JP3357467B2 - Hot-dip galvanized steel excellent in corrosion resistance and wear resistance and method for producing the same - Google Patents
Hot-dip galvanized steel excellent in corrosion resistance and wear resistance and method for producing the sameInfo
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- JP3357467B2 JP3357467B2 JP16837094A JP16837094A JP3357467B2 JP 3357467 B2 JP3357467 B2 JP 3357467B2 JP 16837094 A JP16837094 A JP 16837094A JP 16837094 A JP16837094 A JP 16837094A JP 3357467 B2 JP3357467 B2 JP 3357467B2
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- hot
- corrosion resistance
- plating
- resistance
- dip galvanized
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐食性および耐摩耗性
に優れた溶融亜鉛めっき鋼材とそ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 hot-dip galvanized steel excellent in corrosion resistance and abrasion resistance and a method for producing the same.
【０００２】[0002]
【従来の技術】近年、自動車用材料や建築用材料の分野
では、耐食性を有する亜鉛めっき鋼材, 鋼線その他の溶
融亜鉛めっき鋼材等が多く使用されている。その背景と
しては、亜鉛はもともと安価であるとともに、鋼に対し
犠牲防食効果を有し鋼材等の防食に適しているからであ
る。2. Description of the Related Art In recent years, galvanized steel, steel wire and other hot-dip galvanized steel having corrosion resistance have been widely used in the field of automotive materials and building materials. The reason is that zinc is originally inexpensive and has a sacrificial anticorrosion effect on steel and is suitable for anticorrosion of steel materials and the like.
【０００３】ところで、溶融亜鉛めっき使用時の外観に
関し最近、赤錆発生防止、塗装後耐ブリスター性の向上
等への要求が高まってきた。こうした要求に応えられる
ものとして従来、溶融亜鉛めっきの耐食性を向上させる
手段の１つとして、Mgを添加する方法、例えば、特開昭
56−41358 号公報、特開昭56−41359 号公報などの提案
がなされている。[0003] In recent years, there has been an increasing demand for the appearance of hot-dip galvanized plating to prevent the occurrence of red rust and to improve the blister resistance after painting. In order to meet such demands, conventionally, as one of means for improving the corrosion resistance of hot-dip galvanizing, a method of adding Mg, for example, as disclosed in
Japanese Patent Application Laid-Open Nos. 56-41358 and 56-41359 have been proposed.
【０００４】[0004]
【発明が解決しようとする課題】ところで、特開昭56−
41358 号公報に開示されている、溶融亜鉛めっき浴中に
Mgを添加して耐食性を向上させる上記従来技術の場合、
めっき浴表面における融液の酸化が激しく、これを防止
するために多量のAlを添加することが不可欠となり、そ
れ故に密着性や合金化を阻害するなど種々の不都合を招
き、その克服が必要であった。しかも、近年の溶融亜鉛
めっき鋼材については、耐食性のさらなる向上と、例え
ばめっき層の耐摩耗性の向上によるめっき膜損傷を抑制
する性質の付与なども望まれていた。By the way, Japanese Patent Application Laid-Open No.
In the hot dip galvanizing bath disclosed in JP 41358
In the case of the above prior art in which the corrosion resistance is improved by adding Mg,
It is indispensable to add a large amount of Al to prevent the oxidization of the melt on the plating bath surface and to prevent this.Therefore, various inconveniences such as impairment of adhesion and alloying are caused. there were. In addition, with respect to recent hot-dip galvanized steel materials, further improvement in corrosion resistance and, for example, imparting a property of suppressing plating film damage due to improvement in wear resistance of a plating layer, etc., have been desired.
【０００５】本発明の主たる目的は、耐食性および耐摩
耗性に優れた溶融亜鉛めっき鋼材を提供することにあ
る。本発明の他の目的は、Al, Mgの各組成を調整するこ
とによって浴成分の酸化を防止してめっき作業性を向上
させることにある。A main object of the present invention is to provide a hot-dip galvanized steel having excellent corrosion resistance and wear resistance. Another object of the present invention is to prevent the oxidation of bath components and improve the plating workability by adjusting the respective compositions of Al and Mg.
【０００６】[0006]
【課題を解決するための手段】上掲の各目的を実現する
ものとして本発明は、以下に掲げる課題解決手段を採用
する。 (1) Mg：0.1 〜3 wt％、Al：0.14〜5.0 wt％、Cu：0.5
〜3.0 wt％、Ni：0.2 〜0.8 wt％およびTi：0.05〜0.2
wt％を含み、かつMgとAlについては下記式の関係を満た
して含有し、さらに Ca, Be およびLiのうちから選ばれ
る１種または２種以上を 0.001〜0.01wt％含有し、残部
がZnからなるめっき層を、鋼材表面に有することを特徴
とする耐食性と耐摩耗性に優れた溶融亜鉛めっき鋼材。 記 0.04× Mg(wt％) ＋ 0.13 ≦ Al(wt％)The present invention employs the following means for achieving the above objects in order to achieve the above objects. (1) Mg: 0.1-3 wt%, Al: 0.14-5.0 wt%, Cu: 0.5
~ 3.0 wt%, Ni: 0.2 ~ 0.8 wt% and Ti: 0.05 ~ 0.2
wt.%, and Mg and Al are contained in a manner satisfying the following formula. Further, one or more selected from Ca, Be and Li are contained in 0.001 to 0.01 wt%, and the balance is Zn. A hot-dip galvanized steel excellent in corrosion resistance and abrasion resistance, characterized by having a plating layer made of steel on the surface of the steel. 0.04 x Mg (wt%) + 0.13 ≤ Al (wt%)
【０００７】(2) 上記のめっき層の化学組成は、Mg：0.
3 〜２wt％、Al：0.16〜4.5 wt％、Cu：0.7 〜1.2 wt
％、Ni：0.4 〜0.6 wt％、Ti：0.08〜0.15wt％およびC
a, BeおよびLiは 0.005〜0.01wt％にすることがより好
ましい。(2) The chemical composition of the plating layer is as follows:
3 to 2 wt%, Al: 0.16 to 4.5 wt%, Cu: 0.7 to 1.2 wt%
%, Ni: 0.4 to 0.6 wt%, Ti: 0.08 to 0.15 wt% and C
More preferably, a, Be and Li are set to 0.005 to 0.01% by weight.
【０００８】(3) 溶融亜鉛めっきを行う際に、被めっき
鋼材を、Mg：0.1 〜３wt％、Al：0.14〜5.0 wt％、Cu：
0.5 〜3.0 wt％、Ni：0.2 〜0.8 wt％およびTi：0.05〜
0.2 wt％を含むと共に、MgとAlについては下記式の関係
を満たして含有し、かつ Ca, Be およびLiのうちから選
ばれる１種または２種以上を 0.001〜0.01wt％含有し、
残部がZnからなる溶融亜鉛めっき浴にて溶融めっきする
ことを特徴とする耐食性と耐摩耗性に優れた溶融亜鉛め
っき鋼材の製造方法。 記 0.04× Mg(wt％) ＋ 0.13 ≦ Al(wt％)(3) When hot-dip galvanizing is performed, the steel to be plated is made of Mg: 0.1 to 3 wt%, Al: 0.14 to 5.0 wt%, Cu:
0.5 to 3.0 wt%, Ni: 0.2 to 0.8 wt% and Ti: 0.05 to
Containing 0.2 wt%, Mg and Al satisfying the relationship of the following formula, and contain 0.001 to 0.01 wt% of one or more selected from Ca, Be and Li;
A method for producing hot-dip galvanized steel having excellent corrosion resistance and wear resistance, characterized in that hot-dip galvanizing is performed in a hot-dip galvanizing bath made of Zn. 0.04 x Mg (wt%) + 0.13 ≤ Al (wt%)
【０００９】[0009]
【作用】本願発明の考え方の基本は、溶融亜鉛めっき浴
とそのめっき皮膜成分とを調整することにより、耐食性
と耐摩耗性とに優れた溶融亜鉛めっき鋼材を得ることに
ある。そのために本発明では、溶融亜鉛浴成分として、
まず所定量のMgを添加する。一般に、亜鉛中にMgを添加
すると耐食性が向上することは知られているが、めっき
浴の酸化が激しくなり、めっき作業を困難にすることも
既知である。このことに対して、本発明では、AlとCa,
BeおよびLiのうちから選ばれる１種以上の成分を複合添
加することにより、めっき浴の酸化を防止するようにし
た。とくに、Mg含有量とAl含有量との関係を明らかにし
て、酸化抑制剤としての有効なAlの添加量を設計した。
さらに、めっき膜の耐摩耗性向上のために、所定量のCu
を添加し、Zn−η相の硬度を上げることとし、さらには
Ni, Tiを複合添加してNi3Ti 等のNiTi化合物をめっき膜
中に分散させて硬度を上げることにより、耐摩耗性の向
上と、Zn−η相の腐食による損耗を減少させて、耐食性
の向上をも同時に向上させるようにした。The basic idea of the present invention is to obtain a hot-dip galvanized steel material having excellent corrosion resistance and wear resistance by adjusting a hot-dip galvanizing bath and its plating film components. Therefore, in the present invention, as a molten zinc bath component,
First, a predetermined amount of Mg is added. In general, it is known that the addition of Mg to zinc improves corrosion resistance, but it is also known that the oxidation of the plating bath becomes severe and makes the plating operation difficult. In contrast, in the present invention, Al and Ca,
Oxidation of the plating bath was prevented by adding one or more components selected from Be and Li in combination. In particular, the relationship between the Mg content and the Al content was clarified, and the effective amount of Al added as an oxidation inhibitor was designed.
Furthermore, in order to improve the wear resistance of the plating film, a predetermined amount of Cu
To increase the hardness of the Zn-η phase.
Ni, by increasing the hardness of the NiTi compound is dispersed in the plating film of Ni 3 Ti or the like by combined addition of Ti, and improvement of the wear resistance, to reduce the wear due to corrosion of the Zn-eta phase, corrosion resistance At the same time.
【００１０】このような着想の下に完成を見た本発明に
ついて、めっき浴成分組成, 即ち、溶融亜鉛めっき皮膜
の成分を上述のように限定した理由を以下に詳しく説明
する。 (1) めっき層, 浴中のMg：0.1 〜３wt％ めっき層, 浴中にMgを添加する理由は、耐食性の向上に
有効であり、その効果は0.1 wt％以上のMg添加によって
生ずる。一方、このMg添加量の増加に従って耐食性は向
上するものの、Zn−Mg系共晶点である３wt％を超えると
耐食性向上の効果が飽和するので、 0.1〜３wt％の範囲
に限定した。好ましい範囲は 0.3〜２wt％である。With respect to the present invention which has been completed under such an idea, the reason for limiting the composition of the plating bath components, that is, the components of the hot-dip galvanized film as described above, will be described in detail below. (1) Mg in the plating layer and bath: 0.1 to 3 wt% The reason for adding Mg to the plating layer and bath is effective in improving the corrosion resistance, and the effect is produced by adding 0.1 wt% or more of Mg. On the other hand, although the corrosion resistance is improved as the amount of Mg added increases, the effect of improving the corrosion resistance is saturated when the Zn-Mg eutectic point exceeds 3 wt%, so the range is limited to 0.1 to 3 wt%. The preferred range is 0.3 to 2% by weight.
【００１１】(2) めっき層, 浴中のAl：0.14〜5.0 wt％ めっき層, 浴中にAlを添加する理由は、めっき浴の酸化
防止のためである。そのAl濃度を0.14〜5.0 wt％とした
理由は、Ca, BeまたはLiのみの添加では、めっき浴の酸
化防止が十分でない。また、被めっき鋼材とめっき層と
のZn−Fe反応を防止するためには少なくとも0.14wt％以
上のAl添加が必要であり、一方、5.0 wt％を超えてこの
Alを添加しても、耐食性向上効果は飽和し、また、めっ
き浴中でのFe−Al系ドロスの生成が問題となるので、0.
14〜5.0 wt％に限定した。好ましい範囲は0.16〜4.5 wt
％である。(2) Al in plating layer and bath: 0.14 to 5.0 wt% The reason for adding Al to the plating layer and bath is to prevent oxidation of the plating bath. The reason for setting the Al concentration to 0.14 to 5.0 wt% is that the addition of only Ca, Be or Li does not sufficiently prevent oxidation of the plating bath. Also, in order to prevent the Zn-Fe reaction between the steel material to be plated and the plating layer, it is necessary to add at least 0.14 wt% of Al, while if it exceeds 5.0 wt%,
Even if Al is added, the corrosion resistance improving effect is saturated, and the generation of Fe-Al dross in the plating bath becomes a problem.
Limited to 14-5.0 wt%. The preferred range is 0.16-4.5 wt
%.
【００１２】(3) また、Al添加量とMg添加量との関係を
下記の式(1) のように規定する理由は、Ca, Be, Liとと
もに、この式(1) の関係を満たすAlを添加することによ
って、Mg添加によるめっき浴の酸化を防止できるためで
ある。 0.04× Mg(wt％) ＋ 0.13 ≦ Al(wt％) …(1)(3) The reason for defining the relationship between the added amount of Al and the added amount of Mg as in the following equation (1) is that, together with Ca, Be, and Li, This is because the addition of Mg can prevent the plating bath from being oxidized due to the addition of Mg. 0.04 x Mg (wt%) + 0.13 ≤ Al (wt%) ... (1)
【００１３】(4) めっき層中のCa, Be, Li：0.001 〜0.
01wt％ めっき層中にCa, BeおよびLiのうち少なくとも１種また
は２種以上を0.001 wt％以上含有させることとしたの
は、Mgを添加しためっき浴中にCa, Be, Liのうち少なく
とも１種を0.001 wt％以上添加することによって、Alの
添加と協働してめっき浴表面の酸化を防止することがで
きるからである。なお、この時製造される溶融めっき中
には、めっき浴中濃度とほぼ同等のCa, BeおよびLiを含
有する。一方、これらの元素を0.01wt％を超えて添加し
た場合には、Ca, Be, Liの偏析によって耐食性が劣化す
るので、0.001 〜0.01wt％に限定した。好ましい範囲は
0.005〜0.01wt％である。(4) Ca, Be, Li in the plating layer: 0.001-0.
01 wt% At least one or more of Ca, Be and Li are contained in the plating layer in an amount of 0.001 wt% or more because at least one of Ca, Be and Li is contained in the plating bath containing Mg. This is because by adding the seed in an amount of 0.001 wt% or more, oxidation of the plating bath surface can be prevented in cooperation with the addition of Al. In addition, the hot-dip plating produced at this time contains Ca, Be and Li which are almost equal to the concentration in the plating bath. On the other hand, when these elements are added in excess of 0.01 wt%, the corrosion resistance deteriorates due to the segregation of Ca, Be, and Li. Therefore, the content was limited to 0.001 to 0.01 wt%. The preferred range is
0.005 to 0.01 wt%.
【００１４】(5) めっき層, 浴中のCu： 0.5〜3.0 wt％ Cuは、Zn−η相の硬度を上昇させるために添加するが、
その含有量を 0.5〜3.0 wt％に規定した理由は、Cuによ
るめっき層の硬化作用は 0.5wt％以上の添加によって現
れること、一方、3.0 wt％を超えて添加した場合、融点
の急激な上昇を伴うので、めっき浴温度を上昇させなけ
ればならず、めっき浴の酸化、蒸発が激しくなるためで
ある。好ましい添加量の範囲は 0.7〜1.2 wt％である。(5) Cu in plating layer and bath: 0.5 to 3.0 wt% Cu is added to increase the hardness of the Zn-η phase.
The reason why the content is specified in the range of 0.5 to 3.0 wt% is that the hardening effect of the plating layer by Cu is manifested by the addition of 0.5 wt% or more, while the addition of more than 3.0 wt% causes a sharp rise in the melting point. Therefore, the temperature of the plating bath must be increased, and the oxidation and evaporation of the plating bath become severe. The preferred range of the amount added is 0.7 to 1.2 wt%.
【００１５】(6) めっき層, 浴中のNi：0.2 〜0.8 wt
％, Ti：0.05〜0.2 wt％ NiおよびTiを複合添加する理由は、Ni3Ti などの化合物
を形成させて硬度と耐摩耗性を向上させることにある
が、その添加量を、Ni：0.2 〜0.8 wt％、Ti：0.05〜0.
2 wt％に限定した理由は、耐食性, 耐摩耗性を向上させ
る, Ni, Ti化合物析出のためには、Ni 0.2wt％以上およ
びTi 0.05 wt％以上の添加が必要であり、一方、Ni 0.8
wt％およびTi 0.2wt％を超えて添加した場合には、Cuと
同様に融点の急激な上昇をともなって、めっき浴温度を
上昇させる必要が生じ、めっき浴の酸化、蒸発が激しく
なるためである。これらの好ましい添加量は、Ni 0.4〜
0.6wt％、Ti 0.08 〜0.15wt％の範囲である。(6) Ni in plating layer and bath: 0.2 to 0.8 wt
%, Ti: 0.05 to 0.2 wt% The reason for adding Ni and Ti in combination is to improve the hardness and wear resistance by forming a compound such as Ni 3 Ti. 0.8 wt%, Ti: 0.05-0.
The reason for limiting to 2 wt% is that corrosion resistance and abrasion resistance are improved, Ni and Ti compound precipitation requires addition of Ni 0.2 wt% or more and Ti 0.05 wt% or more, while Ni 0.8
If more than 0.2 wt% and 0.2 wt% of Ti are added, the melting temperature of the plating bath needs to be raised sharply as in the case of Cu, and it is necessary to raise the plating bath temperature, and the oxidation and evaporation of the plating bath become severe. is there. The preferable addition amount of these is from Ni 0.4 to
0.6 wt%, Ti 0.08 to 0.15 wt%.
【００１６】[0016]
【実施例】被めっき物として、Ｃ：0.002 wt％、Si：0.
01wt％、Mn：0.15wt％、Ｐ：0.013 wt％およびＳ：0.00
7 wt％を含有する冷延鋼板(100mm×200 mm×板厚0.75m
m)を用い、めっき前処理として有機溶媒、アルカリ電解
脱脂の後、15％Ｈ2 ＋Ｎ2雰囲気中で 820℃, 10sec
（昇温, 降温速度は10℃／sec)の焼鈍を行った後、実験
用溶融めっき装置によって、60ｇ／ｍ2 の溶融Znめっき
を行った。ただし、硬さ試験、耐摩耗性試験供試材とし
ては、300g／ｍ2 のものを準備した。[Example] C: 0.002 wt%, Si: 0.
01 wt%, Mn: 0.15 wt%, P: 0.013 wt% and S: 0.00
Cold rolled steel sheet containing 7 wt% (100 mm x 200 mm x 0.75 m
m), using an organic solvent and alkaline electrolytic degreasing as plating pretreatment, and then at 820 ° C. for 10 sec in a 15% H 2 + N 2 atmosphere.
After annealing at a rate of temperature rise and fall of 10 ° C./sec, hot-dip Zn plating of 60 g / m 2 was performed by an experimental hot-dip coating apparatus. However, 300 g / m 2 was prepared as a test material for a hardness test and a wear resistance test.
【００１７】上記のようにして得られためっき鋼材につ
いては、その耐食性をSST(塩水噴霧試験) 法に基づき40
日保持した後の赤錆発生および板重量の減少にて評価し
た。また、エポキシ系カチオン電着塗装後（20μｍ) 、
クロスカットを施し、SST 30日後クロスカット部の膨れ
幅を評価し、耐ブリスター性を評価した。また、めっき
層の硬度については、厚目付めっき材のめっき層表面の
ビッカース硬度を測定して評価し、耐摩耗性について
は、摩擦部の回転速度0.25ｍ／secの軟鋼製回転ディス
クに、荷重10Ｎ／mm2 で厚目付めっき試料を押しつけ、
摩擦距離 500ｍ経過後、めっき鋼板の板重量減にて評価
した。これらのめっき条件を表１に、そしてその性能試
験結果を表２に示す。With respect to the plated steel material obtained as described above, its corrosion resistance is determined based on the SST (salt water spray test) method.
Evaluation was made based on the occurrence of red rust and a decrease in the weight of the plate after holding for one day. Also, after epoxy-based cationic electrodeposition coating (20μm),
Cross cut was performed, and after 30 days from SST, the blister width of the cross cut portion was evaluated, and blister resistance was evaluated. The hardness of the plating layer was evaluated by measuring the Vickers hardness of the plating layer surface of the thick plating material, and the wear resistance was measured by applying a load to a mild steel rotating disk with a rotating speed of the friction part of 0.25 m / sec. pressing a thickness basis weight plating samples at 10 N / mm 2,
After a friction distance of 500 m passed, evaluation was made by weight reduction of the plated steel sheet. The plating conditions are shown in Table 1, and the performance test results are shown in Table 2.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【表２】 [Table 2]
【００２０】表１, ２に示す結果から明らかなように、
本発明に従って、溶融Znめっき浴中に、MgおよびAlを式
(1) の関係を満たして添加し、また、Cu, Ni, Tiを所定
量添加し、そして、Ca, Be, Liのうち少なくとも１種を
所定量添加した浴にて溶融亜鉛めっきを行った場合（N
o.1〜No.12)、めっき浴の酸化を防止することが可能で
あり、裸耐食性, 塗装後耐ブリスター性に優れ、従来の
Zn系溶融めっき( GI, GF, GI-F, GF-R) と比較して硬度
が高く、耐摩耗性に優れる亜鉛系溶融めっき鋼材を得る
ことができた。本発明による裸耐食性、耐ブリスター性
および耐摩耗性は、付着量20ｇ／m2以上で得られるが、
主として防錆性能の観点から30ｇ／m2以上が好ましい。
これに対し、比較例No.13 〜27として示すものでは、Al
無添加 (No.13 〜15)、および式(1) の関係を外れる多
量のAlを含有する(No.16〜19) の場合、いずれもめっき
が困難であり、また、Al≧５wt％も耐食性が悪い。この
耐食性は、Ca,Li, Beが0.01wt％よりも多いNo.21 〜23
も同じように悪い。さらに、Cu＜0.5 wt％のNo.24 、N
i, Tiの添加量が不足するNo.26 では耐摩耗性に劣り、
そしてCu＞５wt％のNo.25 、Ni, Tiの添加量の多いNo.2
7 ではめっき浴温度の上昇を招いてめっき処理が困難と
なった。As is clear from the results shown in Tables 1 and 2,
According to the present invention, in a hot-dip Zn plating bath, Mg and Al have the formula
(1) was added, a predetermined amount of Cu, Ni, Ti was added, and hot-dip galvanizing was performed in a bath in which at least one of Ca, Be, and Li was added in a predetermined amount. Case (N
o.1 ~ No.12), it is possible to prevent the oxidation of the plating bath, and it is excellent in bare corrosion resistance and blister resistance after painting.
Compared with Zn-based hot-dip coating (GI, GF, GI-F, GF-R), a zinc-based hot-dip coated steel material with higher hardness and excellent wear resistance was obtained. The bare corrosion resistance, blister resistance and abrasion resistance according to the present invention can be obtained with an adhesion amount of 20 g / m 2 or more.
It is preferably 30 g / m 2 or more mainly from the viewpoint of rust prevention performance.
On the other hand, in Comparative Examples Nos. 13 to 27, Al
In the case of no additive (Nos. 13 to 15) and a large amount of Al (No. 16 to 19) which deviates from the relation of the formula (1), plating is difficult, and Al ≧ 5 wt% Poor corrosion resistance. No. 21 to 23 in which the corrosion resistance is higher than 0.01 wt% in Ca, Li and Be.
Is just as bad. Furthermore, No. 24 with Cu <0.5 wt%, N
No. 26, in which the amounts of i and Ti added are insufficient, has poor wear resistance.
No. 25 with Cu> 5 wt%, and No. 2 with a large amount of Ni and Ti added
In the case of No. 7, the plating bath temperature was increased and the plating treatment became difficult.
【００２１】[0021]
【発明の効果】以上説明したように本発明によれば、高
耐食性, 高耐摩耗性の溶融亜鉛めっきを容易に製造する
ことができ、それ故に溶融亜鉛めっき鋼材の使用環境や
用途を一層拡大することができる。As described above, according to the present invention, hot-dip galvanized steel having high corrosion resistance and high wear resistance can be easily produced, and therefore the use environment and applications of hot-dip galvanized steel can be further expanded. can do.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 加藤 千昭 千葉県千葉市中央区川崎町１番地 川崎 製鉄株式会社鉄鋼開発・生産本部鉄鋼研 究所内 (72)発明者 望月 一雄 千葉県千葉市中央区川崎町１番地 川崎 製鉄株式会社鉄鋼開発・生産本部鉄鋼研 究所内 (56)参考文献 特開 平５−306445（ＪＰ，Ａ) 特開 平２−274851（ＪＰ，Ａ) 特開 昭62−142736（ＪＰ，Ａ) 特開 平４−2759（ＪＰ，Ａ) 特公 昭54−33223（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.7，ＤＢ名) C23C 2/00 - 2/40 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Chiaki Kato 1 Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture Inside the Steel Research Laboratory, Steel Development & Production Headquarters, Kawasaki Steel Corporation (72) Inventor Kazuo Mochizuki Chuo-ku, Chiba City, Chiba Prefecture 1 Kawasaki-cho Kawasaki Steel Corp. Steel Research Laboratory, Steel Development and Production Division (56) References JP-A-5-306445 (JP, A) JP-A-2-274851 (JP, A) JP-A-62-142736 (JP, A) JP-A-4-2759 (JP, A) JP-B-54-33223 (JP, B1) (58) Fields investigated (Int. Cl. 7 , DB name) C23C 2/00-2 / 40
Claims (2)
％、Cu：0.5 〜3.0 wt％、Ni：0.2 〜0.8 wt％およびT
i：0.05〜0.2 wt％を含み、かつMgとAlについては下記
式の関係を満たして含有し、さらに Ca, Be およびLiの
うちから選ばれる１種または２種以上を 0.001〜0.01wt
％含有し、残部がZnからなるめっき層を、鋼材表面に有
することを特徴とする耐食性と耐摩耗性に優れた溶融亜
鉛めっき鋼材。 記 0.04× Mg(wt％) ＋ 0.13 ≦ Al(wt％)(1) Mg: 0.1-3 wt%, Al: 0.14-5.0 wt
%, Cu: 0.5-3.0 wt%, Ni: 0.2-0.8 wt% and T
i: contains 0.05 to 0.2 wt%, and contains Mg and Al satisfying the relationship of the following formula, and further contains one or more selected from Ca, Be and Li in an amount of 0.001 to 0.01 wt.
A hot-dip galvanized steel material having excellent corrosion resistance and wear resistance, characterized in that the surface of the steel material has a plating layer containing Zn in the balance. 0.04 x Mg (wt%) + 0.13 ≤ Al (wt%)
材を、Mg：0.1 〜３wt％、Al：0.14〜5.0 wt％、Cu：0.
5 〜3.0 wt％、Ni：0.2 〜0.8 wt％およびTi：0.05〜0.
2 wt％を含むと共に、MgとAlについては下記式の関係を
満たして含有し、かつ Ca, Be およびLiのうちから選ば
れる１種または２種以上を 0.001〜0.01wt％含有し、残
部がZnからなる溶融亜鉛めっき浴にて溶融めっきするこ
とを特徴とする耐食性と耐摩耗性に優れた溶融亜鉛めっ
き鋼材の製造方法。 記 0.04× Mg(wt％) ＋ 0.13 ≦ Al(wt％)2. When hot-dip galvanizing is performed, the steel to be plated is made of 0.1 to 3% by weight of Mg, 0.14 to 5.0% by weight of Al, and 0.1 to 5% by weight of Cu.
5 to 3.0 wt%, Ni: 0.2 to 0.8 wt% and Ti: 0.05 to 0.
2 wt%, Mg and Al are contained in such a manner as to satisfy the following relationship, and one or more selected from Ca, Be and Li are contained in 0.001 to 0.01 wt%, and the balance is A method for producing hot-dip galvanized steel having excellent corrosion resistance and wear resistance, characterized by hot-dip galvanizing in a hot-dip galvanizing bath made of Zn. 0.04 x Mg (wt%) + 0.13 ≤ Al (wt%)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16837094A JP3357467B2 (en) | 1994-07-20 | 1994-07-20 | Hot-dip galvanized steel excellent in corrosion resistance and wear resistance and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16837094A JP3357467B2 (en) | 1994-07-20 | 1994-07-20 | Hot-dip galvanized steel excellent in corrosion resistance and wear resistance and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0835049A JPH0835049A (en) | 1996-02-06 |
| JP3357467B2 true JP3357467B2 (en) | 2002-12-16 |
Family
ID=15866841
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16837094A Expired - Lifetime JP3357467B2 (en) | 1994-07-20 | 1994-07-20 | Hot-dip galvanized steel excellent in corrosion resistance and wear resistance and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3357467B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998026103A1 (en) * | 1996-12-13 | 1998-06-18 | 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 |
| DE10039375A1 (en) * | 2000-08-11 | 2002-03-28 | Fraunhofer Ges Forschung | Corrosion-protected steel sheet and process for its manufacture |
| UA114578C2 (en) * | 2013-12-20 | 2017-06-26 | Арселорміттал | PROCESS FOR PRODUCING A ZnAlMg-COATED METAL SHEET WITH OPTIMIZED WIPING AND CORRESPONDING METAL SHEET |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433223B2 (en) * | 1973-12-15 | 1979-10-19 | ||
| JPS62142736A (en) * | 1985-12-18 | 1987-06-26 | Sadaji Nagabori | Zn alloy for hot dipping having high corrosion resistance, high workability, and high heat resistance |
| JPH02274851A (en) * | 1989-04-14 | 1990-11-09 | Nisso Kinzoku Kagaku Kk | Zinc alloy for hot dip plating |
| JPH042759A (en) * | 1990-04-19 | 1992-01-07 | Nippon Steel Corp | Production of galvannealed steel sheet and hot-dip galvanizing bath |
| JP2971243B2 (en) * | 1992-05-01 | 1999-11-02 | 新日本製鐵株式会社 | Method for producing high strength galvannealed steel sheet containing P |
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1994
- 1994-07-20 JP JP16837094A patent/JP3357467B2/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| JPH0835049A (en) | 1996-02-06 |
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