WO2014104428A1 - 아연도금강판용 표면처리 조성물, 아연도금강판의 표면처리 방법 및 아연도금강판 - Google Patents
아연도금강판용 표면처리 조성물, 아연도금강판의 표면처리 방법 및 아연도금강판 Download PDFInfo
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- WO2014104428A1 WO2014104428A1 PCT/KR2012/011664 KR2012011664W WO2014104428A1 WO 2014104428 A1 WO2014104428 A1 WO 2014104428A1 KR 2012011664 W KR2012011664 W KR 2012011664W WO 2014104428 A1 WO2014104428 A1 WO 2014104428A1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium as the next major constituent
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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
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/1208—Oxides, e.g. ceramics
- C23C18/1216—Metal oxides
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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
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/122—Inorganic polymers, e.g. silanes, polysilazanes, polysiloxanes
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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
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1229—Composition of the substrate
- C23C18/1241—Metallic substrates
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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
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
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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
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
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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
- 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
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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
- 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
- C23C22/42—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 phosphates
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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
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0614—Strips or foils
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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
- 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
- C23C2222/20—Use of solutions containing silanes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12556—Organic component
- Y10T428/12569—Synthetic resin
Definitions
- the present invention relates to a surface treatment composition for galvanized steel sheet, a surface treatment method of a galvanized steel sheet and a galvanized steel sheet. More specifically, to improve the corrosion resistance and blackening resistance of the steel sheet having a zinc plated layer containing magnesium (Mg) and aluminum (Al).
- Steel plate with a galvanized layer containing magnesium (Mg) and aluminum (Al) as a corrosion resistant material of red blue has most of the exposed surface made of zinc (Zn) or zinc alloy (Zn alloy). When exposed to the atmosphere, white rust occurs on the surface. In addition, since magnesium and aluminum contained in the plating layer have better oxygen affinity than zinc, when the oxygen bound to zinc is insufficient, blackening occurs easily.
- the metal surface was pretreated with chromate of 5 to 100 mg / m 2 and then an organic film was formed.
- additional pretreatment facilities and processes were required, as well as the safety of workers due to heavy metal wastewater.
- the hexavalent chromium-containing solution generated in the wash water and waste water has to be processed according to a special treatment process, there is a problem that the manufacturing cost increases, and chromate-treated plated steel also has a problem of eluting chromium ion during use or disposal There was a serious environmental pollution problem.
- a surface treatment agent such as a metal coating for corrosion resistance containing no chromium.
- Patent Document 1 discloses a surface treatment agent composed of zirconium carbonate, vanadil ions, zirconium compounds and the like, which has good corrosion resistance but is vulnerable to blackening resistance.
- Patent Document 2 discloses a surface treatment agent composed of a titanium-based, zirconium-based, phosphoric acid-based, molybdenum-based compound and the like, but black molten galvanized steel sheet using magnesium (Mg), aluminum (Al), etc. do not inhibit the black side I could't.
- Patent Document 3 discloses a surface treatment agent composed of ammonium molybdate, water-dispersed urethane resin, isopropylamine, ammonium zirconium carbonate, epoxy silane coupling agent, silica sol, but in this case, the thickness of the surface treatment coating film is increased It is difficult to apply where excessive weldability is required, and there is a problem in that sufficient corrosion resistance cannot be given when the thickness is reduced.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2002-332574
- Patent Document 2 Japanese Patent Publication No. 7-096699
- Patent Document 3 Japanese Unexamined Patent Publication No. 2005-146340
- One aspect of the present invention is to propose a surface treatment composition for galvanized steel sheet excellent in corrosion resistance, blackening resistance, hot water resistance, conductivity, etc., a surface treatment method using the same and a surface-treated galvanized steel sheet.
- the silane compound 3.0 to 25.0 parts by weight, molybdenum compound 0.5 to 5.0 parts by weight, vanadium compound 0.5 to 5.0 parts by weight, nickel compound 0.1 based on 100 parts by weight of the total solution It provides the surface treatment composition for galvanized steel sheets containing -3.0 weight part, a copper compound 0.05-1.0 weight part, and a remainder solvent.
- Another aspect of the present invention provides a method for surface treatment of a galvanized steel sheet, which comprises baking the surface treatment composition on a surface of a galvanized steel sheet, followed by baking at a temperature of 50 to 250 ° C.
- the holding plate, the zinc plated layer formed on the holding plate, and the coating layer formed on the zinc plated layer, the coating layer provides a galvanized steel sheet formed of the surface treatment composition.
- a galvanized steel sheet having corrosion resistance, blackening resistance, hot water resistance, and conductivity without fear of installation problems, increase in manufacturing cost, and environmental pollution. have.
- a surface treatment composition for a galvanized steel sheet a surface treatment method of a galvanized steel sheet, and a galvanized steel sheet of the present invention so as to be easily carried out by those skilled in the art.
- the present invention provides a surface treatment composition for a galvanized steel sheet containing magnesium (Mg) and aluminum (Al), which are used for metal materials, particularly home appliances, construction materials, automobiles, and the like, and a method and surface for treating a galvanized steel sheet using the same.
- the present invention relates to a treated galvanized steel sheet, and the surface-treated galvanized steel sheet aims to have excellent corrosion resistance, blackening resistance, hot water resistance, and conductivity.
- the present invention is 3.0 to 25.0 parts by weight of the silane compound, 0.5 to 5.0 parts by weight of molybdenum compound, 0.5 to 5.0 parts by weight of vanadium compound, 0.1 to 3.0 parts by weight of nickel compound, copper compound 0.05 to 1.0 based on 100 parts by weight of the total solution
- the balance solvent 3.0 to 25.0 parts by weight of the silane compound, 0.5 to 5.0 parts by weight of molybdenum compound, 0.5 to 5.0 parts by weight of vanadium compound, 0.1 to 3.0 parts by weight of nickel compound, copper compound 0.05 to 1.0 based on 100 parts by weight of the total solution.
- the surface treatment composition for galvanized steel sheet of the present invention may contain a silane compound.
- the silane compound may include a compound having an amino group and a compound having an epoxy group, and the mixing ratio of the compound having an amino group: the compound having the epoxy group may be 1: 1.5 to 3.0, but is not limited thereto.
- the flow white rust may occur due to insufficient corrosion resistance at a ratio of less than 1.5, and the white rust may occur when the ratio exceeds 3.0. have.
- silane compound examples include vinyl epoxy silane, vinyl methoxy silane, vinyl trimethoxy silane, 3-aminopropyl triepoxy silane, 3-glycidoxy propyl trimethoxy silane, 3-mercaltopropyl methoxy silane, ⁇ -Mercaltopropylmethoxysilane and (gamma) -mercaltopropylethoxysilane are mentioned.
- the silane compound is preferably added in an amount of 3 to 25 parts by weight, more preferably 5 to 20 parts by weight, based on 100 parts by weight of the total solution. If it is less than 3 parts by weight, the corrosion resistance is insufficient, and if it is more than 25 parts by weight, the hardness of the coating film increases, the workability is lowered, and the processing corrosion resistance is reduced due to cracking.
- the surface treatment composition for galvanized steel sheet of the present invention may contain a molybdenum compound.
- the molybdenum compound forms an oxyacid salt of molybdenum to inhibit oxygen film passage, and eventually, to inhibit zinc oxidation or oxygen deficiency amorphous zinc oxide to have black resistance.
- the molybdenum compound may be at least one of ammonium molybdate, sodium molybdate, calcium molybdate, molybdenum selenide, lithium molybdate, molybdenum disulfide, molybdenum trioxide, and molybdate.
- the molybdenum compound is preferably added in 0.5 to 5.0 parts by weight based on 100 parts by weight of the total solution. If it is less than 0.5 part by weight, there is little effect of generation of oxygenate, and if it is more than 5 parts by weight, corrosion resistance is low.
- the surface treatment composition for galvanized steel sheet of the present invention may contain a vanadium compound.
- the vanadium compound may form a passivation film on the surface of the plated steel sheet to improve the corrosion resistance of the plated steel sheet.
- the coating containing vanadium causes damage to the coating, for example, tetravalent vanadium of the adjacent coating is eluted and reduced to trivalent to form a passive film on the exposed plating surface. Can be.
- the vanadium compound is a vanadium compound having 2 to 5 oxidized numbers, such as vanadium pentoxide, vanadium trioxide, vanadium dioxide, vanadium oxyacetylacetonate, vanadium acetylacetonate, vanadium trichloride, and ammonium metavanadate. It is preferable that it is 1 or more types.
- the vanadium compound is preferably added in 0.5 to 5.0 parts by weight based on 100 parts by weight of the total solution. If it is less than 0.5 part by weight, there is a problem of insufficient corrosion resistance, and if it is more than 5 parts by weight, there is a problem in adhesion.
- the surface treatment composition for galvanized steel sheet of the present invention may contain a nickel compound.
- the nickel compound may be at least one of nickel acetate, nickel chloride, nickel fluoride, nickel nitrate, nickel sulfamic acid, nickel formate, nickel hydroxide, nickel ammonium sulfate, and nickel carbonate.
- the nickel compound is preferably added in 0.1 to 3.0 parts by weight based on 100 parts by weight of the total solution. If it is less than 0.1 part by weight, there is no surface conductivity improvement, and if it is more than 3 parts by weight, the coating film is cracked to reduce corrosion resistance.
- the surface treatment composition for galvanized steel sheet of the present invention may contain a copper compound.
- the copper compound is copper acetylacetonate, copper acetate, copper carbonate, copper chloride, cuprous oxide, copper pyrophosphate, copper nitrate, copper sulfate, cuprous iodide cuprous oxide, tetraamine copper sulfate, and copper disodium ethylenediamine tetraacetic acid One or more of them.
- the copper compound is preferably added in 0.05 ⁇ 1.0 parts by weight based on 100 parts by weight of the total solution. If it is less than 0.05, there is no effect on corrosion resistance after processing, and when it exceeds 1.0 weight part, black denaturation is low.
- the concentration of copper and nickel contained in the solution is Cu: 0.05 to 0.5% by weight, Ni: 0.5 to 3.0% by weight, and the weight ratio of Cu and Ni is preferably 0.1: 1.0 to 3.0. If the weight ratio thereof is less than 1.0, the effect of improving blackening resistance is insufficient, and if it exceeds 3.0, there is a fear of lowering the corrosion resistance.
- the balance consists of a solvent.
- the solvent may be a mixture of water and ethanol, but is not limited thereto.
- a Group 4A metal compound 0.5 to 10 parts by weight of phosphate compound, 1.0 to 10 parts by weight of carboxylic acid, and calcium compound based on 100 parts by weight of the total solution 0.1-3.0 weight part
- Organic acids 3-10 weight part may be further included.
- zirconium compound and the titanium compound may be used as the Group 4A metal compound, but is not limited thereto.
- a hafnium compound and a rutherfordium compound may also be used.
- the blackening phenomenon resulting from the concentration of magnesium oxide can be suppressed by making oxygen acid salts, such as zirconium and titanium which are 4A group metals, form.
- Oxygenates of Group 4A metals such as zirconium and titanium are a source of Group 4A metal oxygen acid ions that react with the magnesium ions eluted by the etching reaction.
- the reaction product forms a dense oxide film at the interface to improve corrosion resistance.
- zirconium compound zirconyl nitrate, zirconyl acetate, zirconium ammonium carbonate, zirconium acetylacetonate and the like are preferable.
- the titanium compound is preferably titanium ammonium carbonate, titanium lactate chelate, titanium acetonate, or the like.
- They are preferably added in an amount of 1 to 20 parts by weight based on 100 parts by weight of the total solution. If it is less than 1 part by weight, there is a problem of insufficient corrosion resistance, and if it exceeds 20 parts by weight, there may be a problem that cracks are easily generated due to excessive hardness of the film.
- the surface treatment composition for galvanized steel sheet of the present invention may contain a phosphate compound.
- the phosphate compound may be one kind or a mixture of two or more kinds selected from the group consisting of phosphoric acids, metal salts of phosphoric acids, and ammonium salts of phosphoric acids, and these contribute to improved corrosion resistance.
- the phosphoric acid may be orthophosphoric acid, pyrophosphoric acid, polyphosphoric acid, metaphosphoric acid, diphosphoric acid, triphosphate or tetraphosphoric acid, but are not limited thereto.
- the metal salt of the phosphates may include zinc phosphate, nickel phosphate, magnesium phosphate, and the like, but are not limited thereto.
- Examples of the ammonium salt of the phosphoric acid may be specifically ammonium monophosphate, diammonium phosphate or ammonium triphosphate, but is not limited thereto.
- the surface treatment composition for galvanized steel sheet of the present invention may include a carboxylic acid.
- the carboxylic acid may be one or more mixtures in an acid having a carboxyl functional group.
- Examples of the carboxylic acid may be one or a mixture of two or more selected from the group consisting of ascorbic acid, tartaric acid, citric acid, tannic acid, benzoic acid, glycolic acid and dihydroacetic acid, which are mainly due to the formation of chelate complexes. By making it good, adhesiveness is made favorable.
- the carboxylic acid When the carboxylic acid is included in less than 1.0 parts by weight, the adsorption of the components contained in the surface treatment composition to the surface of the steel sheet is insignificant, and in excess of 10 parts by weight of the acid is excessive, causing problems in the stability of the solution.
- the surface treatment composition for galvanized steel sheet of the present invention may contain a calcium compound.
- the calcium compound is calcium hydroxystearate, calcium carbonate, calcium acetate, calcium chloride, calcium fluoride, calcium hypophosphite, calcium hydroxide, calcium gluconate, calcium nitrate, calcium permanganate, calcium phosphate, calcium silicate, calcium sulfate, calcium stearate, and It may be one or more of calcium formate.
- the calcium compound is preferably added in 0.1 to 3.0 parts by weight based on 100 parts by weight of the total solution. If it is less than 0.1 part by weight, there is no effect on inhibiting black stool, and if it is more than 3.0 parts by weight, the workability is inferior, so that corrosion resistance after processing is reduced and conductivity is also reduced.
- the surface treatment composition for galvanized steel sheet of the present invention may contain an organic acid.
- the organic acid may be at least one of polyvinyl acetate, vinyl acetate, and polyvinyl chloride, but is not limited thereto.
- the organic acid is preferably added in 3 to 10 parts by weight based on 100 parts by weight of the total solution. If it is less than 3 parts by weight, there is no effect of improving the corrosion resistance after processing, and if it exceeds 10 parts by weight, the stability of the solution is low.
- a lubricant such as wax to lubricate the surface treatment composition for the galvanized steel sheet during surface processing, an antifoaming agent to prevent air bubbles during work, a leveling agent for surface leveling of the surface treatment film, a water-soluble resin, And at least one of insoluble resins in a state of being acidic in water.
- the galvanized steel sheet After coating the surface treatment composition as described above on the surface of the galvanized layer of galvanized steel sheet, the galvanized steel sheet is first prepared for surface treatment.
- the base metal of the galvanized steel sheet can be used without limitation, such as carbon steel, aluminum, aluminum alloy steel, stainless steel, copper.
- a zinc plated layer is formed on the base metal, and the zinc plated layer is contained in a weight%, Mg: 0.1% or more, Al: 0.1% or more, and a balance Zn.
- the galvanized layer may be made of a weight%, Mg: 0.1 ⁇ 10%, Al: 0.1 ⁇ 10%, the balance Zn.
- Mg and Al When 0.1% or more of Mg and Al are included, they may exhibit high corrosion resistance compared to the galvanized layer.
- the amount of Mg and Al is more than 10%, surface hardness is high, so brittle is difficult to process and corrosion resistance may be reduced.
- the galvanized layer may further include one or more selected from the group consisting of Si, Be, Ni, and Zr.
- the galvanized steel sheet is a zinc plated layer is formed on the base steel sheet, mainly hot-dip galvanized steel sheet is used, electro-galvanized steel sheet, dry (vacuum deposition, ion plating, etc.) galvanized steel sheet may also be used.
- the galvanized steel sheet thus prepared is a pretreatment step, and, if necessary, can be washed with an alkali or acidic degreasing agent to remove oil and stains attached to the steel sheet, or can be washed with hot water, solvent washing, or the like. After that, surface adjustment by acid, alkali or the like may be performed. In washing the surface of the raw material, washing with water after washing is preferable so that the detergent does not remain as long as possible on the surface of the raw material.
- the surface treatment composition of the present invention may be directly applied after cleaning the surface of the raw material metal, but may also be applied after the phosphate-based chemical conversion treatment.
- the surface treatment of the galvanized steel sheet is not particularly limited, but usually, a roll coater method of transferring the coating liquid to the surface of the material, or a method of squeezing the treatment agent in the roll after showering by showering, etc., immersing in the coating liquid, coating liquid Conventional methods, such as spraying, can be used.
- the coating temperature is preferably 0 to 60 ° C, and more preferably 5 to 40 ° C, since the main solvent is water.
- the plate is baked at a temperature of 50 to 250 ° C.
- the baking temperature is less than 50 ° C, the coating layer is not sufficiently dried, and the adhesion and corrosion resistance of the coating film are insufficient. If exceeded, cooling of the steel sheet after drying is not easy, and high temperature baking treatment may result in deterioration of the coating film components, thereby reducing the performance of quality.
- Dry film thickness of the steel sheet is surface treatment composition of the present invention is applied is applied to the preferably 0.2 ⁇ 1.0g / m 2 than 0.1 ⁇ 1.2g / m 2, it is preferable to dry for from 0.1 to 30 seconds. At this time, when the dry coating amount is 0.1g / m 2 or less, there is a problem that the corrosion resistance is insufficient, and when 1.2g / m 2 or more, there is a problem that the conductivity decreases.
- a galvanized layer was prepared by weight%, Mg: 3%, Al: 2.5%, balance Zn, and a hot dip galvanized steel sheet (plating amount single sided 60 g / m 2 ).
- the surface of the hot-dip galvanized steel sheet prepared above was diluted with 2% heavy alkali degreasing agent (CLN-364S: manufactured by Daehan Parkcharizing Co., Ltd.) and spray sprayed at a temperature of 60 ° C. for 20 seconds to clean the surface of the steel sheet. After removing foreign substances such as oil adhered to, washed with tap water to remove the alkali solution remaining on the surface of the steel sheet.
- CCLN-364S manufactured by Daehan Parkcharizing Co., Ltd.
- the surface treatment composition of the present invention a mixture of 10 parts by weight of water (pure water) and 3 parts by weight of ethanol, based on 100 parts by weight of the total solution, was mixed at the indicated concentrations with chemicals as shown in Table 2 and stirred for 30 minutes or more. This allows the mixed chemicals to mix or dissolve sufficiently. The rest was adjusted with water so that the total solution was 100 parts by weight.
- the chemicals used are ammonium zirconium carbonate as the Group 4A metal compound, ammonium phosphate as the phosphate compound, ascorbic acid as the carboxylic acid compound, and 3-glydoxypropyltrimethoxysilane as the silane compound.
- compositions prepared under the conditions of Table 2 were applied to a hot dip galvanized steel sheet with a bar coater (Bar Coater) and then baked at a temperature of 150 ° C. to have a coating layer having a thickness of 300 to 600 mg / m 2 .
- corrosion resistance For the galvanized steel sheet after the pretreatment, corrosion resistance, blackening resistance, hot water resistance, and conductivity were measured by the following method.
- blackness was measured according to the degree of discoloration by measuring the difference in brightness and chroma with a whiteness instrument X-Rite 8200.
- the color fading calculated by the above formula is represented by ⁇ , 5 or more represented by X.
- the color fading calculated by the above formula is represented by ⁇ , 5 or more represented by X.
- the surface resistance was 0.5 m ⁇ or less, 0.5 between 0.5 m ⁇ and 1.0 m, and X was 1.0 m ⁇ or more.
- 3-aminopronopropyltriethoxysilane hydrolyzed 2 1 by weight 7 parts by weight, 3 parts by weight of vanadil acetate, 1.5 parts by weight of ammonium molybdate, 0.5 parts by weight of nickel nitrate, 1.0 parts by weight of calcium nitrate, nitric acid 0.5 parts by weight of copper and 5 parts by weight of vinyl acetate were mixed and stirred for at least 30 minutes to allow the mixed chemicals to mix or dissolve sufficiently. The remainder was adjusted with water so that the total solution was 100 parts by weight to prepare a surface treatment composition.
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Abstract
Description
구분 | 평판부 | 에릭슨가공부 |
판정기준 | 백녹발생면적 5% 이내 | 백녹발생면적 5% 이내 |
○ | 120시간 이상 기준 이내 | 72시간 이상 기준 이내 |
△ | 72~120시간 기준 이내 | 48~72시간 기준 이내 |
X | 72시간 미만 기준 이내 | 48시간 미만 기준 이내 |
No | 건조도막 두께 (mg/m2) | 품질 | 비고 | ||||
내식성 | 내흑변성 | 내온수성 | 전도성 | ||||
평판부 | 가공후 | ||||||
1 | 0.09 | X | X | X | X | ○ | 비교예 |
2 | 0.1 | ○ | ○ | ○ | ○ | ○ | 발명예 |
3 | 1.2 | ○ | ○ | ○ | ○ | ○ | |
4 | 1.3 | ○ | X | ○ | ○ | X | 비교예 |
Claims (19)
- 전체 용액 100중량부를 기준으로 실란화합물 3.0~25.0중량부, 몰리브덴화합물 0.5~5.0중량부, 바나듐화합물 0.5~5.0중량부, 니켈화합물 0.1~3.0중량부, 구리화합물 0.05~1.0중량부, 잔부 용매를 포함하는, 아연도금강판용 표면처리 조성물.
- 제 1항에 있어서,상기 표면처리 조성물은 전체 용액 100중량부를 기준으로 4A족 금속화합물 1~20중량부, 인산화합물 0.5~10중량부, 카르복실산 1.0~10중량부, 칼슘화합물 0.1~3.0중량부 유기산 3~10중량부의 1종 이상을 추가로 포함하는 것인, 아연도금강판용 표면처리 조성물.
- 제 1항에 있어서,상기 용매는 물 및 에탄올의 혼합물인 것인, 아연도금강판용 표면처리 조성물.
- 제 1항에 있어서,상기 용액 내의 구리와 니켈은 각각 Cu: 0.05~0.5중량%, Ni: 0.5~3.0중량%이고, 상기 Cu와 Ni의 중량비가 0.1:1.0~3.0인 것인, 아연도금강판용 표면처리 조성물.
- 제 2항에 있어서,상기 4A족 금속화합물은 금속 표면에서 산소산염을 형성할 수 있는 지르코늄화합물 및 티타늄화합물 중 1종 이상인 것인, 아연도금강판용 표면처리 조성물.
- 제 2항에 있어서,상기 인산화합물은 오르토인산, 피로인산, 폴리인산, 메타인산, 2인산, 3인산, 4인산, 이들의 금속염, 및 이들의 암모늄염으로 이루어지는 군으로부터 선택되는 1종 또는 2종 이상의 혼합물인 것인, 아연도금강판용 표면처리 조성물.
- 제 2항에 있어서,상기 카르복실산은 아스코로빈산, 주석산, 구연산, 탄닌산, 안식향산, 클리콜산, 및 디하이드로초산으로 이루어지는 군으로부터 선택되는 1종 또는 2종 이상의 혼합물인 것인, 아연도금강판용 표면처리 조성물.
- 제 1항에 있어서,상기 실란화합물은 아미노기를 가진 화합물과 에폭시기를 가진 화합물을 포함하며, 상기 아미노기를 가진 화합물 : 상기 에폭시기를 가진 화합물의 혼합비율이 1: 1.5~3.0인 것인, 아연도금강판용 표면처리 조성물.
- 제 1항에 있어서,상기 몰리브덴화합물은 몰리브덴산암모늄, 몰리브덴산나트륨, 칼슘몰리브덴산, 몰리브덴셀렌화물, 리튬몰리브데이트, 이황화몰리브덴, 삼산화몰리브덴, 및 몰리브덴산 중 1종 이상인 것인, 아연도금강판용 표면처리 조성물.
- 제 1항에 있어서,상기 바나듐화합물은 5산화 바나듐, 3산화 바나듐, 2산화 바나듐, 바나듐옥시아세틸아세토네이트, 바나듐아세틸아세토네이트, 3염화바나듐, 및 메타바나딘산암모늄 중 1종 이상인 것인, 아연도금강판용 표면처리 조성물.
- 제 1항에 있어서,상기 니켈화합물은 니켈아세트산, 염화니켈, 불화니켈, 질산니켈, 설파믹산니켈, 개미산니켈, 수산화니켈, 황산니켈암모늄, 및 탄산니켈 중 1종 이상인 것인, 아연도금강판용 표면처리 조성물.
- 제 2항에 있어서,상기 칼슘화합물은 칼슘하이드록시스테아르산염, 탄산칼슘, 아세트산칼슘, 염화칼슘, 불화칼슘, 차아인산칼슘, 수산화칼슘, 글루코산칼슘, 질산칼슘, 과망간산칼슘, 인산칼슘, 칼슘실리케이트, 황산칼슘, 스테아린산칼슘, 및 개미산칼슘 중 1종 이상인 것인, 아연도금강판용 표면처리 조성물.
- 제 1항에 있어서,상기 구리화합물은 구리아세틸아세토네이트, 아세트산구리, 탄산동, 염화구리, 산화제일구리, 피로인산구리, 질산구리, 황산구리, 요오드화구리 산화제일구리, 테트라아민구리황산염, 및 구리디나트륨에틸렌디아민테트라아세트산 중 1종 이상인 것인, 아연도금강판용 표면처리 조성물.
- 제 2항에 있어서,상기 유기산은 폴리초산비닐, 초산비닐, 및 폴리비닐크로라이드 중 1종 이상인 것인, 아연도금강판용 표면처리 조성물.
- 제 1항에 있어서,상기 표면처리 조성물은 왁스, 레벨링제, 소포제, 수용성 수지, 및 물에 기분산된 상태의 불용성 수지 중 1종 이상을 추가로 포함하는, 아연도금강판용 표면처리 조성물.
- 소지강판;상기 소지강판 상에 형성된 아연도금층; 및상기 아연도금층 상에 형성된 코팅층을 포함하며,상기 코팅층은 청구항 1 내지 청구항 12 중 어느 한 항의 표면처리 조성물로 형성된 아연도금강판.
- 제 16항에 있어서,상기 코팅층의 건조도막 두께가 0.1~1.2g/m2인 아연도금강판.
- 제 16항에 있어서,상기 아연도금층은 중량%로, Mg 0.1% 이상, Al 0.1% 이상, 잔부 Zn로 이루어지는 것인, 아연도금강판.
- 제 18항에 있어서,상기 아연도금층은 Si, Be, Ni, 및 Zr로 이루어지는 그룹에서 선택되는 1종 이상을 추가 포함하는 것인, 아연도금강판.
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ES12890773.0T ES2632424T3 (es) | 2012-12-26 | 2012-12-28 | Composición de tratamiento de superficie para lámina de acero galvanizado, método de tratamiento de superficie para lámina de acero galvanizado, y lámina de acero galvanizado |
JP2015551039A JP6026016B2 (ja) | 2012-12-26 | 2012-12-28 | 亜鉛めっき鋼板用表面処理組成物、亜鉛めっき鋼板の表面処理方法及び亜鉛めっき鋼板 |
US14/758,225 US9856380B2 (en) | 2012-12-26 | 2012-12-28 | Surface treatment composition for galvanized steel sheet, surface treatment method for galvanized steel sheet, and galvanised steel sheet |
CN201280078051.5A CN104884671B (zh) | 2012-12-26 | 2012-12-28 | 镀锌钢板用表面处理组合物、镀锌钢板的表面处理方法及镀锌钢板 |
EP12890773.0A EP2940186B1 (en) | 2012-12-26 | 2012-12-28 | Surface treatment composition for galvanized steel sheet, surface treatment method for galvanized steel sheet, and galvanised steel sheet |
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KR1020120153978A KR101439693B1 (ko) | 2012-12-26 | 2012-12-26 | 아연도금강판용 표면처리 조성물, 아연도금강판의 표면처리 방법 및 아연도금강판 |
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US9856380B2 (en) | 2018-01-02 |
CN104884671B (zh) | 2017-08-01 |
US20150344702A1 (en) | 2015-12-03 |
JP2016501989A (ja) | 2016-01-21 |
EP2940186B1 (en) | 2017-04-05 |
WO2014104428A8 (ko) | 2014-12-11 |
JP6026016B2 (ja) | 2016-11-16 |
ES2632424T3 (es) | 2017-09-13 |
KR20140083833A (ko) | 2014-07-04 |
EP2940186A4 (en) | 2016-01-27 |
CN104884671A (zh) | 2015-09-02 |
KR101439693B1 (ko) | 2014-09-24 |
EP2940186A1 (en) | 2015-11-04 |
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