JPS63171685A - 耐食性白色クロメ−ト処理方法 - Google Patents
耐食性白色クロメ−ト処理方法Info
- Publication number
- JPS63171685A JPS63171685A JP31292086A JP31292086A JPS63171685A JP S63171685 A JPS63171685 A JP S63171685A JP 31292086 A JP31292086 A JP 31292086A JP 31292086 A JP31292086 A JP 31292086A JP S63171685 A JPS63171685 A JP S63171685A
- Authority
- JP
- Japan
- Prior art keywords
- chromate
- corrosion
- inorg
- ion
- inorganic
- 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.)
- Granted
Links
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 230000015572 biosynthetic process Effects 0.000 title 1
- 230000007797 corrosion Effects 0.000 claims abstract description 41
- 238000005260 corrosion Methods 0.000 claims abstract description 41
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 12
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims abstract description 11
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 7
- 230000002378 acidificating effect Effects 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 150000002500 ions Chemical class 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 27
- 150000001449 anionic compounds Chemical class 0.000 claims description 17
- 229910001412 inorganic anion Inorganic materials 0.000 claims description 17
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 229910021645 metal ion Inorganic materials 0.000 claims description 7
- 239000000084 colloidal system Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 229940085991 phosphate ion Drugs 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate group Chemical group [N+](=O)([O-])[O-] NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 13
- 239000011248 coating agent Substances 0.000 abstract description 11
- 229910001335 Galvanized steel Inorganic materials 0.000 abstract description 7
- 239000008397 galvanized steel Substances 0.000 abstract description 7
- -1 phosphoric acid ion Chemical class 0.000 abstract description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract description 3
- 150000001450 anions Chemical class 0.000 abstract 3
- BFYCFODZOFWWAA-UHFFFAOYSA-N 2,4,6-trimethylpyridine-3-carbaldehyde Chemical compound CC1=CC(C)=C(C=O)C(C)=N1 BFYCFODZOFWWAA-UHFFFAOYSA-N 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 description 30
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 21
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 238000007747 plating Methods 0.000 description 10
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 3
- 229910001297 Zn alloy Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 235000011007 phosphoric acid Nutrition 0.000 description 3
- 150000003016 phosphoric acids Chemical class 0.000 description 3
- 229920000137 polyphosphoric acid Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000002087 whitening effect Effects 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 229910000680 Aluminized steel Inorganic materials 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 206010027146 Melanoderma Diseases 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910018605 Ni—Zn Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 229910001430 chromium ion Inorganic materials 0.000 description 2
- ABXXWVKOBZHNNF-UHFFFAOYSA-N chromium(3+);dioxido(dioxo)chromium Chemical compound [Cr+3].[Cr+3].[O-][Cr]([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Cr]([O-])(=O)=O ABXXWVKOBZHNNF-UHFFFAOYSA-N 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 235000002949 phytic acid Nutrition 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910020521 Co—Zn Inorganic materials 0.000 description 1
- 101000702393 Homo sapiens Signal peptide peptidase-like 2B Proteins 0.000 description 1
- 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 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
- 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 description 1
- 102100030404 Signal peptide peptidase-like 2B Human genes 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 229910009369 Zn Mg Inorganic materials 0.000 description 1
- 229910007573 Zn-Mg Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 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
- 159000000009 barium salts Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000467 phytic acid Substances 0.000 description 1
- 229940068041 phytic acid Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 159000000008 strontium salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000004383 yellowing Methods 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
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
- C23C22/33—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also phosphates
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31292086A JPS63171685A (ja) | 1986-12-30 | 1986-12-30 | 耐食性白色クロメ−ト処理方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31292086A JPS63171685A (ja) | 1986-12-30 | 1986-12-30 | 耐食性白色クロメ−ト処理方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63171685A true JPS63171685A (ja) | 1988-07-15 |
| JPH0368115B2 JPH0368115B2 (ko) | 1991-10-25 |
Family
ID=18035059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31292086A Granted JPS63171685A (ja) | 1986-12-30 | 1986-12-30 | 耐食性白色クロメ−ト処理方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63171685A (ko) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01283382A (ja) * | 1988-01-22 | 1989-11-14 | Nkk Corp | 耐黒変性、耐食性、耐指紋性およびアルカリ脱脂後のクロム固定率に優れた、クロメート処理電気亜鉛メッキ鋼板の製造方法 |
| JPH02104673A (ja) * | 1988-10-13 | 1990-04-17 | Sumitomo Metal Ind Ltd | 色調の明るいクロメート処理亜鉛メッキ鋼材 |
| EP0724488A4 (en) * | 1993-08-14 | 1997-01-08 | Henkel Corp | PROCESS FOR TREATING ZINCIFERATED SURFACES |
| WO1999018257A1 (en) * | 1997-10-07 | 1999-04-15 | Henkel Corporation | Conversion coating zinciferous surfaces to resist blackening and white rust |
| US6461449B1 (en) | 1997-10-07 | 2002-10-08 | Henkel Corporation | Conversion coating zinciferous surfaces to resist blackening and white rust |
| US10113070B2 (en) | 2015-11-04 | 2018-10-30 | Ppg Industries Ohio, Inc. | Pretreatment compositions and methods of treating a substrate |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS522851A (en) * | 1975-06-25 | 1977-01-10 | Nippon Steel Corp | Backing flux for one side arc welding |
| JPS5214691A (en) * | 1975-07-25 | 1977-02-03 | Mitsuboshi Belting Ltd | Process for preparing polyurethane |
| JPS5268036A (en) * | 1975-12-04 | 1977-06-06 | Nisshin Steel Co Ltd | Process for surface treating steel sheet by phosphoric acidd0chromic acid bath |
| JPS5633469A (en) * | 1979-08-21 | 1981-04-03 | Rolls Royce | Powder for flame spraying |
| JPS57174469A (en) * | 1981-04-21 | 1982-10-27 | Nisshin Steel Co Ltd | Surface treatment of plated steel plate |
| JPS60218483A (ja) * | 1984-03-23 | 1985-11-01 | パーカー・ケミカル・カンパニー | 金属表面処理用水性組成物及び処理方法 |
| JPS6158552A (ja) * | 1984-08-31 | 1986-03-25 | Nisshin Oil Mills Ltd:The | 新規調味料 |
| JPS61284581A (ja) * | 1985-06-10 | 1986-12-15 | Kobe Steel Ltd | クロメ−ト処理メツキ鋼板ならびにその製造法 |
| JPS63137180A (ja) * | 1986-11-28 | 1988-06-09 | Nkk Corp | 亜鉛または亜鉛合金メツキ鋼板のクロメ−ト処理方法 |
-
1986
- 1986-12-30 JP JP31292086A patent/JPS63171685A/ja active Granted
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS522851A (en) * | 1975-06-25 | 1977-01-10 | Nippon Steel Corp | Backing flux for one side arc welding |
| JPS5214691A (en) * | 1975-07-25 | 1977-02-03 | Mitsuboshi Belting Ltd | Process for preparing polyurethane |
| JPS5268036A (en) * | 1975-12-04 | 1977-06-06 | Nisshin Steel Co Ltd | Process for surface treating steel sheet by phosphoric acidd0chromic acid bath |
| JPS5633469A (en) * | 1979-08-21 | 1981-04-03 | Rolls Royce | Powder for flame spraying |
| JPS57174469A (en) * | 1981-04-21 | 1982-10-27 | Nisshin Steel Co Ltd | Surface treatment of plated steel plate |
| JPS60218483A (ja) * | 1984-03-23 | 1985-11-01 | パーカー・ケミカル・カンパニー | 金属表面処理用水性組成物及び処理方法 |
| JPS6158552A (ja) * | 1984-08-31 | 1986-03-25 | Nisshin Oil Mills Ltd:The | 新規調味料 |
| JPS61284581A (ja) * | 1985-06-10 | 1986-12-15 | Kobe Steel Ltd | クロメ−ト処理メツキ鋼板ならびにその製造法 |
| JPS63137180A (ja) * | 1986-11-28 | 1988-06-09 | Nkk Corp | 亜鉛または亜鉛合金メツキ鋼板のクロメ−ト処理方法 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01283382A (ja) * | 1988-01-22 | 1989-11-14 | Nkk Corp | 耐黒変性、耐食性、耐指紋性およびアルカリ脱脂後のクロム固定率に優れた、クロメート処理電気亜鉛メッキ鋼板の製造方法 |
| JPH02104673A (ja) * | 1988-10-13 | 1990-04-17 | Sumitomo Metal Ind Ltd | 色調の明るいクロメート処理亜鉛メッキ鋼材 |
| JPH0536514B2 (ko) * | 1988-10-13 | 1993-05-31 | Sumitomo Metal Ind | |
| EP0724488A4 (en) * | 1993-08-14 | 1997-01-08 | Henkel Corp | PROCESS FOR TREATING ZINCIFERATED SURFACES |
| WO1999018257A1 (en) * | 1997-10-07 | 1999-04-15 | Henkel Corporation | Conversion coating zinciferous surfaces to resist blackening and white rust |
| US6461449B1 (en) | 1997-10-07 | 2002-10-08 | Henkel Corporation | Conversion coating zinciferous surfaces to resist blackening and white rust |
| US10113070B2 (en) | 2015-11-04 | 2018-10-30 | Ppg Industries Ohio, Inc. | Pretreatment compositions and methods of treating a substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0368115B2 (ko) | 1991-10-25 |
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