Galvanized Steel Wire Rope High Corrosion Resistance
Galvanized steel wire rope, the provisions of the weight of zinc, copper sulfate test the number and time, and indicate the implementation of the standard. Galvanized steel wire rope, the provisions of the weight of zinc, copper sulfate test the number and time, and indicate the implementation of the standard. Such as: GB / T8918-1996, the diameter of> 0.55 ~ 0.6mm galvanized monofilament according to Table 3, and according to GB2973-91 and GB2972-91, GB2973-91 test methods. The Japanese standard JISG3525 only specifies the weight of the zinc layer, for the diameter of 0.5 ~ 0.8mm zinc wire according to the requirements listed in Table 4, and according to JISH0401 test method.
It can be used in the fields of high-rise buildings, transportation and transportation, traction, strapping and other fields for shipping, offshore oil exploration, aircraft handling and marine fishing, trawl, fixed net, roll net and other fisheries.
Galvanized rope rope core used in the past commonly used sisal and jute manufacturing, but because of these materials at work easy to absorb acid, alkali, sea water and other corrosive substances, resulting in the early corrosion of the inner wire wire, has been switched to polypropylene as a core.
Galvanized steel wire rope twist and ordinary round wire rope the same, but according to the use of wire rope working conditions, the thickness of the raw material steel zinc layer has different requirements: diameter 0.2 ~ 5.0mm special number and I galvanized steel wire rope, coating Thickness can be divided into three groups: the amount of zinc on the thin coating group is 15 ~ 135g / m2, for mild corrosion conditions; the amount of zinc on the coating group is 60 ~ 200g / m2 for medium corrosion conditions; The amount of zinc on the 75 ~ 260g / m2, for serious corrosion conditions. In order to ensure the quality of wire rope, steel galvanized layer surface should be smooth, complete, uniform and solid. When the galvanized steel wire is spirally wound on a mandrel with a diameter of 5 times or 10 times the diameter of the wire, the zinc layer should not fall off or crack. The corrosion resistance of the galvanized layer should also be checked accordingly.
Galvanized steel wire with multi-line continuous hot-dip plating and plating two methods. Electroplating of zinc (see galvanized steel wire) is through the external power supply, electrodeposition way to obtain the coating, the coating is obtained by the fine composition of pure zinc particles. Hot-dip galvanized (see hot-dip galvanized steel wire) is formed by the physical diffusion of heat to form a coating, the first formation of iron-zinc compounds, one by one in the iron-zinc compound surface pure zinc layer. In theory, galvanized zinc can be obtained in any thickness. At present, the amount of zinc on the practical zinc plating can reach 1200g / m2. , The general zinc plating layer of zinc can reach 750g / m2. While the highest value of zinc on hot zinc plating, but also 593g / m2. Hot galvanized will reduce the mechanical properties of steel wire, requiring high strength and high corrosion resistance of galvanized steel wire rope, and more use of galvanized steel wire twisting.