DE9114265U1 - Asbestos-free friction lining - Google Patents
Asbestos-free friction liningInfo
- Publication number
- DE9114265U1 DE9114265U1 DE9114265U DE9114265U DE9114265U1 DE 9114265 U1 DE9114265 U1 DE 9114265U1 DE 9114265 U DE9114265 U DE 9114265U DE 9114265 U DE9114265 U DE 9114265U DE 9114265 U1 DE9114265 U1 DE 9114265U1
- Authority
- DE
- Germany
- Prior art keywords
- asbestos
- friction lining
- phosphates
- free friction
- phosphate
- 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.)
- Expired - Lifetime
Links
- 229910019142 PO4 Inorganic materials 0.000 claims description 17
- 235000021317 phosphate Nutrition 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 239000010452 phosphate Substances 0.000 claims description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 10
- NVWBARWTDVQPJD-UHFFFAOYSA-N antimony(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[Sb+3].[Sb+3] NVWBARWTDVQPJD-UHFFFAOYSA-N 0.000 claims description 8
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000001488 sodium phosphate Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000012764 mineral filler Substances 0.000 claims description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 239000004254 Ammonium phosphate Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical class [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 claims description 2
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 235000011008 sodium phosphates Nutrition 0.000 claims 1
- 235000019801 trisodium phosphate Nutrition 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000010425 asbestos Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 229910052895 riebeckite Inorganic materials 0.000 description 4
- 229910000162 sodium phosphate Inorganic materials 0.000 description 4
- 229910001060 Gray iron Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000011575 calcium Substances 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-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
- 238000005299 abrasion Methods 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
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 150000002505 iron Chemical class 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
- 239000000463 material Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- YPMOSINXXHVZIL-UHFFFAOYSA-N sulfanylideneantimony Chemical compound [Sb]=S YPMOSINXXHVZIL-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)
Description
Asbestfreier ReibbelagAsbestos-free friction lining
BeschreibungDescription
Die Neuerung betrifft einen asbestfreien Reibbelag, insbesondere für Eisenbahnbremsen und zwar sowohl für Scheibenbremsen als auch für Klotzbremsen.The innovation concerns an asbestos-free friction lining, particularly for railway brakes, both for disk brakes and for block brakes.
Für Klotzbremsen werden z. B. Bremssohlen aus Grauguß verwendet, da sie bei Nässe nur einen geringen Abfall des Reibwertes aufweisen.For example, brake pads made of gray cast iron are used for block brakes, since they only show a slight drop in the coefficient of friction when wet.
Ein weiterer Vorteil ist, daß sie kein Asbest enthalten. Nachteilig ist jedoch ihre vergleichsweise kurze Lebensdauer und die starke Funkenbildung bei Betätigung der Bremse im Vergleich mit asbesthalt igen, kunststoffgebundenen Reibbelägen. Um die Funkenbildung zu vermeiden, wurden Reibbeläge aus hochphosphorhaltigem Grauguß vorgeschlagen.Another advantage is that they do not contain asbestos. However, the disadvantage is their relatively short lifespan and the high level of sparking when the brake is applied, compared to plastic-bonded friction linings containing asbestos. In order to avoid sparking, friction linings made of gray cast iron with a high phosphorus content were proposed.
Asbesthalt ige, kunststoffgebundene Reibbeläge zeigen eine geringe Funkenbildung und eine wesentlich höhere, im Einzelfall bis zu 12-fächer Lebensdauer.Asbestos-containing, plastic-bonded friction linings show low spark formation and a significantly longer service life, in individual cases up to 12 times longer.
Wegen des Asbestproblems wurden neue Reibbelagmischungen formuliert, die etwa folgende Zusammensetzung aufweisen:Because of the asbestos problem, new friction lining mixtures have been formulated that have approximately the following composition:
5 bis 3 5 Gew.-% Bindemittel, 10 bis 60 Gew.-% mineralische Füllstoffe,5 to 35 wt.% binder, 10 to 60 wt.% mineral fillers,
5 bis 40 Gew.-% Schmierstoffe, 10 bis 65 Gew.-% Metalle5 to 40 wt.% lubricants, 10 to 65 wt.% metals
und gegebenenfalls Härtungsbeschleuniger, Reibstützer und ähnliche Zusätze.and, if necessary, curing accelerators, friction promoters and similar additives.
Mineralische Füllstoffe sind beispielsweise Baryt und Magnesiumoxid in Pulverform. Metalle können sowohl in Form von Pulvern als auch als Faser zugesetzt werden. Schmierstoffe sind vor allem Kohlenstoffpulver wie Graphi t, Ruß und Koks .Mineral fillers include barite and magnesium oxide in powder form. Metals can be added in powder form or as fibers. Lubricants are mainly carbon powders such as graphite, soot and coke.
Als Metall ist in allen Mischungen Eisen enthalten, und zwar bis etwa 40 Gew.-%. Dieser Eisenanteil verursacht je nach Menge eine mehr oder weniger starke Funkenbildung. Durch den Schmierstoffzusatz kann die Funkenbildung zwar vermindert, aber nicht unterdrückt werden. Üblicherweise werden hierzu etwa drei Volumenteile Graphit je Volumenteil Eisen eingesetzt, um optimale Bedingungen zu erhalten.Iron is contained as a metal in all mixtures, up to about 40% by weight. Depending on the amount, this iron content causes more or less intense sparking. The addition of lubricant can reduce sparking, but not eliminate it. Usually, about three parts by volume of graphite per part by volume of iron are used to achieve optimal conditions.
Für viele Anwendungsfälle, wie beispielsweise für Bremsen an explosionsgeschützten Fahrzeugen oder Hochgeschwindigkeits-Zügen, eignen sich die aus solchen Mischungen hergestellten Reibbeläge nicht.For many applications, such as brakes on explosion-proof vehicles or high-speed trains, the friction linings made from such mixtures are not suitable.
Es bestand daher die Aufgabe, kunststoffgebundene, asbestfreie Reibbeläge zu entwickeln, die beim Bremsen eine noch geringere Funkenbildung aufweisen.The task was therefore to develop plastic-bonded, asbestos-free friction linings that would produce even less sparks when braking.
Die Aufgabe wird neuerungsgemäß durch einen Reibbelag der vorstehenden Art gelöst, der neben den üblichen Füllstoffen 2 bis 35 Gew.-%, insbesondere 10 bis 2 5 Gew.-% einer Mischung aus Alkali- oder/und Ammoniumphosphaten und Antimontrisulfid als Füllstoffkomponente enthält. Das Mischungsverhältnis Phosphate zu Antimontrisulfid, beträgt 1 : 3 bis 9 : Als Phosphat wird vorzugsweise ein Gemisch aus kristal1wasserhalti gern und krista!!wasserfreiem Phosphat verwendet mit einem Mischungsverhältnis von kristal1wasserhaltigern zu kristal1 wasserfreiem Phosphat von 1 : 3 bis 6 : 1.The problem is solved in accordance with the innovation by a friction lining of the above type, which, in addition to the usual fillers, contains 2 to 35% by weight, in particular 10 to 25% by weight, of a mixture of alkali and/or ammonium phosphates and antimony trisulfide as a filler component. The mixing ratio of phosphates to antimony trisulfide is 1:3 to 9:1. A mixture of crystalline water-containing and crystalline water-free phosphate is preferably used as the phosphate, with a mixing ratio of crystalline water-containing to crystalline water-free phosphate of 1:3 to 6:1.
Antimontrisulfid ist als Komponente von Feststoffschmiermitteln in Reibbelägen an sich bekannt. Nach EP-A 0 198 420 und EP-A 0 328 514 bestehen solche Feststoffschmiermittel aus Graphit, Zinksulfid, Antimonsulfid und Phosphaten des Calciums, Eisens, Magnesiums, Aluminiums oder Zinks.Antimony trisulfide is known per se as a component of solid lubricants in friction linings. According to EP-A 0 198 420 and EP-A 0 328 514, such solid lubricants consist of graphite, zinc sulfide, antimony sulfide and phosphates of calcium, iron, magnesium, aluminum or zinc.
Solche Feststoffschmiermittel verbessern die Reibeigenschaften der Beläge, verhindern aber nicht die Funkenbildung.Such solid lubricants improve the friction properties of the linings, but do not prevent sparking.
Die Neuerung wird anhand der nachfolgenden Beispiele näher erläutert:The innovation is explained in more detail using the following examples:
Aus den in der Tabelle aufgeführten Rezepturen werden Reibbelagmischungen in üblicher Weise hergestellt,Friction lining mixtures are produced in the usual way from the recipes listed in the table,
zu Klotzbremssohlen, entsprechend dem UIC-Merkblatt Nr. 541, verpreßt und auf dem Bremsenprüfstand bei einer Geschwindigkeit von 240 km/h und einer Anpreßkraft von 2500 daN getestet. Dabei wird die Funkenbildung durch Punktvergabe von 1 bis 10 bewertet. Ein Punkt bedeutet sehr starke Funkenbildung wie bei einer Bremssohle aus Grauguß. Bei 10 Punkten tritt absolut keine Funkenbildung mehr auf.to form block brake shoes, in accordance with UIC leaflet no. 541, and tested on the brake test bench at a speed of 240 km/h and a contact pressure of 2500 daN. The spark formation is evaluated by awarding points from 1 to 10. One point means very strong spark formation, as with a brake shoe made of grey cast iron. At 10 points, there is absolutely no spark formation.
Die Ergebnisse sind ebenfalls in der Tabelle gegenübergestellt. Das Beispiel 1 geht dabei von einem üblichen Reibbelag aus (Vergleich). Die Beispiele 2 und 3 betreffen die neuerungsgemäßen Reibbeläge und bei dem Vergleichsbeispiel 4 ist das Natriumphosphat (Beispiel 2) durch Ca 1 eiumphosphat ersetzt worden.The results are also compared in the table. Example 1 is based on a standard friction lining (comparison). Examples 2 and 3 relate to the new friction linings and in comparison example 4 the sodium phosphate (example 2) has been replaced by calcium phosphate.
Wie die Beispiele zeigen, läßt sich die Funkenbildung bei Reibbelägen wirksam durch den Ersatz eines Teiles der mineralischen Füllstoffe durch ein Gemisch aus Natriumphosphat und Antimontrisulfid reduzieren, während der Zusatz eines Gemisches aus CaIciumphosphat und Antimontrisulfid die Funkenbildung noch verstärkt.As the examples show, sparking in friction linings can be effectively reduced by replacing some of the mineral fillers with a mixture of sodium phosphate and antimony trisulfide, while the addition of a mixture of calcium phosphate and antimony trisulfide increases sparking.
Die Verwendung von kristal1wasserhalti gern Natriumphosphat (Beispiel 2) führt allerdings zu weicheren Belägen und damit zu erhöhtem Abrieb verglichen mit Standardbelägen (Beispiel 1).However, the use of sodium phosphate containing crystalline water (Example 2) leads to softer coatings and thus to increased abrasion compared to standard coatings (Example 1).
Die Verwendung von kristallwasserfreiem Natriumphosphat allein bewirkt ebenfalls eine Reduzierung der Funkenbildung, aber der Belag ist zu hart und hat schlechtere Reibeigenschaften als der Standardbelag.The use of anhydrous sodium phosphate alone also reduces sparking, but the coating is too hard and has poorer friction properties than the standard coating.
Für die Funkenbildung ist die Härte des Belages jedoch nicht maßgeblich. Die Härte und damit der Verschleiß und die Reibeigenschaften sind über das Mischungsverhältnis des kristallwasserhaltigen zum kristallwasserfreien Phosphat einstellbar. Weitere Versuche haben gezeigt, daß die Härte des Belages auch durch eine erhöhte Zugabe von Antimontrisulfid gesteigert werden kann, aber dann nimmt auch die Funkenbi1 dung zu.However, the hardness of the coating is not decisive for spark formation. The hardness and thus the wear and friction properties can be adjusted via the mixing ratio of the phosphate containing water of crystallization to the phosphate free of water of crystallization. Further tests have shown that the hardness of the coating can also be increased by adding more antimony trisulfide, but then the spark formation also increases.
Claims (4)
Scheibenbremsen in Eisenbahnen, bestehend aus einem Bindemittel, mineralischen Füllstoffen, Schmierstoffen, Eisen, sonstigen Metallen und gegebenenfalls weiteren üblichen Zusätzen, dadurch gekennzeichnet, daß er neben den üblichen
Füllstoffen 2 bis 35 Gew.-%, insbesondere 10 bis 25 G e w. - % einer Mischung aus Alkali- oder/und Ammoniumphosphaten und Antimontrisulfid als
Füllstoffkomponente enthält.1. Asbestos-free friction lining for block and
Disc brakes in railways, consisting of a binding agent, mineral fillers, lubricants, iron, other metals and optionally other usual additives, characterized in that it contains, in addition to the usual
Fillers 2 to 35 wt. %, in particular 10 to 25 wt. % of a mixture of alkali and/or ammonium phosphates and antimony trisulphide as
contains filler component.
Phosphat zu Antimontrisulfid 1 : 3 bis 9 : 1 beträgt.2. Asbestos-free friction lining according to claim 1, characterized in that the mixing ratio
Phosphate to antimony trisulfide is 1:3 to 9:1.
kristallwasserhaltiges Phosphat zu3. Asbestos-free friction lining according to claim 1 or 2, characterized in that the phosphates are mixtures with a mixing ratio
phosphate containing water of crystallization to
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3928703A DE3928703C2 (en) | 1989-04-27 | 1989-08-30 | Asbestos-free friction material |
| EP19900100573 EP0394608A3 (en) | 1989-04-27 | 1990-01-12 | Friction material |
| ES90100573T ES2018139A4 (en) | 1989-04-27 | 1990-01-12 | FRICTION MATERIAL |
| US07/494,160 US5049191A (en) | 1989-04-27 | 1990-03-15 | Friction material |
| DE9114265U DE9114265U1 (en) | 1989-04-27 | 1991-11-15 | Asbestos-free friction lining |
| SK2859-92A SK279865B6 (en) | 1989-04-27 | 1992-09-17 | Asbestos-free friction material |
| CS922859A CZ283696B6 (en) | 1989-04-27 | 1992-09-17 | Asbestos-free friction lining |
| BE9200940A BE1005925A6 (en) | 1989-04-27 | 1992-10-30 | Friction lining asbestos. |
| IT92RM000231U IT227362Y1 (en) | 1989-04-27 | 1992-11-09 | SEAL WITHOUT ASBESTOS, IN PARTICULAR FOR BRAKES. |
| PL92296574A PL169792B1 (en) | 1989-04-27 | 1992-11-12 | Asbestos-free friction lining |
| RO92-01413A RO111463B1 (en) | 1989-04-27 | 1992-11-12 | Friction gasket without asbestos |
| FR929213685A FR2683824B3 (en) | 1989-04-27 | 1992-11-13 | ASBESTOS-FREE FRICTION TRIM. |
| HUP9203564A HU216018B (en) | 1989-04-27 | 1992-11-13 | Asbestos-free friction lining |
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 (1)
| Publication Number | Publication Date |
|---|---|
| DE9114265U1 true DE9114265U1 (en) | 1992-02-20 |
Family
ID=25880356
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3928703A Expired - Fee Related DE3928703C2 (en) | 1989-04-27 | 1989-08-30 | Asbestos-free friction material |
| DE9114265U Expired - Lifetime DE9114265U1 (en) | 1989-04-27 | 1991-11-15 | Asbestos-free friction lining |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3928703A Expired - Fee Related DE3928703C2 (en) | 1989-04-27 | 1989-08-30 | Asbestos-free friction material |
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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0540826A1 (en) * | 1991-10-26 | 1993-05-12 | Rütgers Pagid Aktiengesellschaft | Asbestos-free friction material for brake linings for railway traffic |
| WO1995007418A1 (en) * | 1993-09-10 | 1995-03-16 | Sab Wabco (Bromborough) Limited | Friction pads for use in disc brakes |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 FR FR929213685A patent/FR2683824B3/en not_active Expired - Lifetime
- 1992-11-13 HU HUP9203564A patent/HU216018B/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0540826A1 (en) * | 1991-10-26 | 1993-05-12 | Rütgers Pagid Aktiengesellschaft | Asbestos-free friction material for brake linings for railway traffic |
| WO1995007418A1 (en) * | 1993-09-10 | 1995-03-16 | Sab Wabco (Bromborough) Limited | Friction pads for use in disc brakes |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2683824A3 (en) | 1993-05-21 |
| DE3928703C2 (en) | 1998-02-19 |
| HUT66857A (en) | 1995-01-30 |
| HU9203564D0 (en) | 1993-04-28 |
| CZ285992A3 (en) | 1993-07-14 |
| BE1005925A6 (en) | 1994-03-15 |
| PL296574A1 (en) | 1993-09-06 |
| RO111463B1 (en) | 1996-10-31 |
| IT227362Y1 (en) | 1997-09-17 |
| ITRM920231U1 (en) | 1994-05-09 |
| FR2683824B3 (en) | 1993-10-29 |
| HU216018B (en) | 1999-04-28 |
| ES2018139A4 (en) | 1991-04-01 |
| CZ283696B6 (en) | 1998-06-17 |
| PL169792B1 (en) | 1996-08-30 |
| DE3928703A1 (en) | 1990-10-31 |
| ITRM920231V0 (en) | 1992-11-09 |
| SK285992A3 (en) | 1995-02-08 |
| SK279865B6 (en) | 1999-04-13 |
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