JPS62228498A - Plated steel sheet for painting - Google Patents
Plated steel sheet for paintingInfo
- Publication number
- JPS62228498A JPS62228498A JP61071884A JP7188486A JPS62228498A JP S62228498 A JPS62228498 A JP S62228498A JP 61071884 A JP61071884 A JP 61071884A JP 7188486 A JP7188486 A JP 7188486A JP S62228498 A JPS62228498 A JP S62228498A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- plating
- alloy
- plated steel
- plated
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 238000010422 painting Methods 0.000 title claims abstract description 9
- 238000007747 plating Methods 0.000 claims abstract description 40
- 229910001297 Zn alloy Inorganic materials 0.000 claims abstract description 18
- 229910052796 boron Inorganic materials 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 16
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- 101000993059 Homo sapiens Hereditary hemochromatosis protein Proteins 0.000 claims description 2
- 239000003973 paint Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 29
- 239000011248 coating agent Substances 0.000 description 17
- 238000000576 coating method Methods 0.000 description 17
- 238000004070 electrodeposition Methods 0.000 description 11
- 229910019142 PO4 Inorganic materials 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 6
- 239000010452 phosphate Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 125000002091 cationic group Chemical group 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910007567 Zn-Ni Inorganic materials 0.000 description 3
- 229910007614 Zn—Ni Inorganic materials 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 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
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000015572 biosynthetic process 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
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002659 electrodeposit Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- VGTPKLINSHNZRD-UHFFFAOYSA-N oxoborinic acid Chemical compound OB=O VGTPKLINSHNZRD-UHFFFAOYSA-N 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 230000000007 visual effect Effects 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
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
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は自動車車体のごとく、構成部材に例えばカチオ
ン電着塗装などの塗装を施す用途に使用した場合に？！
！Ｆ、装仕上り性の優れためっき鋼板に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) When the present invention is used for applying a coating such as cationic electrodeposition coating to a structural member such as an automobile body? !
! F. Relating to a plated steel sheet with excellent finishing properties.
（従来技術）
北米、カナダ、北欧など冬季に凍結防止のため道路に岩
塩を散布するので、自動車車体の部材に使用する＠ｉ板
には優れｔこ防食性能が受木されている。このためこの
ような用途には最近耐食性の優れたＺｎ−Ｆｅ系合金や
Ｚｎ一層系合金などのＺｎ系合金を単層めっきしたＺｎ
系合金めっき鋼板が使用されるようになってきた。(Prior art) Rock salt is sprayed on roads in North America, Canada, and Northern Europe to prevent freezing in the winter, so boards used for automobile body parts have excellent anti-corrosion properties. Therefore, for such applications, Zn-based alloys such as Zn-Fe alloys and Zn single-layer alloys, which have excellent corrosion resistance, are recently plated with a single layer.
alloy-plated steel sheets have come into use.
しかしこれらのＺｎ系合金めっき鋼板は単層めっきであ
ると、リン酸塩処理後カチオン電着塗装を施した場合に
塗膜にクレータが発生してしまい、塗装仕上り性が劣る
という問題があった。However, when these Zn-based alloy coated steel sheets are single-layer plated, craters occur in the coating film when cationic electrodeposition is applied after phosphate treatment, resulting in poor coating finish. .
そこでこのような塗装仕上り性の問題を改善しためっき
鋼板として、上記のような合金めっきの上にさらに電着
塗装性のよいＦｅ含有率が６０〜１００ｗｔ％未満の高
Ｆｅ−Ｚｎ合金めっきを施した複層めっき鋼板が提案さ
れている。確かにｗ４板のめっき層をこの上うな複層め
っきにすれば、単Ｊ〆めっきに比ベカチオン電着塗装に
よる塗膜のクレータ発生は減少し、塗装仕上り性が改善
される。Therefore, as a plated steel sheet that improves the problem of paint finish, high Fe-Zn alloy plating with an Fe content of 60 to less than 100 wt%, which has good electrodeposition coating property, is applied on top of the above alloy plating. A multilayer plated steel sheet has been proposed. It is true that if the plating layer of the W4 board is made of a multi-layer plating, the occurrence of craters in the paint film due to cationic electrodeposition coating will be reduced compared to single J finish plating, and the coating finish will be improved.
しかしながら従来の複層めっき鋼板は高Ｆｃ −Ｚｎ合
金めっきにより塗膜クレータの発生を減少させるのにめ
っき付着量を片面当り５９７ｍ２以上にしなければなら
ないため、製造コストが高くなるという問題があった。However, in order to reduce the occurrence of paint film craters by high Fc-Zn alloy plating, the conventional multilayer plated steel sheet has the problem of high manufacturing cost because the amount of plating must be 597 m2 or more per side.
（発明が解決しようとする問題点）
本発明はＺｎ系合金めっきの上にさらに高Ｆｅ−Ｚｎ合
金めっきを施した複層めっき鋼板において、製造コスト
の安価な塗装用めっき鋼板を提供するものである。(Problems to be Solved by the Invention) The present invention provides a multi-layer plated steel plate in which high-Fe-Zn alloy plating is applied on top of Zn-based alloy plating, and is a coated steel plate for painting that is inexpensive to manufacture. be.
（問題、弘を解決するための手段）
本発明者らはＺｎ系合金めっきおよび高Ｆｅ−Ｚｎ合金
めっきをそれぞれ下層および上層とする安価な複層めっ
き鋼板を開発すべく、種々検討を行った結果、上層にＢ
（ホウ素）を含有させれば、上層のめっき厚さを薄くす
ることができ、しがも上層のＦｅ含有率を低減できるこ
とを見出した。すなわち本発明は従来の上層の高Ｆｅ−
Ｚｎ合金めっきにＢを添加すること１こより上層の薄め
つき化、塗装性の向上およびＦｅ含有率低減による上層
と下層との腐食電位差減少化を図ったもので、下層にＺ
ｎ系合金のめっトを施し、上層にＢをＯ，００１ｗｔ％
以上含有し、Ｆｅ含有率が５Ｏ−１００ｕ＋ｔ％未満で
ある高Ｆｅ−７１１合金めっきを施したことを！徴とし
ている。(Means for solving the problem) The present inventors conducted various studies in order to develop an inexpensive multi-layer plated steel sheet with Zn-based alloy plating and high Fe-Zn alloy plating as the lower and upper layers, respectively. As a result, B in the upper layer
It has been found that by containing (boron), the plating thickness of the upper layer can be reduced, and the Fe content of the upper layer can also be reduced. In other words, the present invention has a high Fe-
By adding B to the Zn alloy plating, it is possible to thin the upper layer, improve paintability, and reduce the corrosion potential difference between the upper layer and the lower layer by reducing the Fe content.
Plated with n-based alloy, with O,001wt% B on the upper layer.
High Fe-711 alloy plating containing the above and having an Fe content of less than 5O-100u+t%! It is a sign.
本発明のめっき鋼板は従来の複層めっき鋼板が上層の高
Ｆｅ−Ｚｎ合金めっき付着量を５９７Ｉ１１’以上にし
なければ塗膜クレータ発生を減少させることができなか
ったのに対して、０．２９７＋ａ２と極めで少なくして
も塗膜クレータ発生を従来の複層めっき鋼板より減少さ
せることができる。この理由は明らかではないが、上層
を電気めっきする際めっ８浴にＢが添加されていると、
めっきの均一電着性が改善され、また上層にＢが含有さ
れていると、電着塗装前処理であるリン酸塩処理でＢが
リン酸塩処理性を向上させる結果、緻密なリン酸塩皮膜
が形成され、鋼板表面全体の通電性が均一になり、電着
塗装の際塗料が均一に電着し、クレータの発生が抑制さ
れるためであると推定される。The plated steel sheet of the present invention cannot reduce the occurrence of paint film craters unless the coating weight of the upper layer of high Fe-Zn alloy is 597I11' or more in the case of conventional multilayer plated steel sheets. Even if it is extremely small, the occurrence of paint film craters can be reduced compared to conventional multilayer plated steel sheets. The reason for this is not clear, but if B is added to the plating bath when electroplating the upper layer,
The uniform electrodeposition of the plating is improved, and when B is contained in the upper layer, B improves the phosphate treatment in the phosphate treatment, which is a pretreatment for electrodeposition coating, resulting in dense phosphate formation. It is presumed that this is because a film is formed, which makes the electrical conductivity uniform over the entire surface of the steel plate, and the paint is uniformly electrodeposited during electrodeposition coating, thereby suppressing the generation of craters.
また上層の高Ｆｅ−Ｚｎ合金めっきのＦｅ含有率は従来
の６０〜１００ｗｊ％未満にしないと、クレータ発生を
減少させることができなかったが、Ｂ添加により５０〜
１００ｗｔ％未満と低減させても、りに−タ発生を減少
させることができる。この理由は前述のＢによるリン酸
塩処理性の改善効果によるものと推定されるが、Ｆｅ含
有率をこのように低減させることができると、上層と下
層との腐食電位差が小さくなり、めっき層全体の長期耐
食性を向上させることがで島る。In addition, the Fe content of the upper layer high Fe-Zn alloy plating had to be lower than the conventional 60 to 100 wj% to reduce the occurrence of craters, but with the addition of B, it could be reduced to 50 to 100 wj%.
Even if the content is reduced to less than 100 wt%, the generation of nitrate can be reduced. The reason for this is presumed to be the above-mentioned effect of B on improving the phosphate treatment properties, but if the Fe content can be reduced in this way, the difference in corrosion potential between the upper layer and the lower layer becomes smaller, and the plating layer It is possible to improve the overall long-term corrosion resistance.
ところで上層の高Ｆｅ−Ｚｎめっき中に含有させるＢ＋
ｉは０．００１〜３ｗｔ％にするのが好ましい。これは
Ｂ量が０，００１ｗｔ％未満であると、電着塗装でのク
レータ発生がＢを含有しない高Ｆｅ、−Ｚｎめっきの場
合と変わらず、Ｂｌが３１１ＩＬ％を越えてもその効果
は飽和し、３ｗｔ％より多くしても意味がないからであ
る。By the way, B+ contained in the upper layer high Fe-Zn plating
It is preferable that i is 0.001 to 3 wt%. This is because when the B content is less than 0,001wt%, crater generation during electrodeposition coating is the same as in the case of high Fe, -Zn plating that does not contain B, and even when Bl exceeds 311IL%, the effect is saturated. However, there is no meaning in increasing the content more than 3 wt%.
Ｂを上層の高Ｆｅ−Ｚｎめっき中に０．００１−３ ｗ
ｔ、％含有させるには通常のＦｃ−Ｚｎ合金めっき俗に
ホウ酸、メタホウ酸、可溶性メタホウ酸塩、可溶性４ホ
ウ酸塩、テトラフルオロホ・り酸塩などのようなホウ素
化合物を１種または２種以上添加して、浴のｐｉを１．
５〜３，０に調整してめっきすればよい。B in the upper layer high Fe-Zn plating at 0.001-3 w
In order to contain t,%, one or more boron compounds such as boric acid, metaboric acid, soluble metaborate, soluble tetraborate, tetrafluorophorate, etc. are generally used for Fc-Zn alloy plating. Add two or more types to increase the pi of the bath to 1.
Plating may be performed by adjusting the thickness to 5 to 3.0.
また上層のめっき付着量は０．２〜８９／ｍ２にするの
が好ましい、これはＱ、２９／、２未満であると下層の
Ｚｎ系合金めっトを完全に被１することができず、下層
の露出に起因したクレータの発生がみられ、８９７Ｉ１
１２を越えるとクレータの抑制効果が飽和してしまって
、８９７ｍ”より多くする必要がないからである。なお
このクレータ抑制効果の飽和は従来の高Ｆｅ−Ｚｎ合金
めっきの場合１０９／ｍ２″ｃｈ、この点で６Ｂ添加に
よるめっき付着１低減効果が認められる。In addition, it is preferable that the coating weight of the upper layer is 0.2 to 89/m2; if it is less than 29/m2, it will not be possible to completely cover the lower layer Zn-based alloy plating. , the occurrence of craters due to the exposure of the lower layer was observed, 897I1
This is because if it exceeds 12, the crater suppression effect will be saturated, so there is no need to increase the crater suppression effect beyond 897 m2.The saturation of this crater suppression effect is 109/m2''ch in the case of conventional high Fe-Zn alloy plating. In this respect, the effect of reducing plating adhesion 1 by adding 6B is recognized.
本発明は下層がＺｎ系合金めっきであるめっト爛板の製
造コストおよび品質を改善するものであるが、下層のＺ
ｎ系合金めっきがＺｎ−Ｎｉ系またはＺｎ −Ｆｅ系合
金の場合旧（但しＺｎ−Ｆｅ系合金に対して）、Ｆｅ（
但しＺｎ−Ｎｉ系合金に対して）、Ｃｏ、 Ｃｒ、 Ｎ
ｏ、Ｎ。The present invention improves the manufacturing cost and quality of plated plate whose lower layer is Zn-based alloy plating.
If the n-based alloy plating is Zn-Ni or Zn-Fe-based alloy,
However, for Zn-Ni alloy), Co, Cr, N
o, N.
およびＩ′ｉなどの元素の１種または２種以上を微量含
むものであっても改善可能である。またＺｎ系合金は電
気めっき法、蒸着めっき法または溶融めっき法などによ
り鋼板に直接合金めっきしたものて′あっても、めっき
後熱拡散により合金化させたものでも改善は可能である
。It can be improved even if it contains trace amounts of one or more of the elements such as and I'i. In addition, improvements can be made with Zn-based alloys, even if they are directly plated on a steel plate by electroplating, vapor deposition plating, or hot-dip plating, or alloyed by thermal diffusion after plating.
次に実施例により本発明を説明する。Next, the present invention will be explained with reference to examples.
（実施例）
板厚０．８ｍｍの冷延鋼板に通常の脱詣および酸洗処理
を施して、表面を清浄にした後、第１表に示す条件でま
ずＺｎ−ＮｉまたはＺｎ−Ｆｅ合金の下層めっきを施し
、次にその上にＢ含有高Ｆｅ−Ｚｎ合金の上層めっきを
施した。(Example) A cold-rolled steel plate with a thickness of 0.8 mm was subjected to normal stripping and pickling treatment to clean the surface, and then Zn-Ni or Zn-Fe alloy was first treated under the conditions shown in Table 1. A lower layer plating was applied, and then an upper layer plating of a B-containing high Fe-Zn alloy was applied thereon.
その後このようにしてめっきしためっき鋼板と従来の上
／１Ｆｅ−Ｚｎ合金めっきの複層めっき鋼板とを市販の
リン酸塩処理液（Ｂｔ３０３０、日本パーカー製）で処
理した後、カチオン電着塗装を施し、焼付乾燥後塗膜に
発生したクレータ数を調査した。なお電着塗装の際は塗
料としてはニレクロン＃９０００（関西ペイント製）を
使用しで、ドカン法により３００■で塗ａ厚み２３μｍ
に電着し、焼付乾燥は１８０℃で２０分間行つな。第２
表に電着塗装塗膜の単位面積当りのクレータ発生数を目
視観察により判定した結果を示す。Thereafter, the plated steel sheet plated in this manner and the conventional multilayer plated steel sheet with top/1 Fe-Zn alloy plating were treated with a commercially available phosphate treatment solution (Bt3030, manufactured by Nippon Parker), and then cationic electrodeposition coating was applied. The number of craters generated on the coating film after baking and drying was investigated. When performing electrodeposition coating, use Nireclone #9000 (manufactured by Kansai Paint) as the paint, and use the dokan method to apply 300cm to a thickness of 23μm.
Electrodeposit and bake dry at 180°C for 20 minutes. Second
The table shows the results of visual observation of the number of craters generated per unit area of the electrodeposition coating film.
第２表より明らかなように上層にＢ含有高Ｆｅ −Ｚｎ
合金めっきを施した本発明のめっき鋼板は上層のめっき
付着量やＦｅ含有率が従来の複層めっき鋼板よＹ）少な
くでもクレータの発生数が格段に少なり１ 。As is clear from Table 2, the upper layer contains high Fe-Zn B content.
The coated steel sheet of the present invention, which has been subjected to alloy plating, has a significantly lower coating weight and Fe content in the upper layer than conventional multilayer plated steel sheets, but at least the number of craters is significantly lower1.
（効果）
以上のごとく本発明のめっき鋼板は従来のものより塗装
性に優れているので、自動４１１１１体の部材などのご
とく塗装を施す用途に使用した場合塗装仕上り性を向上
させることができる。(Effects) As described above, the plated steel sheet of the present invention has better paintability than conventional ones, so when used for applications such as parts of automatic 41111 bodies, it is possible to improve the paint finish.
Claims (3)
素）を０．００１ｗｔ％以上含有し、Ｆｅ含有率が５０
〜１００ｗｔ％未満である高Ｆｅ−Ｚｎ合金めっきを施
したことを特徴とする塗装用めっき鋼板。(1) The lower layer is plated with a Zn-based alloy, the upper layer contains B (boron) at 0.001 wt% or more, and the Fe content is 50%.
A plated steel sheet for painting, characterized in that it is coated with a high Fe-Zn alloy plating of less than ~100 wt%.
−Ｚｎ合金めっきを施したことを特徴とする特許請求の
範囲第１項に記載の塗装用めっき鋼板。(2) High Fe containing 0.001 to 3 wt% of B in the upper layer
- The plated steel sheet for painting according to claim 1, which is coated with Zn alloy plating.
＾２にしたことを特徴とする特許請求の範囲第１項また
は第２項に記載の塗装用めっき鋼板。(3) The amount of plating deposited on the upper layer is 0.2 to 8 g/m per side.
The plated steel sheet for painting according to claim 1 or 2, characterized in that the plated steel sheet has a shape of ^2.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61071884A JPS62228498A (en) | 1986-03-29 | 1986-03-29 | Plated steel sheet for painting |
| US07/123,111 US4835066A (en) | 1986-01-25 | 1987-03-27 | Plated steel sheet having excellent coating performance |
| AU72080/87A AU589767B2 (en) | 1986-03-29 | 1987-03-27 | Plated steel sheet |
| DE87902156T DE3786056T2 (en) | 1986-03-29 | 1987-03-27 | COATED STEEL WITH EXCELLENT COATABILITY. |
| KR1019870700831A KR920009844B1 (en) | 1986-03-29 | 1987-03-27 | Plated steel sheet having excellent coating performance |
| EP87902156A EP0264455B1 (en) | 1986-03-29 | 1987-03-27 | Plated steel excellent in coatability |
| PCT/JP1987/000190 WO1987005950A1 (en) | 1986-03-29 | 1987-03-27 | Plated steel excellent in coatability |
| CA000539351A CA1309055C (en) | 1986-03-29 | 1987-06-10 | Plated steel sheet having excellent coating performance |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61071884A JPS62228498A (en) | 1986-03-29 | 1986-03-29 | Plated steel sheet for painting |
| CA000539351A CA1309055C (en) | 1986-03-29 | 1987-06-10 | Plated steel sheet having excellent coating performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62228498A true JPS62228498A (en) | 1987-10-07 |
| JPH0156159B2 JPH0156159B2 (en) | 1989-11-29 |
Family
ID=25671379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61071884A Granted JPS62228498A (en) | 1986-01-25 | 1986-03-29 | Plated steel sheet for painting |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0264455B1 (en) |
| JP (1) | JPS62228498A (en) |
| KR (1) | KR920009844B1 (en) |
| AU (1) | AU589767B2 (en) |
| CA (1) | CA1309055C (en) |
| DE (1) | DE3786056T2 (en) |
| WO (1) | WO1987005950A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0610358B2 (en) * | 1986-12-06 | 1994-02-09 | 日新製鋼株式会社 | Multi-layer electric plated steel sheet |
| DE3882769T2 (en) * | 1987-03-31 | 1993-11-11 | Nippon Steel Corp | Corrosion-resistant plated steel strip and process for its manufacture. |
| JPS6428351A (en) * | 1987-07-23 | 1989-01-30 | Nisshin Steel Co Ltd | Method for hot dip aluminizing hardly aluminizable steel sheet |
| KR910003036B1 (en) * | 1988-12-30 | 1991-05-17 | 포항종합제철 주식회사 | Corrosion excellant resistance fe-mn coating steel sheets and process for making |
| AT400040B (en) * | 1993-06-02 | 1995-09-25 | Andritz Patentverwaltung | METHOD AND DEVICE FOR COATING METAL SUBSTRATES, IN PARTICULAR STEEL OR ALUMINUM SHEETS IN STRIP SHAPE |
Family Cites Families (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 (en) * | 1982-12-23 | 1984-07-05 | Kobe Steel Ltd | Surface-treated steel sheet with superior corrosion resistance after coating |
-
1986
- 1986-03-29 JP JP61071884A patent/JPS62228498A/en active Granted
-
1987
- 1987-03-27 WO PCT/JP1987/000190 patent/WO1987005950A1/en active IP Right Grant
- 1987-03-27 AU AU72080/87A patent/AU589767B2/en not_active Ceased
- 1987-03-27 DE DE87902156T patent/DE3786056T2/en not_active Expired - Fee Related
- 1987-03-27 EP EP87902156A patent/EP0264455B1/en not_active Expired - Lifetime
- 1987-03-27 KR KR1019870700831A patent/KR920009844B1/en not_active IP Right Cessation
- 1987-06-10 CA CA000539351A patent/CA1309055C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA1309055C (en) | 1992-10-20 |
| KR920009844B1 (en) | 1992-10-31 |
| EP0264455A1 (en) | 1988-04-27 |
| EP0264455B1 (en) | 1993-06-02 |
| DE3786056T2 (en) | 1993-10-28 |
| WO1987005950A1 (en) | 1987-10-08 |
| AU589767B2 (en) | 1989-10-19 |
| EP0264455A4 (en) | 1991-03-13 |
| DE3786056D1 (en) | 1993-07-08 |
| JPH0156159B2 (en) | 1989-11-29 |
| KR880700868A (en) | 1988-04-13 |
| AU7208087A (en) | 1987-10-20 |
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