CN1409657A - Method for producing coated metal surfaces and its use - Google Patents

Method for producing coated metal surfaces and its use Download PDF

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Publication number
CN1409657A
CN1409657A CN00817111A CN00817111A CN1409657A CN 1409657 A CN1409657 A CN 1409657A CN 00817111 A CN00817111 A CN 00817111A CN 00817111 A CN00817111 A CN 00817111A CN 1409657 A CN1409657 A CN 1409657A
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CN
China
Prior art keywords
coating
aforementioned
pretreating agent
coated
pretreating
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.)
Pending
Application number
CN00817111A
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Chinese (zh)
Inventor
H·多梅斯
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.)
Chemetall GmbH
Original Assignee
Chemetall GmbH
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 Chemetall GmbH filed Critical Chemetall GmbH
Publication of CN1409657A publication Critical patent/CN1409657A/en
Pending legal-status Critical Current

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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

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

The production method of coated metal surfaces and application thereof
The present invention relates to a kind of production method of coated metal surfaces, can finish coating at a high speed in the method.This type coating is used for band with term " volume is coated with " now.
The shortcoming of known high speed coating process is preliminary treatment and primes and will carry out in two separation steps.
The purpose of this invention is to provide a kind of industrialized preparing process that is coated with the varnish-treated tape steel, preliminary treatment and to prime be only to carry out in the method in an operation sequence.
The objective of the invention is by pretreating agent being coated on the metal surface that cleaned and/or pickling, and with per minute at least the coating speed of 25m produce that the method for coated metal surfaces reaches, it is characterized in that, pending metal surface through the cleaning and/or pickling after, on at least one surface of metallic object, be coated with at least with a kind of pretreating agent, particularly solution and/or dispersion, on pretreated part surface be coated with one deck enamelled coating at least thereafter, thus, will be only with pretreating agent and need not coat with lacquer coatings prepared and replace pretreatment layer and prime coat as processing layer.
In addition, the objective of the invention is by pretreating agent being coated on the metal surface that cleaned and/or pickling, and with per minute at least the coating speed of 25m produce that the method for coated metal surfaces reaches, it is characterized in that, pending metal surface through the cleaning and/or pickling after, on at least one surface of metallic object, be coated with one deck pretreating agent at least, particularly solution and/or dispersion, on pretreated at least part surface be coated with a kind of enamelled coating thereafter, thus, will replace pretreatment layer and prime coat as handling coating with the coating that pre-treatment treatment is crossed.
This pretreated face is preferably the one side of band, when needing, but the also part preliminary treatment of narrow side of band.
The preferred 40-600m/ branch of coating speed, preferred especially 75-160m/ branch.At this moment handle coating and bear the function of priming.Another part pretreating surface no longer is coated with on the band coating apparatus thereafter with lacquer.
Method of the present invention can be used like this, promptly remains on humidity in the pretreatment layer of coating or residual humidity till japanning, so that pretreating surface is the required electric conductivity of coating enamelled coating.
Metal surface before the preliminary treatment is particularly including aluminium, iron, copper, magnesium, zinc and/or tin, and preferably is made up of the zinc-full material or the galvanized iron sheet of aluminium alloy, galvanizing by dipping or electrogalvanising iron material, steel, band or sheet material form.Object can be flat or be shaped, not have or have the space as having pore structure.The space of orifice plate can all be same geometry and size, or also can be different geometries and size when needing: for example circular port, elongated hole, seam.
The cleaning of metal surface and/or pickling can be by spraying with cleaning solution or Acidwash solution or scrubbing or immerse in the bath of these solution and carry out.
Through the preliminary treatment on the cleaning and/or the surface of pickling can by spray and for example with the roller extruding, by spray and for example with compressed air purge, by dipping and for example with the roller extruding, by dipping with for example purge or realize with method of roll coating with compressed air.Under the roller coat situation, treat liquid is applied with conveyer belt direction or anti-conveyer belt direction with applicator roll.In all these schemes, without flushing thereafter, to avoid degrading or damage and avoid the environment reason must be to coating through the flushing water that is loaded with chemical reagent of the post processing of costliness.
Pretreating agent can be a kind of preparation, it contains polymeric dispersions, contains in this dispersion at least aly to be selected from acrylate, epoxides, polyester, silicon polyester, polyurethane, cinnamic resin and based on resin or its mixture and/or the mixed polymer of urea-formaldehyde.Said preparation also contains nonvolatile film forming mixture except that containing volatile component.Said preparation can contain at least a resin as solution and/or dispersion.Said preparation also can contain inorganic additive at least a dissolved form and/or fine-powdered, for example carbonate, chromate, oxide, phosphate, silicate, sulfate except that resinous.
Also a kind of not resiniferous preparation of pretreating agent, at this moment said preparation can contain chromate, chromic acid, silicate, silane, tannin, titanium, zinc, the zirconium of aluminium, fluoride, hydrofluoric acid, phosphate, phosphoric acid, trivalent or sexavalence and/or the molecule that itself organises, for example based on the molecule of phosphonate ester, carboxylic acid, thiol and/or silane.
For the coating of sheet metal strip, can select the another kind of pretreating agent different for use to the one side of band, at this moment to the not available pretreating agent coating that contains organic resin of the face of japanning thereafter with another side.At this moment, when needing as only the one side of band for example above japanning, and this preliminary treatment is to handle as final on its reverse side.
Behind the coating pretreating agent, this coating or part are dry or parch.Especially in identical belt speed with utilizing under the situation of existing stove, can flow by the time of staying under active drying condition, by the low temperature in the stove and/or by low air to the drying of band changes.
Preferably the one side of pretreating surface covers with organic coating, and this coating is fully sclerosis or crosslinked in 1 second-3 minutes, especially preferably in 5 seconds-2 minutes.
For the coating of pretreating surface, preferably be coated with powdery lacquer and oven dry particularly a kind of powdery lacquer that aspect shaping, has good mechanical performance, high scratch resistance trace, good adhesiveness and high flexibility.This powdery lacquer can be by spraying, whirl-sintering and/or coating of powder atomization technology or oven dry.EP-A-0 678 466 has described powder atomization technology.Oven dry can pass through the conducting drying when magnetic material especially or by infra-red drying, particularly drying replaces common drying by circulating air or suspension drying by circulating air to realize in near-infrared (NIR).
Pretreatment layer or the processing layer thickness after absolutely dry is 0.1-50 μ m, preferred 0.5-10 μ m, preferred especially 1-3 μ m.
Can be 5-1000 μ m, preferred 10-400 μ m, preferred especially 15-60 μ m at the enamelled coating of the oven dry on the pretreatment layer bed thickness after crosslinked.When using the PVC-plastisol, the suggestion bed thickness remains 100-300 μ m.
In a kind of preferred version of the inventive method, coating individual layer finish coat varnish is as unique lacquer on band to be applied.
Adopt pretreating agent can form one deck processing layer, this layer can play preliminary treatment and rise simultaneously to prime.Priming is to play anticorrosion, adhesiveness and flexible function, does not play a part attractive in appearance to a great extent.
Under powdery lacquer situation, can adopt the powder of the powder that forms monochromatic unstructuredness coating, the powder that forms polychrome unstructuredness coating and/or the structural coating of formation polychrome.
The surface that applied can be protected by film or adhesive film to small part, particularly for example prevents that it is impaired in storage, transportation and reprocessing process.
Can be when the object that applied needs through being shaped, cutting, particularly vertical and/or horizontal smear metal can be shaped when needing again, as crimp, cold bending, deep-draw and/or crimping.
Product by the inventive method manufacturing can be used as wainscot and outer panels, apparatus front panel as home appliances and small electric apparatus, the utensil of decorating outer panels is particularly arranged, especially for the multihole lamina and the sound insulation panel of loudspeaker, the demarcation strip in room, partition wall, furniture parts, stand, car panel and interior of aircraft panel be surface, framework and framing component in accordance with rites, the pad plate, lighting device.

Claims (23)

1. method of making coated metal surfaces, its coating speed is at least the 25m/ branch, 40-600m/ branch particularly, preferred 75-160m/ branch, at this moment pretreating agent is coated on the metal surface that cleaned and/or pickling, it is characterized in that, pending metal surface through the cleaning and/or pickling after, on at least one face of metallic object, be coated with at least a pretreating agent, particularly solution and/or dispersion, on pretreated part surface, be coated with one deck enamelled coating at least afterwards, thus, with only with the coating of pretreating agent and the preparation that need not coat with lacquer as pretreatment layer to replace prime coat and pretreatment layer.
2. method of making coated metal surfaces, its coating speed is at least the 25m/ branch, 40-600m/ branch particularly, preferred 75-160m/ branch, at this moment pretreating agent is coated on the metal surface that cleaned and/or pickling, it is characterized in that, pending metal surface through the cleaning and/or pickling after, on at least one face of metallic object, be coated with at least a pretreating agent, particularly solution and/or dispersion, on pretreated part surface at least, be coated with one deck enamelled coating at least afterwards, thus, the coating that will cross with pre-treatment treatment as processing layer to replace prime coat and pretreatment layer.
3. claim 1 or 2 method is characterized in that, humidity or residual humidity in the pretreatment layer of coating are remained to japanning, so that pretreating surface is the required electric conductivity of coating enamelled coating.
4. the method for one of aforementioned claim, it is characterized in that, metal surface before the preliminary treatment comprises aluminium, iron, copper, magnesium, zinc and/or tin, and preferably is made up of the zinc-full material or the galvanized iron sheet of aluminium alloy, galvanizing by dipping or electrogalvanising iron material, steel, band or sheet material form.
5. the method for one of aforementioned claim is characterized in that, with cleaning solution or Acidwash solution by spraying and/or scrubbing or by implementing cleaning and/or pickling in the bath of immersing this solution.
6. the method for one of aforementioned claim is characterized in that, pretreating agent by spray and for example with the roller extruding, by spray and for example with compressed air purge, by dipping and extruding, by dipping with purge or apply with method of roll coating.
7. the method for one of aforementioned claim, it is characterized in that, pretreating agent is a kind of preparation, it contains polymeric dispersions, contains in this dispersion at least aly to be selected from acrylate, epoxides, polyester, silicon polyester, polyurethane, cinnamic resin and based on resin or its mixture and/or the mixed polymer of urea-formaldehyde.
8. the method for one of aforementioned claim is characterized in that, pretreating agent is a kind of preparation, and it contains at least a resin as solution and/or dispersion.
9. the method for one of aforementioned claim is characterized in that, said preparation also contains inorganic additive at least a dissolved form and/or fine-powdered, for example carbonate, chromate, oxide, phosphate, silicate, sulfate except that resinous.
10. the method for one of aforementioned claim, it is characterized in that, pretreating agent is a kind of not resiniferous preparation, and said preparation contains chromate, chromic acid, silicate, the molecule that itself organises, silane, tannin, titanium, zinc and/or the zirconium of aluminium, fluoride, hydrofluoric acid, phosphate, phosphoric acid, trivalent or sexavalence.
11. the method for one of aforementioned claim is characterized in that, for the coating of sheet metal strip, can select the another kind of pretreating agent different with another side for use to the one side of band, at this moment to the not available pretreating agent coating that contains organic resin of the face of japanning thereafter.
12. the method for claim 6 is characterized in that, and is dry or parch through part with the layer of pretreating agent coating.
13. the method for one of aforementioned claim is characterized in that, the one side of pretreating surface covers with organic coating, and this coating is fully sclerosis or crosslinked in 1 second-3 minutes, especially preferably in 5 seconds-2 minutes.
14. the method for claim 13 is characterized in that, for the coating of pretreating surface, is coated with powdery lacquer and oven dry, particularly a kind of powdery lacquer that has good mechanical performance, high scratch resistance trace, good adhesiveness and high flexibility aspect shaping.
15. the method for one of aforementioned claim is characterized in that, this powdery lacquer can be by spraying, whirl-sintering and/or coating of powder atomization technology or oven dry.
16. the method for one of aforementioned claim is characterized in that, pretreatment layer or the processing layer thickness after absolutely dry is 0.1-50 μ m, preferred 0.5-10 μ m, preferred especially 1-3 μ m.
17. the method for one of aforementioned claim is characterized in that, the bed thickness of the enamelled coating of oven dry after crosslinked is 5-1000 μ m, preferred 10-400 μ m, preferred especially 15-60 μ m.
18. the method for one of aforementioned claim is characterized in that, applies the individual layer finish coat varnish as unique lacquer under high-speed.
19. the method for one of aforementioned claim is characterized in that, forms processing layer with pretreating agent, this layer plays preliminary treatment and primes.
20. the method for one of aforementioned claim is characterized in that, adopts the powder of the powder that forms monochromatic unstructuredness coating, the powder that forms polychrome unstructuredness coating and/or the structural coating of formation polychrome.
21. the method for one of aforementioned claim is characterized in that, the surface that applied to small part is protected by film or adhesive film.
22. the method for one of aforementioned claim is characterized in that, can be when the object that applied needs through being shaped, cutting, and particularly vertical and/or horizontal smear metal can be shaped when needing again, as crimp, cold bending, deep-draw and/or crimping.
23. the product that the method for claim 1-22 is made is as wainscot and outer panels, apparatus front panel as home appliances and small electric apparatus, the utensil of decorating outer panels is particularly arranged, particularly as the multihole lamina of loudspeaker and the panel that insulates against sound, the demarcation strip in room, partition wall, furniture parts, stand, car panel and interior of aircraft panel be surface, framework and framing component in accordance with rites, the pad plate, the application of lighting device.
CN00817111A 1999-12-17 2000-12-14 Method for producing coated metal surfaces and its use Pending CN1409657A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19961411.3 1999-12-17
DE19961411A DE19961411A1 (en) 1999-12-17 1999-12-17 Process for the production of coated metal surfaces and their use

Publications (1)

Publication Number Publication Date
CN1409657A true CN1409657A (en) 2003-04-09

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CN00817111A Pending CN1409657A (en) 1999-12-17 2000-12-14 Method for producing coated metal surfaces and its use

Country Status (10)

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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)

Cited By (7)

* Cited by examiner, † Cited by third party
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
CN1935392B (en) * 2005-09-21 2012-07-04 拉塞斯坦有限公司 Method for the passivation of the surface of coated metal bands and device for the application of the passive layer on a metal coated steel band
CN102762313A (en) * 2010-02-26 2012-10-31 住友轻金属工业株式会社 Conductive precoated aluminum alloy sheet
CN102896082A (en) * 2012-10-22 2013-01-30 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
CN107321575A (en) * 2017-07-03 2017-11-07 重庆科技学院 Point welding powdered alloy sized roller applicator
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

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BR112015004364B1 (en) 2012-08-29 2021-06-01 Ppg Industries Ohio, Inc METHOD TO TREAT A METALLIC SUBSTRATE AND METHOD TO COATING A METALLIC SUBSTRATE
US10125424B2 (en) 2012-08-29 2018-11-13 Ppg Industries Ohio, Inc. Zirconium pretreatment compositions containing molybdenum, associated methods for treating metal substrates, and related coated metal substrates
US11518960B2 (en) 2016-08-24 2022-12-06 Ppg Industries Ohio, Inc. Alkaline molybdenum cation and phosphonate-containing cleaning composition
DE102018209553A1 (en) 2018-06-14 2019-12-19 Voestalpine Stahl Gmbh METHOD FOR PRODUCING LACQUER-COATED ELECTRIC TAPES AND LACQUER-COATED ELECTRIC TAPE
FR3135316A1 (en) 2022-05-06 2023-11-10 Commissariat A L'energie Atomique Et Aux Energies Alternatives SURFACE TREATMENT METHOD FOR IMPROVING THE PERFORMANCE OF A THERMODYNAMIC SYSTEM WITH ABSORPTION CYCLE

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Cited By (9)

* Cited by examiner, † Cited by third party
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
CN1935392B (en) * 2005-09-21 2012-07-04 拉塞斯坦有限公司 Method for the passivation of the surface of coated metal bands and device for the application of the passive layer on a metal coated steel band
CN102762313A (en) * 2010-02-26 2012-10-31 住友轻金属工业株式会社 Conductive precoated aluminum alloy sheet
CN102896082A (en) * 2012-10-22 2013-01-30 江苏奥新新能源汽车有限公司 Coating process
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
CN107321575A (en) * 2017-07-03 2017-11-07 重庆科技学院 Point welding powdered alloy sized roller applicator
CN107321575B (en) * 2017-07-03 2019-06-07 重庆科技学院 Point welding powdered alloy sized roller applicator
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

Also Published As

Publication number Publication date
DE19961411A1 (en) 2001-06-21
US20030051772A1 (en) 2003-03-20
CA2394235A1 (en) 2001-06-21
ZA200205289B (en) 2003-07-28
EP1242193B1 (en) 2003-08-27
AU2010401A (en) 2001-06-25
EP1242193A2 (en) 2002-09-25
DE50003490D1 (en) 2003-10-02
WO2001043888A2 (en) 2001-06-21
ES2203539T3 (en) 2004-04-16
ATE248032T1 (en) 2003-09-15
WO2001043888A3 (en) 2001-12-06
AU774014C (en) 2005-04-28
AU774014B2 (en) 2004-06-10

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