CN106637028A - Environment-friendly sealing treatment agent for hot-dip galvanizing - Google Patents
Environment-friendly sealing treatment agent for hot-dip galvanizing Download PDFInfo
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- CN106637028A CN106637028A CN201611231030.9A CN201611231030A CN106637028A CN 106637028 A CN106637028 A CN 106637028A CN 201611231030 A CN201611231030 A CN 201611231030A CN 106637028 A CN106637028 A CN 106637028A
- Authority
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- China
- Prior art keywords
- treatment agent
- environment
- hot
- shellac
- sealing treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005246 galvanizing Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 title abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims abstract description 12
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000002949 phytic acid Nutrition 0.000 claims abstract description 12
- 239000000467 phytic acid Substances 0.000 claims abstract description 12
- 229940068041 phytic acid Drugs 0.000 claims abstract description 12
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 11
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 10
- 239000012153 distilled water Substances 0.000 claims abstract description 9
- 229920001800 Shellac Polymers 0.000 claims description 24
- 238000007598 dipping method Methods 0.000 claims description 24
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 claims description 24
- 239000004208 shellac Substances 0.000 claims description 24
- 229940113147 shellac Drugs 0.000 claims description 24
- 235000013874 shellac Nutrition 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 230000001476 alcoholic effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract description 10
- 239000011651 chromium Substances 0.000 abstract description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052804 chromium Inorganic materials 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 235000019795 sodium metasilicate Nutrition 0.000 abstract description 4
- 150000001845 chromium compounds Chemical class 0.000 abstract description 2
- RHAXKFFKGZJUOE-UHFFFAOYSA-N 7-acetyl-6-ethyl-3,5,8-trihydroxy-9,10-dioxoanthracene-1,2-dicarboxylic acid Chemical compound O=C1C2=CC(O)=C(C(O)=O)C(C(O)=O)=C2C(=O)C2=C1C(O)=C(CC)C(C(C)=O)=C2O RHAXKFFKGZJUOE-UHFFFAOYSA-N 0.000 abstract 1
- 235000011007 phosphoric acid Nutrition 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000011701 zinc Substances 0.000 description 21
- 238000007747 plating Methods 0.000 description 17
- 229910019142 PO4 Inorganic materials 0.000 description 14
- 238000002161 passivation Methods 0.000 description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 13
- 229910052725 zinc Inorganic materials 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 239000000470 constituent Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 150000003585 thioureas Chemical class 0.000 description 4
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 3
- 239000001263 FEMA 3042 Substances 0.000 description 3
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 3
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- LRBQNJMCXXYXIU-QWKBTXIPSA-N gallotannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@H]2[C@@H]([C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-QWKBTXIPSA-N 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 229920002258 tannic acid Polymers 0.000 description 3
- 229940033123 tannic acid Drugs 0.000 description 3
- 235000015523 tannic acid Nutrition 0.000 description 3
- VPTUPAVOBUEXMZ-UHFFFAOYSA-N (1-hydroxy-2-phosphonoethyl)phosphonic acid Chemical compound OP(=O)(O)C(O)CP(O)(O)=O VPTUPAVOBUEXMZ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 229910020489 SiO3 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- -1 hydroxyl ethidine Chemical compound 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- FSJSYDFBTIVUFD-SUKNRPLKSA-N (z)-4-hydroxypent-3-en-2-one;oxovanadium Chemical compound [V]=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O FSJSYDFBTIVUFD-SUKNRPLKSA-N 0.000 description 1
- YFSUTJLHUFNCNZ-UHFFFAOYSA-M 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-M 0.000 description 1
- JJJOZVFVARQUJV-UHFFFAOYSA-N 2-ethylhexylphosphonic acid Chemical compound CCCCC(CC)CP(O)(O)=O JJJOZVFVARQUJV-UHFFFAOYSA-N 0.000 description 1
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical compound CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- ZTFZSHLWORMEHO-UHFFFAOYSA-A pentaaluminum;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O ZTFZSHLWORMEHO-UHFFFAOYSA-A 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- AMWVZPDSWLOFKA-UHFFFAOYSA-N phosphanylidynemolybdenum Chemical compound [Mo]#P AMWVZPDSWLOFKA-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- CMZUMMUJMWNLFH-UHFFFAOYSA-N sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 description 1
- 239000011684 sodium molybdate Substances 0.000 description 1
- 235000015393 sodium molybdate Nutrition 0.000 description 1
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 229960001367 tartaric acid Drugs 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910000349 titanium oxysulfate Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910000166 zirconium phosphate Inorganic materials 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
- 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
-
- 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
- C23C22/12—Orthophosphates containing zinc cations
- C23C22/17—Orthophosphates containing zinc cations containing also organic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses an environment-friendly sealing treatment agent for hot-dip galvanizing and belongs to the technical fields of hot-dip galvanizing and after-treatment. The sealing treatment agent is prepared from 20-30ml/L of HNO3, 30-50g/L of Na2SiO3, 5-10ml/L of H3PO4, 25-40ml/L of H2O2, 3-5ml/L of phytic acid, 10-20g/L of Zn(H2PO4)2, 0.5-3ml/L of a shell lac solution and distilled water. The sealing treatment agent for hot-dip galvanizing does not comprise a chromium compound, a protecting film on the surface of a treated galvanized layer does not contain chromium either, and remarkable environment-friendly features are presented in preparing, using and discarding treatment processes. After the hot-dip galvanized layer is treated by the sealing treatment agent, the protective film is which uniform in appearance color and complete in covering can be obtained on the surface of the galvanized layer, and the corrosion resistance of the galvanized layer can be obviously improved.
Description
Technical field
The present invention relates to a kind of Seal treatment agent of galvanizing by dipping, belongs to galvanizing by dipping and zinc-plated post-processing technology field,
Passivation or Seal treatment for steel piece surface heat zinc immersion layer.
Background technology
Hot-dip galvanizing technique is a kind of big widely used long-effective corrosion technology of amount, and Jing galvanizings by dipping process steel component table
Face forms one layer of zinc coat.When plating piece is deposited in wet environment storage or summer overcast and rainy long storage time or not smooth environment of divulging information
Plating piece surface easily produces white or the grey corrosion product based on alkali formula zinc oxide when putting, and is referred to as white rust.According to relevant criterion
Such as GB/T 13912 (metal cladding steel piece dip galvanized technical requirements and test method) and (the iron and steel systems of ISO 1461
Part galvanizing by dipping technical conditions and test method) regulation, as long as the thickness of zinc coat is more than setting, plating piece surface allows to be present
Obfuscation or grayish color non-uniform areas；And specify, the plating piece stored under wet condition, surface allows the presence of white rust；And
Point out that the white rust that plating piece surface is present cannot function as the reasons why rejecting.Although " white rust " that plating piece surface occurs does not affect zinc coat
Protection effect, but industry present situation require then be delivery when do not allow plating piece surface to there is white rust.Therefore, current hot-dip
Often using Passivation Treatment prevent plating piece surface from white rust occur in zinc technology flow process.Passivation is the post processing work of hot-dip galvanizing technique
Sequence, plating piece surface forms one layer of chemical composition coating after passivated process, can prevent plating piece surface from producing white rust within one period.
Traditional chromating technical maturity, simple to operate, protection binding force of membrane are good, therefore it is more in the ripe application of galvanizing by dipping industry
Year.But there is serious murder by poisoning and environmental issue, such as Cr in chromate6+Have severe toxicity and for carcinogen, from preserving the ecological environment and
The angle of human health is set out, the use of domestic each network of rivers and water source area environmental administration to galvanizing by dipping production process chromate
Have issued ban.
In recent years people turn to sight and find nontoxic or low toxicity chromate substitute, using transition element, rare earth,
Silicate, humic acid etc. have carried out substantial amounts of research work substituting chromate, successively have developed silicate passivation, rotten plant
Acid passivation and phosphate passivation-phosphatization etc..Such as Chinese patent (application number：CN 201510830363.2) there is provided a kind of hot dip
The chrome-free tanning agent of zinc layers, it is made up of sodium metasilicate, sodium tungstate, fluotitanic acid, hydrogen peroxide, nitric acid, phosphoric acid and film forming accelerating；
Chinese patent (application number：CN 201510382539.2) a kind of chrome-free tanning agent there is provided batch galvanizing and its preparation
Method, it is by aminopropyl trimethoxysilane, lactic acid, nitric acid, sodium molybdate, absolute ethyl alcohol, titanyl sulfate, tannic acid, phenyl three
Ethoxysilane, hydroxy ethylene diphosphonic acid, calgon, polyurethane, hydroxy ethylene diphosphonic acid, tetraethyl orthosilicate,
Calcium silicates and deionized water are constituted；Chinese patent (application number：CN 201510380882.3) use there is provided a kind of hot-dip galvanizing sheet steel
Chrome-free tanning agent and preparation method thereof, it is by acrylic resin, phytic acid, sodium metasilicate, ATMP, thiocarbamide, tri-chlorination
Titanium, tannic acid, succinic acid, perfluorooctane sulfonate, benzothiazole, Ludox, phenyl triethoxysilane, hydroxyl ethidine di 2 ethylhexyl phosphonic acid,
Vanadyl acetylacetonate, polyethyleneimine and deionized water composition；Chinese patent (application number：CN 201510080210.0) provide
A kind of zinc coat chromium-free passivation liquid, it is made up of aqueous alkide resin, molybdate, zirconium carbonate amine, phosphoric acid and water；It is Chinese special
Sharp (application number：CN 201510725271.8) there is provided a kind of high-efficiency environment friendly chromium-free passivation liquid and preparation method thereof, it is by molybdenum phosphorus
Hydrochlorate, sodium vanadate, sodium tungstate, phytic acid, tartaric acid, tannic acid, poly- front three base oxethyl modified epoxy, corrosion inhibiting and descaling agent,
Hole sealing agent, film forming agent, antioxidant and aluminium triphosphate composition.When dip galvanized is carried out using these inactivating treatment liquids
During process, the film forming procedure of Several Thiourea Derivatives on Zinc Plate Surface is mainly passivation reaction, and passivation effect is still difficult to reach the passivation of traditional chromium hydrochlorate
The quality and outward appearance of film.So, study a kind of new Seal treatment agent generation passivation simultaneously and sealing effect then can carry significantly
The anti-corrosion capability of high dip galvanized, this is also galvanizing by dipping art personnel's problem demanding prompt solution.
The content of the invention
Present invention aim to overcome that the deficiencies in the prior art, there is provided a kind of environment-friendly type galvanizing by dipping Seal treatment agent,
Inorganic agent component of the present invention consists of HNO320～30ml/l, Na2SiO330～50g/l, H3PO45～
10ml/l, H2O225～40ml/l, 3～5ml/l of phytic acid, Zn (H2PO4)210～20g/l, 0.5～3ml/l of shellac solution, steam
Distilled water.
Shellac solution in the inorganic agent component composition is the alcoholic solution of shellac content 2%.
Shellac solution in the inorganic agent component composition can also be the sodium hydroxide solution of shellac content 10%.
First by Na when the inorganic agent is prepared2SiO3In being added to distilled water, then add HNO3、H3PO4、H2O2、Zn
(H2PO4)2, finally add phytic acid and shellac solution.
When the inorganic agent is used for the Seal treatment of dip galvanized, condition of work is pH 3～5, and temperature is room temperature～40
DEG C, process time is 15～30s, and wherein pH value can use H3PO4Or H2O2Adjustment.
When the Seal treatment agent of the present invention is processed for dip galvanized, the constituent HNO in sealer3And coating surface
Generation chemical reaction, plays a part of light, H in constituent3PO4With Zn (H2PO4)2Play phosphorization；Silicon in constituent
Sour sodium is in the capping reagent with SiO2Exist with silicon-oxygen polymer state, the product of sodium metasilicate and zinc when zinc coat immerses inorganic agent
It is deposited upon Several Thiourea Derivatives on Zinc Plate Surface and forms one layer of complete film layer of covering, in addition the phytic acid in constituent is also produced in coating surface
A certain degree of organic matter passivation effect.In treatment fluid environment, the shellac added in sealer be attached to coating and other
Constituent reacts the film surface to be formed, and can form the fine and close separation layer of one layer of protection against the tide, waterproof.So, dip galvanized is worked as
Coating surface produces passivation+closing double effectses Jing after the Seal treatment agent of the present invention is processed, and is remarkably improved the anti-corrosion of coating
Performance.
Beneficial effects of the present invention：
(1) there is no pollution of chromium in Seal treatment agent of the invention.
The galvanizing by dipping of the present invention does not contain chromium with Seal treatment agent component composition, Several Thiourea Derivatives on Zinc Plate Surface closing during Seal treatment
There is no the transformation of chromium compound in the forming process of film layer, so not containing chromium in the closing film layer of Several Thiourea Derivatives on Zinc Plate Surface yet；In addition, envelope
Close in the waste liquid of inorganic agent and also do not contain chromium.So the Seal treatment agent of the present invention is not deposited in preparation, use, waste treatment process
In the pollution of chromium, the characteristic of environmental protection with Chrome-free.
(2) Seal treatment agent of the invention has the double effectses of passivation+closing.
Specific embodiment
The present invention is described in further detail with reference to specific embodiment, but protection scope of the present invention is not limited to
The content.
Environment-friendly type galvanizing by dipping of the present invention is constituted with the preparation of Seal treatment agent：HNO320～30ml/l, Na2SiO3 30
～50g/l, H3PO45～10ml/l, H2O225～40ml/l, 3～5ml/l of phytic acid, Zn (H2PO4)210～20g/l, shellac
0.5～3ml/l of solution, distilled water.
Shellac solution in above-mentioned inorganic agent composition is the alcoholic solution of shellac content 2%.
Shellac solution in above-mentioned inorganic agent composition is the sodium hydroxide solution of shellac content 10%.
First by Na when above-mentioned inorganic agent is prepared2SiO3In being added to distilled water, then add HNO3、H3PO4、H2O2、Zn
(H2PO4)2, finally add phytic acid and shellac solution.
When above-mentioned inorganic agent is used for the Seal treatment of dip galvanized, the pH of condition of work is 3～5, temperature be room temperature～
40 DEG C, process time is 15～30s, and wherein pH value can use H3PO4Or H2O2Adjustment.
Embodiment 1
Environment-friendly type galvanizing by dipping is constituted with the preparation of Seal treatment agent：HNO320ml/l, Na2SiO330g/l, H3PO4
5ml/l, H2O225ml/l, phytic acid 3ml/l, Zn (H2PO4)218g/l, shellac alcoholic solution 3ml/l, distilled water.
The a collection of angle steel plating piece hanging immersion cooled down after just galvanizing by dipping is filled in the treatment trough of above-mentioned sealer, groove
Liquid temp is room temperature, dip time 30s, and hanger is slightly moved during dipping, and plating piece is removed into the vacant 10s of enclosed slot after 30s, to be plated
Part surface finds that plating piece surface color is uniform after drying, and surface has one layer of translucent, light yellow close membrane that covering is complete.
Embodiment 2
Environment-friendly type galvanizing by dipping is constituted with the preparation of Seal treatment agent：HNO330ml/l, Na2SiO350g/l, H3PO4
10ml/l, H2O240ml/l, phytic acid 5ml/l, Zn (H2PO4)210g/l, shellac sodium hydroxide solution 0.5ml/l, distilled water.
The a collection of welding steel beam column hanging immersion cooled down after just galvanizing by dipping is filled in the treatment trough of above-mentioned sealer,
Tank liquor temperature is 40 DEG C, dip time 15s, and hanger is slightly moved during dipping, and plating piece is removed into the vacant 15s of enclosed slot after 15s, is treated
Plating piece surface finds that plating piece surface color is uniform after drying, and surface has one layer of translucent lurid close membrane, close membrane
Cover complete, close membrane is complete at the turning or the line of rabbet joint of commissure or component.
Embodiment 3
Environment-friendly type galvanizing by dipping is constituted with the preparation of Seal treatment agent：HNO325ml/l, Na2SiO340g/l, H3PO4
8ml/l, H2O230ml/l, phytic acid 4ml/l, Zn (H2PO4)215g/l, shellac alcoholic solution 2ml/l, distilled water.
The a collection of hung steel tube immersion cooled down after just galvanizing by dipping is filled in the treatment trough of above-mentioned sealer, tank liquor temperature
Spend for 30 DEG C, dip time 20s, hanger is slightly moved during dipping, plating piece is removed into the vacant 10s of enclosed slot, unplated piece table after 20s
Face finds that coating steel pipe surface color is uniform after drying, and coating surface has one layer of translucent lurid close membrane, closing
Film covers complete.
Claims (4)
1. a kind of environment-friendly type galvanizing by dipping Seal treatment agent, it is characterised in that：Inorganic agent component consists of HNO320～30ml/
L, Na2SiO330～50g/l, H3PO45～10ml/l, H2O225～40ml/l, 3～5ml/l of phytic acid, Zn (H2PO4)210～
20g/l, 0.5～3ml/l of shellac solution, distilled water.
2. a kind of environment-friendly type galvanizing by dipping Seal treatment agent according to claim 1, it is characterised in that：In its component
It can be shellac alcoholic solution or shellac sodium hydroxide solution that shellac solution is.
3. a kind of environment-friendly type galvanizing by dipping Seal treatment agent according to claim 1 and 2, it is characterised in that：Its component
In shellac alcoholic solution be shellac content be 2% alcoholic solution.
4. a kind of environment-friendly type galvanizing by dipping Seal treatment agent according to claim 1 and 2, it is characterised in that：Its component
In shellac sodium hydroxide solution be shellac content be 10% sodium hydroxide solution.
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| CN201611231030.9A CN106637028A (en) | 2016-12-27 | 2016-12-27 | Environment-friendly sealing treatment agent for hot-dip galvanizing |
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| CN201611231030.9A CN106637028A (en) | 2016-12-27 | 2016-12-27 | Environment-friendly sealing treatment agent for hot-dip galvanizing |
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ID=58831770
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136905A (en) * | 2018-09-07 | 2019-01-04 | 重庆铁马工业集团有限公司 | A kind of phosphatization post-passivation sealant compositions |
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| CN101886260A (en) * | 2010-07-08 | 2010-11-17 | 南通飞拓生物科技有限公司 | Composite film chromium-free passivant |
| CN105779983A (en) * | 2016-04-19 | 2016-07-20 | 昆明理工大学 | Chromium-free iridescent passivation liquid |
| CN107418527A (en) * | 2017-08-21 | 2017-12-01 | 成都德联汽车用品有限公司 | A kind of high-efficiency anticorrosive engine coolant |
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| DE1278805B (en) * | 1965-12-23 | 1968-09-26 | Rasa Kasei Kabushiki Kaisha | Phosphate corrosion protection |
| CN1082626A (en) * | 1992-08-06 | 1994-02-23 | 中国科学院上海硅酸盐研究所 | Phosphate-gallate series rust-removing and anti-rust agent |
| CN101886260A (en) * | 2010-07-08 | 2010-11-17 | 南通飞拓生物科技有限公司 | Composite film chromium-free passivant |
| CN105779983A (en) * | 2016-04-19 | 2016-07-20 | 昆明理工大学 | Chromium-free iridescent passivation liquid |
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| CN109136905A (en) * | 2018-09-07 | 2019-01-04 | 重庆铁马工业集团有限公司 | A kind of phosphatization post-passivation sealant compositions |
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