WO1987005950A1 - Plated steel excellent in coatability - Google Patents
Plated steel excellent in coatability Download PDFInfo
- Publication number
- WO1987005950A1 WO1987005950A1 PCT/JP1987/000190 JP8700190W WO8705950A1 WO 1987005950 A1 WO1987005950 A1 WO 1987005950A1 JP 8700190 W JP8700190 W JP 8700190W WO 8705950 A1 WO8705950 A1 WO 8705950A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plating
- alloy
- upper layer
- coating
- layer
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 38
- 239000010959 steel Substances 0.000 title claims abstract description 38
- 238000007747 plating Methods 0.000 claims abstract description 44
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 22
- 239000000956 alloy Substances 0.000 claims abstract description 22
- 229910001297 Zn alloy Inorganic materials 0.000 claims abstract description 18
- 229910052796 boron Inorganic materials 0.000 claims abstract description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000011248 coating agent Substances 0.000 abstract description 44
- 238000000576 coating method Methods 0.000 abstract description 44
- 238000004070 electrodeposition Methods 0.000 abstract description 24
- 229910052725 zinc Inorganic materials 0.000 abstract description 6
- 229910000640 Fe alloy Inorganic materials 0.000 abstract description 5
- 229910007567 Zn-Ni Inorganic materials 0.000 abstract description 5
- 229910007614 Zn—Ni Inorganic materials 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 1
- 239000002356 single layer Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 52
- 239000011701 zinc Substances 0.000 description 15
- 229910019142 PO4 Inorganic materials 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000010452 phosphate Substances 0.000 description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 9
- 238000000151 deposition Methods 0.000 description 7
- 239000003973 paint Substances 0.000 description 7
- 238000011282 treatment Methods 0.000 description 6
- 238000007740 vapor deposition Methods 0.000 description 6
- 230000008021 deposition Effects 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- GDTSJMKGXGJFGQ-UHFFFAOYSA-N 3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound O1B([O-])OB2OB([O-])OB1O2 GDTSJMKGXGJFGQ-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 101000993059 Homo sapiens Hereditary hemochromatosis protein Proteins 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
- 229910001199 N alloy Inorganic materials 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
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- VGTPKLINSHNZRD-UHFFFAOYSA-N oxoborinic acid Chemical compound OB=O VGTPKLINSHNZRD-UHFFFAOYSA-N 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- NVIFVTYDZMXWGX-UHFFFAOYSA-N sodium metaborate Chemical compound [Na+].[O-]B=O NVIFVTYDZMXWGX-UHFFFAOYSA-N 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- -1 tetrafluoroborate Chemical compound 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
- C23C28/025—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only with at least one zinc-based layer
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
Definitions
- This invention relates to a veneer plate having excellent appearance when used for application of cation electrodeposition coating, in particular, to a vehicle body member.
- Fe plating is softer than Fe-Zn alloy plating, so no cracking occurs even when the plated steel is processed into a member, and the coating film does not appear. There are few craters. However, the amount of plating
- This invention is based on the fact that the electrodeposition coatability can be improved even with a multi-layer plated steel sheet in which Fe-based plating is applied on pure Zn-plated or Zii-yarn alloy-plated. Since it was not perfect, it is intended to further improve the electrodeposition coating property and to provide a steel plate whose manufacturing cost is inexpensive.
- the steel sheet of the present invention is superior in the electrodeposition coating property because, when B is added to the bath at the time of the upper layer coating, the uniform electrodeposition property of the steel sheet is improved. Is improved, the plating layer becomes even, and if B is contained in the upper layer, if phosphate treatment is performed as a pre-coating treatment, These serve as nuclei during the deposition of phosphate, forming a fine and dense phosphate film.As a result, the electrical conductivity of the entire steel sheet surface becomes uniform, and It is presumed that this is because the paint is uniformly electrodeposited during painting, and the generation of creators is stably suppressed.
- Ki of Tsu because steel, on the upper cases of Ki Tsu Me B containing Fe, the amount of deposition Ki Tsu because even Tsu Oh in those Ri 3 / m 2 hereinafter-sided, was or If the layer is of the element-containing Fe-based alloy, the adhesion amount Ki Tsu because even Tsu Ah at 5 / ID 2 or less Ri-sided person, Ru occurrence of coating film click Les COMPUTER is suppressed. This is because even if the amount of coating is small, the upper layer is superior in covering the lower layer, and the coverage of the lower layer by the upper layer is improved. it is conceivable that .
- the upper layer is made of an Fe—Zn alloy
- the generation of coating film creators can be reduced.
- B is contained, even if the content is reduced to 50 to less than 100 wt%, the generation of coating film creators can be reduced. Can be obtained. The reason for this is presumed to be due to the above-mentioned effect of B on improving the phosphatability, but the ability to reduce the Fe content in this way is considered to be f. If this can be done, the corrosion potential difference between the upper layer and the lower layer will be small, and the long-term shochu-eating properties of the entire plating layer can be improved.
- the B content in the upper layer is preferably 0.001 to 3 wt%. This means that if the B content is less than 0.001 wt%, the crater generation and its fluctuations in the electrodeposition coating are the same as those of the upper layer that does not contain B, and the B content is lower. Even if it exceeds 3 wt%, the effect is saturated and even if it is more than that, it has no meaning.
- the coating weight of the upper layer is 0.5 to 10 for B-containing Fe plating, and 0.2 to 89 I for Fe-based alloy plating.
- the lower layer cannot be completely covered, and only the coating layer crater due to the exposure of the lower layer during electrodeposition coating is generated.
- it exceeds 10 / m 2 or more the effect of suppressing the coating film creators is flattened out, and it is necessary to increase them more. It is from. Na us, saturation of the coating film click Les COMPUTER inhibitory effect of this is conventional has a containing B Fe - For Ki single Me Zn alloy layer, 1 0 9 / «force was Tsu Ah with iota 2, In this respect, too, the effect of reducing the amount of deposits due to the addition is recognized.
- the upper layer contains 0.001 to 3 wt% of by the electroplating method, it is necessary to use an Fe-Zn-based or Fe- ⁇ -based Fe
- an Fe-Zn-based or Fe- ⁇ -based Fe for example, boric acid, metaboric acid, water-soluble metaborate, water-soluble tetraborate, tetrafluoroborate, etc. It is only necessary to add one or more kinds of boron compounds and adjust the pH of the bath to 1-3.
- Ki one because of the calling Akira of this steel sheet, but was or Ki single Me lower GaJun Z n Ru Oh than even that to improve the electrodeposition coating of the steel sheet Ki single Me Z n-based alloy, the lower layer Zn-based alloy fixing force f
- Ni in contrast to Zn-Fe-based alloy
- Fe but Zn-Ni thread alloy
- Co Cr, Mil, Mo
- Ti etc.
- the plating was performed by an electric plating method, a vapor deposition method, a melting plating method, or the like.
- the alloyed zinc-plated steel sheet is also suppressed.
- Zn-! Alloyed into a base alloy It is also suppressed.
- a cold-rolled steel sheet with a thickness of 0.8 mm is subjected to normal degreasing and pickling treatments to clean the surface, and then purely electroplated under the conditions shown in Table 1 by the electroplating method.
- a lower layer of Zn or Zn—Fe alloy or Zn—N alloy is applied, and then Fe, Fe— The upper layer of B was provided.
- the sales plate of this invention which has Fe-B plating on the upper layer, has pure Zn plating or Zn-based alloy on the lower layer. Even in the case of plating, the number of generated creators and their fluctuations are smaller than in the conventional multi-layered head plate with Fe coating on the upper layer and good electrodeposition coating. Absent .
- the content of B was adjusted by a combination of the soda metaborate concentration and the pH.
- Fe plating without B was carried out without adding soda metaborate. Table 2
- the present invention 6 It 0.75 4 0 to 5
- Comparative Example 1 Zn 0 10 0 to 18 Comparative Example 2 II 0 24 to 25 Comparative Example 3 Zn-Ni 0 35 to 23 Comparative Example 4 n—Fe 0 11 15 to 28 Comparative Example 5 Zn-Ni 0.0004 .32 to 22 Comparative Example 6 Zn—Fe 0.003 0.1 63 to 205
- Example 2 After the surface of a cold-rolled mesh plate having a thickness of 0.8 ffl M was cleaned in the same manner as in Example 1, the Zn-Fe alloy or Zn- ⁇ was first used under the conditions shown in Table 3. The lower layer of ⁇ alloy is applied, and then the upper layer of high Fe-Zn alloy containing ⁇ or high Fe-ZII alloy containing no B did.
- Example 2 Thereafter, a sample was taken from the steel sheet to be subjected to the above-mentioned treatment, and then subjected to phosphoric acid 3 ⁇ 4; ni, electrodeposition coating in the same manner as in Example 1 to obtain a coated plate having a coating thickness of 23 m. did.
- Table 4 shows the number of coating film cre- ters generated when a B-containing high Fe-Zn alloy was applied to the upper layer.
- the upper layer does not contain B.
- the first vapor deposition method in which the electric resistance heating type vapor deposition Zii space is placed below the position of ⁇ ⁇ by passing through the seal chamber where the pressure is reduced step by step and guided to the cabin, and came one Me depositing a net ⁇ ⁇ to steel ⁇ surface. Subsequently, the steel is guided to a second vapor deposition chamber having a structure similar to that of the first vapor deposition chamber disposed below the first vapor deposition chamber, and is guided to the opposite surface.
- the upper layer is coated with a high Fe-Zn alloy containing no B.
- the coated steel sheet of the present invention has a good painted appearance even when used not only for a single vehicle member, but also for other members such as a member of a household electrical appliance to which electrodeposition coating is applied, a building member, and the like. Obtainable .
- the coating properties of paints other than electrodeposition paints are excellent, they can be used for general coating purposes.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Laminated Bodies (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019870700831A KR920009844B1 (ko) | 1986-03-29 | 1987-03-27 | 도장성이 우수한 도금강판(Plated steel sheet) |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61/71884 | 1986-03-29 | ||
| JP61071884A JPS62228498A (ja) | 1986-03-29 | 1986-03-29 | 塗装用めつき鋼板 |
| CA000539351A CA1309055C (en) | 1986-03-29 | 1987-06-10 | Plated steel sheet having excellent coating performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1987005950A1 true WO1987005950A1 (en) | 1987-10-08 |
Family
ID=25671379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1987/000190 WO1987005950A1 (en) | 1986-03-29 | 1987-03-27 | Plated steel excellent in coatability |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0264455B1 (enrdf_load_stackoverflow) |
| JP (1) | JPS62228498A (enrdf_load_stackoverflow) |
| KR (1) | KR920009844B1 (enrdf_load_stackoverflow) |
| AU (1) | AU589767B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1309055C (enrdf_load_stackoverflow) |
| DE (1) | DE3786056T2 (enrdf_load_stackoverflow) |
| WO (1) | WO1987005950A1 (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0610358B2 (ja) * | 1986-12-06 | 1994-02-09 | 日新製鋼株式会社 | 複層電気めつき鋼板 |
| DE3882769T2 (de) * | 1987-03-31 | 1993-11-11 | Nippon Steel Corp | Korrosionsbeständiges plattiertes Stahlband und Verfahren zu seiner Herstellung. |
| JPS6428351A (en) * | 1987-07-23 | 1989-01-30 | Nisshin Steel Co Ltd | Method for hot dip aluminizing hardly aluminizable steel sheet |
| KR910003036B1 (ko) * | 1988-12-30 | 1991-05-17 | 포항종합제철 주식회사 | 고내식성 철-망간계 이층도금강판 및 그 제조방법 |
| AT400040B (de) * | 1993-06-02 | 1995-09-25 | Andritz Patentverwaltung | Verfahren und vorrichtung zur beschichtung von metallsubstraten, insbesondere stahl- oder aluminiumbblechen in bandform |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56142885A (en) * | 1980-04-08 | 1981-11-07 | Nippon Steel Corp | Steel material with plural plating layers |
| JPS59116393A (ja) * | 1982-12-23 | 1984-07-05 | Kobe Steel Ltd | 塗装後の耐蝕性に優れた表面処理鋼板 |
-
1986
- 1986-03-29 JP JP61071884A patent/JPS62228498A/ja active Granted
-
1987
- 1987-03-27 DE DE87902156T patent/DE3786056T2/de not_active Expired - Fee Related
- 1987-03-27 KR KR1019870700831A patent/KR920009844B1/ko not_active Expired
- 1987-03-27 AU AU72080/87A patent/AU589767B2/en not_active Ceased
- 1987-03-27 WO PCT/JP1987/000190 patent/WO1987005950A1/ja active IP Right Grant
- 1987-03-27 EP EP87902156A patent/EP0264455B1/en not_active Expired - Lifetime
- 1987-06-10 CA CA000539351A patent/CA1309055C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56142885A (en) * | 1980-04-08 | 1981-11-07 | Nippon Steel Corp | Steel material with plural plating layers |
| JPS59116393A (ja) * | 1982-12-23 | 1984-07-05 | Kobe Steel Ltd | 塗装後の耐蝕性に優れた表面処理鋼板 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1309055C (en) | 1992-10-20 |
| KR880700868A (ko) | 1988-04-13 |
| JPH0156159B2 (enrdf_load_stackoverflow) | 1989-11-29 |
| EP0264455B1 (en) | 1993-06-02 |
| AU7208087A (en) | 1987-10-20 |
| EP0264455A4 (en) | 1991-03-13 |
| AU589767B2 (en) | 1989-10-19 |
| DE3786056T2 (de) | 1993-10-28 |
| JPS62228498A (ja) | 1987-10-07 |
| DE3786056D1 (de) | 1993-07-08 |
| KR920009844B1 (ko) | 1992-10-31 |
| EP0264455A1 (en) | 1988-04-27 |
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