EP2243863A1 - Procédé chimique continu de patinage/satinage des alliages de zinc-titane - Google Patents

Procédé chimique continu de patinage/satinage des alliages de zinc-titane Download PDF

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Publication number
EP2243863A1
EP2243863A1 EP10159892A EP10159892A EP2243863A1 EP 2243863 A1 EP2243863 A1 EP 2243863A1 EP 10159892 A EP10159892 A EP 10159892A EP 10159892 A EP10159892 A EP 10159892A EP 2243863 A1 EP2243863 A1 EP 2243863A1
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Prior art keywords
chromium
treatment
acid
titanium
zinc
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EP10159892A
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German (de)
English (en)
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EP2243863B1 (fr
Inventor
Ernesto Caldana
Angelo Grandini
Matteo Damiani
Marco Bianchi
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Simar - Metalli Marghera SpA Soc
NP Coil Dexter Industries SRL
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Simar - Metalli Marghera SpA Soc
NP Coil Dexter Industries SRL
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    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/20—Other heavy 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
    • C23C22/06—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 acidic solutions with pH less than 6
    • C23C22/07—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 acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates
    • C23C22/10—Orthophosphates containing oxidants
    • 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
    • C23C22/06—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 acidic solutions with pH less than 6
    • C23C22/24—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 acidic solutions with pH less than 6 containing hexavalent chromium compounds
    • C23C22/33—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 acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also phosphates
    • 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
    • C23C22/06—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 acidic solutions with pH less than 6
    • C23C22/34—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 acidic solutions with pH less than 6 containing fluorides or complex fluorides
    • 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
    • C23C22/06—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 acidic solutions with pH less than 6
    • C23C22/40—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 acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
    • C23C22/44—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 acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
    • 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
    • C23C22/06—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 acidic solutions with pH less than 6
    • C23C22/48—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 acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/53—Treatment of zinc or alloys based thereon
    • 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
    • C23C22/73—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 characterised by the process
    • 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
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment
    • 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
    • C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
    • C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium

Definitions

  • the present invention relates to a continuous chemical patination/satinising treatment process for zinc-titanium alloys used in the construction industry, in particular for roofs, facades, guttering, interiors or architectural works.
  • Zinc-titanium alloy laminates are widely used in the construction industry, especially for roofing and cladding.
  • the natural appearance of these claddings can be varied by particular pre-patination surface treatments.
  • the known process normally comprises the following stages:
  • EP 827785 describes a process for the treatment of zinc-titanium laminates characterised by the use of a pickling bath based on nitric and sulphuric acid and a passivation stage with a polymer containing chromate.
  • the process of the invention comprises the following stages in particular:
  • Degreasing serves to eliminate all trace of oils, fats, cleaning paste, oxides and any other impurities from the coil surface, in order to have a perfectly clean metal surface ready for subsequent treatments.
  • said degreasing is performed with liquid products in aqueous solution at an alkaline pH (10-14).
  • the use concentration is between 1% and 10%, and the temperature of the working bath between 50°C and 70°C, for a treatment time of between 5 and 40 seconds, with spray pressures of between 1 and 4 bars.
  • the main elements of the degreasing bath are listed in Table 2 below.
  • Table 2 Element Concentration KOH or NaOH 2 - 20 g/l P 2 O 5 2 - 20 g/l Surfactants 200 - 3000 ppm Sequestering additives 1 - 10 g/l
  • P 2 O 5 is present either as orthophosphates (monosodium, disodium or trisodium phosphate) or as polyphosphates (tripolyphosphate or neutral pyrophosphate), all in the form of sodium or potassium salts.
  • the most commonly used surfactants are ethoxylated fatty alcohols with alcohol C9-C11 chain, C12-C13 or C12-C18, having different degrees of ethoxylation or containing different numbers of ethylene oxide moles.
  • the sequestering additives are organic compounds selected from nitriloacetic acid, sodium gluconate, gluconic acid, ethylenediaminetetraacetic acid disodium, ethylenediaminetetraacetic acid trisodium, phosphonates, acrylates and polyacrylates.
  • the first rinse with continuously fresh water serves to eliminate all trace of the preceding stage; the temperature is normally between 30°C and 60°C, with times ranging between 5 and 30 seconds, and spray application.
  • the chemical patination/satinising treatment is performed by pickling the zinc-titanium alloy with a surface attack between 5 and 20 g/m 2 .
  • the treatment is usually performed with a specific product at a pH of between 0 and 2, used at concentrations of between 10 and 15%.
  • the temperature of the working bath can be between 50% and 70%, for a reaction time of between 10 and 30 seconds; the spray pressures must be between 1 and 4 bars.
  • Table 3 Element Concentration H 2 SO 4 10-150 g/l Surfactants 1 - 15 g/l Process accelerant as NO 3 100 - 6000 ppm Sequestering agents 1 -100 g/l Elements deriving from pickling of the alloy Zn ⁇ 100 g/l Other metals originating from the alloy ⁇ 100 mg/l
  • the process accelerator can consist of NO 3 donor compounds such as nitric acid, ammonium nitrate, nickel nitrate, sodium nitrate, zinc nitrate, iron nitrate or cobalt nitrate, or nitrogenous organic compounds such as nitroguanidine, used alone or mixed together.
  • NO 3 donor compounds such as nitric acid, ammonium nitrate, nickel nitrate, sodium nitrate, zinc nitrate, iron nitrate or cobalt nitrate, or nitrogenous organic compounds such as nitroguanidine, used alone or mixed together.
  • the surfactants and agents are the same as already described.
  • the second rinse with continuously fresh water is performed as for the first rinse, to eliminate all trace of the preceding stage; the temperature is normally between 30°C and 60°C, with times ranging between 5 and 30 seconds, and spray application.
  • Pre-passivation which prevents the formation of zinc-oxides on the surface by increasing the anti-corrosion properties of the coil, is performed by treatment with a chromium-free bath containing zirconium and/or titanium and aluminium compounds.
  • the typical composition of a pre-passivation bath according to the invention is set out in Table 4 below.
  • the concentration of the product ranges between 1 and 5%, the temperature between 30 and 60°C, and the treatment times between 1 and 10 seconds; the product can be applied by spraying or immersion, and the pH value is ⁇ 5.
  • Table 4 Element Concentration Zr 100 - 5000 mg/l Ti 100 - 5000 mg/l Al 10 - 500 mg/l NH 3 100 - 1000 ppm
  • the zirconium compounds are preferably selected from fluorozirconic acid, ammonium zirconium carbonate and potassium fluozirconate;
  • the aluminium compounds are selected from aluminium oxide of various extractions (aluminas), aluminium fluoride and aluminium bifluoride;
  • the titanium compounds are selected from fluotitanic acid, titanium oxalate, titanium oxide and potassium fluotitanate.
  • Drying is then performed with hot air from 50 to 90°C.
  • the antifinger passivating product is applied with a Chem-Coater machine in two separate application stages, with a wet film drying step between each stage.
  • the inorganic component is applied at the first stage.
  • the inorganic component can be one of three different types:
  • the product consists of chromic acid, chromium phosphate, corrosion inhibitors such as zinc phosphate and zinc chromate, and reducing agents such as gluconic acid, citric acid, saccharose, hydroxylamine, methanol, hydrogen peroxide and starch.
  • Table 5 An example of the composition of the bath is shown in Table 5 below.
  • the product consists of phosphoric acid, chromium phosphate, chromium nitrate, complexing agents selected from salified phosphonates or acids, gluconic acid, citric acid, tartaric acid, EDTA, glycolic acid and/or polyacrylates, corrosion inhibitors such as colloidal silicon dioxides in suspension, possibly having different particle sizes, generally below 30 ⁇ m, and with a SiO 2 content of between 10 and 50%, and finally, organic wetting agents based on alkoxypolypropoxypolyethoxy-ethyl-benzylether or belonging to the perfluoroderivative family.
  • Table 6 An example of the composition of the bath is shown in Table 6 below.
  • the product consists of silanes, selected from the families of 1-propylamine,3-(triethoxysilyl)-silane and trimethoxy[3-(oxiranylmethoxy)-propyl]-silane, titanium salts deriving from fluotitanic acid, titanium oxalate, titanium oxide or potassium fluorotitanate, alkaline phosphates such as monobasic or dibasic ammonium phosphate, mono-, bi- or tribasic sodium phosphate, acid or neutral potassium pyrophosphate, alkaline nitrates such as ammonium nitrate, sodium nitrate or potassium nitrate, sequestering agents selected from nitriloacetic acid, sodium gluconate, gluconic acid, ethylenediaminetetraacetic acid disodium, ethylenediaminetetraacetic acid trisodium, phosphonates, acrylates and polyacrylates, and corrosion inhibitors based on heavy metal
  • Table 7 An example of the composition of the bath is shown in Table 7 below.
  • Table 7 Element Concentration SiO 2 10 - 150 g/l P 2 O 5 10-150 g/l V ⁇ 100 ppm Ti ⁇ 200 ppm
  • Drying is then performed with hot air from 50 to 90°C.
  • An antifinger agent is applied at the second stage, namely an aqueous solution of corrosion inhibitors such as zinc oxide and P 2 O 5 and an acrylic resin consisting of monomers based on butylacrylate, methylmethacrylate and acrylic acid, having the following characteristics:
  • the antifinger passivation product can also be applied in a single stage, with a Chem-Coater machine.
  • the bath is prepared with 1 part inorganic to 2 parts organic component, or 1 part inorganic to 3 parts organic component.
  • the quantity of mixture applied is 2 to 6 ml/m 2 .
  • the wet film is then dried at a belt temperature of 80 to 140°C.
  • Drying is typically performed with hot air at a temperature of between 60 and 80°C.
  • Drying is typically performed with hot air at a temperature of between 60 and 80°C.
  • Drying can be performed with hot air at a temperature of between 100 and 120°C.
  • Table 8 Code Pre-passivation Passivation version Passivation Component dose ratio Type of silane A 1 No 1 Biphasic A 1.2 No 1 Monophasic 2 : 1 A 1.3 No 1 Monophasic 3 : 1 A 2 No 2 Biphasic A 3.1 No 3 Biphasic ⁇ A 3.2 No 3 Biphasic ⁇ A 3.3 No 3 Biphasic ⁇ + ⁇ B 1 Yes 1 Biphasic B 1.2 Yes 1 Monophasic 2 : 1 B 1.3 Yes 1 Monophasic 3 : 1 B 2 Yes 2 Biphasic B 3.1 Yes 3 Biphasic ⁇ B 3.2 Yes 3 Biphasic ⁇ B 3.3 Yes 3 Biphasic ⁇ + ⁇
  • the zinc-titanium alloy panels treated were subjected to corrosion-resistance tests in a salt spray (fog) chamber, in accordance with Standard ASTM B 117, unprotected panels and panels with protected edges being checked for the appearance of the first white oxides.
  • Table 9 shows the results obtained, expressed as hours of exposure before the appearance of the first white oxidation phenomena.
  • Table 9 Code Hours of exposure Code Hours of exposure A 1 72 B 1 96 A 1.2 72 B 1.2 96 A 1.3 72 B 1.3 96 A 2 60 B 2 72 A 3.1 60 B 3.1 72 A 3.2 60 B 3.2 72 A 3.3 72 B.3.3 96

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Chemically Coating (AREA)
  • Catalysts (AREA)
EP20100159892 2009-04-21 2010-04-14 Procédé chimique continu de patinage/satinage des alliages de zinc-titane Not-in-force EP2243863B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2009A000665A IT1393946B1 (it) 2009-04-21 2009-04-21 Processo di trattamento in continuo di patinatura/satinatura chimica di leghe zinco-titanio

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EP2243863A1 true EP2243863A1 (fr) 2010-10-27
EP2243863B1 EP2243863B1 (fr) 2012-06-20

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102534599A (zh) * 2011-12-30 2012-07-04 大连三达奥克化学股份有限公司 铸造镁合金工件喷涂涂装前专用磷化剂及生产方法
CN103695892A (zh) * 2013-12-23 2014-04-02 奎克化学（中国）有限公司 用于镀锌材料的基于复合封闭技术的钝化液及其制备方法
CN107488845A (zh) * 2016-06-11 2017-12-19 上海梅山钢铁股份有限公司 一种用于镀锡钢板的无铬钝化液及其使用方法
CN107937893A (zh) * 2017-12-24 2018-04-20 无锡市恒利弘实业有限公司 一种铝或铝合金用环保钝化液及其制备方法和处理工艺
CN108149232A (zh) * 2017-12-24 2018-06-12 无锡市恒利弘实业有限公司 一种铝或七系铝合金用环保钝化液及其制备方法和处理工艺
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
CN109252152A (zh) * 2018-11-20 2019-01-22 重庆广仁铁塔制造有限公司 镀锌用无铬钝化剂及其制备方法
CN109321906A (zh) * 2018-12-05 2019-02-12 湖南恒佳新材料科技有限公司 一种耐腐蚀铝合金材料及其制备方法
CN109440093A (zh) * 2018-11-23 2019-03-08 佛山市海明威生态科技股份有限公司 一种铝材无铬钝化剂及其制备方法
US10400337B2 (en) 2012-08-29 2019-09-03 Ppg Industries Ohio, Inc. Zirconium pretreatment compositions containing lithium, associated methods for treating metal substrates, and related coated metal substrates
US10435806B2 (en) 2015-10-12 2019-10-08 Prc-Desoto International, Inc. Methods for electrolytically depositing pretreatment compositions
CN110607522A (zh) * 2019-10-12 2019-12-24 佛山市湾厦新材料科技有限公司 陶化剂及其制备方法和应用
CN112301338A (zh) * 2020-07-02 2021-02-02 上海兴赛尔表面材料有限公司 一种中低温快速固化的三价铬钝化液及其制造和使用方法
WO2021133863A1 (fr) * 2019-12-26 2021-07-01 Prc-Desoto International, Inc. Systèmes et procédés de traitement d'un substrat métallique
US11518960B2 (en) 2016-08-24 2022-12-06 Ppg Industries Ohio, Inc. Alkaline molybdenum cation and phosphonate-containing cleaning composition
EP4190941A4 (fr) * 2020-07-31 2024-01-03 Dipsol Chem Liquide de traitement de conversion chimique, procédé de traitement de conversion chimique dans lequel celui-ci est utilisé, et revêtement de conversion chimique

Citations (3)

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WO2003018872A1 (fr) * 2001-08-23 2003-03-06 Macdermid, Incorporated Procede de passivation sans chrome pour zinc et alliages au zinc
EP1433877A1 (fr) * 2002-12-24 2004-06-30 Nippon Paint Co., Ltd. Procédé de prétraitement avant revêtement

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CN102534599A (zh) * 2011-12-30 2012-07-04 大连三达奥克化学股份有限公司 铸造镁合金工件喷涂涂装前专用磷化剂及生产方法
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
US10920324B2 (en) 2012-08-29 2021-02-16 Ppg Industries Ohio, Inc. Zirconium pretreatment compositions containing molybdenum, associated methods for treating metal substrates, and related coated metal substrates
US10400337B2 (en) 2012-08-29 2019-09-03 Ppg Industries Ohio, Inc. Zirconium pretreatment compositions containing lithium, associated methods for treating metal substrates, and related coated metal substrates
CN103695892A (zh) * 2013-12-23 2014-04-02 奎克化学（中国）有限公司 用于镀锌材料的基于复合封闭技术的钝化液及其制备方法
CN103695892B (zh) * 2013-12-23 2016-03-02 奎克化学（中国）有限公司 用于镀锌材料的基于复合封闭技术的钝化液及其制备方法
US10435806B2 (en) 2015-10-12 2019-10-08 Prc-Desoto International, Inc. Methods for electrolytically depositing pretreatment compositions
US11591707B2 (en) 2015-10-12 2023-02-28 Ppg Industries Ohio, Inc. Methods for electrolytically depositing pretreatment compositions
CN107488845A (zh) * 2016-06-11 2017-12-19 上海梅山钢铁股份有限公司 一种用于镀锡钢板的无铬钝化液及其使用方法
CN107488845B (zh) * 2016-06-11 2019-11-19 上海梅山钢铁股份有限公司 一种用于镀锡钢板的无铬钝化液及其使用方法
US11518960B2 (en) 2016-08-24 2022-12-06 Ppg Industries Ohio, Inc. Alkaline molybdenum cation and phosphonate-containing cleaning composition
CN108149232A (zh) * 2017-12-24 2018-06-12 无锡市恒利弘实业有限公司 一种铝或七系铝合金用环保钝化液及其制备方法和处理工艺
CN107937893A (zh) * 2017-12-24 2018-04-20 无锡市恒利弘实业有限公司 一种铝或铝合金用环保钝化液及其制备方法和处理工艺
CN109252152B (zh) * 2018-11-20 2020-11-10 重庆广仁铁塔制造有限公司 镀锌用无铬钝化剂及其制备方法
CN109252152A (zh) * 2018-11-20 2019-01-22 重庆广仁铁塔制造有限公司 镀锌用无铬钝化剂及其制备方法
CN109440093A (zh) * 2018-11-23 2019-03-08 佛山市海明威生态科技股份有限公司 一种铝材无铬钝化剂及其制备方法
CN109321906A (zh) * 2018-12-05 2019-02-12 湖南恒佳新材料科技有限公司 一种耐腐蚀铝合金材料及其制备方法
CN110607522A (zh) * 2019-10-12 2019-12-24 佛山市湾厦新材料科技有限公司 陶化剂及其制备方法和应用
WO2021133863A1 (fr) * 2019-12-26 2021-07-01 Prc-Desoto International, Inc. Systèmes et procédés de traitement d'un substrat métallique
CN112301338A (zh) * 2020-07-02 2021-02-02 上海兴赛尔表面材料有限公司 一种中低温快速固化的三价铬钝化液及其制造和使用方法
EP4190941A4 (fr) * 2020-07-31 2024-01-03 Dipsol Chem Liquide de traitement de conversion chimique, procédé de traitement de conversion chimique dans lequel celui-ci est utilisé, et revêtement de conversion chimique

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