FR2847913A1 - Surface treatment of metal workpieces coated with a passivated zinc layer before coating with rubber comprises using finishing bath containing an organosilicon corrosion inhibitor and an organic adhesive compound - Google Patents

Surface treatment of metal workpieces coated with a passivated zinc layer before coating with rubber comprises using finishing bath containing an organosilicon corrosion inhibitor and an organic adhesive compound Download PDF

Info

Publication number
FR2847913A1
FR2847913A1 FR0214943A FR0214943A FR2847913A1 FR 2847913 A1 FR2847913 A1 FR 2847913A1 FR 0214943 A FR0214943 A FR 0214943A FR 0214943 A FR0214943 A FR 0214943A FR 2847913 A1 FR2847913 A1 FR 2847913A1
Authority
FR
France
Prior art keywords
finishing bath
chemical finishing
surface treatment
chemical
layer
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
Application number
FR0214943A
Other languages
French (fr)
Other versions
FR2847913B1 (en
Inventor
Thierry Schmitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electro Recherche SARL
Original Assignee
Electro Recherche SARL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electro Recherche SARL filed Critical Electro Recherche SARL
Priority to FR0214943A priority Critical patent/FR2847913B1/en
Publication of FR2847913A1 publication Critical patent/FR2847913A1/en
Application granted granted Critical
Publication of FR2847913B1 publication Critical patent/FR2847913B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16

Abstract

Surface treatment of metal workpieces coated with a passivated zinc layer before coating with rubber comprises immersing the workpiece for at least 30 seconds in an aqueous finishing bath of pH 7-9 and containing 10-40 wt.% organosilicon corrosion inhibitor and 10-45 wt.% organic adhesive. The workpiece is then removed from the bath and dried with hot air at 60-80 degrees C for about 15 minutes. Independent claims are given for: (a) a finishing bath used in the above surface treatment process; and (b) a metal workpiece having a dark-colored coating 8-15 microns thick, and prepared by the above surface treatment process.

Description

La présente invention concerne un procédé de traitement surfacique deThe present invention relates to a surface treatment method for

pièces métalliques recouvertes d'une couche de zinc passive  metal parts covered with a passive zinc layer

avant moulage d'un revêtement de caoutchouc sur ces pièces.  before molding a rubber coating on these parts.

Il est bien connu que, dans tous les domaines de l'industrie 5 tels qu'à titre d'exemple l'automobile, l'électroménager, la conserverie, ... il est nécessaire de protéger les pièces métalliques, en particulier les pièces en aluminium, en fer, en fonte ou en acier contre la corrosion.  It is well known that, in all fields of industry 5 such as, for example, the automobile, household appliances, the cannery, ... it is necessary to protect metal parts, in particular parts made of aluminum, iron, cast iron or steel against corrosion.

Parmi les procédés les plus couramment utilisés pour obtenir une telle protection, on peut mentionner la galvanisation qui est 10 connue depuis de nombreuses années.  Among the most commonly used methods for obtaining such protection, mention may be made of galvanization which has been known for many years.

Cette opération, qui consiste à recouvrir les pièces à protéger d'une couche de protection à base de zinc, le cas échéant allié, s'effectue en règle générale par électrozingage.  This operation, which consists of covering the parts to be protected with a protective layer based on zinc, if appropriate alloyed, is generally carried out by electro-zinc-coating.

Pour améliorer la protection contre la corrosion, on a pris 15 l'habitude d'associer à cette couche de galvanisation une couche de passivation à base de CrVI ou CrIII qui est appliquée sur la couche de galvanisation par trempage dans un bain de passivation.  To improve the protection against corrosion, it has become customary to associate with this galvanizing layer a passivation layer based on CrVI or CrIII which is applied to the galvanizing layer by dipping in a passivation bath.

La couche de passivation se forme par un mécanisme complexe mettant en jeu des réactions chimiques et électrochimiques entre 20 des composés contenus dans le bain de passivation et des éléments présents à la surface de la couche de galvanisation.  The passivation layer is formed by a complex mechanism involving chemical and electrochemical reactions between compounds contained in the passivation bath and elements present on the surface of the galvanizing layer.

Pour améliorer encore la protection anticorrosion des pièces ainsi traitées, il est connu d'appliquer sur celles-ci des couches supplémentaires étanches et hydrophobes, dites couches de finition, en les 25 trempant dans des bains de finition renfermant divers composés actifs pouvant être de nature minérale ou organique.  To further improve the anti-corrosion protection of the parts thus treated, it is known to apply thereto additional waterproof and hydrophobic layers, known as topcoats, by soaking them in finishing baths containing various active compounds which may be of a nature mineral or organic.

Les couches de finition de nature minérale se forment suite à la création de liaisons chimiques entre des éléments présents à la surface de la couche de passivation et des composés minéraux contenus dans 30 le bain de finition.  Mineral-type finish layers are formed as a result of the creation of chemical bonds between elements present on the surface of the passivation layer and mineral compounds contained in the finish bath.

Grâce à ces liaisons chimiques de telles couches de finition adhèrent mieux sur les couches de passivation que les couches de finition de nature organique dont l'adhérence ne résulte que de phénomènes de tension superficielle.  Thanks to these chemical bonds, such top layers adhere better to the passivation layers than the organic top layers, the adhesion of which results only from surface tension phenomena.

Il est fréquent que l'on doive mouler un revêtement de caoutchouc sur la surface de pièces métalliques notamment en acier ou aluminium recouvertes d'une couche de zinc passive.  It is common to have to mold a rubber coating on the surface of metal parts including steel or aluminum covered with a layer of passive zinc.

Il est cependant impossible de faire directement adhérer du caoutchouc sur la surface d'une pièce en acier ou en aluminium recouverte d'une couche de zinc passivé sans lui faire subir auparavant une préparation électrochimique, chimique ou mécanique adaptée.  However, it is impossible to directly adhere rubber to the surface of a steel or aluminum part covered with a layer of passivated zinc without first subjecting it to an appropriate electrochemical, chemical or mechanical preparation.

La présence d'une couche de finition minérale adhérant à la couche de passivation offre, en plus d'une amélioration des performances anticorrosion l'avantage de permettre un meilleur mouillage des produits adhésifs. Du caoutchouc ne peut toutefois pas adhérer directement 10 sur de telles couches de finition minérales.  The presence of a mineral finishing layer adhering to the passivation layer offers, in addition to an improvement in anti-corrosion performance, the advantage of allowing better wetting of the adhesive products. Rubber, however, cannot directly adhere to such mineral topcoats.

Par suite, pour obtenir une adhérence satisfaisante d'un revêtement de caoutchouc sur une couche de finition minérale, après vulcanisation, il est nécessaire d'appliquer successivement sur cette couche de finition deux couches d'encollage indépendantes à savoir une première 1 5 couche d'encollage ou couche adhésive, puis une seconde couche d'encollage ou couche cohésive.  Consequently, in order to obtain a satisfactory adhesion of a rubber coating on a mineral finishing layer, after vulcanization, it is necessary to successively apply to this finishing layer two independent layers of glue, namely a first layer of sizing or adhesive layer, then a second sizing layer or cohesive layer.

Cette double application s'effectue par pulvérisation, donc par un processus distinct de la ligne de traitement anticorrosion des pièces métalliques.  This double application is carried out by spraying, therefore by a process separate from the anticorrosion treatment line for metal parts.

Ce procédé classique présente l'inconvénient d'être onéreux tant en temps qu'en main-d'oeuvre, compte tenu du grand nombre d'étapes nécessaire à sa mise en oeuvre.  This conventional method has the disadvantage of being expensive both in terms of time and labor, given the large number of steps necessary for its implementation.

La présente invention a pour objet de remédier à cet inconvénient en proposant un procédé de traitement surfacique de pièces 25 métalliques recouvertes d'une couche de zinc passive, avant moulage d'un revêtement de caoutchouc, pouvant être mis en oeuvre directement dans la ligne de traitement anticorrosion des pièces métalliques et permettant d'appliquer sur celles-ci une couche de finition active présentant les propriétés anticorrosion d'une couche de finition minérale et les propriétés 30 adhésives d'une première couche d'encollage, donc de nature à se substituer à ces deux couches.  The object of the present invention is to remedy this drawback by proposing a method of surface treatment of metal parts covered with a layer of passive zinc, before molding a rubber coating, which can be implemented directly in the production line. anticorrosion treatment of metallic parts and enabling an active topcoat to be applied to them, having the anticorrosive properties of a mineral topcoat and the adhesive properties of a first sizing layer, therefore capable of replacing to these two layers.

Selon l'invention, ce procédé est caractérisé en ce que l'on trempe la pièce à traiter pendant au moins 30 secondes dans un bain de finition chimique ayant un pH compris entre 7 et 9 et constitué par une 35 solution aqueuse renfermant en proportions massiques entre 10 et 40 % de composés organo-siliciques présentant des propriétés anticorrosion et entre 10 et 45 % de composés organiques actifs présentant des propriétés adhésives, on sort la pièce du bain de finition chimique et on la sèche pendant environ 15 minutes à l'air chaud, à une température comprise entre 60 et 80'C.  According to the invention, this process is characterized in that the part to be treated is soaked for at least 30 seconds in a chemical finishing bath having a pH of between 7 and 9 and consisting of an aqueous solution containing in mass proportions between 10 and 40% of organo-silicic compounds having anticorrosion properties and between 10 and 45% of active organic compounds having adhesive properties, the part is removed from the chemical finishing bath and dried in air for approximately 15 minutes hot, at a temperature between 60 and 80'C.

Ce procédé permet d'appliquer sur des pièces métalliques recouvertes d'une couche de zinc passivé, une couche de finition active 5 dotée de propriétés anticorrosion et de propriétés adhésives par simple trempage dans un bain de finition chimique ayant une composition particulière adaptée, ce, de préférence à une température comprise entre 20 et 250C, c'est-à-dire à température ambiante.  This process makes it possible to apply to metallic parts covered with a layer of passivated zinc, an active finishing layer 5 endowed with anticorrosion and adhesive properties by simple soaking in a chemical finishing bath having a particular composition adapted, this preferably at a temperature between 20 and 250C, that is to say at room temperature.

Selon l'invention, l'efficacité du bain de finition chimique 10 peut être améliorée en agitant celui-ci, notamment en y insufflant un courant d'air.  According to the invention, the efficiency of the chemical finishing bath 10 can be improved by stirring it, in particular by blowing a stream of air into it.

L'étape de trempage dans ce bain peut avantageusement être mise en oeuvre directement sur la ligne de traitement anticorrosion des pièces métalliques, à l'extrémité de cette ligne, en remplacement de 1 5 l'étape classique de trempage dans le bain de finition minéral.  The step of soaking in this bath can advantageously be carried out directly on the anti-corrosion treatment line for metal parts, at the end of this line, replacing the conventional step of soaking in the mineral finishing bath. .

Selon l'invention les pièces métalliques revêtues de la couche de finition active peuvent être directement transférées au poste d'application par pulvérisation de la seconde couche d'encollage ou couche cohésive puis au poste de moulage du revêtement de caoutchouc.  According to the invention, the metal parts coated with the active finishing layer can be directly transferred to the application station by spraying the second sizing layer or cohesive layer and then to the molding station for the rubber coating.

Les composés organiques actifs présents au sein de la couche de finition active réagissent alors, à température élevée avec la couche cohésive pour permettre d'ancrer le caoutchouc sur les pièces.  The active organic compounds present within the active topcoat then react, at high temperature, with the cohesive layer to allow the rubber to be anchored on the parts.

Les avantages du procédé susmentionné conforme à l'invention sont bien entendu principalement liés à la composition parti25 culière du bain de finition chimique.  The advantages of the abovementioned process according to the invention are of course mainly linked to the particular composition of the chemical finishing bath.

Selon une autre caractéristique de l'invention, ce bain peut avantageusement renfermer entre 5 et 20 % de bis- 1,2-(triéthoxysilyl) éthane. Selon une autre caractéristique de l'invention, ce bain peut 30 avantageusement renfermer entre 5 et 20 % de vinyl-triméthoxysilane.  According to another characteristic of the invention, this bath can advantageously contain between 5 and 20% of bis-1,2- (triethoxysilyl) ethane. According to another characteristic of the invention, this bath can advantageously contain between 5 and 20% of vinyl-trimethoxysilane.

Ces deux composés coopèrent pour conférer à la couche de finition active ses propriétés anticorrosion.  These two compounds cooperate to give the active topcoat its anti-corrosion properties.

Selon une autre caractéristique de l'invention, le bain de finition chimique renferme entre 5 et 20 % de butoxypropane-2-ol.  According to another characteristic of the invention, the chemical finishing bath contains between 5 and 20% of butoxypropane-2-ol.

Selon une autre caractéristique de l'invention, le bain de finition chimique renferme entre 5 et 25 % de copolymères phénolformaldéhyde.  According to another characteristic of the invention, the chemical finishing bath contains between 5 and 25% of phenolformaldehyde copolymers.

Ces derniers composés correspondent à des isomères actifs qui coopèrent pour conférer à la couche de finition active ses propriétés adhésives permettant de rendre inutile l'étape d'application de la première couche d'encollage ou couche adhésive.  These latter compounds correspond to active isomers which cooperate to give the active topcoat its adhesive properties, making it unnecessary to apply the step of applying the first sizing layer or adhesive layer.

Selon l'invention, le bain de finition chimique peut bien entendu renfermer des additifs autres, en particulier entre 5 et 20 % d'éthanol et entre 1 et 10 % d'acide acétique.  According to the invention, the chemical finishing bath can of course contain other additives, in particular between 5 and 20% ethanol and between 1 and 10% acetic acid.

L'éthanol agit en tant que solvant des copolymères alors que l'acide acétique fait office de tampon de façon à amener le bain dans la 10 zone requise de pH.  Ethanol acts as a solvent for the copolymers while acetic acid acts as a buffer to bring the bath to the required pH range.

L'invention se rapporte également à un bain de finition chimique permettant la mise en oeuvre du procédé susmentionné.  The invention also relates to a chemical finishing bath allowing the implementation of the above-mentioned process.

Selon l'invention, ce bain est caractérisé en ce qu'il renferme en proportions massiques entre 5 et 20 % de bis15 1,2(triéthoxysilyl)éthane, entre 5 et 20 % de vinyl-triméthoxysilane, entre et 20 % de butoxypropane2-ol, entre 5 et 25 % de copolymères phénolformaldéhyde, entre 5 et 20 % d'éthanol et entre 1 et 10 % d'acide acétique, le complément à 100 % étant constitué par de l'eau.  According to the invention, this bath is characterized in that it contains in mass proportions between 5 and 20% of bis15 1,2 (triethoxysilyl) ethane, between 5 and 20% of vinyl-trimethoxysilane, between and 20% of butoxypropane2- ol, between 5 and 25% of phenolformaldehyde copolymers, between 5 and 20% of ethanol and between 1 and 10% of acetic acid, the complement to 100% being constituted by water.

L'invention se rapporte également à une pièce métallique 20 obtenue par la mise en oeuvre du procédé susmentionné.  The invention also relates to a metal part 20 obtained by implementing the above-mentioned method.

Une telle pièce métallique est caractérisée en ce qu'elle est recouverte d'une couche de finition active de couleur sombre ayant une épaisseur de l'ordre de 8 à 15 gim.  Such a metal part is characterized in that it is covered with an active finish layer of dark color having a thickness of the order of 8 to 15 gim.

Il est à noter que la présence de cette couche de finition ac25 tive ne modifie ni les cotes ni le poids des pièces métalliques recouvertes d'une couche de zinc passivé.  It should be noted that the presence of this active topcoat does not change the dimensions or the weight of the metal parts covered with a layer of passivated zinc.

Claims (8)

REVENDICATIONS 10) Procédé de traitement surfacique de pièces métalliques recouvertes d'une couche de zinc passivé avant moulage d'un revêtement de caoutchouc, caractérisé en ce que l'on trempe la pièce à traiter pendant au moins 30 secondes dans un bain de finition chimique ayant un pH compris entre 7 et 9 et constitué par une solution aqueuse renfermant en proportions massiques entre 10 et 40 % de composés organo siliciques présentant des propriétés anticorrosion et 10 entre 10 et 45 % de composés organiques actifs présentant des propriétés adhésives, on sort la pièce du bain de finition chimique et on la sèche pendant environ 15 minutes à l'air chaud, à une température comprise entre 60 et 80'C.  10) A method of surface treatment of metal parts covered with a layer of passivated zinc before molding a rubber coating, characterized in that the part to be treated is soaked for at least 30 seconds in a chemical finishing bath having a pH of between 7 and 9 and consisting of an aqueous solution containing in mass proportions between 10 and 40% of organosilicon compounds having anticorrosion properties and 10 between 10 and 45% of active organic compounds having adhesive properties, the part is removed of the chemical finishing bath and it is dried for about 15 minutes in hot air, at a temperature between 60 and 80 ° C. 20) Procédé selon la revendication 1, caractérisé en ce que la température du bain de finition chimique est de l'ordre de 20 à 25'C.  20) Method according to claim 1, characterized in that the temperature of the chemical finishing bath is of the order of 20 to 25'C. 3 ) Procédé selon l'une quelconque des revendications 1 et 2, 20 caractérisé en ce que l'on agite le bain de finition chimique de préférence en y insufflant un courant d'air.  3) A method according to any one of claims 1 and 2, characterized in that the chemical finishing bath is agitated preferably by blowing in a stream of air. 40) Procédé selon l'une quelconque des revendications 1 à 3, 25 caractérisé en ce que le bain de finition chimique renferme entre 5 et 20 % de bis1,2(triéthoxysilyl) éthane.  40) A method according to any one of claims 1 to 3, characterized in that the chemical finishing bath contains between 5 and 20% of bis1,2 (triethoxysilyl) ethane. 50) Procédé selon l'une quelconque des revendications 1 à 4, 30 caractérisé en ce que le bain de finition chimique renferme entre 5 et 20 % de vinyltriméthoxysilane.  50) Method according to any one of claims 1 to 4, 30 characterized in that the chemical finishing bath contains between 5 and 20% of vinyltrimethoxysilane. 60) Procédé selon l'une quelconque des revendications 1 à 5, 35 caractérisé en ce que le bain de finition chimique renferme entre 5 et 20 % de butoxypropane -2-ol. 7 ) Procédé selon l'une quelconque des revendications i à 6, caractérisé en ce que le bain de finition chimique renferme entre 5 et 25 % de copolymères phénol -formaldéhyde.  60) Method according to any one of claims 1 to 5, characterized in that the chemical finishing bath contains between 5 and 20% of butoxypropane -2-ol. 7) Method according to any one of claims i to 6, characterized in that the chemical finishing bath contains between 5 and 25% of phenol-formaldehyde copolymers. 8 ) Procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le bain de finition chimique renferme entre 5 et 20 % d'éthanol et entre 1 et 10 % d'acide acétique. 10 9 ) Bain de finition chimique permettant la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu' il renferme en proportions massiques entre 5 et 20 % de bis1 5 1,2(triéthoxysilyl)éthane, entre 5 et 20 % de vinyl-triméthoxysilane, entre et 20 % de butoxypropane-2-ol, entre 5 et 25 % de copolymères phénolformaldéhyde, entre 5 et 20 % d'éthanol et entre 1 et 10 % d'acide acétique, le complément à 100 % étant constitué par de l'eau.  8) Method according to any one of claims 1 to 8, characterized in that the chemical finishing bath contains between 5 and 20% ethanol and between 1 and 10% acetic acid. 9) Chemical finishing bath allowing the implementation of the method according to any one of claims 1 to 8, characterized in that it contains in mass proportions between 5 and 20% of bis1 5 1,2 (triethoxysilyl) ethane , between 5 and 20% of vinyl-trimethoxysilane, between and 20% of butoxypropane-2-ol, between 5 and 25% of phenolformaldehyde copolymers, between 5 and 20% of ethanol and between 1 and 10% of acetic acid, the complement to 100% being constituted by water. 10 ) Pièce métallique obtenue par la mise en oeuvre du procédé selon l'une  10) Metal part obtained by implementing the method according to one quelconque des revendications 1 à 8,  any of claims 1 to 8, caractérisée en ce qu' elle est recouverte d'une couche de finition active de couleur sombre ayant une épaisseur de l'ordre de 8 à 15 pm. 25  characterized in that it is covered with an active top coat of dark color having a thickness of the order of 8 to 15 μm. 25
FR0214943A 2002-11-28 2002-11-28 PROCESS FOR SURFACE TREATMENT OF METAL PARTS BEFORE MOLDING A RUBBER COATING AND A CHEMICAL FINISHING BATH AND A METAL PART THUS OBTAINED Expired - Fee Related FR2847913B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0214943A FR2847913B1 (en) 2002-11-28 2002-11-28 PROCESS FOR SURFACE TREATMENT OF METAL PARTS BEFORE MOLDING A RUBBER COATING AND A CHEMICAL FINISHING BATH AND A METAL PART THUS OBTAINED

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0214943A FR2847913B1 (en) 2002-11-28 2002-11-28 PROCESS FOR SURFACE TREATMENT OF METAL PARTS BEFORE MOLDING A RUBBER COATING AND A CHEMICAL FINISHING BATH AND A METAL PART THUS OBTAINED

Publications (2)

Publication Number Publication Date
FR2847913A1 true FR2847913A1 (en) 2004-06-04
FR2847913B1 FR2847913B1 (en) 2005-02-18

Family

ID=32309782

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0214943A Expired - Fee Related FR2847913B1 (en) 2002-11-28 2002-11-28 PROCESS FOR SURFACE TREATMENT OF METAL PARTS BEFORE MOLDING A RUBBER COATING AND A CHEMICAL FINISHING BATH AND A METAL PART THUS OBTAINED

Country Status (1)

Country Link
FR (1) FR2847913B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104988479A (en) * 2015-07-11 2015-10-21 合肥正浩机械科技有限公司 Flexible emulsified metal surface treatment agent and preparation method thereof
CN104988489A (en) * 2015-07-11 2015-10-21 合肥正浩机械科技有限公司 Flat and wiping-resisting metal surface treatment agent and preparation method thereof
CN105063630A (en) * 2015-07-13 2015-11-18 安徽瑞林汽配有限公司 Saponified metal surface treatment agent and preparation method thereof
CN105088202A (en) * 2015-07-11 2015-11-25 合肥正浩机械科技有限公司 Wax crystal whisker metal surface treatment agent and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995024517A1 (en) * 1994-03-07 1995-09-14 University Of Cincinnati Metal pretreated with an aqueous solution containing a dissolved inorganic silicate or aluminate, an organofunctional silane and a non-functional silane for enhanced corrosion resistance
US6071566A (en) * 1999-02-05 2000-06-06 Brent International Plc Method of treating metals using vinyl silanes and multi-silyl-functional silanes in admixture
WO2000039356A1 (en) * 1998-12-30 2000-07-06 University Of Cincinnati Silane coatings for bonding rubber to metals
WO2001005520A2 (en) * 1999-07-19 2001-01-25 The University Of Cincinnati Protective treatment of metal surfaces with aqueous mixture of vinyl silane and bis-silyl aminosilane

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995024517A1 (en) * 1994-03-07 1995-09-14 University Of Cincinnati Metal pretreated with an aqueous solution containing a dissolved inorganic silicate or aluminate, an organofunctional silane and a non-functional silane for enhanced corrosion resistance
WO2000039356A1 (en) * 1998-12-30 2000-07-06 University Of Cincinnati Silane coatings for bonding rubber to metals
US6071566A (en) * 1999-02-05 2000-06-06 Brent International Plc Method of treating metals using vinyl silanes and multi-silyl-functional silanes in admixture
WO2001005520A2 (en) * 1999-07-19 2001-01-25 The University Of Cincinnati Protective treatment of metal surfaces with aqueous mixture of vinyl silane and bis-silyl aminosilane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KEPING H ET AL: "A PROTECTIVE COATING OF SILICATE ON ZINCPLATE", MATERIALS AND CORROSION - WERKSTOFFE UND KORROSION, VCH VERLAGSGESELLSCHAFT, WEINHEIM, DE, vol. 48, no. 2, 1 February 1997 (1997-02-01), pages 110 - 112, XP000655404, ISSN: 0947-5117 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104988479A (en) * 2015-07-11 2015-10-21 合肥正浩机械科技有限公司 Flexible emulsified metal surface treatment agent and preparation method thereof
CN104988489A (en) * 2015-07-11 2015-10-21 合肥正浩机械科技有限公司 Flat and wiping-resisting metal surface treatment agent and preparation method thereof
CN105088202A (en) * 2015-07-11 2015-11-25 合肥正浩机械科技有限公司 Wax crystal whisker metal surface treatment agent and preparation method thereof
CN105063630A (en) * 2015-07-13 2015-11-18 安徽瑞林汽配有限公司 Saponified metal surface treatment agent and preparation method thereof

Also Published As

Publication number Publication date
FR2847913B1 (en) 2005-02-18

Similar Documents

Publication Publication Date Title
JP4376972B2 (en) How to prevent metal corrosion using silane
JP4439909B2 (en) Treatment to improve the corrosion resistance of the magnesium surface
US6071566A (en) Method of treating metals using vinyl silanes and multi-silyl-functional silanes in admixture
FR2684112A1 (en) USE OF IMMERSION TREATMENT AGENT FOR POST-TREATMENT OF CHROMATE OR PASSIVE GALVANIZATION LAYERS.
JP6784681B2 (en) Methods for making cladding plates, including application of aqueous solutions containing amino acids, and their related use to improve compatibility with adhesives.
EP1760166A3 (en) Steel tube having improved corrosion-resistance and method for manufacturing the same
FR2847913A1 (en) Surface treatment of metal workpieces coated with a passivated zinc layer before coating with rubber comprises using finishing bath containing an organosilicon corrosion inhibitor and an organic adhesive compound
WO2017195806A1 (en) Aluminum alloy material production method, aluminum alloy material, and bonded object
FR2551466A1 (en) PROCESS FOR THE PREPARATION OF IMPROVED ZN-NI ALLOY GALVANICALLY COATED STEEL SHEET
EP1204784A1 (en) Anti-corrosion method and treatment for a metal substrate pretreated with a zinc-based protective coating layer
AU645616B2 (en) Color-coated article and method for producing the same
JPS6372887A (en) Production of hot dip coated steel sheet having excellent corrosion resistance and working resistance
KR100676523B1 (en) Preprocessing method for hot-dip aluminizing
EP0285593B1 (en) Method for increasing the corrosion resistance of a quenched and self-tempered reinforcement bar made of steel
JPH06316640A (en) Method for bonding metal to organic material such as rubber, plastic and coating or the like
JP2747554B2 (en) Aluminum / zinc alloy-plated steel sheet and method for producing the same
JP4785225B2 (en) Pretreatment method for automotive aluminum alloy wheel coating
BE1013517A3 (en) Galvanizing process for steel plates.
FR2879219A1 (en) Surface treatment of a component coated with zinc to form a passivation film with improved corrosion resistance and rubber adhesion, for motor vehicle, household appliance and conservation applications
BE1011315A6 (en) Method for forming a zinc-aluminium coating on a steel component and a component coated in this way
FR2788284A1 (en) Silicon-containing steel sheet chemical pretreatment prior to hot coating used in automobile structural part production involves degreasing and submersing in pickling bath containing fluorine ions to remove silicon from steel surface
KR920009843B1 (en) Coating method for al-cu-si-alloy
JP6721406B2 (en) Aluminum alloy material, aluminum alloy material with adhesive resin layer, method for producing aluminum alloy material, and method for producing aluminum alloy material with adhesive resin layer
CA2565931C (en) Hot galvanizing bath for parts made of any grade of steel
FR2820152A1 (en) Coloring of galvanizd metal components by dipping in a pH controlled chemical coloring bath

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse

Effective date: 20130731