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1. 发明专利

JP2012251247A Method for producing resin-coated steel sheet 有权
标题翻译：生产树脂涂层钢板的方法
公开(公告)号：JP2012251247A
公开(公告)日：2012-12-20
申请号：JP2012179907
申请日：2012-08-14
申请人： Jfe Galvanizing & Coating Co Ltd , Jfe鋼板株式会社 , Jfe Steel Corp , Jfeスチール株式会社
发明人： TAKAMURA HIDEO , FURUYA YOSHITO , FURUTA AKIHIKO , OGISHI HIDEO , SATO SUSUMU , UMEBAYASHI RIE , ANDO SATOSHI , TAKANO SHIGERU
IPC分类号： C23C2/26 , B32B15/08 , C22C18/04 , C23C2/06 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a resin-coated steel sheet having excellent surface appearance.SOLUTION: In the method for producing a resin-coated steel sheet, a hot dip Zn-Al based alloy plated layer is formed on the surface of a steel sheet by dipping the steel sheet in a hot dip Zn-Al based alloy plating bath, then removing the steel sheet from the plating bath, and cooling the same, and resin coating is performed after performing chemical conversion treatment of the hot dip Zn-Al based alloy plated steel sheet. The cooling rate of the steel sheet removed from the plating bath to 250°C is 1-15°C/s, and the hot dip Zn-Al based alloy plated layer contains 1.0-10 mass% of Al, 0.2-1.0 mass% of Mg, and 0.005-0.1 mass% of Ni with the balance comprising Zn and unavoidable impurities.
摘要翻译：待解决的问题：提供一种具有优异表面外观的树脂涂覆钢板的制造方法。解决方案：在树脂涂覆钢板的制造方法中，通过将钢板浸渍在热浸镀Zn-Al系合金中，在钢板表面上形成热浸镀Zn-Al系合金镀层电镀浴，然后从镀浴中除去钢板，并对其进行冷却，并且在进行热浸镀Zn-Al系合金镀覆钢板的化学转化处理之后进行树脂涂层。从镀浴中除去的钢板的冷却速度为1-15℃/ s，热浸镀Zn-Al系合金镀层含有1.0〜10质量％的Al，0.2〜1.0质量％的Mg，0.005〜0.1质量％的Ni，余量由Zn和不可避免的杂质构成。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2012251246A HOT DIP Zn-Al BASED ALLOY PLATED STEEL SHEET 有权
标题翻译：热镀锌合金镀锌钢板
公开(公告)号：JP2012251246A
公开(公告)日：2012-12-20
申请号：JP2012179902
申请日：2012-08-14
申请人： Jfe Galvanizing & Coating Co Ltd , Jfe鋼板株式会社 , Jfe Steel Corp , Jfeスチール株式会社
发明人： TAKAMURA HIDEO , FURUTA AKIHIKO , FURUYA YOSHITO , OGISHI HIDEO , SATO SUSUMU , UMEBAYASHI RIE , ANDO SATOSHI , TAKANO SHIGERU
IPC分类号： C23C2/06 , C22C18/04
CPC分类号： C23C2/06 , Y10T428/12799
摘要： PROBLEM TO BE SOLVED: To provide a hot dip Zn-Al based alloy plated steel sheet that has beautiful plating appearance with metallic luster having no spangle or very fine spangles formed and excellent blackening resistance.SOLUTION: The hot dip Zn-Al based alloy plated steel sheet includes a hot dip Zn-Al based alloy plated layer that contains 1.0-10 mass% of Al, 0.2-1.0 mass% of Mg, and 0.005-0.1 mass% of Ni with the balance comprising Zn and unavoidable impurities on at least one surface of the steel sheet, wherein the hot dip Zn-Al based alloy plated layer contains two-component eutectic of Zn-Al and three-component eutectic of an Al-Zn-Mg intermetallic compound.
摘要翻译：要解决的问题：提供一种具有美观的电镀外观的热浸Zn-Al合金镀覆钢板，其金属光泽没有形成或非常细的轮廓形成并具有优异的耐黑变性。热镀Zn-Al系合金镀覆钢板包括含有1.0-10质量％的Al，0.2〜1.0质量％的Mg和0.005〜0.1质量％的热浸镀Zn-Al系合金镀层在钢板的至少一个表面上余量包含Zn和不可避免的杂质的Ni的％，其中热浸Zn-Al系合金镀层含有Zn-Al的双组分共晶体和Al- Zn-Mg金属间化合物。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2009132952A SURFACE-TREATED, HOT-DIP Zn-Al-BASED ALLOY PLATED STEEL SHEET 有权
标题翻译：表面处理，热镀锌合金镀锌钢板
公开(公告)号：JP2009132952A
公开(公告)日：2009-06-18
申请号：JP2007308117
申请日：2007-11-29
申请人： Jfe Galvanizing & Coating Co Ltd , Jfe Steel Corp , Jfeスチール株式会社 , Jfe鋼板株式会社 , Kansai Paint Co Ltd , 関西ペイント株式会社
发明人： UMEBAYASHI RIE , FUJIBAYASHI NOBUE , ANDO SATOSHI , MATSUZAKI AKIRA , IMOKAWA TORU , NAKANO TAKASHI , URUSHIMA HIDETO , AKUI JUN , TAKAMURA HIDEO
IPC分类号： C23C22/44 , B32B15/08 , C23C2/06 , C23C22/34 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a chromium-free surface-treated, hot-dip Zn-Al-based alloy plated steel sheet which has excellent corrosion resistance, blackening resistance and adhesiveness to paint, and is also excellent in the external appearance of the plated surface. SOLUTION: The hot-dip Zn-Al-based alloy plated steel sheet has a hot-dip Zn-Al-based alloy plated layer which contains 1.0 to 10% Al, 0.2 to 1.0% Mg and 0.005 to 0.1% Ni. The surface-treated steel sheet is produced by forming a film on the surface of the plated steel sheet with the use of a treatment composition which contains a particular aqueous solution containing titanium, a nickel compound and/or a cobalt compound, a fluorine-containing compound and a water-soluble organic resin, at a predetermined ratio. The steel sheet can acquire excellent blackening resistance due to the Ni and/or Co component contained in the film and the optimized composition of the plated layer; further acquire excellent corrosion resistance because the fluorine-containing compound in the treatment composition enhances its reactivity to form a dense reaction layer on the surface of the plated layer, and because the film itself imparts higher barrier properties to the steel sheet; and moreover acquire excellent adhesiveness to paint due to the water-soluble organic resin in the treatment composition. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的耐腐蚀性，耐黑变性和对涂料的粘附性的无铬表面处理的热浸Zn-Al系合金镀层钢板，并且外部也是优异的电镀表面的外观。热镀Zn-Al系合金镀层钢板具有热浸镀Zn-Al系合金镀层，其含有1.0〜10％的Al，0.2〜1.0％的Mg和0.005〜0.1％的Ni 。表面处理钢板通过使用包含特定的钛，镍化合物和/或钴化合物的水溶液的处理组合物在镀覆钢板的表面上形成膜来制造，含氟化合物和水溶性有机树脂。钢板可以由于膜中所含的Ni和/或Co成分和镀层的优化组成而获得优异的耐黑变性; 进一步获得优异的耐腐蚀性，因为处理组合物中的含氟化合物增强了其在镀层表面上形成致密反应层的反应性，并且因为膜本身对钢板赋予更高的阻隔性; 并且还由于处理组合物中的水溶性有机树脂而获得对涂料的优异的粘附性。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2009114512A Resin-coated steel sheet and its manufacturing method 有权
标题翻译：树脂涂层钢板及其制造方法
公开(公告)号：JP2009114512A
公开(公告)日：2009-05-28
申请号：JP2007290191
申请日：2007-11-07
申请人： Jfe Galvanizing & Coating Co Ltd , Jfe Steel Corp , Jfeスチール株式会社 , Jfe鋼板株式会社
发明人： TAKAMURA HIDEO , FURUYA YOSHITO , FURUTA AKIHIKO , OGISHI HIDEO , SATO SUSUMU , UMEBAYASHI RIE , ANDO SATOSHI , TAKANO SHIGERU
IPC分类号： C23C2/06 , B05D7/14 , B32B15/08 , C22C18/04 , C23C2/26 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a resin-coated steel sheet having an excellent surface appearance, and a method for manufacturing the same. SOLUTION: The hot dip Zn-Al-based alloy-plated steel sheet constituting the resin-coated steel sheet has a hot dip Zn-Al-based alloy plating layer containing 1.0 to 10 mass% Al, 0.2 to 1.0 mass% Mg, 0.005 to 0.1 mass% Ni, and consisting of the balance Zn and inevitable impurities on at least one surface of the steel sheet. In the manufacturing method, the cooling rate down to 250°C of the steel sheet pulled up from a hot dip Zn-Al-based alloy plating bath is held at 1 to 15°C/second when the steel sheet is pulled up from the plating bath and is cooled. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异表面外观的树脂涂覆钢板及其制造方法。＆lt;解决方案＆gt;构成树脂被覆钢板的热浸Zn-Al系合金镀覆钢板具有含有1.0〜10质量％的Al，0.2〜1.0质量％的Al-Zn-Al系合金镀层， Mg，0.005〜0.1质量％的Ni，并且在钢板的至少一个表面上由余量的Zn和不可避免的杂质构成。在制造方法中，将钢板从热浸镀Zn-Al系合金镀浴中拉出的钢板的冷却速度保持在1〜15℃/秒，电镀浴并冷却。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008138285A HOT-DIP Zn-Al ALLOY COATED STEEL SHEET AND MANUFACTURING METHOD FOR THE SAME 有权
标题翻译： HOT-DIP Zn-Al合金涂层钢板及其制造方法
公开(公告)号：JP2008138285A
公开(公告)日：2008-06-19
申请号：JP2007290182
申请日：2007-11-07
申请人： Jfe Galvanizing & Coating Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , Jfe鋼板株式会社
发明人： TAKAMURA HIDEO , FURUTA AKIHIKO , FURUYA YOSHITO , OGISHI HIDEO , SATO SUSUMU , UMEBAYASHI RIE , ANDO SATOSHI , TAKANO SHIGERU
IPC分类号： C23C2/06 , C22C18/04 , C23C2/40
CPC分类号： C23C2/06 , Y10T428/12799
摘要： PROBLEM TO BE SOLVED: To provide a hot-dip Zn-Al alloy coated steel sheet which has a beautiful metallic-luster coated appearance either free from spangles or with extreme fine spangles and is excellent in blackening resistance, and its manufacturing method. SOLUTION: The hot-dip Zn-Al alloy coated steel sheet has on at least one side thereof a hot-dip coating layer made of a hot-dip Zn-Al alloy which contains 1.0-10 mass% of Al, 0.2-1.0 mass% of Mg, and 0.005-0.1 mass% of Ni with the balance being Zn and unavoidable impurities. The manufacturing method comprises dipping a steel sheet into a Zn-Al alloy hot-dip plating bath and lifting up the sheet from the bath to cool it, wherein a cooling rate of the steel sheet lifted up from the bath is set to 1-15°C/second until it reaches 250°C. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有美丽的金属光泽涂层外观的热浸镀Zn-Al合金涂层钢板，其外观为无棱角或极细的矩形，并且耐黑变性优异，且其制造方法。解决方案：热浸镀Zn-Al合金涂层钢板的至少一侧具有由热浸镀Zn-Al合金制成的热浸镀层，其含有1.0-10质量％的Al，0.2 -1.0质量％的Mg和0.005〜0.1质量％的Ni，余量为Zn和不可避免的杂质。制造方法包括将钢板浸渍在Zn-Al合金热浸镀液中，并从浴中提起薄片以使其冷却，其中从浴中提升的钢板的冷却速度设定为1-15 °C /秒，直至达到250°C。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008291350A SURFACE-TREATED, HOT-DIP Zn-Al BASED ALLOY COATED STEEL SHEET 有权
标题翻译：表面处理，热镀Zn-Al基合金涂层钢板
公开(公告)号：JP2008291350A
公开(公告)日：2008-12-04
申请号：JP2008102943
申请日：2008-04-10
申请人： Jfe Galvanizing & Coating Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , Jfe鋼板株式会社 , Kansai Paint Co Ltd , 関西ペイント株式会社
发明人： UMEBAYASHI RIE , FUJIBAYASHI NOBUE , ANDO SATOSHI , MATSUZAKI AKIRA , IMOKAWA TORU , NAKANO TAKASHI , AKUI JUN , NITTA SHINICHIRO , TAKAMURA HIDEO
IPC分类号： C23C22/44 , B32B15/08 , C23C2/06 , C23C2/26 , C23C22/34 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a chromium-free surface treated, hot-dip Zn-Al alloy coated steel sheet which has excellent corrosion resistance and blackening resistance and is excellent in the surface appearance of plating. SOLUTION: According to the invention, a steel sheet which has on the surface a hot-dip Zn-Al alloy plating layer containing Al: 1.0 to 10%, Mg: 0.2 to 1.0% and Ni: 0.005 to 0.1% is surface-treated with a surface treatment composition containing a specific titanium-containing aqueous solution, a nickel compound and/or a cobalt compound, and a fluorine-containing compound at a specific ratio to form a surface treatment film on the surface. Excellent blackening resistance is attained by virtue of the Ni and/or Co component contained in the surface treatment film and the optimized plating composition. Further, the surface treatment composition exhibits enhanced reactivity by virtue of the fluorine-containing compound to form a dense reaction layer on the surface of the plating and the fluorine-containing compound imparts higher barrier properties to the surface treatment film itself, which makes it possible to attain excellent corrosion resistance. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供耐蚀性和耐黑变性优异且镀层表面外观优异的无铬表面处理的热浸Zn-Al合金涂层钢板。解决方案：根据本发明，在表面具有含有Al：1.0〜10％，Mg：0.2〜1.0％，Ni：0.005〜0.1％的热浸镀Zn-Al合金镀层的钢板是用含有特定含钛水溶液，镍化合物和/或钴化合物的表面处理组合物和含氟化合物以特定比例进行表面处理，以在表面上形成表面处理膜。凭借表面处理膜中所含的Ni和/或Co成分和优化的电镀组合物，可以获得优异的耐黑变性。此外，表面处理组合物由于含氟化合物表现出增强的反应性，在镀层的表面上形成致密的反应层，并且含氟化合物赋予表面处理膜本身更高的阻隔性，这使得它成为可能以获得优异的耐腐蚀性。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2009131987A Precoated steel sheet 审中-公开
标题翻译：预制钢板
公开(公告)号：JP2009131987A
公开(公告)日：2009-06-18
申请号：JP2007308460
申请日：2007-11-29
申请人： Jfe Galvanizing & Coating Co Ltd , Jfe鋼板株式会社
发明人： OKUMA TOSHIYUKI , TAKAMURA HIDEO , FURUTA AKIHIKO , SATO SUSUMU
IPC分类号： B32B15/08 , B05D7/14 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a precoated steel sheet having excellent appearance and workability, excellent in weatherability, and capable of hardly deteriorating beautiful appearance. SOLUTION: This precoated steel sheet has a chemical-treated coating film at least on one side face of a zinc-plated steel sheet, and a resin coating film formed thereon, and the resin coating film is formed with a primer layer A comprising a thermoplastic resin containing a rust preservative pigment, a colored resin layer B formed on the primer layer A, a clear coating film layer C formed on the colored resin layer B, containing a silica compound as a main component, and having 0.2 μm or more of film thickness, and a clear coating film layer D coated, on the clear coating film layer C, with a film containing a titanium oxide particle having photocatalytic activity island-likely at 40-95% of area ratio. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的外观和可加工性，耐候性优异并且几乎不能使外观美观的预涂钢板。解决方案：该预涂钢板在镀锌钢板的至少一个侧面上具有化学处理的涂膜，并且在其上形成树脂涂膜，并且树脂涂膜形成有底漆层A 包含含有防锈颜料的热塑性树脂，在底漆层A上形成的着色树脂层B，形成在着色树脂层B上的含有二氧化硅化合物作为主要成分的透明涂膜层C，并且具有0.2μm或在透明涂膜层C上涂覆透明涂膜层D，其中膜含有具有光催化活性的氧化钛颗粒，可能的面积比为40-95％。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2009131960A Precoated steel sheet 有权
标题翻译：预制钢板
公开(公告)号：JP2009131960A
公开(公告)日：2009-06-18
申请号：JP2007302914
申请日：2007-11-22
申请人： Jfe Galvanizing & Coating Co Ltd , Jfe鋼板株式会社
发明人： OKUMA TOSHIYUKI , TAKAMURA HIDEO , FURUTA AKIHIKO , SATO SUSUMU
IPC分类号： B32B15/08 , C09D5/00 , C09D5/08 , C09D127/16 , C09D133/00 , C09D183/04 , C09D183/10 , C09D201/00 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To provide a precoated steel sheet excellent in various characteristics such as high weatherability, beautiful appearance resistance, and degradation resistance performance against a photocatalyst, in addition to performances such as appearance uniformity and workability, by forming a colored resin layer via a primer layer, and by laminating two kinds of prescribed clear coating film layers on the colored resin layer. SOLUTION: This precoated steel sheet has a chemical-treated coating film at least on one side face of a zinc-plated steel sheet, and a resin coating film formed thereon, and the resin coating film includes the primer layer A comprising a thermoplastic resin containing a rust preservative pigment, the colored resin layer B, the clear coating film layer C containing a silica compound as a main component, and having 0.2 μm or more of film thickness, and the clear coating film layer D containing a titanium oxide particle having photocatalytic activity, of which the deposition amount per one side face is 10-2,000 mg/m 2 in terms of TiO 2 . COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供除了诸如外观均匀性和加工性的性能之外，还具有耐光泽性，耐光泽性，耐光老化性等各种特性优异的预涂钢板，通过形成有色树脂层，通过在着色树脂层上层叠两种规定的透明涂膜层。解决方案：该预涂钢板在镀锌钢板的至少一个侧面上具有化学处理的涂膜，在其上形成树脂涂膜，树脂涂膜包括底漆层A，其包含：含有防锈颜料的热塑性树脂，着色树脂层B，含有二氧化硅化合物作为主要成分的透明涂膜层C，膜厚度为0.2μm以上，透明涂膜层D含有氧化钛具有光催化活性的颗粒，其中每一面的沉积量以TiO 2 SB 2为基准为10-2000mg / m 2 SP / 2。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2007284718A Zn-Al ALLOY HOT-DIP PLATED STEEL SHEET SUPERIOR IN CORROSION RESISTANCE AND WORKABILITY, AND PRODUCTION METHOD THEREFOR 有权
标题翻译： Zn-Al合金热镀锌钢板耐腐蚀性和耐磨性及其生产方法
公开(公告)号：JP2007284718A
公开(公告)日：2007-11-01
申请号：JP2006110961
申请日：2006-04-13
申请人： Jfe Galvanizing & Coating Co Ltd , Jfe鋼板株式会社
发明人： TAKAMURA HIDEO , OGISHI HIDEO , ISHIKAWA HIROSHI
IPC分类号： C23C2/06 , C21D9/46 , C22C18/04 , C22C21/10 , C23C2/26 , C23C2/28
摘要： PROBLEM TO BE SOLVED: To provide a Zn-Al alloy hot-dip plated steel sheet superior in corrosion resistance, workability, further appearance after having been plated and spot weldability, and to provide a production method therefor.
SOLUTION: A plating bath has a composition adjusted so as to give the plated layer a composition, by average mass%, 25 to 70% Al, 0.5 to 5% Mg, 0.1 to 5% Si, 0.005×(Si%) to 0.05×(Si%)% Sr, or further 0.02 to 2% Cr, 0.02 to 2% Ni, and the balance Zn with unavoidable impurities. A method for forming the hot-dip plated Zn-Al alloy layer on the surface of a steel sheet comprises the steps of: dipping the steel sheet in the above plating bath; raising it up from the plating bath; and cooling it at a cooling rate of 10 to 100°C/s until the steel sheet reaches 350°C. The method may further comprises: temper-rolling the steel sheet at a rolling reduction of 0.5 to 5%; and overaging it at 150 to 350°C. Thereby produced Zn-Al alloy hot-dip plated steel acquires superior corrosion resistance, workability, further appearance after having been plated, and spot weldability.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种耐蚀性，可加工性，镀层后的外观和点焊性优异的Zn-Al合金热镀钢板，并提供其制造方法。解决方案：电镀液的组成调整为使镀层平均质量％为25〜70％Al，0.5〜5％Mg，0.1〜5％Si，0.005×（Si％）至0.05×（Si％）％Sr，或进一步0.02〜2％的Cr，0.02〜2％的Ni，余量为Zn为不可避免的杂质。在钢板表面上形成热浸镀Zn-Al合金层的方法包括以下步骤：将钢板浸渍在上述镀浴中; 从镀浴中提起; 并以10〜100℃/ s的冷却速度进行冷却，直到钢板达到350℃。该方法还可以包括：以0.5〜5％的压下率来对钢板进行回火处理; 并在150至350℃下进行超量化。由此制造的Zn-Al合金热浸镀钢获得了优异的耐腐蚀性，可加工性，电镀后的外观以及点焊性。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2006219716A HOT DIP Zn-Al BASED ALLOY PLATED STEEL SHEET AND ITS PRODUCTION METHOD 审中-公开
标题翻译：热镀锌锌合金镀锌钢板及其生产方法
公开(公告)号：JP2006219716A
公开(公告)日：2006-08-24
申请号：JP2005033266
申请日：2005-02-09
申请人： Jfe Galvanizing & Coating Co Ltd , Jfe鋼板株式会社
发明人： TAKAMURA HIDEO , OGISHI HIDEO , ISHIKAWA HIROSHI
IPC分类号： C23C2/06 , C22C18/04 , C22C21/10
摘要： PROBLEM TO BE SOLVED: To provide a hot dip Zn-Al based alloy plated steel sheet having excellent workability, appearance after coating, blackening resistance, spot weldability, cut edge face rusting resistance and edge creep resistance, and to provide its production method.
SOLUTION: In contact with the surface of the steel sheet, a first plating layer having a composition comprising, by mass, 25 to 75% Al and 0.1 to 5% Si, and the balance Zn with inevitable impurities, and a second plating layer as the upper layer of the first plating layer whose composition is different from that of the first plating layer, and comprising, by mass, 0.10 to 10% Al, and the balance Zn with inevitable impurities are formed. The first plating layer can comprise one or more kinds selected from Sr, Cr and Ti as well. Further, the second plating layer can comprise one or more kinds selected from Y, La, Ce and Nd, and/or one or two kinds selected from Mg and Si. For improving the adhesion between the plating layers, it is preferable that, after the completion in the solidification of the first plating layer, preheating is performed, or, before the completion in the solidification of the first plating layer, the second plating layer is formed.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异的可加工性，涂装后的外观，耐黑变性，点焊性，切边面防锈性和边缘抗蠕变性的热浸Zn-Al系合金镀覆钢板，并提供其生产方法。解决方案：与钢板的表面接触，具有质量为25〜75％的Al和0.1〜5％Si，余量为Zn和不可避免的杂质的第一镀层，第二镀层电镀层作为与第一镀层的组成不同的第一镀层的上层，并且以质量计含有0.10〜10％的Al，余量为Zn和不可避免的杂质。第一镀层也可以包含选自Sr，Cr和Ti中的一种或多种。此外，第二镀层可以包含选自Y，La，Ce和Nd中的一种或多种，和/或选自Mg和Si中的一种或两种。为了提高镀层之间的粘附性，优选在第一镀层的凝固完成后进行预热，或者在第一镀层的凝固完成之前，形成第二镀层。版权所有（C）2006，JPO＆NCIPI

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