CA2169193A1 - Process for treating zinciferous surfaces - Google Patents
Process for treating zinciferous surfacesInfo
- Publication number
- CA2169193A1 CA2169193A1 CA002169193A CA2169193A CA2169193A1 CA 2169193 A1 CA2169193 A1 CA 2169193A1 CA 002169193 A CA002169193 A CA 002169193A CA 2169193 A CA2169193 A CA 2169193A CA 2169193 A1 CA2169193 A1 CA 2169193A1
- Authority
- CA
- Canada
- Prior art keywords
- ions
- chromium
- ion
- molar ratio
- process according
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 28
- 230000008569 process Effects 0.000 title claims description 26
- 229910001430 chromium ion Inorganic materials 0.000 claims abstract description 41
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 31
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 18
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 15
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 12
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 150000007522 mineralic acids Chemical class 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 38
- 239000010959 steel Substances 0.000 claims description 38
- 150000002500 ions Chemical class 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000008119 colloidal silica Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 1
- 239000002344 surface layer Substances 0.000 claims 1
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 abstract description 25
- 239000011701 zinc Substances 0.000 abstract description 22
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 17
- -1 nitrate ions Chemical class 0.000 abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 239000011651 chromium Substances 0.000 description 26
- 229910052804 chromium Inorganic materials 0.000 description 23
- 230000000694 effects Effects 0.000 description 20
- 238000012360 testing method Methods 0.000 description 19
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 17
- 239000002253 acid Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 10
- 238000007747 plating Methods 0.000 description 9
- 230000002401 inhibitory effect Effects 0.000 description 8
- 238000007792 addition Methods 0.000 description 7
- 150000001450 anions Chemical class 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 241000282320 Panthera leo Species 0.000 description 5
- YFONKFDEZLYQDH-OPQQBVKSSA-N N-[(1R,2S)-2,6-dimethyindan-1-yl]-6-[(1R)-1-fluoroethyl]-1,3,5-triazine-2,4-diamine Chemical compound C[C@@H](F)C1=NC(N)=NC(N[C@H]2C3=CC(C)=CC=C3C[C@@H]2C)=N1 YFONKFDEZLYQDH-OPQQBVKSSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 229910017709 Ni Co Inorganic materials 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001449 anionic compounds Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- ONIOAEVPMYCHKX-UHFFFAOYSA-N carbonic acid;zinc Chemical compound [Zn].OC(O)=O ONIOAEVPMYCHKX-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000013527 degreasing agent Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 229910001412 inorganic anion Inorganic materials 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000007775 late Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910000010 zinc carbonate Inorganic materials 0.000 description 2
- 235000004416 zinc carbonate Nutrition 0.000 description 2
- 239000011667 zinc carbonate Substances 0.000 description 2
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Inorganic materials [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 2
- SMNDYUVBFMFKNZ-UHFFFAOYSA-N 2-furoic acid Chemical compound OC(=O)C1=CC=CO1 SMNDYUVBFMFKNZ-UHFFFAOYSA-N 0.000 description 1
- BSFODEXXVBBYOC-UHFFFAOYSA-N 8-[4-(dimethylamino)butan-2-ylamino]quinolin-6-ol Chemical compound C1=CN=C2C(NC(CCN(C)C)C)=CC(O)=CC2=C1 BSFODEXXVBBYOC-UHFFFAOYSA-N 0.000 description 1
- 241000518994 Conta Species 0.000 description 1
- DSSNKXWIIZZABW-UHFFFAOYSA-N OB(O)O.O[N+]([O-])=O Chemical compound OB(O)O.O[N+]([O-])=O DSSNKXWIIZZABW-UHFFFAOYSA-N 0.000 description 1
- 108091034117 Oligonucleotide Proteins 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010349 cathodic reaction Methods 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- PYRZPBDTPRQYKG-UHFFFAOYSA-N cyclopentene-1-carboxylic acid Chemical compound OC(=O)C1=CCCC1 PYRZPBDTPRQYKG-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- UOURRHZRLGCVDA-UHFFFAOYSA-D pentazinc;dicarbonate;hexahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Zn+2].[Zn+2].[Zn+2].[Zn+2].[Zn+2].[O-]C([O-])=O.[O-]C([O-])=O UOURRHZRLGCVDA-UHFFFAOYSA-D 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
- 229910021511 zinc hydroxide 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
- 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
- C23C22/30—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 trivalent chromium
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00525—Coating or impregnation materials for metallic surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Chemical Treatment Of Metals (AREA)
- Electroplating Methods And Accessories (AREA)
- Coating With Molten Metal (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22222993A JP3288152B2 (ja) | 1993-08-14 | 1993-08-14 | 耐黒変性及び耐白錆性に優れた亜鉛系めっき鋼板の製造方法 |
| JP5/222229 | 1993-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2169193A1 true CA2169193A1 (en) | 1995-02-23 |
Family
ID=16779146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002169193A Abandoned CA2169193A1 (en) | 1993-08-14 | 1994-08-11 | Process for treating zinciferous surfaces |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0724488A4 (OSRAM) |
| JP (1) | JP3288152B2 (OSRAM) |
| KR (1) | KR100311062B1 (OSRAM) |
| CN (1) | CN1102442A (OSRAM) |
| AU (1) | AU7714194A (OSRAM) |
| CA (1) | CA2169193A1 (OSRAM) |
| TW (1) | TW247321B (OSRAM) |
| WO (1) | WO1995005247A1 (OSRAM) |
| ZA (1) | ZA946049B (OSRAM) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998000579A1 (fr) * | 1996-07-02 | 1998-01-08 | Nkk Corporation | Procede de production de feuilles d'acier chromees et galvanisees a chaud, contenant du plomb et ayant une excellente resistance au noircissement et a la formation de rouille blanche |
| US6461449B1 (en) | 1997-10-07 | 2002-10-08 | Henkel Corporation | Conversion coating zinciferous surfaces to resist blackening and white rust |
| CN1062030C (zh) * | 1998-08-28 | 2001-02-14 | 宝山钢铁(集团)公司 | 高抗黑变性能电镀锌钢板的生产方法 |
| KR100436913B1 (ko) * | 1999-11-09 | 2004-06-23 | 주식회사 포스코 | 크로메이트 처리용액 및 크로메이트 처리강판의 제조방법 |
| KR101560947B1 (ko) | 2013-12-24 | 2015-10-15 | 주식회사 포스코 | 내식성 및 내흑변성이 우수한 표면처리 용액 및 이를 이용하여 표면처리된 Zn-Al-Mg 합금도금강판의 제조방법 |
| CN106010088A (zh) * | 2016-05-20 | 2016-10-12 | 江苏固格澜栅防护设施有限公司 | 锌钢护栏及其制作方法 |
| KR101786358B1 (ko) | 2016-06-14 | 2017-10-18 | 주식회사 포스코 | 강판표면처리용 용액 조성물, 이를 이용하여 표면처리된 아연계 도금강판, 및 그 제조방법 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4683157A (en) * | 1982-11-15 | 1987-07-28 | Mosser Mark F | Thixotropic coating compositions and methods |
| JPS62278298A (ja) * | 1985-08-28 | 1987-12-03 | Kawasaki Steel Corp | クロメート処理Ｚｎ系めっき鋼板 |
| JPS6256580A (ja) * | 1985-09-05 | 1987-03-12 | Nippon Parkerizing Co Ltd | 亜鉛系メツキ鋼板のクロメ−ト塗布液 |
| JPS63171685A (ja) * | 1986-12-30 | 1988-07-15 | Nippon Steel Corp | 耐食性白色クロメ−ト処理方法 |
| CN1039915C (zh) * | 1989-07-05 | 1998-09-23 | 新日本制铁株式会社 | 方向性电磁钢板上的绝缘皮膜成型方法 |
| JP2839111B2 (ja) * | 1990-08-28 | 1998-12-16 | 日本パーカライジング株式会社 | 亜鉛系メッキ鋼板のクロメート処理方法 |
| JP3105322B2 (ja) * | 1991-12-27 | 2000-10-30 | 日産自動車株式会社 | 光輝性アルミホイールの無色クロメート皮膜形成方法 |
-
1993
- 1993-08-14 JP JP22222993A patent/JP3288152B2/ja not_active Expired - Lifetime
-
1994
- 1994-08-05 TW TW083107191A patent/TW247321B/zh active
- 1994-08-11 AU AU77141/94A patent/AU7714194A/en not_active Abandoned
- 1994-08-11 ZA ZA946049A patent/ZA946049B/xx unknown
- 1994-08-11 CA CA002169193A patent/CA2169193A1/en not_active Abandoned
- 1994-08-11 WO PCT/US1994/008318 patent/WO1995005247A1/en not_active Application Discontinuation
- 1994-08-11 EP EP94927906A patent/EP0724488A4/en not_active Withdrawn
- 1994-08-13 CN CN94109436A patent/CN1102442A/zh active Pending
- 1994-08-13 KR KR1019940020005A patent/KR100311062B1/ko not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0724488A4 (en) | 1997-01-08 |
| KR100311062B1 (ko) | 2001-12-15 |
| JPH0754156A (ja) | 1995-02-28 |
| AU7714194A (en) | 1995-03-14 |
| ZA946049B (en) | 1995-06-29 |
| EP0724488A1 (en) | 1996-08-07 |
| WO1995005247A1 (en) | 1995-02-23 |
| TW247321B (OSRAM) | 1995-05-11 |
| JP3288152B2 (ja) | 2002-06-04 |
| KR950006022A (ko) | 1995-03-20 |
| CN1102442A (zh) | 1995-05-10 |
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