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CN102703904A 一种用于硅含量高的钢铁表面氧化物提取的缓蚀液及其使用方法 无效 - 驳回

一种用于硅含量高的钢铁表面氧化物提取的缓蚀液及其使用方法
摘要：
本发明涉及一种用于硅含量高的钢铁表面氧化物提取的缓蚀液及其使用方法。其特征在于：它由缓蚀剂和腐蚀液组成，所述的缓蚀剂在缓蚀液中的质量百分比浓度为0.2-1.0％；所述的腐蚀液由高氯酸、盐酸、硫酸、硝酸中的至少一种和氢氟酸混合而成，其中，所述腐蚀液中氢氟酸组份在缓蚀液中的摩尔浓度为3.0~8.0mol·L-1；其他腐蚀液组分以氢离子浓度计在缓蚀液中的摩尔浓度为2.0mol·L-1~25mol·L-1。其使用方法为：它是将钢铁试样完全浸泡于缓释液中，直至观察到有少量气泡产生时立即将试样取出。本发明提供的缓释液用于提取钢铁试样表面氧化物，可使该钢铁试样表面氧化物组分含量的进一步分析不受到钢铁试样基体中的铁的干扰，保证分析结果的准确性。
摘要（英）：

The invention relates to a corrosion-inhibiting solution for extracting steel surface oxide with high silicon content and a using method for the corrosion-inhibiting solution. The corrosion-inhibiting solution is characterized by consisting of a corrosion inhibitor at the mass concentration of 0.2 to 1.0 percent and a corrosive liquid, wherein the corrosive liquid is formed by mixing at least one of perchloric acid, hydrochloric acid, sulfuric acid and nitric acid, and hydrofluoric acid; the molar concentration of a hydrofluoric acid component in the corrosive liquid is 3.0 to 8.0mol.L<-1> in the corrosion-inhibiting solution; and the molar concentration (based on the concentration of hydrogen ions) of other corrosive liquid components is 2.0 to 25 mol.L<-1> in the corrosion-inhibiting solution. The using method for the corrosion-inhibiting solution comprises the following steps of: completely soaking a steel test sample in the corrosion-inhibiting solution, and immediately taking the test sample out when a small amount of bubble is generated. The corrosion-inhibiting solution is used for extracting surface oxide of steel test samples, can ensure that the follow-up analysis of the component content of the surface oxide of the steel test samples is not affected by iron in matrixes of the steel test samples, and ensures the accuracy of analysis results.

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