为了准确地检验高碳过共析钢盘条中的网状渗碳体,分别对选用硝酸酒精溶液侵蚀和碱性苦味酸钠水溶液热侵蚀两种显示方法进行了比较。结果表明:采用碱性苦味酸钠水溶液热侵蚀显示的网状渗碳体较清晰,因此认为使用该方法是目前检验高碳过共析钢盘条网状渗碳体的较佳选择。

In order to detect the carbide network in high carbon hypereutectoid steel wire rods accurately,two kinds of detection method of the carbide network are compared. There are corrosion by nitric-acid alcohol solution and hot corrosion by the aqueous solution with alkaline sodium picrate. It is concluded that hot corrosion by the aqueous solution with alkaline sodium picrate is the best method to show the carbide network in high carbon hypereutectoid steel wire rods,because this method can show the most clear-cut carbide network.