Method for detecting content of zinc slag in hot galvanizing zinc liquid

The invention relates to a method for detecting the content of zinc slag in hot galvanizing zinc liquid, which belongs to the technical field of detection methods. The method comprises the following steps of (1) sampling zinc liquid in a zinc pot during production of an outer plate, and cooling to obtain a blocky sample, (2) longitudinally cutting the blocky sample, and polishing and corroding a cutting surface, and (3) observing the size and the density of the suspended slag in the zinc pot within the area of 10 mm under 100 times of a microscope, and stopping production of the outer plate when the size and the density of the suspended slag exceed the standard. By using the method disclosed by the invention, the zinc slag in the sample can be clearly identified, and the control of the zinc slag in the production process of the hot-galvanized automobile outer plate can be rapidly and conveniently guided. 本发明涉及一种检测热镀锌锌液中锌渣含量的方法，属于检测方法的技术领域。包括以下步骤：(1)外板生产期间，对锌锅中锌液进行取样，冷却得块状样品；(2)将块状样品进行纵切，对切面进行抛光和腐蚀；(3)在显微镜100倍