JPH04274891A - Manufacture of zinc-aluminium two layer surface treated steel sheet - Google Patents
Manufacture of zinc-aluminium two layer surface treated steel sheetInfo
- Publication number
- JPH04274891A JPH04274891A JP3402091A JP3402091A JPH04274891A JP H04274891 A JPH04274891 A JP H04274891A JP 3402091 A JP3402091 A JP 3402091A JP 3402091 A JP3402091 A JP 3402091A JP H04274891 A JPH04274891 A JP H04274891A
- Authority
- JP
- Japan
- Prior art keywords
- zinc
- steel sheet
- aluminum
- aluminium
- film
- 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.)
- Withdrawn
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 37
- 239000010959 steel Substances 0.000 title claims abstract description 37
- 229910000611 Zinc aluminium Inorganic materials 0.000 title claims abstract description 16
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 22
- 239000011701 zinc Substances 0.000 claims abstract description 19
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 17
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 230000005496 eutectics Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 12
- 238000005260 corrosion Methods 0.000 abstract description 12
- 238000005304 joining Methods 0.000 abstract description 6
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 239000004411 aluminium Substances 0.000 abstract 2
- 238000007747 plating Methods 0.000 description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 description 7
- 239000008397 galvanized steel Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229910000680 Aluminized steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は耐食性に優れる表面処理
鋼板の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a surface-treated steel sheet having excellent corrosion resistance.
【０００２】0002
【従来の技術】表面処理鋼板に対する耐食性向上ニーズ
は近年ますます高度化し、それに応じて亜鉛系、亜鉛−
アルミ系、アルミ系の様々な表面処理鋼板が開発されて
いる。その中において、上層アルミ−下層亜鉛の２層表
面処理鋼板は、上層アルミめっきの安定な酸化皮膜形成
作用と下層の亜鉛めっきの犠牲防食作用が相乗効果とな
って優れた耐食性を発揮する鋼板であり、主として高度
の耐食性が要求される建材用途の表面処理鋼板として用
途拡大が期待されている。[Prior art] The need for improving the corrosion resistance of surface-treated steel sheets has become increasingly sophisticated in recent years, and zinc-based and zinc-based
Various aluminum-based and aluminum-based surface-treated steel sheets have been developed. Among these, the double-layer surface-treated steel sheet of upper layer aluminum and lower layer zinc is a steel sheet that exhibits excellent corrosion resistance due to the synergistic effect of the stable oxide film formation effect of the upper layer aluminum plating and the sacrificial anticorrosion effect of the lower layer zinc plating. It is expected that its use will expand mainly as surface-treated steel sheets for building materials that require a high degree of corrosion resistance.
【０００３】この鋼板を製造する技術として亜鉛めっき
鋼板の表面にアルミフィルムをロール等を用いることに
より機械的に接合する方法が既に実施されているが、固
層接合では十分な密着力が得られないため加工の厳しい
用途ではアルミフィルムがはがれやすい欠点があった。[0003] As a technique for manufacturing this steel sheet, a method has already been implemented in which an aluminum film is mechanically bonded to the surface of a galvanized steel sheet using a roll or the like, but solid bonding does not provide sufficient adhesion. Because of this, the aluminum film had the disadvantage of being easily peeled off in applications that required severe processing.
【０００４】また別の方法として、接着剤や粘着剤を用
いて接合する方法が実施されているがこの場合密着性は
良好なものが得られるものの、耐熱性を必要とされる用
途に使用すると有機化合物である接着剤、粘着剤が熱省
化し、長時間の使用によりアルミフィルムがはがれやす
い欠点があった。[0004] As another method, bonding using adhesive or pressure-sensitive adhesive has been carried out, but although good adhesion can be obtained in this case, it is difficult to use it for applications that require heat resistance. Adhesives and pressure-sensitive adhesives, which are organic compounds, require less heat, and the aluminum film tends to peel off after long-term use.
【０００５】更には、上記の問題点を解決する方法とし
て特開昭６１−２５３３８２にて鋼板表面に真空中で亜
鉛を蒸着めっきした後、同じくアルミを蒸着めっきする
方法が実施されてるが、上層アルミめっき層の皮膜欠陥
を無くすことが困難なことと、製造コストが高いなどの
問題点があった。[0005] Furthermore, as a method to solve the above-mentioned problems, Japanese Patent Laid-Open No. 61-253382 discloses a method in which zinc is vapor-deposited on the surface of a steel sheet in a vacuum, and then aluminum is similarly vapor-deposited. There were problems such as difficulty in eliminating film defects in the aluminum plating layer and high manufacturing costs.
【０００６】[0006]
【課題を解決するための手段】本発明は、耐食性に優れ
る表面処理鋼板の製造方法を提供するものであり、その
構成を以下に示す。[Means for Solving the Problems] The present invention provides a method for manufacturing a surface-treated steel sheet with excellent corrosion resistance, and the structure thereof is shown below.
【０００７】亜鉛系めっき鋼板の少なくとも片面に、予
め接合面側に亜鉛もしくは亜鉛系合金めっきを施したア
ルミもしくはアルミ系合金フィルムを接合した後、亜鉛
−アルミの共晶温度以上に加熱することを特徴とする亜
鉛−アルミ二層表面処理鋼板の製造方法。[0007] After joining aluminum or aluminum alloy film, which has been previously plated with zinc or zinc alloy on the joint surface side, to at least one side of the zinc-plated steel sheet, heating is performed to a temperature higher than the eutectic temperature of zinc-aluminum. A method for producing a featured zinc-aluminum double-layer surface-treated steel sheet.
【０００８】[0008]
【作用】亜鉛系めっき鋼板として亜鉛もしくは亜鉛を含
む全ての合金めっき鋼板を適用できるが、例えば、電気
亜鉛めっき鋼板、電気亜鉛−ニッケルめっき鋼板、電気
亜鉛−鉄めっき鋼板、溶融亜鉛めっき鋼板、溶融亜鉛−
アルミめっき鋼板、合金化溶融亜鉛めっき鋼板、蒸着亜
鉛めっき鋼板、蒸着亜鉛−アルミめっき鋼板などがある
。[Action] Zinc or any alloy-plated steel sheet containing zinc can be used as the zinc-based plated steel sheet, such as electrogalvanized steel sheet, electrolytic zinc-nickel plated steel sheet, electrolytic zinc-iron plated steel sheet, hot-dip galvanized steel sheet, hot-dip galvanized steel sheet, etc. Zinc-
These include aluminized steel sheets, alloyed hot-dip galvanized steel sheets, vapor-deposited galvanized steel sheets, and vapor-deposited zinc-aluminum-plated steel sheets.
【０００９】アルミもしくはアルミ系合金フィルムに予
めＺｎもしくはＺｎ系合金めっきを施することによりめ
っき表面とフィルムの表面の密着性が向上する。めっき
付着量は特に限定されないが通常は０．５ｇ／ｍ２ 〜
５．０ｇ／ｍ２ の範囲が好ましい。また、めっき皮膜
を形成する方法として電気めっきもしくは化学めっき等
を用いることができる。[0009] By plating aluminum or an aluminum alloy film with Zn or a Zn alloy in advance, the adhesion between the plated surface and the surface of the film is improved. The amount of plating deposited is not particularly limited, but is usually 0.5 g/m2 ~
A range of 5.0 g/m2 is preferred. Furthermore, electroplating, chemical plating, or the like can be used as a method for forming the plating film.
【００１０】アルミまたはアルミ系合金フィルム特に限
定されないが、通常は５μｍ〜１００μｍを用いる。ア
ルミ系合金の組成としては、フィルムの密着性向上や耐
食性を向上させるものとして、Ｚｎ、Ｍｇ、Ｍｎ、Ｓｉ
、Ｃｕ、Ｃｒ、Ｎｉ、Ｆｅ、Ｔｉ、Ｓｎ、Ｐｂの内一種
または二種以上を含む合金系が適用できる。Aluminum or aluminum alloy film is not particularly limited, but usually has a thickness of 5 μm to 100 μm. The composition of aluminum-based alloys includes Zn, Mg, Mn, and Si to improve film adhesion and corrosion resistance.
, Cu, Cr, Ni, Fe, Ti, Sn, and Pb, an alloy system containing one or more of them can be used.
【００１１】アルミまたはアルミ系合金フィルムの鋼板
表面への接合方法としてロール圧着法を用いる。また、
気体吹き付けによる貼り付け法を用いることができる。[0011] A roll pressure bonding method is used as a method for joining an aluminum or aluminum-based alloy film to the surface of a steel plate. Also,
A pasting method using gas spraying can be used.
【００１２】フィルムを接合した後、亜鉛−アルミの共
晶温度以上に加熱することによりめっき表面とフィルム
の密着力が向上する。加熱方法として、赤外線加熱、誘
導加熱、通電加熱、レーザー照射加熱、直火バーナー加
熱、熱風吹き付け加熱他を利用することができる。加熱
温度は亜鉛とアルミの共晶温度である３８２℃以上で行
なう。温度は共晶温度以上であれば特に限定されないが
、通常は４００℃〜５００℃で処理時間１〜１０秒の範
囲で行なうことが好ましい。[0012] After the films are bonded, the adhesion between the plated surface and the film is improved by heating the film to a temperature higher than the eutectic temperature of zinc-aluminum. As a heating method, infrared heating, induction heating, electrical heating, laser irradiation heating, direct burner heating, hot air blowing heating, etc. can be used. The heating temperature is 382° C. or higher, which is the eutectic temperature of zinc and aluminum. The temperature is not particularly limited as long as it is higher than the eutectic temperature, but it is usually preferred to carry out the treatment at 400°C to 500°C for a treatment time of 1 to 10 seconds.
【００１３】また、加熱処理を施した後、スキンパスロ
ールにて圧延することにより、フィルムの密着性及び外
観を更に向上させることができる。[0013] Furthermore, by rolling the film with a skin pass roll after the heat treatment, the adhesion and appearance of the film can be further improved.
【００１４】本発明に基づく亜鉛−アルミ二層表面処理
は片面側のみに適用してもよいし、両面側に適用しても
よい。例えば、両面側に亜鉛−アルミ二層表面処理を施
した鋼板、片面に亜鉛−アルミ二層表面処理し反対面側
に亜鉛めっきした鋼板、あるいは片面に亜鉛−アルミ二
層表面処理し反対面側は鉄面の鋼板他、表面処理鋼板の
使用用途に応じた適用を行なう。The zinc-aluminum double layer surface treatment according to the present invention may be applied to only one side or both sides. For example, a steel sheet with double-layered zinc-aluminum surface treatment on both sides, a steel sheet with double-layered zinc-aluminum surface treatment on one side and galvanization on the other side, or a steel sheet with double-layered zinc-aluminum surface treatment on one side and the other side. In addition to iron-faced steel plates, surface-treated steel plates are applied depending on the intended use.
【００１５】[0015]
【実施例】次に、実施例を挙げて本発明を説明する。各
種亜鉛系めっき鋼板予め接合面側に亜鉛もしくは亜鉛系
合金めっきを施した厚み２０μｍのアルミもしくはアル
ミ系合金フィルムをロール圧着にて接合した後、亜鉛−
アルミの共晶温度である３８２℃以上に通電加熱にて加
熱し亜鉛−アルミ二層表面処理鋼板を製造した。[Examples] Next, the present invention will be explained with reference to Examples. Various zinc-plated steel sheets are bonded with 20μm-thick aluminum or aluminum alloy films with zinc or zinc alloy plating applied to the joining surfaces in advance by roll pressure bonding, and then zinc-
A zinc-aluminum double-layer surface-treated steel sheet was produced by heating to 382° C., which is the eutectic temperature of aluminum, or higher by electrical heating.
【００１６】製造した材料は以下の評価を実施した。そ
の際、比較として従来法によるアルミフィルムをロール
圧着した鋼板と、亜鉛−アルミ二層蒸着めっき鋼板も評
価した。The produced materials were evaluated as follows. At that time, for comparison, a steel plate roll-bonded with an aluminum film by a conventional method and a zinc-aluminum double layer vapor deposition plated steel plate were also evaluated.
【００１７】表１に製造条件の詳細と試験結果の一覧を
示す。Table 1 shows details of manufacturing conditions and a list of test results.
【００１８】密着性評価
亜鉛系めっき鋼板の表面とアルミもしくはアルミ系合金
フィルムの密着性をＪＩＳ Ｇ３３１２デユポン衝撃
変形試験で測定した。Adhesion Evaluation The adhesion between the surface of the zinc-based plated steel sheet and the aluminum or aluminum alloy film was measured using the JIS G3312 DuPont impact deformation test.
【００１９】耐食性評価
ＪＩＳ Ｇ２３７１塩水噴霧試験を５０００時間行な
い赤錆発生状況を観察した。Evaluation of Corrosion Resistance A JIS G2371 salt spray test was conducted for 5,000 hours, and the occurrence of red rust was observed.
【００２０】実施例１，２，３，４は溶融亜鉛めっき鋼
板、５は溶融亜鉛−アルミめっき鋼板、６は電気亜鉛め
っき鋼板本特許の方法適用したもので、何れも密着性、
耐食性が良好である。対し比較例１は加熱処理温度が低
いため、比較例２は予め接合面にＺｎ系めっきを施して
いないため密着性が不良であった。また、比較例３は、
密着性は良好なものの上層Ａｌめっきにピンホール状の
皮膜欠陥が存在するため耐食性が不良であった。Examples 1, 2, 3, and 4 are hot-dip galvanized steel sheets, 5 is a hot-dip galvanized steel sheet, and 6 is an electrogalvanized steel sheet to which the method of this patent is applied.
Good corrosion resistance. On the other hand, in Comparative Example 1, the heat treatment temperature was low, and in Comparative Example 2, the bonding surface was not previously plated with Zn, so the adhesion was poor. In addition, Comparative Example 3 is
Although the adhesion was good, the corrosion resistance was poor because there were pinhole-like film defects in the upper Al plating.
【００２１】[0021]
【表１】[Table 1]
【００２２】[0022]
【発明の効果】以上説明した通り、本発明の方法で製造
した亜鉛−アルミ二層表面処理鋼板は良好な皮膜密着性
と耐食性を有し、今後の表面処理鋼板の需要拡大に多大
な効果を奏するものである。[Effects of the Invention] As explained above, the zinc-aluminum double-layer surface-treated steel sheet produced by the method of the present invention has good film adhesion and corrosion resistance, and will have a great effect on increasing demand for surface-treated steel sheets in the future. It is something to play.
Claims (1)
、予め接合面側に亜鉛もしくは亜鉛系合金めっきを施し
たアルミもしくはアルミ系合金フィルムを接合した後、
亜鉛−アルミの共晶温度以上に加熱することを特徴とす
る亜鉛−アルミ二層表面処理鋼板の製造方法。[Claim 1] After bonding aluminum or aluminum alloy film, which has been previously plated with zinc or zinc alloy on the joint surface side, to at least one side of the zinc plated steel sheet,
A method for manufacturing a zinc-aluminum double-layer surface-treated steel sheet, which comprises heating to a temperature higher than the eutectic temperature of zinc-aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3402091A JPH04274891A (en) | 1991-02-28 | 1991-02-28 | Manufacture of zinc-aluminium two layer surface treated steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3402091A JPH04274891A (en) | 1991-02-28 | 1991-02-28 | Manufacture of zinc-aluminium two layer surface treated steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04274891A true JPH04274891A (en) | 1992-09-30 |
Family
ID=12402704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3402091A Withdrawn JPH04274891A (en) | 1991-02-28 | 1991-02-28 | Manufacture of zinc-aluminium two layer surface treated steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04274891A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG90041A1 (en) * | 1999-03-22 | 2002-07-23 | Fu Tsai Tsai | Hot dipping 5 weight % a1-zn alloy coating on steel |
| JP2007130686A (en) * | 2005-10-11 | 2007-05-31 | Nissan Motor Co Ltd | Method for joining different metals by resistance welding and joining structure of metals |
-
1991
- 1991-02-28 JP JP3402091A patent/JPH04274891A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG90041A1 (en) * | 1999-03-22 | 2002-07-23 | Fu Tsai Tsai | Hot dipping 5 weight % a1-zn alloy coating on steel |
| JP2007130686A (en) * | 2005-10-11 | 2007-05-31 | Nissan Motor Co Ltd | Method for joining different metals by resistance welding and joining structure of metals |
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