2000 MPa-grade bridge cable galvanized steel wire and preparation method thereof
A technology of galvanized steel wire and manufacturing method, which is applied in the direction of hot-dip galvanizing process, coating, metal material coating process, etc., can solve the problem of low pass rate of torsion, and achieve the effect of avoiding rapid expansion and reducing the impact
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[0045] Hereinafter, the galvanized steel wire of 2000MPa-class bridge cable and its manufacturing method in the present invention will be further described.
[0046] The chemical composition of the galvanized steel wire for the 2000MPa-class bridge cable in the present invention includes: C0.88-0.94%, Si 1.05-1.35%, Mn 0.40-0.50%, Cr 0.25-0.35%, Cu≤0.07%, and the remaining The amount is Fe and inevitable impurity elements. In addition, the chemical composition also includes any one or more of B 0.0005-0.0015%, Nb 0.01-0.03%, and Mo0.01-0.03%.
[0047] The method for manufacturing the above 2000MPa-class galvanized steel wire for bridge cables includes the selection of wire rods, the pickling of the wire rods, phosphating, wire drawing, galvanizing and stabilization. The production process is detailed as follows:
[0048] 1. Selection of wire rod
[0049] The wire rod is selected according to the chemical composition, surface quality and inclusion requirements required by the present ...
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