JPH04191393A - Surface-treated steel sheet having superior corrosion resistance - Google Patents
Surface-treated steel sheet having superior corrosion resistanceInfo
- Publication number
- JPH04191393A JPH04191393A JP32378190A JP32378190A JPH04191393A JP H04191393 A JPH04191393 A JP H04191393A JP 32378190 A JP32378190 A JP 32378190A JP 32378190 A JP32378190 A JP 32378190A JP H04191393 A JPH04191393 A JP H04191393A
- Authority
- JP
- Japan
- Prior art keywords
- corrosion resistance
- steel sheet
- weight
- plating layer
- plating
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 230000007797 corrosion Effects 0.000 title claims abstract description 26
- 238000005260 corrosion Methods 0.000 title claims abstract description 26
- 238000007747 plating Methods 0.000 claims abstract description 44
- 150000003839 salts Chemical class 0.000 claims abstract description 12
- 238000009713 electroplating Methods 0.000 claims abstract description 11
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 10
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 10
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 9
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 229910052748 manganese Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 description 14
- 229910045601 alloy Inorganic materials 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 229910001182 Mo alloy Inorganic materials 0.000 description 2
- 229910000756 V alloy Inorganic materials 0.000 description 2
- 229910001080 W alloy Inorganic materials 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- LLQHSBBZNDXTIV-UHFFFAOYSA-N 6-[5-[[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]methyl]-4,5-dihydro-1,2-oxazol-3-yl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC1CC(=NO1)C1=CC2=C(NC(O2)=O)C=C1 LLQHSBBZNDXTIV-UHFFFAOYSA-N 0.000 description 1
- 229910018084 Al-Fe Inorganic materials 0.000 description 1
- 229910018131 Al-Mn Inorganic materials 0.000 description 1
- 229910018192 Al—Fe Inorganic materials 0.000 description 1
- 229910018461 Al—Mn Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910015221 MoCl5 Inorganic materials 0.000 description 1
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- 229910019804 NbCl5 Inorganic materials 0.000 description 1
- 229910001362 Ta alloys Inorganic materials 0.000 description 1
- 229910004537 TaCl5 Inorganic materials 0.000 description 1
- 229910021553 Vanadium(V) chloride Inorganic materials 0.000 description 1
- 229910000946 Y alloy Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- GICWIDZXWJGTCI-UHFFFAOYSA-I molybdenum pentachloride Chemical compound Cl[Mo](Cl)(Cl)(Cl)Cl GICWIDZXWJGTCI-UHFFFAOYSA-I 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- YHBDIEWMOMLKOO-UHFFFAOYSA-I pentachloroniobium Chemical compound Cl[Nb](Cl)(Cl)(Cl)Cl YHBDIEWMOMLKOO-UHFFFAOYSA-I 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- OEIMLTQPLAGXMX-UHFFFAOYSA-I tantalum(v) chloride Chemical compound Cl[Ta](Cl)(Cl)(Cl)Cl OEIMLTQPLAGXMX-UHFFFAOYSA-I 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、耐食性に優れた表面処理鋼板に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a surface-treated steel sheet with excellent corrosion resistance.
〈従来の技術〉
溶融めっき法によるＡ１めつき鋼板、Ａ１合金めっき鋼
板は、耐食性、耐熱性に優れるため従来より自動車のマ
フラー、ストーブなどの暖房器具、オーブンなどの厨房
器具等、耐食性、耐熱性が要求される用途に広く適用さ
れている。<Conventional technology> A1-plated steel sheets and A1 alloy-plated steel sheets produced by hot-dip plating have excellent corrosion resistance and heat resistance, and have traditionally been used in automobile mufflers, heaters such as stoves, kitchen appliances such as ovens, etc. It is widely used in applications that require
ところが、溶融めっき法によるＡｌ系めっきは７００℃
程度の高温で行われるため、母材の性質を劣化させる欠
点があった。 さらに、めっき皮膜と下地鋼板の間に脆
いＡｌ−Ｆｅ合金層が生成し、このため加工性が低下し
重大な問題となっていた。However, Al-based plating by hot-dip plating is heated to 700°C.
Since it is carried out at relatively high temperatures, it has the disadvantage of degrading the properties of the base material. Furthermore, a brittle Al--Fe alloy layer is formed between the plating film and the underlying steel sheet, which reduces workability and poses a serious problem.
一方、Ａ１は水溶液から電析しないため、塩化アルミニ
ウム（ＡＩＣｌ、 ）等を主成分とする溶融塩からの電
気Ａｌめっきが従来より考案されている。 この方法に
よると、２００℃程度の低温でＡＩめっきが可能である
ため、母材の性質が劣化せず、またＡｌ−Ｆｅ合金層が
生成しないので加工性も劣化しない。 しかし、溶融塩
電気Ａ１めっきはＩＯＡ／ｄｍ２以上の実用的な電流密
度でめっきを行うとめっき皮膜がパウダー状または樹脂
状となり、このため耐食性が劣化する問題があった。On the other hand, since A1 is not electrodeposited from an aqueous solution, electrolytic Al plating from a molten salt mainly composed of aluminum chloride (AICl, ), etc., has been devised. According to this method, AI plating is possible at a low temperature of about 200° C., so the properties of the base material do not deteriorate, and since an Al-Fe alloy layer is not generated, workability does not deteriorate. However, molten salt electroplating A1 has a problem in that when plating is performed at a practical current density of IOA/dm2 or more, the plating film becomes powder-like or resin-like, resulting in deterioration of corrosion resistance.
このような溶融塩電気Ａ１めっきの欠点を改善するため
、溶融塩電気めっき法によるＡｌ−Ｍｎめっき鋼板（特
公昭４３−１８２４５号公報）が提案されている。 し
かし、Ａ １−Ｍｎめっき鋼板の耐食性も十分とはいえ
ないため、さらに第３元素を添加したＡ １− Ｍ ｎ
−Ｘ型の３元系Ａ１合金めっき鋼板が検討されており
、第３元素としてＴｉ、Ｃｒ、Ｆｅ、Ｃｏ。In order to improve the drawbacks of molten salt electroplating A1, an Al-Mn plated steel sheet by molten salt electroplating method (Japanese Patent Publication No. 18245/1983) has been proposed. However, the corrosion resistance of A 1-Mn plated steel sheet is not sufficient, so A 1-Mn coated steel sheet with a third element added is used.
-X type ternary A1 alloy plated steel sheets are being considered, with Ti, Cr, Fe, and Co as the third elements.
Ｎｉ、Ｚｎ、Ｓｎ、Ｐｂが提案されている（特開昭６１
−２３８９９５号公報、特開昭６１−２６１４９２号公
報、特開昭６１．−２９５３９１号公報、特開昭６１−
２９５３９２号公報）。Ni, Zn, Sn, and Pb have been proposed (Japanese Unexamined Patent Publication No. 1983
-238995, JP-A-61-261492, JP-A-61. -295391 Publication, JP-A-61-
295392).
これらのＡ Ｉ −Ｍ ｎ −Ｘ型の３元系Ａ１合金め
っき鋼板の耐食性はＡ ｌ−Ｍｎめっき鋼板と同等かや
や優れている程度であり、例えば自動車のマフラーのよ
うな厳しい腐食環境で使用した場合には耐食性が十分と
はいえず、さらに耐食性の優れたＡ１合金めっき鋼板の
開発が切望されていた。The corrosion resistance of these A I - M n - In this case, the corrosion resistance cannot be said to be sufficient, and there has been a strong desire to develop an A1 alloy plated steel sheet with even better corrosion resistance.
〈発明が解決しようとする課題〉
上述のように、これまでに知られているＡｌ−Ｍｎ−Ｘ
型の３元系Ａ１合金めっき鋼板（Ｘ＝Ｔｉ、Ｃｒ、Ｆｅ
、Ｃｏ、Ｎｉ、Ｚｎ。<Problem to be solved by the invention> As mentioned above, hitherto known Al-Mn-X
Mold ternary A1 alloy plated steel plate (X = Ti, Cr, Fe
, Co, Ni, Zn.
Ｓｎ、Ｐｂ）は、例えば自動車のマフラーのような厳し
い腐食環境下での耐食性が不十分である。Sn, Pb) have insufficient corrosion resistance in severe corrosive environments such as automobile mufflers.
本発明の目的は、上記従来技術の問題点を解決した、耐
食性に優れた表面処理鋼板を提供することにある。An object of the present invention is to provide a surface-treated steel sheet with excellent corrosion resistance, which solves the problems of the prior art described above.
〈課題を解決するための手段〉
すなわち、本発明は、鋼板上に、Ｍｎを１〜５０重量％
含有し、さらにＶ、Ｎｂ、Ｔａ。<Means for Solving the Problems> In other words, the present invention provides a method in which Mn is added in an amount of 1 to 50% by weight on a steel plate.
Contains V, Nb, and Ta.
Ｍｏ、およびＷよりなる群より選ばれた少なくとも１種
を０．１〜５０重量％含有し、これらの合計が５５重量
％以下であり、残部が実質的にＡＩからなるめっき層を
１〜４０ ｇ ／ ｍ ２有することを特徴とする耐食
性に優れた表面処理鋼板を提供するものである。The plating layer contains 0.1 to 50% by weight of at least one selected from the group consisting of Mo and W, the total of these is 55% by weight or less, and the remainder is substantially made of AI. The present invention provides a surface-treated steel sheet with excellent corrosion resistance, characterized by having a corrosion resistance of
また、前記めっき層が溶融塩電気めっき法により形成さ
れたものであるのが好ましい。Further, it is preferable that the plating layer is formed by molten salt electroplating.
以下、本発明について詳細に説明する。The present invention will be explained in detail below.
本発明者らは、耐食性に優れた表面処理鋼板を実現する
ために、種々のＡ１合金めっき鋼板について鋭意検討を
重ねた結果、Ｍｎを１〜５０重量％含有し、さらにＶ、
Ｎｂ、Ｔａ。In order to realize surface-treated steel sheets with excellent corrosion resistance, the present inventors have conducted extensive studies on various A1 alloy plated steel sheets, and have found that they contain 1 to 50% by weight of Mn, and further contain V,
Nb, Ta.
Ｍｏ、およびＷよりなる群より選ばれた１種以上を０．
０１〜５０重量％含有し、これらの合計が５５重量％以
下であり、残部が実質的にＡＩからなるめっき層を１〜
４０ ｇ ／ ｍ ”有するＡ１合金めっき鋼板が最も
耐食性が優れていることを新規に見い出した。 これら
のＡ１合金めっき鋼板の耐食性が優れている理由は、め
っき皮膜が極めて緻密な保護皮膜であるとともに、Ｖ、
Ｎｂ、Ｔａ、Ｍｏ、Ｗが腐食によるＡＩの溶出を抑制す
ることによるものと考えられる。Mo, and one or more selected from the group consisting of W.
The plating layer contains 01 to 50% by weight, the total of these is 55% by weight or less, and the remainder substantially consists of 1 to 50% by weight.
It has been newly discovered that A1 alloy plated steel sheets with a thickness of 40 g/m" have the best corrosion resistance. The reason why these A1 alloy plated steel sheets have excellent corrosion resistance is that the plating film is an extremely dense protective film and ,V,
This is thought to be due to the fact that Nb, Ta, Mo, and W suppress the elution of AI due to corrosion.
めっき層中のＭｎの含有率は１〜５０重量％である。
含有率が１重量％未満では所望の耐食性を得ることがで
きず、５０重量％を越えるとめっき皮膜が硬くなり、加
工性の点で好ましくない。 含有率の合計が５〜４０重
量％であればより好ましい。The Mn content in the plating layer is 1 to 50% by weight.
If the content is less than 1% by weight, the desired corrosion resistance cannot be obtained, and if it exceeds 50% by weight, the plating film becomes hard, which is not preferable in terms of workability. It is more preferable that the total content is 5 to 40% by weight.
めっき層中のＶ、Ｎｂ、Ｔａ、Ｍｏ、Ｗの１種または２
種以上の含有率の合計は０．０１〜５０重量％である。One or two of V, Nb, Ta, Mo, and W in the plating layer
The total content of the species or more is 0.01 to 50% by weight.
含有率が０．０１重鳳％未満では所望の耐食性を得る
ことができず、５０重量％を越えるとめっき皮膜が硬く
なり、加工性の点で好ましくない。 含有率の合計が０
．１〜４０重量％であればより好ましい。If the content is less than 0.01% by weight, the desired corrosion resistance cannot be obtained, and if it exceeds 50% by weight, the plating film becomes hard, which is not preferable in terms of workability. Total content is 0
．． More preferably, it is 1 to 40% by weight.
めっき層中のＭｎの含有率とＶ、Ｎｂ。Mn content and V, Nb in the plating layer.
Ｔａ、Ｍｏ、Ｗの１種または２種以上の含有率との合計
は５５重量％以下である。 含有率の合計が５５重量％
を越えるとめっき皮膜が硬くなり、加工性の点で好まし
くない。The total content of one or more of Ta, Mo, and W is 55% by weight or less. Total content is 55% by weight
If it exceeds this value, the plating film will become hard, which is unfavorable in terms of workability.
めっき層の付着量は１〜４０ｇ／ｍ”である。 めっき
付着量が１ｇ７ｍ”未満では所望の耐食性を得ることが
できず、４０ｇ／ｍ”を越えると加工性の点で好ましく
ない。 めっき付着量が５〜３０ｇ／ｍ”であればより
好ましい。The amount of plating layer deposited is 1 to 40 g/m". If the amount of plating deposit is less than 1 g/m", the desired corrosion resistance cannot be obtained, and if it exceeds 40 g/m", it is unfavorable in terms of workability. Plating Adhesion More preferably, the amount is 5 to 30 g/m''.
めっき層の形成方法としては、溶融塩または非水溶媒か
らの電気めっき法、真空蒸着法等、公知の方法がいずれ
も適用可能であるが、操業コスト等の点より、溶融塩か
らの電気めっき法が特に好ましく適用される。 また、
溶融塩からの電気めっき法によってめっき層を形成する
際のめっき条件には特に限定はなく、通常行われている
溶融塩電気めっき法によればよい。As a method for forming the plating layer, any known method can be applied, such as electroplating from molten salt or a non-aqueous solvent, vacuum evaporation method, etc. However, from the viewpoint of operational costs etc., electroplating from molten salt is preferable. The law is particularly preferably applied. Also,
There are no particular limitations on the plating conditions when forming a plating layer by electroplating from molten salt, and a commonly used molten salt electroplating method may be used.
〈実施例〉 以下、本発明を実施例により具体的に説明する。<Example> Hereinafter, the present invention will be specifically explained with reference to Examples.
（実施例１）
通常の方法で脱脂、酸洗した冷延鋼板を非酸化性雰囲気
中で乾燥し、めっき温度まで予熱した後、下記の溶融塩
Ａｌ−Ｍｎ−Ｖ合金めっき浴からＡｌ−Ｍｎ−Ｖ合金め
っきを行った′。(Example 1) A cold-rolled steel sheet that had been degreased and pickled in a conventional manner was dried in a non-oxidizing atmosphere and preheated to the plating temperature. -V alloy plating was performed.
浴組成： ＡｌＣｌ５ ６０ ｍ ｏ １％ＮａＣ１２
６ｍｏ１％
ＫＣＩ １４ｍｏ１％
ＭｎＣ１ｇ １００〜１００． ＯＯＯｐｐｍ添加Ｖ
Ｃ１ａ １００〜３００．０００ｐｐｍ添加浴温度
＝２００℃
電流密度＝１〜１００／ｄｍ２
なお、ＭｎＣ１１の添加量、ＶＣｌａの添加量および電
流密度を変化させることによりＡｌ−Ｍｎ−■合金めっ
き層におけるＭｎ含有率、■含有率をコントロールした
。Bath composition: AlCl5 60 m o 1% NaC12
6mo1% KCI 14mo1% MnC1g 100-100. OOOppm addition V
C1a 100-300.000ppm addition bath temperature = 200°C Current density = 1-100/dm2 In addition, by changing the amount of MnC11 added, the amount of VCla added, and the current density, the Mn content in the Al-Mn-■ alloy plating layer can be adjusted. The content rate was controlled.
形成したＡｔ−Ｍｎ−Ｖ合金めっき層中のＭｎ含有率、
■含有率およびめっき付着量を表１に示す。Mn content in the formed At-Mn-V alloy plating layer,
■Table 1 shows the content and amount of plating.
（実施例２）
実施例１のＶＣｌ、の代わりにＮｂＣ１ｇを用い、その
他は実施例１と同様の方法でＡ ｌ −Ｍ ｎ −Ｎｂ
合金めっきを行った。(Example 2) A l -M n -Nb was prepared in the same manner as in Example 1 except that 1 g of NbC was used instead of VCl in Example 1.
Alloy plating was performed.
形成したＡｌ−Ｍｎ−Ｎｂ合金めっき層中のＭｎ含有率
、Ｎｂ含有率およびめっき付着量を表２に示す。Table 2 shows the Mn content, Nb content, and coating weight in the formed Al-Mn-Nb alloy plating layer.
（実施例３）
実施例１のＶＣＩｍの代わりに７ａＣ１ｓを用い、その
他は実施例１と同様の方法でＡ Ｉ −Ｍ ｎ −Ｔａ
合金めっきを行った。(Example 3) A I -M n -Ta was prepared in the same manner as in Example 1 except that 7aC1s was used instead of VCIm in Example 1.
Alloy plating was performed.
形成したＡｌ−Ｍｎ−Ｔａ合金めっき層中のＭｎ含有率
、Ｔａ含有率およびめっき付着量を表３に示す。Table 3 shows the Mn content, Ta content, and coating weight in the formed Al-Mn-Ta alloy plating layer.
（実施例４）
実施例１のＶＣｌ、の代わりにＭｏＣ１−を用い、その
他は実施例１と同様の方法でＡｌ−Ｍｎ−Ｍｏ合金めっ
きを行った。(Example 4) Al-Mn-Mo alloy plating was performed in the same manner as in Example 1 except that MoC1- was used instead of VCl in Example 1.
形成したＡｌ−Ｍｎ−Ｍｏ合金めっき層中のＭｎ含有率
、Ｍｏ含有率およびめっき付着量を表４に示す。Table 4 shows the Mn content, Mo content, and coating weight in the formed Al-Mn-Mo alloy plating layer.
（実施例５）
実施例１のＶＣＩ ｍの代わりにｗＣ１６を用い、その
他は実施例１と同様の方法でＡ ｌ −Ｍｎ−Ｗ合金め
っきを行った。(Example 5) Al-Mn-W alloy plating was performed in the same manner as in Example 1 except that wC16 was used instead of VCI m in Example 1.
形成したＡ １− Ｍ ｎ −Ｗ合金めっき層中のＭｎ
含有率、Ｗ含有率およびめっき付着量を表５に示す。Mn in the formed A1-Mn-W alloy plating layer
Table 5 shows the content, W content, and coating weight.
（実施例６）
実施例１のＭＣ１，の代わりにＶＣｌ５． ＮｂＣｌ５
゜ＴａＣｌ５ 、 ＭｏＣｌ５ 、 ＷＣｌｇのうちの
２種を用い、その他は実施例１と同様の方法でＡＩ−Ｍ
ｎ−Ｘ−Ｙ （Ｘ、Ｙ＝Ｖ、Ｎｂ、Ｔａ、Ｍｏ、Ｗ。(Example 6) In place of MC1 of Example 1, VCl5. NbCl5
゜AI-M was prepared in the same manner as in Example 1 except for using two of TaCl5, MoCl5, and WClg.
n-X-Y (X, Y=V, Nb, Ta, Mo, W.
Ｘ≠Ｙ）合金めっきを行った。X≠Y) Alloy plating was performed.
形成したＡｌ−Ｍｎ−Ｘ−Ｙ合金めっき層中のＭｎ含有
率、Ｘ含有率、Ｙ含有率およびめっき付着量を表６に示
す。Table 6 shows the Mn content, X content, Y content, and coating weight in the formed Al-Mn-X-Y alloy plating layer.
表７に、従来より行われている本発明の範囲外の各種の
ＡＪ２合金めつき鋼板を比較のために示す。Table 7 shows various conventional AJ2 alloy plated steel sheets outside the scope of the present invention for comparison.
このようにして作製した各種のＡ１合金めっき鋼板の耐
食性をＳＳＴにより評価した。 評価方法は下記のとお
りである。The corrosion resistance of the various A1 alloy plated steel sheets produced in this way was evaluated by SST. The evaluation method is as follows.
× １００日以内に赤錆発生
△ 赤錆発生まで１００日以上
○ 赤錆発生まで２００日以上
表１〜６に示すように、本発明の表面処理鋼板は優れた
耐食性を示す。× Red rust occurs within 100 days Δ Red rust occurs in 100 days or more O Red rust occurs in 200 days or more As shown in Tables 1 to 6, the surface-treated steel sheet of the present invention exhibits excellent corrosion resistance.
上記の結果より本発明の効果は明らかである。The effects of the present invention are clear from the above results.
表 １ 実施例ｊ１の結果
表 ４ 実施例４の結果
表 ５ 実施例５の結果
表 ６ 実施例６の結果
表 ７
〈発明の効果〉
以上詳細に説明したとおり、本発明の表面処理鋼板は、
鋼板上に、ＭｎおよびＶ、Ｎｂ。Table 1 Results table of Example j1 4 Results table of Example 4 5 Results table of Example 5 6 Results table of Example 6 7 <Effects of the invention> As explained in detail above, the surface-treated steel sheet of the present invention has the following properties:
Mn, V, and Nb on the steel plate.
Ｔａ、Ｍｏ、Ｗの１種または２種以上を含有するＡ１合
金めつき層を有すること番こより、耐食性に極めて優れ
た表面処理鋼板を実現したものであり、その工業的価値
は非常に高しＡものである。By having an A1 alloy plating layer containing one or more of Ta, Mo, and W, we have realized a surface-treated steel sheet with extremely excellent corrosion resistance, and its industrial value is extremely high. It is A thing.
Claims (2)
Ｖ、Ｎｂ、Ｔａ、Ｍｏ、およびＷよりなる群より選ばれ
た少なくとも１種を０．１〜５０重量％含有し、これら
の合計が５５重量％以下であり、残部が実質的にＡｌか
らなるめっき層を１〜４０ｇ／ｍ＾２有することを特徴
とする耐食性に優れた表面処理鋼板。(1) Contain 1 to 50% by weight of Mn on a steel plate, and further contain 0.1 to 50% by weight of at least one selected from the group consisting of V, Nb, Ta, Mo, and W. A surface-treated steel sheet with excellent corrosion resistance, characterized in that it has a plating layer of 1 to 40 g/m^2 in which the total amount of is 55% by weight or less, and the remainder is substantially made of Al.
れたものである請求項１に記載の耐食性に優れた表面処
理鋼板。(2) The surface-treated steel sheet with excellent corrosion resistance according to claim 1, wherein the plating layer is formed by molten salt electroplating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32378190A JPH04191393A (en) | 1990-11-27 | 1990-11-27 | Surface-treated steel sheet having superior corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32378190A JPH04191393A (en) | 1990-11-27 | 1990-11-27 | Surface-treated steel sheet having superior corrosion resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04191393A true JPH04191393A (en) | 1992-07-09 |
Family
ID=18158550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32378190A Pending JPH04191393A (en) | 1990-11-27 | 1990-11-27 | Surface-treated steel sheet having superior corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04191393A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120009436A1 (en) * | 2009-03-13 | 2012-01-12 | Nippon Steel Corporation | Non-oriented magnetic steel sheet and method for producing the same |
-
1990
- 1990-11-27 JP JP32378190A patent/JPH04191393A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120009436A1 (en) * | 2009-03-13 | 2012-01-12 | Nippon Steel Corporation | Non-oriented magnetic steel sheet and method for producing the same |
| US9051622B2 (en) * | 2009-03-13 | 2015-06-09 | Nippon Steel & Sumitomo Metal Corporation | Non-oriented magnetic steel sheet and method for producing the same |
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