Surface treated steel sheet and method for production thereof
    1.
    发明授权
    Surface treated steel sheet and method for production thereof 失效
    表面处理钢板及其制造方法

    公开(公告)号:US06555249B1

    公开(公告)日:2003-04-29

    申请号:US09856053

    申请日:2001-05-17

    IPC分类号: B32B1518

    摘要: The coated steel sheet includes a zinc phosphate coating containing Mg on a surface of a galvanized steel sheet, and an orthophosphoric acid ester-containing coating on a surface of the zinc phosphate coating. The coated steel sheet has no coating fall-off even during a chemical conversion treatment step of an automobile producing line and has excellent perforative corrosion resistance either with no-painting or after electrodeposition painting, chemical conversion treatability and press formability.

    摘要翻译: 涂覆钢板包括在镀锌钢板的表面上含有Mg的磷酸锌涂层和在磷酸锌涂层的表面上的含正磷酸酯的涂层。 即使在汽车生产线的化学转化处理步骤中,涂覆钢板也没有涂层脱落,并且具有优异的耐喷涂性或电沉积涂漆,化学转化处理性和冲压成型性的耐穿透性。

    Perforative corrosion resistant galvanized steel sheet
    2.
    发明授权
    Perforative corrosion resistant galvanized steel sheet 失效
    耐腐蚀镀锌钢板

    公开(公告)号:US06322906B1

    公开(公告)日:2001-11-27

    申请号:US09611723

    申请日:2000-07-06

    IPC分类号: B32B1500

    摘要: A galvanized steel sheet includes a galvanized coating layer having a coating weight of from about 20 to about 60 g/m2 formed on at least one surface of the steel sheet, and a zinc phosphate coating layer having a coating weight of from about 0.5 to about 3.0 g/m2 formed on the galvanized coating layer. The zinc phosphate coating layer contains from about 0.5 to about 10.0 percent by weight of magnesium, from about 0.1 to about 2.0 percent by weight of nickel, and from about 0.5 to about 8.0 percent by weight of manganese. However, the manganese content and the nickel content satisfy the following relationship: [Ni]×7.6−10.9≦[Mn]≦[Ni]×11.4 wherein [Mn] represents the manganese content, in percent by weight, and [Ni] represents the nickel content, in percent by weight. This steel sheet exhibits superior perforative corrosion resistance. The steel sheet also exhibits superior press workability by further controlling the magnesium, nickel, and manganese contents.

    摘要翻译: 镀锌钢板包括在钢板的至少一个表面上形成的涂层重量为约20至约60g / m2的镀锌涂层,以及涂覆重量为约0.5至约 在镀锌层上形成3.0g / m2。 磷酸锌涂层含有约0.5至约10.0重量%的镁,约0.1至约2.0重量%的镍和约0.5至约8.0重量%的锰。 然而,锰含量和镍含量满足以下关系:[Ni] x7.6-10.9 [= [Mn]≤= [Ni] x11.4其中[Mn]表示锰含量,以重量%计, [Ni]表示镍含量,以重量%计。 该钢板表现出优异的耐穿孔性。 通过进一步控制镁,镍和锰的含量,钢板也表现出优异的冲压加工性。

    Organic coated material having an electrolytically polymerized coating
film containing chromium and method
    3.
    发明授权
    Organic coated material having an electrolytically polymerized coating film containing chromium and method 失效
    具有含铬电解聚合涂膜的有机涂层材料及方法

    公开(公告)号:US5997714A

    公开(公告)日:1999-12-07

    申请号:US739943

    申请日:1996-10-30

    CPC分类号: C25D11/38 C09D5/4476

    摘要: The invention provides a material coated with an organic film which exhibits excellent corrosion resistance and lacquer adhesion. The invention includes an electroconductive substrate coated with an electrolytically polymerized coating film containing chromium. Particularly, a zinc-type plated steel sheet coated with an electrolytically polymerized coating film containing chromium in accordance with the invention is well suited for application in vehicle bodies. The invention further provides a method of making a material coated with an organic film which involves forming organic coating material containing chromium on an electroconductive substrate acting as an electrode by electrolytically polymerizing an organic monomer in an electrolyte solution containing chromium. The method provides a monolithic composite structure comprising chromium compounds and an organic coating film, and avoid the problems associated with passivation after chromium plating of steel. The method of the invention can also reduce processing by two-thirds in relation to conventional methods.

    摘要翻译: 本发明提供涂覆有有机膜的材料,其表现出优异的耐腐蚀性和漆粘附性。 本发明包括涂覆有包含铬的电解聚合涂膜的导电基材。 特别地,根据本发明涂覆有含铬的电解聚合涂膜的锌电镀钢板非常适用于车体。 本发明还提供一种制造涂覆有机膜的材料的方法,该方法涉及通过在含铬的电解液中电解聚合有机单体,在作为电极的导电性基体上形成含有铬的有机涂层材料。 该方法提供了包含铬化合物和有机涂膜的整体复合结构,并避免了镀铬后钝化相关的问题。 本发明的方法还可以将传统方法的处理减少三分之二。

    Surface treated tin-plated steel sheet and surface treatment solution
    4.
    发明授权
    Surface treated tin-plated steel sheet and surface treatment solution 有权
    表面处理镀锡钢板和表面处理液

    公开(公告)号:US06673470B2

    公开(公告)日:2004-01-06

    申请号:US10169563

    申请日:2002-07-08

    IPC分类号: B32B1500

    摘要: A surface treated tin-plated steel sheet which has an alloy layer formed on the surface of a steel sheet, a tin plating layer being formed on said alloy layer with a remaining exposed portion of the alloy layer having an area of 30% or more of that of the alloy layer and, formed on said tin plating layer and said exposed portion of the alloy layer, a coating film containing P and Si in an amount of 0.5 to 100 mg/m2 and 0.1 to 250 mg/m2, respectively; and a chemical treatment solution for use in preparing the steel sheet which comprises a phosphate ion, a tin ion and a silane coupling agent and has a pH of 1.5 to 5.5. The surface treated tin-plated steel sheet is free from chromium which causes problems from an environmental view point, and also is excellent in adhesion with a paint, corrosion resistance after being coated, rust resistance, and formability.

    摘要翻译: 一种表面处理的镀锡钢板,其具有形成在钢板表面上的合金层,镀锡层形成在所述合金层上,剩余的合金层的暴露部分的面积为30%以上的面积 在合金层的所述锡镀层和所述暴露部分上形成含有0.5〜100mg / m 2和0.1〜250mg / m 2的P和Si的涂膜, 以及用于制备含有磷酸根离子,锡离子和硅烷偶联剂的钢板的化学处理溶液,其pH为1.5〜5.5。 经表面处理的镀锡钢板不含铬,从环境角度出现问题,并且与涂料的粘合性优异,涂布后的耐腐蚀性,耐锈性和成形性也优异。

    Process for the manufacture of tinplate using a fused tin chloride
electroplating bath
    7.
    发明授权
    Process for the manufacture of tinplate using a fused tin chloride electroplating bath 失效
    使用熔融氯化锡电镀浴制造马口铁的工艺

    公开(公告)号:US5403468A

    公开(公告)日:1995-04-04

    申请号:US850454

    申请日:1992-03-10

    IPC分类号: C25D3/66 C25D7/06

    CPC分类号: C25D3/66

    摘要: A process for the manufacture of tinplates comprising electroplating a substrate in a fused-chloride tin plating bath at a temperature of about 150.degree. to 350.degree. C., a current density of about 100 to 500 A/dm.sup.2 in an atmosphere of a non-oxidizing gas. This process may be converted to a process for the manufacture of reflow type tinplates by only changing the bath temperature, and vice versa. For the manufacture of no-reflow type tinplates, the bath is kept at 150.degree. to 232.degree. C., while for the manufacture of reflow type tinplates, the bath is kept at 233.degree. to 350.degree. C. In these cases, the bath includes SnCl.sub.2 and at least one member selected from the group consisting of KCl, NaCl, LiCl and AlCl.sub.3, and may preferably be operated while flowing the bath at a flow rate of about 0.1 m/sec higher. There is provided equipment for the manufacture of tin-plated steel strip comprising a pretreating apparatus for cold rolling steel strip, an annealing apparatus, a skin pass rolling apparatus, a fused-salt tin-electroplating apparatus with the above bath including chlorides, and an aftertreating apparatus, these apparatus being continuously integrated into the equipment by use of a fused-salt bath.

    摘要翻译: 一种用于制造镀锡板的方法,包括在熔融氯化锡镀浴中在约150℃至350℃的温度下电镀底物,在非气溶胶的气氛中电流密度为约100至500A / dm 2, 氧化气体。 该方法可以通过仅改变浴温度而转化为制造回流型锡板的方法,反之亦然。 对于无回流型锡板的制造,将浴保持在150℃至232℃,而为了制造回流型锡板,将浴保持在233℃至350℃。在这些情况下,浴 包括SnCl 2和选自KCl,NaCl,LiCl和AlCl 3中的至少一种,并且优选在以约0.1m /秒的流速流动浴的情况下操作。 提供了一种用于制造镀锡钢带的设备,其包括用于冷轧钢带的预处理装置,退火装置,皮肤通过轧制装置,具有上述浴的熔融盐电镀装置,包括氯化物,以及 后处理装置,这些装置通过使用熔盐浴连续地集成到设备中。

    Method of producing a steel sheet plated with Zn-Mg alloy superior both
in plating adhesion and corrosion resistance, and steel sheet plated
with the same
    8.
    发明授权
    Method of producing a steel sheet plated with Zn-Mg alloy superior both in plating adhesion and corrosion resistance, and steel sheet plated with the same 失效
    制造镀上镀层附着力和耐腐蚀性的Zn-Mg合金的钢板的制造方法以及镀有该钢板的方法

    公开(公告)号:US5021301A

    公开(公告)日:1991-06-04

    申请号:US600523

    申请日:1990-10-19

    IPC分类号: C25D3/66 C25D5/26

    CPC分类号: C25D3/66 Y10T428/12799

    摘要: A plated steel sheet is produced by an electroplating in a plating bath of about 350.degree. to 500.degree. C. containing a chloride of Zn, a chloride of Mg and one, two or more of chlorides of Na, K and Li, with a plating current density ranging between about 20 and 350 A/dm.sup.2.The Zn-Mg alloy plated steel sheet superior both in plating adhesion and corrosion resistance has a plating layer formed on at least one surface thereof in an amount of about 10 to 60 g/m.sup.2, and by electroplating in a bath of a fused salts, the plating layer containing about 1 to 35 wt % of Mg, about 0.5 to 25 wt % of mean value of Fe and the balance substantially Zn and incidental inclusions. The Fe content in the plating layer has such a gradient that its concentration is greatest at the interface between the plating layer and the steel sheet and progressively decreases towards the surface of the plating layer opposite to the steel sheet where the Fe content is substantially zero. The plated steel sheet may further have a chromate treatment layer formed on the plating layer, with or without an organic coating film formed on the chromate treatment layer.