JPH09143657A - High workability hot-dip zinc-magnesium-aluminium base alloy plated steel sheet - Google Patents
High workability hot-dip zinc-magnesium-aluminium base alloy plated steel sheetInfo
- Publication number
- JPH09143657A JPH09143657A JP7297142A JP29714295A JPH09143657A JP H09143657 A JPH09143657 A JP H09143657A JP 7297142 A JP7297142 A JP 7297142A JP 29714295 A JP29714295 A JP 29714295A JP H09143657 A JPH09143657 A JP H09143657A
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- Japan
- Prior art keywords
- steel sheet
- plating layer
- plated steel
- hot
- dip
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高加工性溶融Ｚｎ
−Ｍｇ−Ａｌ系合金めっき鋼板に関するものである。TECHNICAL FIELD The present invention relates to a high workability molten Zn.
-Mg-Al alloy plated steel sheet.
【０００２】[0002]
【従来の技術】耐食性に優れた溶融Ｚｎ合金めっき鋼板
については従来より多くの提案がなされており、本発明
者らも、すでに特開平４−１４７９５５号公報において
加工後の耐赤錆性が通常の溶融Ｚｎめっき鋼板よりも大
幅に優れたＺｎ−Ｍｇ−Ａｌめっき鋼板の製造方法を提
案している。最近、建材、土木分野においては、未塗装
状態あるいは加工後に塗装を施した溶融Ｚｎめっき鋼板
が使用されるが、これらのめっき鋼板は丸パイプあるい
は角パイプ等の各種部材等に加工されて使用される。こ
れら加工の際には通常、めっき層のミクロクラックが生
じるが、最近では後処理、塗装性等の観点からこの加工
部のミクロクラックを減少させてほしいという一段と厳
しい加工性の向上の要望が高まってきた。このような要
望に対して、上記Ｚｎ−Ｍｇ−Ａｌめっき鋼板は、耐食
性の優れた鋼板であり、加工性も優れているが、加工部
のミクロクラックについては通常の溶融Ｚｎめっき鋼板
と同程度であり未だ十分とはいえず、そのさらなる改良
が必要であった。2. Description of the Related Art Many proposals have been made for a hot-dip Zn alloy-plated steel sheet having excellent corrosion resistance, and the inventors of the present invention have already disclosed in JP-A-4-147955 that the red rust resistance after processing is normal. It proposes a manufacturing method of a Zn-Mg-Al plated steel sheet which is significantly superior to the hot dip galvanized steel sheet. Recently, in the field of building materials and civil engineering, hot-dip Zn-plated steel sheets that have not been painted or have been painted after processing have been used, but these plated steel sheets are used after being processed into various members such as round pipes or square pipes. It Microcracks in the plating layer usually occur during these processes, but recently there is a growing demand for even more severe processability to reduce the microcracks in these processed parts from the viewpoint of post-treatment and paintability. Came. In response to such a demand, the Zn-Mg-Al plated steel sheet is a steel sheet having excellent corrosion resistance and excellent workability, but microcracks in the worked portion are similar to those of a normal hot-dip Zn-plated steel sheet. However, it was not sufficient yet, and further improvement was necessary.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記したよ
うな加工部のミクロクラックの少ない溶融Ｚｎ−Ｍｇ−
Ａｌ系めっき鋼板の提供を目的とする。DISCLOSURE OF THE INVENTION The present invention is directed to molten Zn-Mg- with less microcracks in the processed portion as described above.
The purpose is to provide an Al-based plated steel sheet.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、Ｚｎ−Ｍ
ｇ−Ａｌめっき鋼板のめっき層の成分および構造を詳細
に解析し、さらに添加金属を考慮することにより種々の
実験を重ね、上記課題である加工部のミクロクラックの
少ない溶融Ｚｎ−Ｍｇ−Ａｌ系合金めっき鋼板を開発す
べく検討した。本発明者らはまず、特開平４−１４７９
５５号公報で提案したＺｎ−Ｍｇ−Ａｌめっき層に種々
の金属を微量に添加し、厳しい加工条件を想定したＯＴ
曲げでのミクロクラックの発生状況を光学顕微鏡で調査
した。その結果、めっき層中にＴｉ，ＢあるいはＳｉを
単独あるいは複合で微量添加することにより、ミクロク
ラックが著しく減少することを見いだした。その後、最
適めっき層組成を見いだすべく検討を行った結果、本発
明のＺｎ合金めっき鋼板を見いだすに至り、下記の本発
明を完成したものである。The present inventors have found that Zn-M
The composition and structure of the plating layer of the g-Al-plated steel sheet are analyzed in detail, and various experiments are repeated by considering the added metal, and the molten Zn-Mg-Al system having the above-mentioned problems with few microcracks in the processed part Considered to develop alloy plated steel sheet. The present inventors first of all, the Japanese Patent Laid-Open No. 4-1479.
Japanese Patent Laid-Open No. 55-55 proposes an OT in which a small amount of various metals are added to the Zn-Mg-Al plating layer to assume severe processing conditions.
The occurrence of microcracks in bending was investigated with an optical microscope. As a result, it has been found that microcracks are significantly reduced by adding a trace amount of Ti, B or Si alone or in combination in the plating layer. After that, as a result of investigation to find out the optimum plating layer composition, the present invention has led to the finding of the Zn alloy plated steel sheet of the present invention, and completed the following present invention.
【０００５】即ち、本発明は、鋼板の表面にＭｇ０．０
５〜３重量％，Ａｌ０．１〜１重量％を含有するＺｎ−
Ｍｇ−Ａｌ系合金めっき層を有する鋼板であって、その
層中に、さらにＴｉ，ＢまたはＳｉの１種または２種以
上で０．１重量％以上含有するＺｎ合金めっき層を有す
ることを特徴とする高加工性溶融Ｚｎ−Ｍｇ−Ａｌ系合
金めっき鋼板、および上記のＺｎ合金めっき層の下層に
Ｎｉめっき層を有することを特徴とする高加工性溶融Ｚ
ｎ−Ｍｇ−Ａｌ系合金めっき鋼板、さらには、これらの
溶融めっき層上にクロメート処理を行った高加工性溶融
Ｚｎ−Ｍｇ−Ａｌ系合金めっき鋼板である。That is, according to the present invention, Mg0.0
Zn-containing 5 to 3 wt% and Al 0.1 to 1 wt%
A steel sheet having a Mg-Al alloy plating layer, characterized by further having a Zn alloy plating layer containing 0.1% by weight or more of one or more of Ti, B or Si in the layer. Highly workable hot-dip Zn-Mg-Al alloy-plated steel sheet, and a high-workability hot-dip Z having a Ni plating layer below the Zn alloy plating layer
It is an n-Mg-Al-based alloy plated steel sheet, and further a highly workable hot-dip Zn-Mg-Al-based alloy plated steel sheet obtained by performing chromate treatment on these hot-dip plated layers.
【０００６】[0006]
【発明の実施の形態】以下、図面を用いて本発明につい
て詳細に説明する。図１は、Ｍｇ０．５重量％，Ａｌ
０．２５重量％を含有する付着量１３５ｇ／ｍ 2 のＺｎ
−Ｍｇ−Ａｌ合金めっき鋼板において、めっき層中のＴ
ｉ含有量と加工部のミクロクラック状況との関係を示し
た図である。原板としてはＡｌキルド熱延鋼板（板厚
１．６ｍｍ）を用いた。試験方法としては、ＯＴ曲げを
行った後、加工部を光学顕微鏡（×４００）で評価し
た。評価基準は、５：極微少、４：微少、３：少、２：
中程度、１：多、と評点を付し、評点３以上を合格とみ
なす。比較のために通常の溶融Ｚｎめっき鋼板（Ａｌ
０．２５％）も評価した。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings.
This will be described in detail. FIG. 1 shows Mg 0.5 wt%, Al
Deposition amount of 135 g / m containing 0.25% by weight Two Zn
-Mg-Al alloy plated steel sheet, T in the plating layer
Shows the relationship between i content and the state of microcracks in the processed part
FIG. As the original plate, Al killed hot rolled steel plate (plate thickness
1.6 mm) was used. As a test method, OT bending
After performing, evaluate the processed part with an optical microscope (× 400)
Was. The evaluation criteria are 5: extremely small, 4: small, 3: small, 2:
A grade of 3 or more is considered as passing, and a grade of 3 or more is regarded as passing.
Eggplant For comparison, ordinary hot-dip galvanized steel sheet (Al
0.25%) was also evaluated.
【０００７】図１より明らかなように、めっき層中にＴ
ｉを０．１重量％以上含有すると加工部のミクロクラッ
ク性がこれまでのＺｎ−Ｍｇ−Ａｌめっき鋼板（Ｔｉ無
添加）よりも著しく向上する。同様な結果は、Ｂあるい
はＳｉを添加した場合、およびＴｉ，Ｂ，Ｓｉを２種以
上添加した場合にも得られた。Ｔｉ，Ｂ，Ｓｉの１種ま
たは２種以上の添加量の上限については、特に制約はな
いが、あまり含有しすぎると製造上、浴中にドロスが多
くなりすぎるため１重量％程度までの含有量が望まし
い。上記したように厳しい加工部のミクロクラックの発
生が抑制される理由は、未だ明確ではないが、Ｚｎ−Ｍ
ｇ−Ａｌめっき層にＴｉ，Ｂ，Ｓｉが適正量含有される
ことにより、めっき層の構造が変化し、歪み変形能が改
善されめっき層のミクロクラックが微少するものと考え
られる。As is clear from FIG. 1, T is contained in the plating layer.
When i is contained in an amount of 0.1% by weight or more, the microcracking property of the worked part is significantly improved as compared with the conventional Zn-Mg-Al plated steel sheet (without Ti addition). Similar results were obtained when B or Si was added and when two or more kinds of Ti, B and Si were added. The upper limit of the amount of one or more of Ti, B, and Si added is not particularly limited, but if too much is added, dross will be too much in the bath during production, so the content is up to about 1% by weight. Amount is desirable. As described above, the reason why the generation of severe microcracks in the processed portion is suppressed is not clear, but Zn-M
It is considered that by containing an appropriate amount of Ti, B, and Si in the g-Al plating layer, the structure of the plating layer changes, the strain deformability is improved, and microcracks in the plating layer are reduced.
【０００８】本発明のＺｎ−Ｍｇ−Ａｌ系めっき層中で
は、Ｍｇの含有量は０．０５〜３重量％、Ａｌの含有率
は０．１〜１重量％とした。めっき層中のＭｇ含有量の
下限を０．０５重量％としたのは、平板および加工部の
耐食性に効果を発揮するためである。上限を３重量％と
したのはこれを超えるとめっき層が硬くしかも脆くなり
すぎるためにめっき密着性が劣化するためである。ま
た、めっき層中のＡｌ含有量の下限を０．１重量％とし
たのは、めっき密着性が良好となるためである。また、
上限を１重量％としたのは、１重量％を超えると加工部
の耐食性が劣化するためである。めっき層中には、これ
以外に、Ｆｅ，Ｓｂ，Ｐｂ、Ｎｉ，Ｓｎ，Ｃｏを単独あ
るいは複合で１％以内含有しても本発明の効果は何ら損
なわれるものではない。Ｚｎ−Ｍｇ−Ａｌ系めっきの付
着量については特に制約は設けないが、耐食性の観点か
ら１０ｇ／ｍ2 以上、加工性の観点からすると３５０ｇ
／ｍ2 以下であることが望ましい。In the Zn-Mg-Al system plating layer of the present invention, the content of Mg was 0.05 to 3% by weight and the content of Al was 0.1 to 1% by weight. The lower limit of the Mg content in the plated layer is set to 0.05% by weight, because it exerts an effect on the corrosion resistance of the flat plate and the processed part. The upper limit of 3% by weight is because if it exceeds this range, the plating layer becomes too hard and too brittle, and the plating adhesion deteriorates. The lower limit of the Al content in the plating layer is set to 0.1% by weight because the plating adhesion is good. Also,
The upper limit is set to 1% by weight because if it exceeds 1% by weight, the corrosion resistance of the processed portion deteriorates. In addition to this, the effect of the present invention is not impaired even if Fe, Sb, Pb, Ni, Sn, and Co are contained in the plating layer within 1% individually or in combination. The amount of Zn-Mg-Al-based plating applied is not particularly limited, but is 10 g / m 2 or more from the viewpoint of corrosion resistance, and 350 g from the viewpoint of workability.
/ M 2 or less is desirable.
【０００９】本発明においては、さらに加工部の耐食性
を向上させる場合には、Ｚｎ−Ｍｇ−Ａｌ系めっき層の
下層にＮｉめっき層を設ける。プレＮｉめっき量は２ｇ
／ｍ 2 以下が好ましい。２ｇ／ｍ2 を超えるとめっき密
着性が劣化する。Ｎｉめっき量の下限は０．２ｇ／ｍ2
が好ましい。めっき層下層にＮｉめっき層を有する場合
に加工性が良好となる理由は、めっき層と地鉄界面に生
成したＮｉ−Ａｌ−Ｆｅ−Ｚｎ化合物相が１種のバイン
ダーの役割を果たすことによるものと考えられる。In the present invention, the corrosion resistance of the processed portion is further
In order to improve the
A Ni plating layer is provided as a lower layer. Pre-Ni plating amount is 2g
/ M Two The following is preferred. 2g / mTwo If the thickness exceeds
Wearability deteriorates. The lower limit of the Ni plating amount is 0.2 g / mTwo
Is preferred. When Ni plating layer is under the plating layer
The reason why good workability is
The formed Ni-Al-Fe-Zn compound phase is one kind of vine.
It is believed that this is due to the role of the dar.
【００１０】また、さらに加工部の耐食性を向上する場
合には、Ｚｎ−Ｍｇ−Ａｌ系めっき層の上層にクロメー
ト層を設ける。クロメート処理層の組成、付着量につい
ても特に制約は設けないが、通常の実用範囲である１０
〜５０ｍｇ／ｍ2 程度が望ましい。なお、本発明の下地
鋼板としては、熱延鋼板、冷延鋼板共に使用でき、鋼種
も制約なく、例えばＡｌキルド鋼や、Ｔｉ，Ｎｂ等を添
加した極低炭素鋼およびこれらにＰ，Ｓｉ，Ｍｎ等を添
加した高強度鋼等種々のものが適用できる。Further, in order to further improve the corrosion resistance of the processed portion, a chromate layer is provided on the Zn-Mg-Al system plating layer. The composition and amount of the chromate-treated layer are not particularly limited, but they are within the normal practical range.
It is preferably about 50 mg / m 2 . As the base steel sheet of the present invention, both hot-rolled steel sheet and cold-rolled steel sheet can be used, and the steel type is not limited, and, for example, Al killed steel, ultra low carbon steel to which Ti, Nb, etc. are added and P, Si, Various materials such as high strength steel to which Mn is added can be applied.
【００１１】次に、本発明のめっき鋼板の製造方法につ
いて説明するが、特に限定するところはなく、通常の溶
融めっき法が適用できる。Ｚｎ浴中へのＭｇ，Ａｌ，Ｎ
ｉの添加は通常の方法でかまわない。Ｎｉプレめっきを
施す場合には、鋼板にプレＮｉめっきを０．２〜２ｇ／
ｍ2 施したのち無酸化あるいは還元雰囲気中で急速低温
加熱を行ったのち溶融めっきを行う方法等が好ましい。
また、Ｚｎ−Ｍｇ−Ａｌ系めっき層の上層にクロメート
処理層を設ける方法も、通常行われている処理方法で何
らかまわない。Next, a method for producing a plated steel sheet according to the present invention will be described, but there is no particular limitation, and an ordinary hot dip plating method can be applied. Mg, Al, N in Zn bath
The addition of i may be performed by a usual method. When Ni pre-plating is applied, pre-Ni plating is applied to the steel sheet at 0.2 to 2 g /
It is preferable to apply m 2 and then perform rapid low temperature heating in a non-oxidizing or reducing atmosphere and then perform hot dipping.
Further, the method of providing the chromate treatment layer on the Zn-Mg-Al-based plating layer may be any treatment method that is usually performed.
【００１２】[0012]
【実施例】Ａｌキルド熱延鋼板（板厚１．６ｍｍ）を下
地にして、４５０℃の浴中のＴｉ，Ｂ，Ｓｉ量を変化さ
せたＺｎ−Ｍｇ−Ａｌ−Ｎｉめっき浴で３ｓ溶融めっき
を行い、Ｎ2 ワイピングでめっき付着量を１３５ｇ／ｍ
2 に調整した。得られためっき鋼板のめっき層中組成を
表１に示すが、一部の試料についてはめっき前にＮｉプ
レめっきを施した。また、一部は、めっき層の上層にク
ロメート処理を施した。それぞれの付着量も表１に併せ
て示した。これらのめっき鋼板について、前述の加工性
評価（加工部のミクロクラック性の評価）に加えて、張
り出し加工部の耐食性を腐食サイクルテスト（ＣＣＴ）
で調査した。張り出し加工はポンチ径１０ｍｍで高さ１
０ｍｍに成形した。そして、ＣＣＴは、ＳＳＴ６ｈｒ→
乾燥３ｈｒ→湿潤１４ｈｒ→乾燥１ｈｒを１サイクルと
し６０サイクル繰り返した。ＣＣＴテストした加工部の
耐食性は赤錆発生率で評価した。評点は以下の通りで、
３以上を合格と判定した。[Example] Using an Al-killed hot-rolled steel sheet (plate thickness: 1.6 mm) as a base, a Zn-Mg-Al-Ni plating bath in which the amounts of Ti, B, and Si in the bath at 450 ° C were changed was used for 3 s hot dipping. And apply N 2 wiping to achieve a coating weight of 135 g / m
Adjusted to 2 . The composition of the plated layer of the obtained plated steel sheet is shown in Table 1. Some samples were pre-plated with Ni before plating. Further, in part, a chromate treatment was applied to the upper layer of the plating layer. The amount of each adhered is also shown in Table 1. For these plated steel sheets, in addition to the above-mentioned workability evaluation (evaluation of the microcrack property of the processed part), the corrosion resistance of the overhanging processed part was subjected to a corrosion cycle test (CCT).
I researched in. Overhanging process has a punch diameter of 10 mm and a height of 1
It was molded to 0 mm. And CCT is SST6hr →
60 cycles were repeated with one cycle consisting of dry 3 hr → wet 14 hr → dry 1 hr. The corrosion resistance of the processed portion subjected to the CCT test was evaluated by the rate of occurrence of red rust. The scores are as follows,
Three or more were judged to be acceptable.
【００１３】 [0013]
【００１４】以上の評価結果も、表１に示す。この表か
ら明らかなように、本発明のめっき層組成よりなるめっ
き鋼板は、加工部のミクロクラックが著しく少なく高加
工性を示すとともに、加工部の耐食性にも優れている。
これに対して、めっき層組成が本発明の範囲を逸脱する
比較例は、本発明鋼板に比較して加工性および加工部の
耐食性が劣る。The results of the above evaluations are also shown in Table 1. As is clear from this table, the plated steel sheet having the composition of the plating layer of the present invention has extremely few microcracks in the worked portion and exhibits high workability, and also has excellent corrosion resistance in the worked portion.
On the other hand, in the comparative example in which the composition of the plating layer deviates from the scope of the present invention, the workability and the corrosion resistance of the worked portion are inferior to those of the steel sheet of the present invention.
【００１５】[0015]
【表１】 [Table 1]
【００１６】[0016]
【発明の効果】本発明の溶融Ｚｎ−Ｍｇ−Ａｌ系合金め
っき鋼板は、めっき層中にＴｉ，Ｂ，Ｓｉのいずれかを
含有させることによって、加工部のミクロクラックを顕
著に減少させ、建材、土木、車体等の一段と厳しい加工
に供される用途などに有用である。EFFECTS OF THE INVENTION The hot-dip Zn-Mg-Al alloy-plated steel sheet of the present invention contains Ti, B, or Si in the plating layer to remarkably reduce the microcracks in the processed portion, and to improve the construction material. It is useful for applications such as civil engineering and car bodies that are subject to more severe processing.
【図１】Ｚｎ−Ｍｇ−Ａｌ−Ｔｉめっき層中のＴｉ含有
量と加工部のミクロクラック性との関係を示した図であ
る。FIG. 1 is a diagram showing a relationship between a Ti content in a Zn-Mg-Al-Ti plated layer and a microcrack property of a processed portion.
Claims (3)
Ａｌ０．１〜１重量％を含有する溶融Ｚｎ−Ｍｇ−Ａｌ
系合金めっき層を有する鋼板であって、そのめっき層中
に、さらにＴｉ，ＢまたはＳｉを１種または２種以上
０．１重量％以上含有するめっき層を有することを特徴
とする高加工性溶融Ｚｎ−Ｍｇ−Ａｌ系合金めっき鋼
板。1. The surface of a steel sheet is provided with 0.05 to 3% by weight of Mg,
Molten Zn-Mg-Al containing 0.1-1 wt% Al
A steel sheet having a system alloy plating layer, wherein the plating layer further has a plating layer containing one or more of Ti, B or Si in an amount of 0.1% by weight or more, and high workability. Hot-dip Zn-Mg-Al alloy plated steel sheet.
き層の下層にＮｉめっき層を有することを特徴とする高
加工性溶融Ｚｎ−Ｍｇ−Ａｌ系合金めっき鋼板。2. A high workability hot-dip Zn-Mg-Al alloy plated steel sheet having a Ni plating layer under the Zn-Mg-Al based plating layer according to claim 1.
−Ａｌ系めっき層の上層にクロメート層を設けることを
特徴とする高加工性溶融Ｚｎ−Ｍｇ−Ａｌ系合金めっき
鋼板。3. The molten Zn-Mg according to claim 1 or 2.
A high workability hot-dip Zn-Mg-Al alloy plated steel sheet, which comprises a chromate layer provided on the Al-plated layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07297142A JP3113188B2 (en) | 1995-11-15 | 1995-11-15 | High workability hot-dip Zn-Mg-Al alloy plated steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07297142A JP3113188B2 (en) | 1995-11-15 | 1995-11-15 | High workability hot-dip Zn-Mg-Al alloy plated steel sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09143657A true JPH09143657A (en) | 1997-06-03 |
| JP3113188B2 JP3113188B2 (en) | 2000-11-27 |
Family
ID=17842757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07297142A Expired - Fee Related JP3113188B2 (en) | 1995-11-15 | 1995-11-15 | High workability hot-dip Zn-Mg-Al alloy plated steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3113188B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0905270A2 (en) * | 1996-12-13 | 1999-03-31 | Nisshin Steel Co., Ltd. | HOT-DIP Zn-Al-Mg COATED STEEL SHEET EXCELLENT IN CORROSION RESISTANCE AND SURFACE APPEARANCE AND PROCESS FOR THE PRODUCTION THEREOF |
| WO2000071773A1 (en) * | 1999-05-24 | 2000-11-30 | Nippon Steel Corporation | Plated steel product, plated steel sheet and precoated steel sheet having excellent resistance to corrosion |
| JP2001355054A (en) * | 2000-04-11 | 2001-12-25 | Nippon Steel Corp | Hot dip zinc-aluminum alloy plated steel sheet excellent in workability and its production method |
| JP2002220650A (en) * | 2001-01-24 | 2002-08-09 | Kawasaki Steel Corp | Molten zinc-alloy plated steel-sheet superior in corrosion resistance and surface appearance, and manufacturing method therefor |
| JP2002371342A (en) * | 2001-06-14 | 2002-12-26 | Sumitomo Metal Ind Ltd | Hot-dip galvanized steel sheet and manufacturing method therefor |
| EP1763591A1 (en) | 2004-06-29 | 2007-03-21 | Corus Staal BV | Steel sheet with hot dip galvanized zinc alloy coating and process to produce it |
| US20100055344A1 (en) * | 2006-05-15 | 2010-03-04 | Thyssenkrupp Steel Ag | Process for Producing a Sheet Steel Product Coated with an Anticorrosion System |
| JP2010144190A (en) * | 2008-12-16 | 2010-07-01 | Jfe Steel Corp | Method for manufacturing galvannealed steel sheet having adequate platability |
| WO2020111779A2 (en) | 2018-11-29 | 2020-06-04 | 주식회사 포스코 | Galvanized steel sheet having excellent hardness and galling resistance, and manufacturing method therefor |
| CN116516215A (en) * | 2023-05-08 | 2023-08-01 | 保定奥琦圣新型金属材料制造有限公司 | Zinc-aluminum alloy and preparation method and application thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56152955A (en) * | 1980-04-25 | 1981-11-26 | Nippon Steel Corp | Hot dipping composition for steel sheet coated with zinc alloy by hot dipping |
| JPS6052569A (en) * | 1983-08-31 | 1985-03-25 | Taiyo Seikou Kk | Plated steel sheet for colored galvanized steel sheet |
| JPH0324255A (en) * | 1989-06-22 | 1991-02-01 | Nippon Steel Corp | Hot-dip galvanized hot rolled steel plate and its production |
-
1995
- 1995-11-15 JP JP07297142A patent/JP3113188B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56152955A (en) * | 1980-04-25 | 1981-11-26 | Nippon Steel Corp | Hot dipping composition for steel sheet coated with zinc alloy by hot dipping |
| JPS6052569A (en) * | 1983-08-31 | 1985-03-25 | Taiyo Seikou Kk | Plated steel sheet for colored galvanized steel sheet |
| JPH0324255A (en) * | 1989-06-22 | 1991-02-01 | Nippon Steel Corp | Hot-dip galvanized hot rolled steel plate and its production |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0905270A4 (en) * | 1996-12-13 | 2001-10-24 | Nisshin Steel Co Ltd | HOT-DIP Zn-Al-Mg COATED STEEL SHEET EXCELLENT IN CORROSION RESISTANCE AND SURFACE APPEARANCE AND PROCESS FOR THE PRODUCTION THEREOF |
| EP0905270A2 (en) * | 1996-12-13 | 1999-03-31 | Nisshin Steel Co., Ltd. | HOT-DIP Zn-Al-Mg COATED STEEL SHEET EXCELLENT IN CORROSION RESISTANCE AND SURFACE APPEARANCE AND PROCESS FOR THE PRODUCTION THEREOF |
| WO2000071773A1 (en) * | 1999-05-24 | 2000-11-30 | Nippon Steel Corporation | Plated steel product, plated steel sheet and precoated steel sheet having excellent resistance to corrosion |
| AU758643B2 (en) * | 1999-05-24 | 2003-03-27 | Nippon Steel & Sumitomo Metal Corporation | Plated steel product, plated steel sheet and precoated steel sheet having excellent resistance to corrosion |
| JP4555500B2 (en) * | 2000-04-11 | 2010-09-29 | 新日本製鐵株式会社 | Hot-dip zinc-aluminum alloy-plated steel sheet with excellent workability and manufacturing method thereof |
| JP2001355054A (en) * | 2000-04-11 | 2001-12-25 | Nippon Steel Corp | Hot dip zinc-aluminum alloy plated steel sheet excellent in workability and its production method |
| JP2002220650A (en) * | 2001-01-24 | 2002-08-09 | Kawasaki Steel Corp | Molten zinc-alloy plated steel-sheet superior in corrosion resistance and surface appearance, and manufacturing method therefor |
| JP4696364B2 (en) * | 2001-01-24 | 2011-06-08 | Ｊｆｅスチール株式会社 | Hot-dip galvanized steel sheet with excellent corrosion resistance and surface appearance |
| JP2002371342A (en) * | 2001-06-14 | 2002-12-26 | Sumitomo Metal Ind Ltd | Hot-dip galvanized steel sheet and manufacturing method therefor |
| EP1763591A1 (en) | 2004-06-29 | 2007-03-21 | Corus Staal BV | Steel sheet with hot dip galvanized zinc alloy coating and process to produce it |
| US8785000B2 (en) | 2004-06-29 | 2014-07-22 | Tata Steel Ijmuiden B.V. | Steel sheet with hot dip galvanized zinc alloy coating and process to produce it |
| US9677164B2 (en) | 2004-06-29 | 2017-06-13 | Tata Steel Ijmuiden B.V. | Steel sheet with hot dip galvanized zinc alloy coating and process to produce it |
| US10590521B2 (en) | 2004-06-29 | 2020-03-17 | Tata Steel Ijmuiden B.V. | Steel sheet with hot dip galvanized zinc alloy coating |
| US20100055344A1 (en) * | 2006-05-15 | 2010-03-04 | Thyssenkrupp Steel Ag | Process for Producing a Sheet Steel Product Coated with an Anticorrosion System |
| JP2010144190A (en) * | 2008-12-16 | 2010-07-01 | Jfe Steel Corp | Method for manufacturing galvannealed steel sheet having adequate platability |
| WO2020111779A2 (en) | 2018-11-29 | 2020-06-04 | 주식회사 포스코 | Galvanized steel sheet having excellent hardness and galling resistance, and manufacturing method therefor |
| KR20200064815A (en) | 2018-11-29 | 2020-06-08 | 주식회사 포스코 | Zinc coated steel sheet having excellent hardness and galling resistance, and method for amnufacturing the same |
| US11781207B2 (en) | 2018-11-29 | 2023-10-10 | Posco Co., Ltd | Galvanized steel sheet having excellent hardness and galling resistance |
| CN116516215A (en) * | 2023-05-08 | 2023-08-01 | 保定奥琦圣新型金属材料制造有限公司 | Zinc-aluminum alloy and preparation method and application thereof |
| CN116516215B (en) * | 2023-05-08 | 2024-01-30 | 保定奥琦圣新型金属材料制造有限公司 | Zinc-aluminum alloy and preparation method and application thereof |
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