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CN102061500B 一种不锈钢表面化学着黑色的着色液及着色方法 失效 - 权利终止

  • 专利标题： 一种不锈钢表面化学着黑色的着色液及着色方法
  • 专利标题（英）： Coloring liquid and coloring method for chemically coloring stainless steel surface into black
  • 申请号： CN201110023204.3
    申请日： 2011-01-20
  • 公开(公告)号： CN102061500B
    公开(公告)日： 2012-05-23
  • 发明人: 满瑞林 , 梁永煌 , 胡俊利 , 王玥 , 赵鹏飞
  • 申请人： 中南大学
  • 申请人地址： 湖南省长沙市岳麓区麓山南路932号
  • 专利权人： 中南大学
  • 当前专利权人： 中南大学
  • 当前专利权人地址： 湖南省长沙市岳麓区麓山南路932号
  • 代理机构： 长沙市融智专利事务所
  • 代理商 颜勇
  • 主分类号： C25D11/00
  • IPC分类号： C25D11/00
一种不锈钢表面化学着黑色的着色液及着色方法
摘要：
本发明公开了一种304不锈钢表面化学着黑色的着色液及着色方法，属于不锈钢表面处理技术领域，目的是在304不锈钢表面着上黑色膜层，重点解决色膜均匀性差和重现性难的问题，增加不锈钢装饰性，提高其耐磨和耐腐蚀能力。本发明主要包括304不锈钢表面着黑色的着色液配方和着色工艺。其中，着色液主要由主成膜剂(铬酐和硫酸铬)、辅助成膜剂(硫酸)、添加剂(硫酸铁、硫酸锰和硫酸铈)和水组成；着色工艺则主要包括电解预处理，化学着色和封孔后处理，着色过程采用电位控制。本发明得到的不锈钢黑色膜具有色膜均匀、无明显色差、色泽光亮、耐磨性和耐蚀性能优异、膜层附着力好，工艺简单实用、着色过程易于控制，颜色重现性好等特点。
摘要（英）：

The invention discloses a coloring liquid and a coloring method for chemically coloring a 304 stainless steel surface into black, belonging to the technical field of stainless steel surface treatment, aiming to coat a back film layer on the 304 stainless steel surface, mainly solving the problem that a colored film has poor uniformity and repeatability, and being used for improving the decorativeperformance, wear resistance and corrosion resistance of stainless steel. The invention mainly includes the prescription of the coloring liquid and the coloring method for coloring the 304 stainless steel surface into black, wherein the coloring liquid mainly comprises main film-forming agents (chromic anhydride and chromium sulfate), an assistant filming-forming agent (sulfuric acid), additives (ferric sulfate, manganese sulfate and cerous sulfate) and water; and the coloring method mainly comprises the steps of electrolysis pretreatment, chemical coloring and hole sealing post-treatment, wherein potential control is adopted in the coloring process. A black stainless steel film obtained by using the coloring liquid and the coloring method has the advantages of uniform colored film, no obvious color difference, bright color, excellent wear resistance and corrosion resistance, good film adhesion, simple and practical coloring method, easily controlled coloring process, good color repeatability and the like.

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