In the iron wire market, the price and type of galvanized wire are uneven. Today, Tianze Metal Company, the galvanized iron wire supplier in China, will teach you how to identify the pros and cons of GI wire. What are the characteristics of high-quality galvanized wire? Let’s have a look together.
The coating surface of high quality galvanized wire products is continuous and smooth. There is no sagging, dripping or slag on the plating installation and integration. Plating surface should be no leakage plating, exposed iron and other defects. Regardless of plating size, drain plating area in the diameter of 0.5-1 mm spot, no more than 3 points per square centimeter, and plating spots in the total number of points does not exceed 10 points; in non-connection or non-junction, no more than 1.5 mm in height drip or slag. Plates and hanging tools and operating tools contact scars, but not exposed iron.
Good galvanized wire, when the plating thickness is 3-4 mm, the amount of zinc adhesion should be less than 460 g / m, that is the average thickness of the zinc layer was not less than 65 microns. The coating of standard galvanized wire must be uniform, zinc coating substantially uniformly, and etch with copper sulfate solution five times without exposure to iron. The standard galvanized wire coating adhesion requires zinc-plated layer should be firmly bound to the base metal has adequate adhesion strength. It does not fall off by hammering test, no projection.