CA2394235A1 - Method for producing coated metal surfaces and the use of said metal surfaces - Google Patents
Method for producing coated metal surfaces and the use of said metal surfaces Download PDFInfo
- Publication number
- CA2394235A1 CA2394235A1 CA002394235A CA2394235A CA2394235A1 CA 2394235 A1 CA2394235 A1 CA 2394235A1 CA 002394235 A CA002394235 A CA 002394235A CA 2394235 A CA2394235 A CA 2394235A CA 2394235 A1 CA2394235 A1 CA 2394235A1
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- CA
- Canada
- Prior art keywords
- layer
- pretreatment agent
- lacquer
- pretreatment
- strip
- 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.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Chemically Coating (AREA)
- Paints Or Removers (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention relates to a method for producing coated metal surfaces at a coating speed of at least 25 m per minute during the application of a pre- treating agent to a cleaned and/or pickled metal surface. The inventive meth od is characterized by applying at least one pre-treating agent to at least one surface of a metal body after cleaning and/or pickling the metal surface to be treated. At least one lacquer layer is applied to a part of the pre-treated surface, the coating produced only by the pre-treating agent and not by the lacquer being used as the treatment layer instead of a priming or pre- treatment layer. The invention further relates to a method for producing coated metal surfaces at a coating speed of at least 25 m per minute during the application of a pre-treating agent to a cleaned and/or pickled metal surface. The inventive method is characterized by applying at least one pre- treating agent to at least one surface of a metal body after cleaning and/or pickling the metal surface to be treated. At least one lacquer layer is applied to at least a part of the pre-treated surface, the coating produced only by the pre-treating agent being used as the treatment layer instead of a priming or pre-treatment layer.
Description
METHOD FOR PRODUCING COATED METAL SURFACES AND THE
USE OF SAID METAL SURFACES
The greseat i.z~yr.ntion relates to a method for producing coated metal surfaces in which the coating cari be carried out at high speed. such coatings are often. used under the description "coif. coatit~.g" to coat strip materials .
The knoe,oa high-speed coati.ag methods have the disadvasitage that the pretreatment and the priming (primer) are applied is two separate steps.
The object of the invention is to provide a pxvceaa for the 7.args-scale industrial production of lacquered strip material~ iri which the pretreatment and priming Can be applied ~ only one work stage.
This object 3s achieved by s proceaD for producing abated saetal surfaces at a coat~.ng speed of at least 25 m par tniriute in the app7.icatioa of a pretreatment agent to a cleaned azid/or piGkl.ed metal surface, which is characterised in that at. least oaQ pretreatment agent, iri particular a solution and/or dispersion, is applied to at least one surface of a metal body after a cleaning aad/vr a pickling of the metal surface to be treated and at least ane lacquer layer is them. applied to a part of the pratxeated surface, with the coati~,g produced auly using a pretreatm~eat ag~t and not using a lacquer being used, instead of a pretreatment layer and a priming layer, as treattne~t Zayer .
Furthezttlore the obi ect is achieved by a process for preducir~.g coated, metal surfaces ar a coating spe~ad of at least 25 m per minute j.n the application of a pretreatmar~t agent to a cleaned and/or p~,ckled metal Surface, which is characterised in that at least one pretreatment agent, in ..,. ,.,.. -~.r...... acz~8ruuize gas particular a solution and/or dispersion, is applied to at least one surface of a rnotal body after a cleaning and/or a pickli~ag of the metal surface tc be treated and at least one lacqsier layer is then, applied to a part of the s pxezreated surface, with the coating treated with a pretreatment agent being used, iuBtead v~ a pretreatment layer and a priming layer, as treatment layer.
preferably the pretreated surfac~ or surfaces form otZe side of a strip, in which optionally at least one of the narrow edge surfaces of the strip may also be partially pretreated.
Th~ coating speed ie preferably 40 to 5a0 m per minute, ~s particularly preferably.'75 to 160 m per minute. The treatment layer thereby'aesu~aes the functions of the primer. The other part of the pretreated surf$Ce is "' subsequently x~.o longer coated with a lacguer in the strip coating device. ' The method according to the invention cnay be employed eo that moisture or residual moisture is retained in the applied pretreatmexat layer until. lacquering is performed, in order to adjust the necessary electrical conductivity of Zs the pretreated surface for the application of the lacquer layer.
The metal suxface may before r,hs pretreatment contain in particular alumsaium, iron, coppQr, magnesium, zinc and/or 3o tits and may preferably coixsist of an aluminium alloy, a hot-dip galvanised or electrolytically galvanised iron material, a steel, a full zinc material in the form of strips or metal sheets, or tinplate. In this connection the bodies may be flat or shaped, or may be provided with 35 rece~rses, such as for example with a pe=toratec3 3tzv.ctvre .
wv vt/~~oao ~ r~.aiar~t~iii.s~
USE OF SAID METAL SURFACES
The greseat i.z~yr.ntion relates to a method for producing coated metal surfaces in which the coating cari be carried out at high speed. such coatings are often. used under the description "coif. coatit~.g" to coat strip materials .
The knoe,oa high-speed coati.ag methods have the disadvasitage that the pretreatment and the priming (primer) are applied is two separate steps.
The object of the invention is to provide a pxvceaa for the 7.args-scale industrial production of lacquered strip material~ iri which the pretreatment and priming Can be applied ~ only one work stage.
This object 3s achieved by s proceaD for producing abated saetal surfaces at a coat~.ng speed of at least 25 m par tniriute in the app7.icatioa of a pretreatment agent to a cleaned azid/or piGkl.ed metal surface, which is characterised in that at. least oaQ pretreatment agent, iri particular a solution and/or dispersion, is applied to at least one surface of a metal body after a cleaning aad/vr a pickling of the metal surface to be treated and at least ane lacquer layer is them. applied to a part of the pratxeated surface, with the coati~,g produced auly using a pretreatm~eat ag~t and not using a lacquer being used, instead of a pretreatment layer and a priming layer, as treattne~t Zayer .
Furthezttlore the obi ect is achieved by a process for preducir~.g coated, metal surfaces ar a coating spe~ad of at least 25 m per minute j.n the application of a pretreatmar~t agent to a cleaned and/or p~,ckled metal Surface, which is characterised in that at least one pretreatment agent, in ..,. ,.,.. -~.r...... acz~8ruuize gas particular a solution and/or dispersion, is applied to at least one surface of a rnotal body after a cleaning and/or a pickli~ag of the metal surface tc be treated and at least one lacqsier layer is then, applied to a part of the s pxezreated surface, with the coating treated with a pretreatment agent being used, iuBtead v~ a pretreatment layer and a priming layer, as treatment layer.
preferably the pretreated surfac~ or surfaces form otZe side of a strip, in which optionally at least one of the narrow edge surfaces of the strip may also be partially pretreated.
Th~ coating speed ie preferably 40 to 5a0 m per minute, ~s particularly preferably.'75 to 160 m per minute. The treatment layer thereby'aesu~aes the functions of the primer. The other part of the pretreated surf$Ce is "' subsequently x~.o longer coated with a lacguer in the strip coating device. ' The method according to the invention cnay be employed eo that moisture or residual moisture is retained in the applied pretreatmexat layer until. lacquering is performed, in order to adjust the necessary electrical conductivity of Zs the pretreated surface for the application of the lacquer layer.
The metal suxface may before r,hs pretreatment contain in particular alumsaium, iron, coppQr, magnesium, zinc and/or 3o tits and may preferably coixsist of an aluminium alloy, a hot-dip galvanised or electrolytically galvanised iron material, a steel, a full zinc material in the form of strips or metal sheets, or tinplate. In this connection the bodies may be flat or shaped, or may be provided with 35 rece~rses, such as for example with a pe=toratec3 3tzv.ctvre .
wv vt/~~oao ~ r~.aiar~t~iii.s~
The xeeesses of a perforated plate may all have the same geometry and eyes, or may optiox~,ally also have different geoQtetries and sizes. for ex.~ernple Circular holes, elongate holes or slits.
s The aleaniug and/or th~ pickling of the metal surfaces may be carried out by spraying and/or brushirig wa.th a cleaning and/or pickling solution or immexaioa in a bath of this solution.
to The pretreatment of the cleaaaed and/or pickled surface may be performed by spraying and squemaiag out, far exatseple with a roller, by spraying and blowing off, for example with compressed air. by immersion and egueezing out, for 15 example with a roller, by immersion and blowing off, for example with compressed nix or in a roll-coat process.
With the roll-coat process the treatment liquid is app7.ied with a coating roller in or against the direction of mowetaent of the strip. Za all these process variants, no 20 sub$equent rinsing ie performed in order to prevent removing and/or dattsa.ging the applied layer and to avoid rinse water loaded with chemicals, wh3,ch for enviroz~,mantal reasons, would have to be po9t-treated in a complex procedure.
The pretreatment agent may be a preparation containing a polymer dispersion with at least one resin fxo7n the group consysting of aorylate, epoxide, phenol, polyester, silicone polyester, polyurethane, styrene and urea-3o formaldehyde based resin or a mixture thereof and/or a mixed polymer.' The preparation coataina, apart from volatile constituents, a non-volatile film-forming mixture.
The preparation tray contain at least one resin as solution and/or as dispersion. The preparation tray contain. apart ~rotn r~ain(a) , at les,st orse inorgaa3,c additive in diaao~.ved 110 01/~t3lltfii form and/or as a finely divided powder, for exampl~ s.
carbonate, chrom,atte, oxide, phosphate, silicate or sulfate_ The pretreatment agent msy also be a resin-free s preparation, with it being possible for the preparation to coritain aluminium, fluoride, hydrofluoric said, pho~phate, phosphoric acid, trivalent and/or hexavalent chromate, chromic acid, silicate, silasse, t~unrsir~,, titanium. sine, zirconium an.d/or self-organising molecules, for example to based on phosphonatee, carboxylic acids, thiol8 and/or silanes_ Fox the applicata.on to a metal strip a different pretr~attnent agent may be chosen for ore side of the strip 15 than fat the other aide, with it baiag possible for the side not intended to be subsequently lacquered to be coated ~rith a pretreatment agent containing organic resin. For example only one side of the strip, say the upper side, is possib7.y lacquered, whereas, on the opposite side, the 20 pretrea~tmeat acts as a final treatment .
After the applicatian of the treatment agent the layer may either be partially dried or completely dried. This may be carried out - especially with uniform strip speeds and when as using exist~.ng_ovcas - by a shorter re~aidonce time under the active d~-y~.~ng conditions, by a lower temperature in the oven, and/or by a reduced air movement for the drying of the strip.
3o Pxaf~rably at least one side of the pr~treated surface is eQated with an, organic coating that hardens sufficiently and/or cros6links in a time from 1 second up to 3 minutes, particularly preferably from 5 seconds up co 2 minutes.
..~ v.n, wvvv For the coating of the pretreated surface, a poarder laeguer, in partscular a powder leaguer having good mechaaiCal properties, high scratch zes.istaace, good adhe~ior~ and high flexibility as regards forming axed shaping, ~.s preferab3.y applied and stowed. The powder lacquer may ix~, this corureotion bC applied by spxayiag~
fluidised-bed powder sintering ax~.d~or powder cloud technology and stowed. Powder cloud technology is described i,~n" inter alia, EP-A-0 6'?8 X46&. Instead of by IO conventional circulating air drying or fluidised air dry3ag, the seoving may be carried out by, in p:rtiaulsr by conductive drying using magnetic materials, andjor by infra-red drying, in particular in the near infra-red t~xRs .
is The pretreatment layer a~ndlor tre:tment layer may, aftor complete drying, have a layer thickness in the range from o _ ~ to sa dun, preferably in the range from o . 5 to 10 ~.~m, particularly preferably in the range from Z to 3 Win.
no After the crosslinking, the stoned lacguer layer that ie corztained on the pre-treatment layer may have a layer thickness in the ra~ngs from S to 1000 Vim, preferably in the range from 1o to 400 Vim, ar~,d particularly preferably is the 25 range from 15 to 60 Vim. 'When. using P'V'C plast~.sols it is possible to recommend selection of a layer thickness in the range f rdm 10 0 t o 3 0 0 ,butt .
In a preferred embodime~at of the enethc~d nrcordiag to the 3o invention a oac-layer cover lacquer ie applied as a single lacquer to the strip to be coated.
A treatnneent layer that performs the function of a pretreatment anoT at th~ aaMe time that of a primer can be 11V Vil~iVlV - _ , ~ --S
formed with the pre, treatment agent. The primer ixt. this connection perfozms the function o~ coxroaion pz~evsation, satisfies the adhesion and flexibility requirements, and to a mir~.or extent al9o pertorrns an aestb.etic fuzzatiox~,.
Theres may be used for the powder lacquer a ponder for a single-colour uxistructured coating, a powder for a multicolour t,~astructurcd coat~.ng, and/or a powder for a multicolour structv.red contiag.
The coated surface may be protected,. is particular a~gaiaat mechanical damage, for example during storage, transportation sad fuxther proeoseirig, at least p3x~tially by a film oz adhesive fa.ltn.
is The coated bodies may optionally be shaped, cut -especially in the longitudinal and/or transverse direction - and optionahy re-formed, for example beaded, roll-formed, deep-drawn axsd/or edged.
The product$ formed by the method according to the invention may be used as internal and external panelling, e~,uipment panell3.ag, c _ g. for domestic app3.ianoes and small electrical instruments, is particular with decorated ZS exterrial panelling, perforated metal sheets, especially for loudspeakers and sound it~ulatit~g claddiz~g, xpac~ dividers, partitions, furniture units, shalving, internal panelling for vehicles and aircraft, such as for example dashboardsliastrument pan.~is, frame and frame constructions, facing matezials sad ~.ighti.z~g i~tallazions .
s The aleaniug and/or th~ pickling of the metal surfaces may be carried out by spraying and/or brushirig wa.th a cleaning and/or pickling solution or immexaioa in a bath of this solution.
to The pretreatment of the cleaaaed and/or pickled surface may be performed by spraying and squemaiag out, far exatseple with a roller, by spraying and blowing off, for example with compressed air. by immersion and egueezing out, for 15 example with a roller, by immersion and blowing off, for example with compressed nix or in a roll-coat process.
With the roll-coat process the treatment liquid is app7.ied with a coating roller in or against the direction of mowetaent of the strip. Za all these process variants, no 20 sub$equent rinsing ie performed in order to prevent removing and/or dattsa.ging the applied layer and to avoid rinse water loaded with chemicals, wh3,ch for enviroz~,mantal reasons, would have to be po9t-treated in a complex procedure.
The pretreatment agent may be a preparation containing a polymer dispersion with at least one resin fxo7n the group consysting of aorylate, epoxide, phenol, polyester, silicone polyester, polyurethane, styrene and urea-3o formaldehyde based resin or a mixture thereof and/or a mixed polymer.' The preparation coataina, apart from volatile constituents, a non-volatile film-forming mixture.
The preparation tray contain at least one resin as solution and/or as dispersion. The preparation tray contain. apart ~rotn r~ain(a) , at les,st orse inorgaa3,c additive in diaao~.ved 110 01/~t3lltfii form and/or as a finely divided powder, for exampl~ s.
carbonate, chrom,atte, oxide, phosphate, silicate or sulfate_ The pretreatment agent msy also be a resin-free s preparation, with it being possible for the preparation to coritain aluminium, fluoride, hydrofluoric said, pho~phate, phosphoric acid, trivalent and/or hexavalent chromate, chromic acid, silicate, silasse, t~unrsir~,, titanium. sine, zirconium an.d/or self-organising molecules, for example to based on phosphonatee, carboxylic acids, thiol8 and/or silanes_ Fox the applicata.on to a metal strip a different pretr~attnent agent may be chosen for ore side of the strip 15 than fat the other aide, with it baiag possible for the side not intended to be subsequently lacquered to be coated ~rith a pretreatment agent containing organic resin. For example only one side of the strip, say the upper side, is possib7.y lacquered, whereas, on the opposite side, the 20 pretrea~tmeat acts as a final treatment .
After the applicatian of the treatment agent the layer may either be partially dried or completely dried. This may be carried out - especially with uniform strip speeds and when as using exist~.ng_ovcas - by a shorter re~aidonce time under the active d~-y~.~ng conditions, by a lower temperature in the oven, and/or by a reduced air movement for the drying of the strip.
3o Pxaf~rably at least one side of the pr~treated surface is eQated with an, organic coating that hardens sufficiently and/or cros6links in a time from 1 second up to 3 minutes, particularly preferably from 5 seconds up co 2 minutes.
..~ v.n, wvvv For the coating of the pretreated surface, a poarder laeguer, in partscular a powder leaguer having good mechaaiCal properties, high scratch zes.istaace, good adhe~ior~ and high flexibility as regards forming axed shaping, ~.s preferab3.y applied and stowed. The powder lacquer may ix~, this corureotion bC applied by spxayiag~
fluidised-bed powder sintering ax~.d~or powder cloud technology and stowed. Powder cloud technology is described i,~n" inter alia, EP-A-0 6'?8 X46&. Instead of by IO conventional circulating air drying or fluidised air dry3ag, the seoving may be carried out by, in p:rtiaulsr by conductive drying using magnetic materials, andjor by infra-red drying, in particular in the near infra-red t~xRs .
is The pretreatment layer a~ndlor tre:tment layer may, aftor complete drying, have a layer thickness in the range from o _ ~ to sa dun, preferably in the range from o . 5 to 10 ~.~m, particularly preferably in the range from Z to 3 Win.
no After the crosslinking, the stoned lacguer layer that ie corztained on the pre-treatment layer may have a layer thickness in the ra~ngs from S to 1000 Vim, preferably in the range from 1o to 400 Vim, ar~,d particularly preferably is the 25 range from 15 to 60 Vim. 'When. using P'V'C plast~.sols it is possible to recommend selection of a layer thickness in the range f rdm 10 0 t o 3 0 0 ,butt .
In a preferred embodime~at of the enethc~d nrcordiag to the 3o invention a oac-layer cover lacquer ie applied as a single lacquer to the strip to be coated.
A treatnneent layer that performs the function of a pretreatment anoT at th~ aaMe time that of a primer can be 11V Vil~iVlV - _ , ~ --S
formed with the pre, treatment agent. The primer ixt. this connection perfozms the function o~ coxroaion pz~evsation, satisfies the adhesion and flexibility requirements, and to a mir~.or extent al9o pertorrns an aestb.etic fuzzatiox~,.
Theres may be used for the powder lacquer a ponder for a single-colour uxistructured coating, a powder for a multicolour t,~astructurcd coat~.ng, and/or a powder for a multicolour structv.red contiag.
The coated surface may be protected,. is particular a~gaiaat mechanical damage, for example during storage, transportation sad fuxther proeoseirig, at least p3x~tially by a film oz adhesive fa.ltn.
is The coated bodies may optionally be shaped, cut -especially in the longitudinal and/or transverse direction - and optionahy re-formed, for example beaded, roll-formed, deep-drawn axsd/or edged.
The product$ formed by the method according to the invention may be used as internal and external panelling, e~,uipment panell3.ag, c _ g. for domestic app3.ianoes and small electrical instruments, is particular with decorated ZS exterrial panelling, perforated metal sheets, especially for loudspeakers and sound it~ulatit~g claddiz~g, xpac~ dividers, partitions, furniture units, shalving, internal panelling for vehicles and aircraft, such as for example dashboardsliastrument pan.~is, frame and frame constructions, facing matezials sad ~.ighti.z~g i~tallazions .
Claims (22)
1. Method for producing coated metal surfaces at a coating speed of at least 25 m per minute in the application of at least one pretreatment agent to a cleaned and/or pickled metal surface of a metal strip, characterised in that at least one pretreatment agent is applied to at least one side of the strip after a cleaning and/or a pickling of the metal surface to be treated and at least one lacquer layer is then applied to at least a part of the pretreated surface, in particular on one side of the strip, the coating produced with a pretreatment agent and not with a lacquer is used, instead of a priming and pretreatment layer, as treatment layer, with the side of the strip not intended to be subsequently lacquered being preferably coated with a pretreatment agent containing an organic resin, the side of the strip intended to be subsequently lacquered being coated with at least one pretreatment agent, preferably with a pretreatment agent that is different to that used for the side of the strip not intended to be subsequently lacquered, and the at least one lacquer layer being applied as powder lacquer to the pretreated side of the strip intended to be subsequently lacquered, and is stoved.
2. Method according to claim 1, characterised in that the moisture or residual moisture in the applied pretreatment layer is retained until the lacquering in order to adjust the necessary electrical conductivity of the pretreated surface for the application of the lacquer layer.
3. Method according to claim 1 or 2, characterised in that the metal surface contains before the pretreatment aluminium, iron, copper, magnesium, zinc and/or tin and preferably consists of an aluminium alloy, a hot-dip galvanised or electrolytically galvanised iron material, a steel, or a full zinc material in the form of strips.
4. Method according to one of the preceding claims, characterised in that the cleaning and/or the pickling is carried out by spraying and/or brushing with a cleaning and/or pickling solution or immersion in a bath of this solution.
5. Method according to one of the preceding claims, characterised in that the pretreatment agent is applied by spraying and squeezing out with a roller or by immersion and squeezing out with a roller or by a roll-coat process.
6. Method according to one of the preceding claims, characterised in that the pretreatment agent is a preparation that contains a polymer dispersion with at least one resin from the group consisting of acrylate, epoxide, phenol, polyester, silicone polyester, polyurethane, styrene and urea-formaldehyde based resin or a mixture thereof and/or a mixed polymer.
7. Method according to one of the preceding claims, characterised in that the pretreatment agent is a preparation that contains at least one resin in the form of a solution and/or dispersion.
8. Method according to one of the preceding claims, characterised in that the pretreatment agent is a preparation that contains, apart from resin(s), at least one inorganic additive in dissolved form and/or as finely divided powder, for example a carbonate, chromate, oxide, phosphate, silicate or sulfate.
9. Method according to one of the preceding claims, characterised in that the pretreatment agent is a resin-free preparation that contains aluminium, fluoride, hydrofluoric acid, phosphate, phosphoric acid, trivalent and/or hexavalent chromate, chromic acid, silicate, self-organising molecules, silane, tannin, titanium, zinc and/or zirconium.
10. Method according to one of the preceding claims, characterised in that, for the application to a strip a pretreatment agent is selected for one side of the strip that is different to that selected for the other side, with it being possible for the side that is not intended to be subsequently lacquered to be coated with a pretreatment agent containing organic resin.
11. Method according to claim 5, characterised in that the layer applied with the pretreatment agent is either partially dried or completely dried.
12. Method according to one of the preceding claims, characterised in that at least one side of the pretreated surface is coated with an organic coating that hardens and/or crosslinks sufficiently in a time of 1 second up to 3 minutes, preferably in a time of 5 seconds up to 2 minutes.
13. Method according to claim 12, characterised in that, for the coating of the pretreated surface, a powder lacquer having good mechanical properties, high scratch resistance, good adhesion and high flexibility with regard to forming and shaping is applied and stoved.
14. Method according to one of the preceding claims, characterised in that the powder lacquer is applied by spraying, fluidised-bed powder sintering and/or powder cloud technology and stoved.
15. Method according to one of the preceding claims, characterised in that, after complete drying, the pretreatment layer and/or treatment layer has a layer thickness in the range from 0.1 to 50 µm, preferably in the range from 0.5 to 10 µm, particularly preferably in the range from 1 to 3 µm.
16. Method according to one of the preceding claims, characterised in that the stoved lacquer layer after the crosslinking has a layer thickness in the range from 5 to 1000 µm, preferably in the range from 10 to 400 µm, particularly preferably in the range from 15 to 60 µm.
17. Method according to one of the preceding claims, characterised in that a single-layer cover lacquer is applied as sole lacquer at high speed.
18. Method according to one of the preceding claims, characterised in that a treatment layer that performs the function of a pretreatment and primer is formed with the pre-treatment agent.
19. Method according to one of the preceding claims, characterised in that a powder for a single-colour unstructured coating, a powder for a multicolour unstructured coating, and/or a powder for a multicolour structured coating is used.
20. Method according to one of the preceding claims, characterised is that the coated surface is protected at least partially by a film or adhesive film.
21. Method according to one of the preceding claims, characterised in that the coated bodies are optionally shaped or formed, cut - especially in the longitudinal and/or transverse direction - and optionally re-formed, for example beaded, roll-formed, deep-drawn and/or edged.
22.Use of the products produced by the method according to claims 1 to 21 as internal and external panelling, equipment panelling, e.g. for domestic appliances and small electrical instruments, in particular with decorated external panelling, perforated metal sheets, especially for loudspeakers and sound insulating cladding, space dividers, partitions, furniture units shelving, internal panelling for vehicles and aircraft, such as for example dashboards/instrument panels, frame and frame constructions, facing materials and lighting installations.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19961411A DE19961411A1 (en) | 1999-12-17 | 1999-12-17 | Process for the production of coated metal surfaces and their use |
| DE19961411.3 | 1999-12-17 | ||
| PCT/EP2000/012745 WO2001043888A2 (en) | 1999-12-17 | 2000-12-14 | Method for producing coated metal surfaces and the use of said metal surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2394235A1 true CA2394235A1 (en) | 2001-06-21 |
Family
ID=7933395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002394235A Abandoned CA2394235A1 (en) | 1999-12-17 | 2000-12-14 | Method for producing coated metal surfaces and the use of said metal surfaces |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20030051772A1 (en) |
| EP (1) | EP1242193B1 (en) |
| CN (1) | CN1409657A (en) |
| AT (1) | ATE248032T1 (en) |
| AU (1) | AU774014C (en) |
| CA (1) | CA2394235A1 (en) |
| DE (2) | DE19961411A1 (en) |
| ES (1) | ES2203539T3 (en) |
| WO (1) | WO2001043888A2 (en) |
| ZA (1) | ZA200205289B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320163C (en) * | 2003-10-28 | 2007-06-06 | 尚志精密化学股份有限公司 | Electro-plating coating and japanning method |
| DE102005045034A1 (en) * | 2005-09-21 | 2007-03-29 | Rasselstein Gmbh | Method for passivating the surface of coated metal strips and device for applying the passive layer to a metal-coated steel strip |
| DE102008059014A1 (en) | 2008-05-28 | 2009-12-03 | Basf Coatings Ag | Process for coating metal strips |
| JP5079037B2 (en) * | 2010-02-26 | 2012-11-21 | 住友軽金属工業株式会社 | Conductive pre-coated aluminum alloy plate for electrical or electronic equipment housing |
| IN2015DN01537A (en) | 2012-08-29 | 2015-07-03 | Ppg Ind Ohio Inc | |
| RU2609585C2 (en) | 2012-08-29 | 2017-02-02 | Ппг Индастриз Огайо, Инк. | Zirconium pretreatment compositions containing lithium, associated methods for treating metal substrates, and related coated metal substrates |
| CN102896082B (en) * | 2012-10-22 | 2014-11-05 | 江苏奥新新能源汽车有限公司 | Coating process |
| CN105457872A (en) * | 2015-12-31 | 2016-04-06 | 芜湖市金宇石化设备有限公司 | Coating process of frame |
| KR20190043155A (en) | 2016-08-24 | 2019-04-25 | 피피지 인더스트리즈 오하이오 인코포레이티드 | Alkaline compositions for treating metal substrates |
| CN107321575B (en) * | 2017-07-03 | 2019-06-07 | 重庆科技学院 | Point welding powdered alloy sized roller applicator |
| DE102018209553A1 (en) | 2018-06-14 | 2019-12-19 | Voestalpine Stahl Gmbh | METHOD FOR PRODUCING LACQUER-COATED ELECTRIC TAPES AND LACQUER-COATED ELECTRIC TAPE |
| CN109107857A (en) * | 2018-11-08 | 2019-01-01 | 北京星航机电装备有限公司 | A kind of supersonic vehicle body method for coating surface |
| FR3135316B1 (en) | 2022-05-06 | 2024-05-03 | Commissariat Energie Atomique | SURFACE TREATMENT METHOD FOR IMPROVING THE PERFORMANCE OF A THERMODYNAMIC SYSTEM WITH ABSORPTION CYCLE |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3961993A (en) * | 1971-11-18 | 1976-06-08 | The Empire Plating Company | Coated metal article and method of coating |
| US3790355A (en) * | 1971-11-18 | 1974-02-05 | Empire Plating Co | Coated metal article and method of coating |
| US5279863A (en) * | 1989-10-10 | 1994-01-18 | David A. Lundy | Electrostatic powder coating apparatus and method |
| US5059446A (en) * | 1990-02-14 | 1991-10-22 | Armco Inc. | Method of producing plastic coated metal strip |
| US5314090A (en) * | 1992-03-23 | 1994-05-24 | Terronics Development Corporation | Material feeder |
| US5455080A (en) * | 1992-08-26 | 1995-10-03 | Armco Inc. | Metal substrate with enhanced corrosion resistance and improved paint adhesion |
| US5439704A (en) * | 1993-10-27 | 1995-08-08 | Hunter Engineering Company, Inc. | Combined coil and blank powder coating |
| DE4409306A1 (en) * | 1994-03-18 | 1995-09-21 | Basf Ag | Process for modifying metal surfaces |
| DE19633742A1 (en) * | 1996-08-22 | 1998-02-26 | Sundwiger Eisen Maschinen | Process and installation for applying a coating agent, in particular paint, to a strip of metal, in particular steel, in one pass |
| DE19725780A1 (en) * | 1997-06-18 | 1998-12-24 | Metallgesellschaft Ag | Applying plastic to metallic parts |
| IL134925A0 (en) * | 1997-09-17 | 2001-05-20 | Brent Int Plc | Method and compositions for preventing corrosion of metal substrates |
| GB2334906A (en) * | 1998-03-02 | 1999-09-08 | British Steel Plc | Laminated metal strip |
-
1999
- 1999-12-17 DE DE19961411A patent/DE19961411A1/en not_active Withdrawn
-
2000
- 2000-12-14 WO PCT/EP2000/012745 patent/WO2001043888A2/en active IP Right Grant
- 2000-12-14 DE DE50003490T patent/DE50003490D1/en not_active Expired - Lifetime
- 2000-12-14 ES ES00983330T patent/ES2203539T3/en not_active Expired - Lifetime
- 2000-12-14 US US10/148,814 patent/US20030051772A1/en not_active Abandoned
- 2000-12-14 CN CN00817111A patent/CN1409657A/en active Pending
- 2000-12-14 AT AT00983330T patent/ATE248032T1/en not_active IP Right Cessation
- 2000-12-14 CA CA002394235A patent/CA2394235A1/en not_active Abandoned
- 2000-12-14 EP EP00983330A patent/EP1242193B1/en not_active Expired - Lifetime
- 2000-12-14 AU AU20104/01A patent/AU774014C/en not_active Ceased
-
2002
- 2002-07-02 ZA ZA200205289A patent/ZA200205289B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU774014C (en) | 2005-04-28 |
| ES2203539T3 (en) | 2004-04-16 |
| AU774014B2 (en) | 2004-06-10 |
| WO2001043888A2 (en) | 2001-06-21 |
| DE19961411A1 (en) | 2001-06-21 |
| ZA200205289B (en) | 2003-07-28 |
| EP1242193B1 (en) | 2003-08-27 |
| DE50003490D1 (en) | 2003-10-02 |
| ATE248032T1 (en) | 2003-09-15 |
| EP1242193A2 (en) | 2002-09-25 |
| WO2001043888A3 (en) | 2001-12-06 |
| AU2010401A (en) | 2001-06-25 |
| US20030051772A1 (en) | 2003-03-20 |
| CN1409657A (en) | 2003-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |