |
| WO1996017181A1 (en) | Brake pads |