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Metallic chromium-nickel-hydrated chromium oxide-coated tin free steel and process for the production thereof

机译：金属铬镍水合氧化铬涂覆的无锡钢及其生产方法

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摘要

Tin free steel having three layers consisting of a bottom layer of metallic chromium, a middle layer of metallic nickel and a top layer of hydrated chromium oxide on a steel base, and a method for the continuous production of this tin free steel which comprises; (a) chromium plating a steel base to form a layer of metallic chromium and hydrated chromium oxide; (b) nickel plating the chromium plated steel base by using a nickel plating electrolyte sufficiently acidic to dissolve the hydrated chromium oxide and (c) forming a hydrated chromium oxide layer on the chromium plated nickel plated steel base.P PInstead of step (b) in the above method, a cathodic treatment in an acidic solution can be carried out for the removal of the hydrated chromium oxide formed during chromium plating, and thereafter nickel plating can be carried out. PPThis tin free steel is useful for producing welded can bodies at high speed without removing the plated layer in the welded part, since it has an excellent weldability.

机译：一种无锡钢，其在钢基底上具有三层，该三层由金属铬的底层，金属镍的中间层和水合氧化铬的顶层组成，并且该无锡钢的连续生产方法包括：（a）在钢基底上镀铬，以形成一层金属铬和水合氧化铬; （b）通过使用足够酸性以溶解水合氧化铬的镍电镀电解液对镀铬钢基底进行镍镀层;和（c）在镀铬镍镀钢基底上形成水合氧化铬层。在上述方法的步骤（b）中，可以在酸性溶液中进行阴极处理以除去在镀铬期间形成的水合氧化铬，然后可以进行镀镍。

这种无锡钢具有极好的可焊接性，因此可用于高速生产焊接罐体而无需去除焊接零件中的镀层。展开▼

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公开/公告号US4511631A

专利类型
公开/公告日1985-04-16

原文格式PDF
申请/专利权人 TOYO KOHAN CO. LTD.;
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申请/专利号US19840599822
发明设计人 TERUNORI FUJIMOTO;MUTSUHIRO SHIMIZU;AKIO MIYACHI;TSUNEO INUI;KAZUNORI YANAGIHARA;NOBUYOSHI SHIMIZU;
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申请日1984-04-13
分类号C25D5/12;C25D5/48;C25D11/38;
国家 US
入库时间 2022-08-22 07:52:47

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