Galvanized steel electric galvanized process may cause the product quality

Bluing packing tape manufacturer to introduce the galvanized steel charged under the galvanizing technology may cause the quality of the products. Electric galvanizing cost lower than that of hot dip galvanized, hot galvanized steel sheet, so its quality is lower than the difference between electric galvanized and hot galvanized sheet Beijing website production, lies in its appearance without zinc flower, appearance is not bright, galvanized quantity is low. In addition, electric galvanized in construction process is easy to appear quality problems, here are a few on the quality of the electric galvanized steel strip subject. Pinhole topic, pinhole is usually produced by hydrogen bubble absorption in electroplating process and defects. In the plating reaction, produce a lot of bubbles, the bubbles if not promptly eliminate, will be trapped between the strip and the anode appearance, anode and the effects of strip steel exterior is covered by gas layer and conductive, causing strip local plating appearance. Pitting subject, refers to the coating appearance irregular concave hole hole, its characteristic is the shape, size, two-tone. Pitting defects as usual because substrate deficiencies or foreign body adhesive in electroplating process. Burr ( Or coarse) Subject, refers to the coating appearance outstanding and hand feeling of foreign body, when the strip speed is low, current density is high, the coating appearance becomes coarse, but affects the quality of coating. Bubbling subject, refers to the coating appearance uplift of vesicles, its characteristic is different size, density, and scattered with substrate. As usual in zinc alloy, aluminum alloy coating is made manifest. Possible topics include the quality of the galvanized, peeling, Or fall out) No coating, spots, Yin and Yang, local, for these questions to avoid as far as possible, hard to avoid is to reduce the harm.