JP6626205B2 - マグネシウム合金用複合体化成皮膜の皮膜形成処理剤、および成膜方法 - Google Patents
マグネシウム合金用複合体化成皮膜の皮膜形成処理剤、および成膜方法 Download PDFInfo
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- JP6626205B2 JP6626205B2 JP2018529654A JP2018529654A JP6626205B2 JP 6626205 B2 JP6626205 B2 JP 6626205B2 JP 2018529654 A JP2018529654 A JP 2018529654A JP 2018529654 A JP2018529654 A JP 2018529654A JP 6626205 B2 JP6626205 B2 JP 6626205B2
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- magnesium alloy
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims description 138
- 239000000126 substance Substances 0.000 title claims description 57
- 239000003795 chemical substances by application Substances 0.000 title claims description 52
- 238000006243 chemical reaction Methods 0.000 title claims description 40
- 239000002131 composite material Substances 0.000 title claims description 38
- 238000000034 method Methods 0.000 title claims description 36
- 239000000243 solution Substances 0.000 claims description 35
- 239000007864 aqueous solution Substances 0.000 claims description 34
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 31
- 238000007739 conversion coating Methods 0.000 claims description 30
- 229910001427 strontium ion Inorganic materials 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 21
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- 229910021389 graphene Inorganic materials 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 14
- 238000007654 immersion Methods 0.000 claims description 14
- 230000002378 acidificating effect Effects 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- PWYYWQHXAPXYMF-UHFFFAOYSA-N strontium(2+) Chemical compound [Sr+2] PWYYWQHXAPXYMF-UHFFFAOYSA-N 0.000 claims description 9
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- 229940085991 phosphate ion Drugs 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 6
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 6
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 6
- 239000001488 sodium phosphate Substances 0.000 claims description 6
- 150000007524 organic acids Chemical class 0.000 claims description 5
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 3
- 229910000396 dipotassium phosphate Inorganic materials 0.000 claims description 3
- 235000019797 dipotassium phosphate Nutrition 0.000 claims description 3
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 3
- 229910000397 disodium phosphate Inorganic materials 0.000 claims description 3
- 235000019800 disodium phosphate Nutrition 0.000 claims description 3
- 229910001631 strontium chloride Inorganic materials 0.000 claims description 3
- AHBGXTDRMVNFER-UHFFFAOYSA-L strontium dichloride Chemical compound [Cl-].[Cl-].[Sr+2] AHBGXTDRMVNFER-UHFFFAOYSA-L 0.000 claims description 3
- RXSHXLOMRZJCLB-UHFFFAOYSA-L strontium;diacetate Chemical compound [Sr+2].CC([O-])=O.CC([O-])=O RXSHXLOMRZJCLB-UHFFFAOYSA-L 0.000 claims description 3
- JKGZNVNIOGGUKH-UHFFFAOYSA-L strontium;diiodate Chemical compound [Sr+2].[O-]I(=O)=O.[O-]I(=O)=O JKGZNVNIOGGUKH-UHFFFAOYSA-L 0.000 claims description 3
- 229910000404 tripotassium phosphate Inorganic materials 0.000 claims description 3
- 235000019798 tripotassium phosphate Nutrition 0.000 claims description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 3
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 3
- LNSYCBFBTCINRL-UHFFFAOYSA-N tristrontium;diborate Chemical compound [Sr+2].[Sr+2].[Sr+2].[O-]B([O-])[O-].[O-]B([O-])[O-] LNSYCBFBTCINRL-UHFFFAOYSA-N 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000007517 polishing process Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000007797 corrosion Effects 0.000 description 25
- 238000005260 corrosion Methods 0.000 description 25
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 24
- 239000011777 magnesium Substances 0.000 description 14
- 238000000576 coating method Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 239000011780 sodium chloride Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 8
- 229910019142 PO4 Inorganic materials 0.000 description 8
- 239000011247 coating layer Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 8
- 229910052749 magnesium Inorganic materials 0.000 description 8
- -1 rare earth metal salts Chemical class 0.000 description 8
- XMRXQEKGQFJLKK-UHFFFAOYSA-L strontium hydroxy phosphate Chemical compound P(=O)(OO)([O-])[O-].[Sr+2] XMRXQEKGQFJLKK-UHFFFAOYSA-L 0.000 description 8
- 239000010452 phosphate Substances 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 230000004580 weight loss Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 235000005985 organic acids Nutrition 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910052712 strontium Inorganic materials 0.000 description 4
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 229910009378 Zn Ca Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003929 acidic solution Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000001506 calcium phosphate Substances 0.000 description 3
- 229910000389 calcium phosphate Inorganic materials 0.000 description 3
- 235000011010 calcium phosphates Nutrition 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 238000007746 phosphate conversion coating Methods 0.000 description 3
- 235000011007 phosphoric acid Nutrition 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- MHJAJDCZWVHCPF-UHFFFAOYSA-L dimagnesium phosphate Chemical compound [Mg+2].OP([O-])([O-])=O MHJAJDCZWVHCPF-UHFFFAOYSA-L 0.000 description 2
- 229910000395 dimagnesium phosphate Inorganic materials 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 159000000008 strontium salts Chemical class 0.000 description 2
- JOPDZQBPOWAEHC-UHFFFAOYSA-H tristrontium;diphosphate Chemical compound [Sr+2].[Sr+2].[Sr+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O JOPDZQBPOWAEHC-UHFFFAOYSA-H 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012670 alkaline solution Substances 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
- 238000002048 anodisation reaction Methods 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-M dihydrogenphosphate Chemical compound OP(O)([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-M 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000010335 hydrothermal treatment Methods 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 1
- 229960002261 magnesium phosphate Drugs 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000009996 mechanical pre-treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000007745 plasma electrolytic oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000005402 stannate group Chemical group 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical class [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 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
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—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
- C23C22/22—Orthophosphates containing alkaline earth metal 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
- C23C22/78—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
Landscapes
- 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)
Description
を含む。
Claims (12)
- 水溶液および水溶液に溶解しない還元型酸化グラフェンを成分とするマグネシウム合金用複合体化成皮膜の皮膜形成処理剤であって、前記水溶液に0.1〜2.5mol/Lのストロンチウムイオンと、0.06〜1.5mo1/Lのリン酸イオンとが含まれ、前記水溶液のpHが1.5〜4.5で、前記還元型酸化グラフェンの濃度が0.1〜5mg/Lであることを特徴とする、マグネシウム合金用複合体化成皮膜の皮膜形成処理剤。
- 前記ストロンチウムイオンと前記リン酸イオンとの比が1:(0.2〜0.9)である、請求項1に記載のマグネシウム合金用複合体化成皮膜の皮膜形成処理剤。
- 前記ストロンチウムイオンが、硝酸ストロンチウム、塩化ストロンチウム、酢酸ストロンチウム、硼酸ストロンチウム、およびヨウ素酸ストロンチウムからなる群から選択される少なくとも1種に由来するものである、請求項1に記載のマグネシウム合金用複合体化成皮膜の皮膜形成処理剤。
- 前記ストロンチウムイオンが、硝酸ストロンチウムに由来するものである、請求項3に記載のマグネシウム合金用複合体化成皮膜の皮膜形成処理剤。
- 前記リン酸イオンが、リン酸二水素アンモニウム、リン酸三ナトリウム、リン酸二ナトリウム、リン酸三カリウム、およびリン酸二カリウムからなる群から選択される少なくとも1種に由来するものである、請求項1に記載のマグネシウム合金用複合体化成皮膜の皮膜形成処理剤。
- 前記リン酸イオンが、リン酸二水素アンモニウムに由来するものである、請求項5に記載のマグネシウム合金用複合体化成皮膜の皮膜形成処理剤。
- 前記水溶液に、前記水溶液のpHが1.5〜4.5となるように酸性の緩衝剤を含む、請求項5に記載のマグネシウム合金用複合体化成皮膜の皮膜形成処理剤。
- 前記酸性の緩衝剤が、硝酸、硫酸、および有機酸からなる群から選択される少なくとも1種である、請求項7に記載のマグネシウム合金用複合体化成皮膜の皮膜形成処理剤。
- 請求項1〜8のいずれか1項に記載の皮膜形成処理剤を用いてマグネシウム合金の複合体化成皮膜を形成する成膜方法であって、
(1)マグネシウム合金の基材表面に前処理を施す工程と、
(2)前記マグネシウム合金の基材を前記皮膜形成処理剤中に浸漬させる工程と、
(3)前記マグネシウム合金材を取り出して空気中で乾燥させる工程と、
を含む、成膜方法。 - 前記工程(1)において、前記前処理が、
(1a)研磨加工を施す工程と、
(1b)アルコールおよびアセトンをそれぞれ用いて室温でマグネシウム合金の基材に超音波洗浄を施す工程と、
含む、請求項9に記載の成膜方法。 - 前記工程(1)において、前記前処理が、さらに、
(1c)前記マグネシウム合金の基材を濃リン酸溶液中で活性化させる工程と、
(1d)前記マグネシウム合金の基材をクエン酸中で洗浄する工程と、
(1e)前記マグネシウム合金の基材を希水酸化ナトリウム溶液において80℃〜150℃の水熱条件下で5〜15min反応させる工程と、
(1f)室温条件下で、クエン酸で洗浄する工程と、
(1g)アルコールおよびアセトンをそれぞれ用いて室温で前記マグネシウム合金の基材に超音波洗浄を施す工程と、
含む、請求項10に記載の成膜方法。 - 前記工程(2)において、皮膜形成の温度を室温〜100℃とし、浸漬時間を5〜15minとする、請求項9に記載の成膜方法。
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