WO1987005950A1 - Acier plaque presentant une excellente aptitude au revetement - Google Patents

Acier plaque presentant une excellente aptitude au revetement Download PDF

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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
Application number
PCT/JP1987/000190
Other languages
English (en)
Japanese (ja)
Inventor
Taisuke Irie
Junichi Kotegawa
Koichi Watanabe
Satoshi Hukuda
Original Assignee
Nisshin Steel Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nisshin Steel Co., Ltd. filed Critical Nisshin Steel Co., Ltd.
Priority to KR1019870700831A priority Critical patent/KR920009844B1/ko
Publication of WO1987005950A1 publication Critical patent/WO1987005950A1/fr

Links

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)

Abstract

Acier plaqué présentant une excellente aptitude au revêtement produit en formant, à la surface d'un acier plaqué avec du Zn pur ou un alliage de Zn, une couche de plaquage en Fe contenant du bore ou avec un alliage de Fe-Zn contenant du bore (présentant une teneur en Fe égale ou supérieure à 50% en poids). La couche de plaquage en Fe ou en alliage de Fe-Zn contenant du bore permet d'empêcher de manière durable la formation de cratères dans des revêtement tels que des revêtements électrolytiques. L'acier ainsi plaqué peut être utilisé dans des carrosseries de véhicules automobiles à la place d'un acier présentant une couche de revêtement composée de Zn pur monocouche ou d'un alliage de Zn (par exemple un alliage de Zn-Fe, un alliage de Zn-Ni, etc) dans laquelle des cratères se sont formés pendant le dépôt électrolytique. La teneur en bore de la couche de revêtement en Fe ou en alliage de Fe-Zn est comprise de préférence entre 0,001 et 3% en poids, et la quantité de plaquage varie de préférence entre 0,5 et 10 g/m2 (de chaque côté) dans le cas du revêtement en Fe et entre 0,2 et 8 g/m2 (de chaque côté) dans le cas d'un alliage de Fe-Zn.
PCT/JP1987/000190 1986-03-29 1987-03-27 Acier plaque presentant une excellente aptitude au revetement WO1987005950A1 (fr)

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 (fr) 1986-03-29 1987-06-10 Tole en acier plaque, d'excellente qualite pour les revetements

Publications (1)

Publication Number Publication Date
WO1987005950A1 true WO1987005950A1 (fr) 1987-10-08

Family

ID=25671379

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1987/000190 WO1987005950A1 (fr) 1986-03-29 1987-03-27 Acier plaque presentant une excellente aptitude au revetement

Country Status (7)

Country Link
EP (1) EP0264455B1 (fr)
JP (1) JPS62228498A (fr)
KR (1) KR920009844B1 (fr)
AU (1) AU589767B2 (fr)
CA (1) CA1309055C (fr)
DE (1) DE3786056T2 (fr)
WO (1) WO1987005950A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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
EP0285931B1 (fr) * 1987-03-31 1993-08-04 Nippon Steel Corporation Bande d'acier résistant à la corrosion et procédé de fabrication
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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
JPH0156159B2 (fr) 1989-11-29
DE3786056T2 (de) 1993-10-28
DE3786056D1 (de) 1993-07-08
EP0264455A4 (en) 1991-03-13
AU7208087A (en) 1987-10-20
KR880700868A (ko) 1988-04-13
EP0264455A1 (fr) 1988-04-27
AU589767B2 (en) 1989-10-19
EP0264455B1 (fr) 1993-06-02
CA1309055C (fr) 1992-10-20
JPS62228498A (ja) 1987-10-07
KR920009844B1 (ko) 1992-10-31

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