FR2498713A1 - Disc brake shoe with anticorrosion layer - and anti:noise latex based layer contg. e.g. natural or synthetic rubbers - Google Patents
Disc brake shoe with anticorrosion layer - and anti:noise latex based layer contg. e.g. natural or synthetic rubbers Download PDFInfo
- Publication number
- FR2498713A1 FR2498713A1 FR8101570A FR8101570A FR2498713A1 FR 2498713 A1 FR2498713 A1 FR 2498713A1 FR 8101570 A FR8101570 A FR 8101570A FR 8101570 A FR8101570 A FR 8101570A FR 2498713 A1 FR2498713 A1 FR 2498713A1
- Authority
- FR
- France
- Prior art keywords
- latex
- coating
- brake pad
- support plate
- pad according
- 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
- 239000004816 latex Substances 0.000 title claims abstract description 20
- 229920000126 latex Polymers 0.000 title claims abstract description 20
- 229920003052 natural elastomer Polymers 0.000 title 1
- 229920001194 natural rubber Polymers 0.000 title 1
- 229920003051 synthetic elastomer Polymers 0.000 title 1
- 239000005061 synthetic rubber Substances 0.000 title 1
- 239000006185 dispersion Substances 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 6
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 6
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 6
- 238000004073 vulcanization Methods 0.000 claims abstract description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 4
- 239000005011 phenolic resin Substances 0.000 claims abstract description 4
- 239000003381 stabilizer Substances 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims abstract description 3
- 239000002562 thickening agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims description 31
- 239000011248 coating agent Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 11
- 238000005260 corrosion Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 238000007650 screen-printing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 4
- 230000004888 barrier function Effects 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000003973 paint Substances 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 3
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 3
- 238000010073 coating (rubber) Methods 0.000 description 3
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 3
- 150000002825 nitriles Chemical class 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 2
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- -1 chalk Chemical compound 0.000 description 2
- 235000019993 champagne Nutrition 0.000 description 2
- 229930003836 cresol Natural products 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- BOXSVZNGTQTENJ-UHFFFAOYSA-L zinc dibutyldithiocarbamate Chemical compound [Zn+2].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC BOXSVZNGTQTENJ-UHFFFAOYSA-L 0.000 description 2
- PGNWIWKMXVDXHP-UHFFFAOYSA-L zinc;1,3-benzothiazole-2-thiolate Chemical compound [Zn+2].C1=CC=C2SC([S-])=NC2=C1.C1=CC=C2SC([S-])=NC2=C1 PGNWIWKMXVDXHP-UHFFFAOYSA-L 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- GZNRISJLOXVOSH-UHFFFAOYSA-N n-phenylaniline;propan-2-one Chemical compound CC(C)=O.C=1C=CC=CC=1NC1=CC=CC=C1 GZNRISJLOXVOSH-UHFFFAOYSA-N 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- BHAAPTBBJKJZER-UHFFFAOYSA-N p-anisidine Chemical compound COC1=CC=C(N)C=C1 BHAAPTBBJKJZER-UHFFFAOYSA-N 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-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
-
- 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
- F16D65/00—Parts or details
- F16D65/0006—Noise or vibration control
-
- 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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0056—Elastomers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Plaquette de frein k disque.Disc brake pad.
La présente invention a pour objet une plaquette de frein à disque. The present invention relates to a disc brake pad.
Pour atténuer ou supprimer le bruit occasionné par les vibrations au cours du freinage, il existe différentes solutions et notamment un procédé qui consiste k revêtir totalement la plaquette de frein d'une couche mince de peinture k base de caoutchouc, ainsi qu'il est décrit dans le brevet français 75 17 485. To reduce or suppress the noise caused by vibrations during braking, there are various solutions and in particular a method which consists in completely coating the brake pad with a thin layer of rubber-based paint, as described in French patent 75 17 485.
Ce procédé présente malgré tout les inconvénients suivanta. This process nevertheless has the following disadvantages.
En raison de son épaisseur qui est supérieure k celle des revetements anticorrosion classiques (revêtexent caoutchouc 0,1 nn maximum, revttement anticorrosion 0,025 nia), il est nécessaire d'utiliser des armatures métalliques de dimensions différentes pour permettre un bon coulisse eot dans les zones de guidage. Because of its thickness which is greater than that of conventional anticorrosion coatings (rubber coating 0.1 nn maximum, anticorrosion coating 0.025 nie), it is necessary to use metal reinforcements of different dimensions to allow good sliding and eot in areas guide.
En effet, un me^me Organe de freinage peut etre monte sur différents types de véhicules qui ne nécessitent pas tous un revete- ment contre le brui; ce qui contraint k utiliser des armatures métalliques différentes selon qu'elles seront ou non revetues de peinture k base de caoutchouc. Indeed, the same braking device can be fitted to different types of vehicles which do not all require a coating against noise; which means using different metal reinforcements depending on whether or not they are coated with rubber-based paint.
D'après l'expérience acquise dans l'utilisation du revêtement décrit dans le brevet français nO 75 17 485, il a été démontré que,contrsirement k l'une des caractéristiques de ce procédé, il est nécessaire, afin de renforcer l'action contre le bruit, de déposer une couche de revetement supérieure k 0,1 mr. From the experience acquired in the use of the coating described in French patent No. 75 17 485, it has been shown that, contrary to one of the characteristics of this process, it is necessary, in order to reinforce the action against noise, deposit a coating layer greater than 0.1 mr.
Les exemples de mélange constituant le revetement, cites dans le brevet français 75 17 485, en raison de leur faible viscosité necessiteraient des applications répétées du liquide pour obtenir l'épaisseur désirée, ce qui industriellement augmenterait le prix de revient de la plaquette. The examples of mixture constituting the coating, cited in French patent 75 17 485, because of their low viscosity would require repeated applications of the liquid to obtain the desired thickness, which industrially would increase the cost price of the wafer.
Par ailleurs, le revêtement décrit dans le brevet est
censé assurer deux fonctions, c'est-à-dire empêcher le bruit et la
corrosion de l'armature métallique. L'expérience acquise dans l'uti
lisation de ce revêtement indique que,du fait de la composition du mélange (40 a 50 x d'eau) et de sa mise en oeuvre sur des armatures métalliques non protégées, il se produit déjà un début de corrosion
provoqué par l'eau qui, en outre, lors de la vulcanisation reste emprisonnée en partie entre la couche vulcanisée et l'armature métal
lique et peut alors continuer son action oxydante.Furthermore, the coating described in the patent is
supposed to perform two functions, i.e. to prevent noise and
corrosion of the metal reinforcement. Experience gained in the uti
reading of this coating indicates that, due to the composition of the mixture (40 to 50 x water) and its use on unprotected metal reinforcements, there is already a start of corrosion
caused by water which, in addition, during vulcanization remains partially trapped between the vulcanized layer and the metal frame
liquefied and can then continue its oxidizing action.
Enfin, on peut constater de plus une mauvaise adhérence entre le revêtement caoutchouc et l'armature métallique non protégée, ce qui provoque un pelage du revêtement en cours d'utilisation, d'où une atténuation des effets contre le bruit et contre la corrosion. Finally, we can also observe a poor adhesion between the rubber coating and the unprotected metal frame, which causes peeling of the coating during use, which reduces the effects against noise and against corrosion.
Conformément à la présente invention un revêtement contre la corrosion de faible épaisseur est appliqué sur la totalité de la plaquette et un revêtement contre le bruit à base de latex sous une épaisseur supérieure à 0,1 e est appliqué seulement sur la face arrière de la plaque de support correspondant aux zones fonctionnelles d'appui d'au moins un piston et d'un étrier. Cette disposition permet de dissocier les effets contre la corrosion et contre le bruit. In accordance with the present invention, a thin corrosion coating is applied to the entire wafer and a latex-based noise coating with a thickness greater than 0.1 e is applied only to the rear face of the plate. support corresponding to the functional support areas of at least one piston and a caliper. This arrangement makes it possible to separate the effects against corrosion and against noise.
L'effet contre la corrosion est obtenu par un revêtement traditionnel de faible épaisseur sur la totalité de la plaquette au moyen notamment d'une peinture, d'une métallisation, d'un cadmiage ou d'un zingage. The effect against corrosion is obtained by a traditional thin coating on the entire wafer, in particular by means of a paint, a metallization, a cadmium plating or a zinc coating.
En ce qui concerne l'effet contre le bruit, celui-ci est obtenu en localisant le revêtement k base de latex dans les zones fonctionnelles d'appui du ou des pistons et de l'étrier, ce qui évite
l'utilisation d'armatures métalliques spéciales pour un revatesuent
contre le bruit.As regards the effect against noise, this is obtained by locating the coating based on latex in the functional support zones of the piston (s) and of the caliper, which avoids
the use of special metal reinforcements for a revatesuent
against noise.
D'autres caractéristiques et avantages de l'invention
seront mieux compris k la lecture de la description qui va suivre
d'un mode de réalisation et en se référant au dessin annexé, sur
lequel
la figure unique est une vue en perspective d'une pla
quette de frein à disque traitée suivant l'invention.Other characteristics and advantages of the invention
will be better understood on reading the description which follows
of an embodiment and with reference to the attached drawing, on
which
the single figure is a perspective view of a pla
disc brake quill treated according to the invention.
A la figure unique on a représenté une plaque de frein
à disque qui comprend une garniture de friction 1 qui est fixée sur
une plaque de support 2 constituée généralement d'une armature métal
lique. La totalité de la plaquette de frein comprenant la garniture
de friction 1 et la plaque de support 2 est recouverte d'un revete-
ment anticorrosion traditionnel de faible épaisseur, ledit revete- ment étant constitué notamment d'une peinture, d'une métallisation,
d'un cadmiage ou d'un zingage. The single figure shows a brake plate
disc which includes a friction lining 1 which is fixed on
a support plate 2 generally consisting of a metal frame
lique. The entire brake pad including the lining
1 and the support plate 2 is covered with a coating
traditional thin anticorrosion coating, said coating comprising in particular a paint, a metallization,
cadmium plating or zinc plating.
En ce qui concerne l'effet contre le bruit celui-ci est assuré par un revêtement à base de latex qui est appliqué sur la face arrière 3 de la plaque de support 2 suivant une zone fonctionnelle d'appui d'un ou plusieurs pistons et d'un étrier du dispositif de freinage. As regards the effect against noise, this is ensured by a latex-based coating which is applied to the rear face 3 of the support plate 2 according to a functional support zone of one or more pistons and a brake device caliper.
Afin d'améliorer l'effet contre le bruit, le revêtement sur la partie 3 de la plaque de support présente une épaisseur qui est supérieure å 0,1 mm, ledit revetement étant déposé en une seule opération. In order to improve the effect against noise, the coating on part 3 of the support plate has a thickness which is greater than 0.1 mm, said coating being deposited in a single operation.
L'épaisseur du revêtement supérieure à 0,1 mm nécessite une viscosité élevée du mélange supérieure à 10 000 centipoises. The thickness of the coating greater than 0.1 mm requires a high viscosity of the mixture greater than 10,000 centipoise.
Il est nécessaire d'utiliser dans ce but un mélange ayant la composition générale suivante
- Latex (SBR, Nitrile, polychloroprène 100 g
nitrile carboxylé...)
Dispersion - Charge (Kaolin, talc, blanc de champagne aqueuse k silice, craie, carbonate de cal- 35 k 65 g
50 % cium )
"- Soufre 1 à 7 g
- Accélérateurs (NBT, MBTS, ZMBT, ZDBC, tétra
éthylènepentamine, amino
éthylpipérazine, xylèndiamine.. )1 k 13 g
" -Oxyde de zinc 6 & 10 g
"- Oxyde de magnésium 0 å 8 g
"- Résinephénolique 0 k 13 g
" - dispersant (polyacrylate de sodium disul fonate de sodium...) 3 k 6 g
"- Antimousse (bromurede cétyltriméthyl ammonium,silicone...) 0,3 k 1,5 8
- - Antioxygène (produit de condensation 0,5 k 1,5 g
acétone diphénylamine
hydroxytoluène butylé
dicumyldiphénylamine mono
benzyléther d' hydroquinone)
- - Agents stabilisants
bis.p.crésol, alkylphénols, 0 k 4 g
p-aminophénol, phosphite
d'alkylaryle, t.alkyl.p.crésol,
condensat d'alcool gras et d'oxyde
d'éthylène, sulfonate de sodium
d'oléyl p.anisidine)
Dispersion - Colorant (noir par exemple) 3 k 8 8 aqueuse à
30 %
Dispersion - Epaississant (hydroxyéthylcellulose, 7 k 16 g aqueuse à hydroxypropylcellulose)
10 7. It is necessary to use for this purpose a mixture having the following general composition
- Latex (SBR, Nitrile, polychloroprene 100 g
carboxylated nitrile ...)
Dispersion - Filler (Kaolin, talc, white champagne water k silica, chalk, carbonate de cal 35 k 65 g
50% cium)
"- Sulfur 1 to 7 g
- Accelerators (NBT, MBTS, ZMBT, ZDBC, tetra
ethylenepentamine, amino
ethylpiperazine, xylendiamine ..) 1 k 13 g
"-Zinc oxide 6 & 10 g
"- Magnesium oxide 0 to 8 g
"- 0 to 13 g phenolic resin
"- dispersant (sodium polyacrylate sodium disulphonate ...) 3 k 6 g
"- Antifoam (cetyltrimethyl ammonium bromide, silicone, etc.) 0.3 k 1.5 8
- - Antioxidant (condensation product 0.5 k 1.5 g
diphenylamine acetone
butylated hydroxytoluene
mono dicumyldiphenylamine
hydroquinone benzyl ether)
- - Stabilizing agents
bis.p. cresol, alkylphenols, 0 k 4 g
p-aminophenol, phosphite
of alkylaryl, t.alkyl.p. cresol,
fatty alcohol and oxide condensate
ethylene, sodium sulfonate
oleyl p.anisidine)
Dispersion - Colorant (black for example) 3 k 8 8 aqueous to
30 %
Dispersion - Thickener (hydroxyethylcellulose, 7 k 16 g aqueous with hydroxypropylcellulose)
10 7.
A partir de cette composition générale du mélange, les exemples suivant se sont avérés particulièrement avantageux. From this general composition of the mixture, the following examples have proved to be particularly advantageous.
Exemple 1
Latex SBR 100 g
Soufre 3,60 g
Oxyde de zinc 8,00 g
Mercaptobenzothiazolate de zinc 7,81 g
Hercaptobenzothiazole 4,24 g
Kaolin 62,18 g
Colorant noir 5,81 g Hydrosyéthylcellulose 14,61 g
Agent antimousse 1,02 g
Agent dispersant 6,02 g
Agent antioxygène 0,75 g
Exemple 2
Latex polychloroprène 100 g
Oxyde magnésium 6,20 g
Oxyde zinc 9,46 g
Soufre 7,38 g
Dibutyldithiocarbamate de zinc 3,69 g
Talc 23,12 g
Blanc de champagne 25,92 g
Agent stabilisant 3,19 g
Agent antimousse 1,11 g
Agent dispersant 8,26 g
Colorant noir 4,73 g
Rydroxypropylcellulose 14,93 g
Exemple 3
Latex nitrile 100 g
Soufre 5,68 g
Oxyde de zinc 8,44 g
Mercaptobenzothiazole 3,09 g
Carbonate de calcium 39,40 g
Colorant noir 4,40 g
Agent aneimousse 0,51 g
Agent dispersant 4,82 g
Agent antioxygène 1,02 g
uydroxyéthylcellulose 11,72 g
Exemple 4
Latex nitrile carboxyle 100 g
Oxyde de zinc 7,92 g
Soufre 2,65 g
Disulfure de benzothiasilc 1,32 g
Resine phenolique 12,31 g
Craie 37,68 g
Silice 19,32 g
Colorant noir 3,64 g
Hydroxyéthylcellulose 7,92 g
Agent antimousse 0,42 g
Agent dispersant 3,26 g
Agent antioxygène 0,88 g
Pour bien localiser le revêtement k base de latex sur la partie 3 de la plaque de support, on peut utiliser un procédé dans lequel le mélange liquide est applique sur la plaque de support par serigraphie au moyen d'un écran de soie à mailles larges de l'ordre 2 de 0,25 à 1 mm2 par maille. Example 1
Latex SBR 100 g
Sulfur 3.60 g
Zinc oxide 8.00 g
Zinc mercaptobenzothiazolate 7.81 g
Hercaptobenzothiazole 4.24 g
Kaolin 62.18 g
Black dye 5.81 g Hydrosyethylcellulose 14.61 g
Antifoaming agent 1.02 g
Dispersing agent 6.02 g
Antioxidant 0.75 g
Example 2
Polychloroprene latex 100 g
Magnesium oxide 6.20 g
Zinc oxide 9.46 g
Sulfur 7.38 g
Zinc dibutyldithiocarbamate 3.69 g
Talc 23.12 g
Champagne white 25.92 g
Stabilizing agent 3.19 g
Antifoaming agent 1.11 g
Dispersing agent 8.26 g
Black dye 4.73 g
Rydroxypropylcellulose 14.93 g
Example 3
Nitrile latex 100 g
Sulfur 5.68 g
Zinc oxide 8.44 g
Mercaptobenzothiazole 3.09 g
Calcium carbonate 39.40 g
Black dye 4.40 g
Foam agent 0.51 g
Dispersing agent 4.82 g
Antioxidant 1.02 g
hydroxyethylcellulose 11.72 g
Example 4
Nitrile carboxyl latex 100 g
Zinc oxide 7.92 g
Sulfur 2.65 g
Benzothiasil disulfide 1.32 g
Phenolic resin 12.31 g
Chalk 37.68 g
Silica 19.32 g
Black dye 3.64 g
Hydroxyethylcellulose 7.92 g
Antifoaming agent 0.42 g
Dispersing agent 3.26 g
Antioxidant 0.88 g
To properly locate the latex-based coating on part 3 of the support plate, a method can be used in which the liquid mixture is applied to the support plate by screen printing using a wide mesh silk screen of the order 2 from 0.25 to 1 mm2 per mesh.
Il est également possible d'utiliser un procédé dans lequel le mélange liquide devant constituer le revêtement est déposé en multicordons jointifs sur la partie 3 de la plaque de support 2 au moyen d'un conduit ou rampe présentant une série de trous espacés au travers desquels est projeté sous pression le mélange à base de latex. It is also possible to use a method in which the liquid mixture intended to constitute the coating is deposited in contiguous multicords on the part 3 of the support plate 2 by means of a conduit or ramp having a series of spaced holes through which the latex-based mixture is sprayed under pressure.
Pour améliorer l'adhérence entre le revêtement contre la corrosion dans le cas de l'utilisation d'une peinture et le revêtement à base de latex, on procède simultanément eux opérations de volcanisation du revêtement en caoutchouc et de polymérisation de la peinture. To improve the adhesion between the coating against corrosion in the case of the use of a paint and the coating based on latex, the rubber coating and the polymerization of the paint are simultaneously carried out.
Ces opérations peuvent être effectuées soit en étuve, soit en four tunnel pendant 20 minutes à 1700C. These operations can be carried out either in an oven or in a tunnel oven for 20 minutes at 1700C.
Bien entendu la description n'est pas limitative et l'home de l'art pourra y apporter des modtfications sans sortir pour cela du domaine de l'invention. Of course, the description is not limiting and those skilled in the art may make modifications without departing from the scope of the invention.
Claims (6)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8101570A FR2498713B1 (en) | 1981-01-28 | 1981-01-28 | DISC BRAKE PAD |
| EP81402045A EP0056918B1 (en) | 1981-01-28 | 1981-12-22 | Disc brake plate |
| DE8181402045T DE3174025D1 (en) | 1981-01-28 | 1981-12-22 | Disc brake plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8101570A FR2498713B1 (en) | 1981-01-28 | 1981-01-28 | DISC BRAKE PAD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2498713A1 true FR2498713A1 (en) | 1982-07-30 |
| FR2498713B1 FR2498713B1 (en) | 1986-04-11 |
Family
ID=9254585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8101570A Expired FR2498713B1 (en) | 1981-01-28 | 1981-01-28 | DISC BRAKE PAD |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2498713B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1006289A3 (en) * | 1998-12-02 | 2000-06-28 | AlliedSignal Bremsbelag GmbH | Brake lining for disc brakes |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7036224U (en) * | 1970-09-30 | 1970-12-23 | Dow Corning Gmbh | BRAKE PAD. |
-
1981
- 1981-01-28 FR FR8101570A patent/FR2498713B1/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7036224U (en) * | 1970-09-30 | 1970-12-23 | Dow Corning Gmbh | BRAKE PAD. |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1006289A3 (en) * | 1998-12-02 | 2000-06-28 | AlliedSignal Bremsbelag GmbH | Brake lining for disc brakes |
| US6267206B1 (en) | 1998-12-02 | 2001-07-31 | Alliedsignal Bremsbelag Gmbh | Brake lining for disk brakes |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2498713B1 (en) | 1986-04-11 |
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