Product quality problems that may be caused by the electrogalvanizing process of galvanized steel strip

Baked blue packing tape manufacturers will introduce to you the product quality problems that may be caused by the galvanized steel strip electro-galvanizing process.
　　The cost of electro-galvanizing is lower than that of hot-dip galvanizing, so its quality is lower than that of hot-dip galvanized sheet. The difference between electro-galvanized sheet and hot-dip galvanized sheet is that its appearance is not spangled and its appearance is not shiny. , The amount of zinc plating is low. In addition, electro-galvanized steel is prone to quality problems in the construction process. Here are a few quality problems related to electro-galvanized steel strips.
　　Pinhole problem, pinholes are usually defects caused by the adsorption of hydrogen bubbles during the electroplating process. In the electroplating reaction, a large number of bubbles are generated. If these bubbles are not eliminated in time, they will stay between the appearance of the strip and the anode. The appearance of the anode and the strip is covered by a gas layer, which affects the conductivity, causing the appearance of the strip to be partially coated. .
　　 pitting problem, refers to the irregular appearance of the cavities of the coating, and its characteristics are different in shape, size, and depth. Pockmarks are usually caused by defects in the substrate or the adhesion of foreign objects during the electroplating process.
　　 burr (or roughness) problem refers to the foreign matter that the coating has a prominent appearance and has a thorny feel. When the strip speed is very low and the current density is high, the appearance of the coating will become rough, which will affect the quality of the coating.
　　The bubbling problem refers to small bubbles with raised appearance of the coating, which are characterized by different sizes, density, and scattered with the substrate. It is usually more obvious in zinc alloy and aluminum alloy coatings.
　　 The possible quality problems of electro-galvanizing also include peeling (or peeling), spots, yin and yang surfaces, and partial non-plating. Avoid these problems as much as possible, and minimize the hazards if they are inevitable.