EP1029111B1 - Korrosionsschutz von verzinkten und legierungsverzinkten stahlbändern - Google Patents
Korrosionsschutz von verzinkten und legierungsverzinkten stahlbändern Download PDFInfo
- Publication number
- EP1029111B1 EP1029111B1 EP98959815A EP98959815A EP1029111B1 EP 1029111 B1 EP1029111 B1 EP 1029111B1 EP 98959815 A EP98959815 A EP 98959815A EP 98959815 A EP98959815 A EP 98959815A EP 1029111 B1 EP1029111 B1 EP 1029111B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ions
- treatment solution
- steel strips
- zinc
- alloy
- 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.)
- Expired - Lifetime
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 19
- 230000007797 corrosion Effects 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 title abstract description 5
- 239000010959 steel Substances 0.000 title abstract description 5
- 229910045601 alloy Inorganic materials 0.000 title description 4
- 239000000956 alloy Substances 0.000 title description 4
- 238000000034 method Methods 0.000 claims abstract description 23
- -1 manganese(II) ions Chemical class 0.000 claims abstract description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- 239000010936 titanium Substances 0.000 claims abstract description 7
- 150000001735 carboxylic acids Chemical class 0.000 claims abstract description 6
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 150000001298 alcohols Chemical class 0.000 claims abstract description 4
- 229920001577 copolymer Polymers 0.000 claims abstract description 4
- 150000002148 esters Chemical class 0.000 claims abstract description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims abstract description 4
- 239000011976 maleic acid Substances 0.000 claims abstract description 4
- 229920000642 polymer Polymers 0.000 claims abstract description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims abstract description 4
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 claims abstract description 3
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910001453 nickel ion Inorganic materials 0.000 claims abstract description 3
- 150000003377 silicon compounds Chemical class 0.000 claims abstract description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 9
- 239000008397 galvanized steel Substances 0.000 claims description 9
- 150000002500 ions Chemical class 0.000 claims description 5
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 claims description 3
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 16
- 239000002184 metal Substances 0.000 abstract description 16
- 239000011701 zinc Substances 0.000 abstract description 9
- 229910052725 zinc Inorganic materials 0.000 abstract description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 7
- 229910001297 Zn alloy Inorganic materials 0.000 abstract description 4
- 125000004432 carbon atom Chemical group C* 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229910019142 PO4 Inorganic materials 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 235000021317 phosphate Nutrition 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 239000010452 phosphate Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical class [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical compound [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—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
- C23C22/18—Orthophosphates containing manganese cations
-
- 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
- C23C22/18—Orthophosphates containing manganese cations
- C23C22/182—Orthophosphates containing manganese cations containing also zinc cations
-
- 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
- C23C22/36—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 containing also phosphates
- C23C22/364—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 containing also phosphates containing also manganese cations
Definitions
- the invention relates to a new method for corrosion protection of galvanized and galvanized steel strips.
- the method causes one Temporary corrosion protection for transport and storage purposes.
- Temporary corrosion protection should be understood to mean that the metal surfaces are effectively protected against corrosion for transport and storage times, until they are covered with a permanent anti-corrosion layer such as a Paint to be coated.
- the method according to the invention serves as Pretreatment of the metal surfaces before painting, immediately after the application of the method according to the invention to the metal surfaces can be done.
- galvanized or alloy-galvanized steel strips are either simply oiled or phosphated or chromated if higher corrosion loads are expected.
- these measures are not sufficient in the case of particularly high corrosive loads such as ship transport in a salty sea atmosphere or storage in a tropical environment.
- the best temporary corrosion protection measure known in the prior art is chromating, in which the metal surfaces are coated with a layer containing chromium (III) and / or chromium (VI) with a layer coating of generally about 5 to about 15 mg / m 2 Chrome plated. Because of the known toxicological problems of chromium compounds, this process is disadvantageous and complex from the aspects of occupational safety, ecology and the necessary disposal.
- chromated sheets are not very suitable for subsequent phosphating because on the one hand they lead to a chromium load on the cleaning solutions and on the other hand the metal surfaces cannot generally be phosphated over the entire area.
- Phosphating as an alternative measure to temporary corrosion protection can undesirably change the appearance of the metal surfaces.
- phosphating is complex in terms of plant technology, since depending on the substrate material it requires an additional activation step and, as a rule, a passivation step after the phosphating step. Passivation is often carried out using chromium-containing treatment solutions, which also results in the disadvantages mentioned above of using chromium-containing treatment solutions.
- the invention has for its object a method for protecting against corrosion to provide galvanized and alloy galvanized steel strips that is less ecologically problematic and technically easier to implement than the aforementioned corrosion protection measures.
- This new process is supposed to the conventional methods with regard to paintability or paint adhesion be at least equivalent, but corrosion protection for storage purposes improve.
- US-A-4,264,378 describes a chromium-free phosphating process, the Metal surface with an acidic, aqueous phosphate-containing solution that a pH of 1.5 to 3.0 is treated.
- This solution contains a divalent or higher cation as well as molybdate, tungstate, niobate or Tantalate ions.
- divalent or higher cations for example Ca, Mg, Ba, Al, Zn, Cd, Fe, Ni, Co and / or Mn in question.
- the Solution can also be finely divided silicon or film-forming organic polymers, as they are common in paint manufacturing, for example polyacrylates.
- the treatment solution is on the metal surface without rinsing dried up.
- the present invention relates to a method for the corrosion protection of galvanized or alloy-galvanized steel strips, characterized in that the galvanized or alloy-galvanized steel strips are brought into contact with an aqueous treatment solution with a pH in the range from 1.5 to 3.5, which releases is of soluble molybdate, tungstate, vanadate, niobate and / or tantalate ions and the 1 to 20 g / l manganese (II) ions, 1 to 150 g / l phosphate ions and up to 150 g / l of one or more polymers or copolymers of polymerizable carboxylic acids selected from acrylic acid, methacrylic acid, maleic acid and their esters with alcohols having 1 to 6 carbon atoms contains, and the solution dries without intermediate rinsing.
- an aqueous treatment solution with a pH in the range from 1.5 to 3.5, which releases is of soluble molybdate, tungstate, vanadate, n
- the Steel strips can also be alloy galvanized, i. that is, an electrolytic or in Apply hot-dip zinc alloy layer.
- the most important alloy components for zinc are iron, nickel and / or Aluminum.
- the thickness of the zinc layer or the zinc alloy layer lies here usually in the range between about 2 and about 20 microns, in particular between about 5 and about 10 microns.
- the applied treatment solution is dried without intermediate rinsing. Methods of this type are known in the art under no-rinse methods or dry-in-place methods.
- the treatment solutions can be sprayed onto the metal surfaces or applied by passing the steel strips through the treatment bath.
- the desired amount of the treatment solution remaining on the metal surface which leads to the desired layer coverage of 1 to 5 g / m 2 , can be adjusted by squeezing rollers.
- the treatment solution for the process according to the invention contains 1 to 150 g / l, preferably 10 to 70 g / l phosphate ions.
- the phosphate content is here as Phosphate ions calculated.
- the pH to be set according to the invention in the range from 1.5 to 3.5 is only a very high low proportion of the phosphate is present as triple negatively charged phosphate ions. Rather, there is a balance of free phosphoric acid, primary and secondary phosphate ions, which is determined by the acid constants of phosphoric acid for the different protolysis levels and depends on the specifically chosen pH value. Most of the phosphate is in the free pH range Phosphoric acid and as primary and secondary phosphate ions.
- the treatment solution also contains up to 150 g / l, preferably between 60 and 125 g / l of one or more polymers or copolymers polymerizable Carboxylic acids selected from acrylic acid, methacrylic acid and maleic acid and their esters with alcohols with 1 to 6 carbon atoms. If here Generally speaking of “treatment solution”, it means that the organic polymers, depending on the type, also as a suspension in the active ingredient solution can be present. The same applies here, depending on the acid constants used Carboxylic acids at the pH value of the treatment solution as a mixture of free acids and acid anions. Especially it is preferred to use one or more polymeric carboxylic acids together at least one of the optional components zinc, nickel, Use titanium, silicon and fluoride.
- Manganese and, if desired, zinc and nickel can be more water soluble in the form Salts, for example as nitrates, are introduced into the treatment solution.
- Manganese, zinc and nickel are therefore preferably used in the form of the oxides or carbonates, so that they are ultimately present in the treatment solution as phosphates. It is also preferred to use titanium, silicon and fluoride in the form of hexafluoro acid. At most, the silicon can be introduced in the form of finely dispersed silicas, which preferably have a specific surface area in the range from 150 to 250 m 2 / g.
- the temperature of the treatment solution on contact with the metal surface should preferably in the range from about 20 to about 40 ° C. Lower temperatures slow down the reaction rate and lead to an increasing weaker corrosion protection, higher temperatures shorten the Exposure time due to drying too quickly and are therefore also disadvantageous.
- the treatment solution is through Dried up temperature increase. This can be done by Metal surfaces are treated with infrared radiation. However, it is easier to use the Treatment solution to drive wetted metal strips through a drying oven. This should have such a temperature that the object temperature, that is Temperature of the metal surface, ranging from about 60 to about 120 ° C established. In Anglo-Saxon usage, this object temperature is also called "Peak Metal Temperature" called.
- the invention was tested on test sheets made of hot-dip galvanized steel. Since these were covered with an anti-corrosion oil, they were first cleaned with a commercially available alkaline cleaner. In the practical application of the method in belt systems, however, the cleaning step can be omitted if the method according to the invention immediately follows the process of galvanizing or alloy galvanizing.
- sample sheets pretreated according to the invention and untreated or chrome-plated comparison sheets were subjected to a constant alternating climate test according to DIN 50017 and a salt spray test according to DIN 50021 SS. The number of days until the sample sheets reached a visually estimated level of rust 5 was recorded. The results are shown in Tables 2 and 3.
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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)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Coating With Molten Metal (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Laminated Bodies (AREA)
- Prevention Of Electric Corrosion (AREA)
Description
| 1 bis 20 | g/l Mangan(II)-lonen, |
| 1 bis 150 | g/l Phosphationen und |
enthält, und die Lösung ohne Zwischenspülung eintrocknet.
| Badzusammensetzungen (g/l in vollentsalztem Wasser) | |||
| Komponente | Beisp.1 | Beisp.2 | Beisp.3 |
| Mn | 3,2 | 5,4 | 9 |
| Phosphat | 6 | 10 | 91 |
| Zn | - | - | 3 |
| Ni | - | - | 3 |
| Ti (als H2Ti F6) | 5 | 8 | - |
| Si (als SiO2-Dispersion) | - | - | - |
| Acrylsäure-Polymer | 125 | 75 | 75 |
| Konstant-Wechselklimatest nach DIN 50017: Tage bis Rostgrad 5 | ||||
| behandelt mit Lösung aus | ||||
| unbehandelt | chromatiert | Beisp.1 | Beisp.2 | Beisp.3 |
| 1 | 7 | >142 | >142 | >142 |
| Salzsprühtest nach DIN 50021 SS: Tage bis Rostgrad 5 | ||||
| behandelt mit Lösung aus | ||||
| unbehandelt | chromatiert | Beisp.1 | Beisp.2 | Beisp.3 |
| <0,5 | 6 | 7 | 7 | 10 |
Claims (4)
- Verfahren zum Korrosionsschutz von verzinkten oder legierungsverzinkten Stahlbändern, dadurch gekennzeichnet, daß man die verzinkten oder legierungsverzinkten Stahlbänder mit einer wäßrigen Behandlungslösung mit einem pH-Wert im Bereich von 1,5 bis 3,5 in Kontakt bringt, die frei ist von löslichen Molybdat-, Wolframat-, Vanadat-, Niobat- und/oder Tantalat-Ionen und dieenthält, und die Lösung ohne Zwischenspülung eintrocknet.1 bis 20 g/l Mangan(II)-Ionen,1 bis 150 g/l Phosphationen undbis zu 150 g/l eines oder mehrere Polymere oder Copolymere polymerisierbarer Carbonsäuren ausgewählt aus Acrylsäure, Methacrylsäure, Maleinsäure und deren Estern mit Alkoholen mit 1 bis 6 C-Atomen
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Behandlungslösung zusätzlich eine oder mehrere der folgenden Komponenten enthält:bis zu 10 g/l Zinkionen,bis zu 10 g/l Nickelionen,bis zu 20 g/l Titanionen,bis zu 50 g/l Silizium in Form von Siliziumverbindungen,bis zu 30 g/l Fluoridionen.
- Verfahren nach einem oder beiden der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die Behandlungslösung eine Temperatur im Bereich von 20 bis 40 °C aufweist.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß man die Behandlungslösung nach einer Einwirkdauer von 1 bis 6 Sekunden bei einer Objekttemperatur von 60 bis 120 °C eintrocknet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19749508 | 1997-11-08 | ||
| DE19749508A DE19749508A1 (de) | 1997-11-08 | 1997-11-08 | Korrosionsschutz von verzinkten und legierungsverzinkten Stahlbändern |
| PCT/EP1998/006889 WO1999024638A1 (de) | 1997-11-08 | 1998-10-30 | Korrosionsschutz von verzinkten und legierungsverzinkten stahlbändern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1029111A1 EP1029111A1 (de) | 2000-08-23 |
| EP1029111B1 true EP1029111B1 (de) | 2002-07-24 |
Family
ID=7848097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98959815A Expired - Lifetime EP1029111B1 (de) | 1997-11-08 | 1998-10-30 | Korrosionsschutz von verzinkten und legierungsverzinkten stahlbändern |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6537387B1 (de) |
| EP (1) | EP1029111B1 (de) |
| JP (1) | JP2001522941A (de) |
| AT (1) | ATE221144T1 (de) |
| AU (1) | AU735849B2 (de) |
| BR (1) | BR9813180A (de) |
| CA (1) | CA2309581C (de) |
| DE (2) | DE19749508A1 (de) |
| ES (1) | ES2180217T3 (de) |
| HU (1) | HUP0100106A3 (de) |
| WO (1) | WO1999024638A1 (de) |
| ZA (1) | ZA9810120B (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6743302B2 (en) | 2000-01-28 | 2004-06-01 | Henkel Corporation | Dry-in-place zinc phosphating compositions including adhesion-promoting polymers |
| DE10010355A1 (de) * | 2000-03-07 | 2001-09-13 | Chemetall Gmbh | Verfahren zum Aufbringen eines Phosphatüberzuges und Verwendung der derart phosphatierten Metallteile |
| DE10022352A1 (de) * | 2000-05-08 | 2001-11-22 | Georg Gros | Verfahren zur Beschichtung von elektrolytisch- oder feuerverzinkten Blechen |
| WO2002024344A2 (de) * | 2000-09-25 | 2002-03-28 | Chemetall Gmbh | Verfahren zur vorbehandlung und beschichtung von metallischen oberflächen vor der umformung mit einem lackähnlichen überzug und verwendung der derart beschichteten substrate |
| MY117334A (en) * | 2000-11-10 | 2004-06-30 | Nisshin Steel Co Ltd | Chemically processed steel sheet improved in corrosion resistance |
| DE10110833B4 (de) * | 2001-03-06 | 2005-03-24 | Chemetall Gmbh | Verfahren zum Aufbringen eines Phosphatüberzuges und Verwendung der derart phosphatierten Metallteile |
| AU2003290716A1 (en) * | 2002-11-15 | 2004-06-15 | Henkel Kommanditgesellschaft Auf Aktien | Passivation composition and process for zinciferous and aluminiferous surfaces |
| DE102005027567A1 (de) * | 2005-06-14 | 2006-12-21 | Basf Ag | Verfahren zum Passivieren von metallischen Oberflächen mit Säuregruppen aufweisenden Polymeren |
| JP4970773B2 (ja) * | 2005-11-18 | 2012-07-11 | 日本パーカライジング株式会社 | 金属表面処理剤、金属材の表面処理方法及び表面処理金属材 |
| JP5241075B2 (ja) * | 2006-03-06 | 2013-07-17 | 日本パーカライジング株式会社 | 金属材料表面処理用のノンクロメート水系表面処理剤 |
| JP5220742B2 (ja) * | 2006-07-31 | 2013-06-26 | ユニバーシティ オブ フロリダ リサーチ ファンデーション インコーポレーティッド | 超小型飛行機の無翼ホバリング |
| DE102007061109B4 (de) * | 2007-12-19 | 2013-01-17 | Henkel Ag & Co. Kgaa | Behandlungslösung zum Beschichten eines Stahlbandes, ein Verfahren zum Aufbringen derselben sowie ein Stahlband mit einer Beschichtung erhalten aus der Behandlungslösung zur Verbesserung des Umformverhaltens |
| CN106222639B (zh) * | 2016-08-17 | 2018-07-13 | 安徽红桥金属制造有限公司 | 一种弹簧钢铸件表面防锈预处理溶液 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2905535A1 (de) | 1979-02-14 | 1980-09-04 | Metallgesellschaft Ag | Verfahren zur oberflaechenbehandlung von metallen |
| US5427632A (en) * | 1993-07-30 | 1995-06-27 | Henkel Corporation | Composition and process for treating metals |
| US5378292A (en) * | 1993-12-15 | 1995-01-03 | Henkel Corporation | Phosphate conversion coating and compositions and concentrates therefor with stable internal accelerator |
| DE4433946A1 (de) | 1994-09-23 | 1996-03-28 | Henkel Kgaa | Phosphatierverfahren ohne Nachspülung |
| DE4443882A1 (de) * | 1994-12-09 | 1996-06-13 | Metallgesellschaft Ag | Verfahren zum Aufbringen von Phosphatüberzügen auf Metalloberflächen |
-
1997
- 1997-11-08 DE DE19749508A patent/DE19749508A1/de not_active Withdrawn
-
1998
- 1998-10-30 ES ES98959815T patent/ES2180217T3/es not_active Expired - Lifetime
- 1998-10-30 US US09/554,038 patent/US6537387B1/en not_active Expired - Fee Related
- 1998-10-30 CA CA002309581A patent/CA2309581C/en not_active Expired - Fee Related
- 1998-10-30 DE DE59804925T patent/DE59804925D1/de not_active Expired - Lifetime
- 1998-10-30 EP EP98959815A patent/EP1029111B1/de not_active Expired - Lifetime
- 1998-10-30 WO PCT/EP1998/006889 patent/WO1999024638A1/de not_active Ceased
- 1998-10-30 BR BR9813180-0A patent/BR9813180A/pt not_active Application Discontinuation
- 1998-10-30 HU HU0100106A patent/HUP0100106A3/hu unknown
- 1998-10-30 AU AU15583/99A patent/AU735849B2/en not_active Ceased
- 1998-10-30 AT AT98959815T patent/ATE221144T1/de not_active IP Right Cessation
- 1998-10-30 JP JP2000519627A patent/JP2001522941A/ja active Pending
- 1998-11-05 ZA ZA9810120A patent/ZA9810120B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA2309581C (en) | 2007-04-10 |
| HUP0100106A2 (hu) | 2001-05-28 |
| ES2180217T3 (es) | 2003-02-01 |
| US6537387B1 (en) | 2003-03-25 |
| WO1999024638A1 (de) | 1999-05-20 |
| JP2001522941A (ja) | 2001-11-20 |
| CA2309581A1 (en) | 1999-05-20 |
| BR9813180A (pt) | 2000-08-22 |
| ZA9810120B (en) | 1999-05-10 |
| ATE221144T1 (de) | 2002-08-15 |
| HUP0100106A3 (en) | 2004-06-28 |
| EP1029111A1 (de) | 2000-08-23 |
| DE19749508A1 (de) | 1999-05-12 |
| AU1558399A (en) | 1999-05-31 |
| AU735849B2 (en) | 2001-07-19 |
| DE59804925D1 (de) | 2002-08-29 |
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