Large coil galvanized wire is formed by wire drawing, wire drawing is a processing process, can make the product to meet the required shape and meet the standard mechanical properties. Cold wire drawing is carried out at recrystallization temperature, hot wire drawing is carried out at crystallization temperature, warm wire drawing is drawn at higher than room temperature and lower than crystallization temperature. Cold drawing is a common drawing method. Hot drawing is the heating of the wire before it enters the die hole. It is mainly used for drawing the wire with high melting point.
The temperature drawing is carried out by heating the heater to the specified temperature range, mainly used for the drawing of galvanized steel wire, difficult to deform. Galvanized wire is processed through the drawing process, the formation of standard specifications of steel wire, and then in the electroplating tank through the current unidirectional zinc plating on the surface. The production speed is very slow, the zinc layer of galvanized zinc is very uniform, the thickness is relatively thin, generally in 3~15 microns, the brightness is very high, but the corrosion resistance is relatively poor, and it is recommended to buy according to the demand when using.
The wide use of large galvanized wire products is largely due to its anti-rust and anti-corrosion effect, because zinc has a great protective effect on the appearance of the product, so it greatly improves the role and characteristics of the product itself, so as to promote the application of the product. The zinc layer of zinc wire with thick zinc layer has fine crystallinity, uniform and no void, and good corrosion resistance.
The zinc layer produced by electrogalvanizing is very pure and corrosion is slow in acid and alkali gas, liquid and fog, which can effectively protect the steel matrix. Galvanized layer can also be treated by chromic acid passivation into a variety of colors, beautiful and generous, with good decorative. The zinc layer on galvanized wire has good ductility and can be cold blanking, rolling, bending and other molding without damaging the zinc layer.
Post time: 17-02-22