Manufacturing method of weather-resistant and acid-resistant wire rod for animal husbandry

Abstract

The embodiment of the present invention provides a method for producing weather-resistant and acid-resistant wire rods for animal husbandry. The manufacturing method includes the following steps in sequence: hot metal desulfurization, 150-ton top-bottom re-blowing converter, argon blowing after the furnace, LF furnace refining, 165mm Continuous casting of ×165mm billets, billet heating, high-pressure water descaling, high-speed wire rolling, and controlled cooling; the chemical composition weight percentage of the weather-resistant and acid-resistant wire rod for animal husbandry is: carbon C≤0.07wt%, silicon Si ≤0.10wt%, manganese Mn: 0.20~0.30wt%, phosphorus P≤0.025wt%, sulfur S≤0.015wt%, nickel Ni: 0.15~0.20wt%, chromium Cr: 0.62~0.75wt%, copper Cu: 0.25 ~0.32wt%, antimony Sb: 0.04~0.06wt%, the balance is Fe and unavoidable trace elements.

Description

technical field [0001] The invention belongs to the technical field of iron and steel smelting, and relates to a method for producing weather-resistant and acid-resistant wire rods for animal husbandry. Background technique [0002] Breeding cages are widely used in animal husbandry, especially in specialized large-scale farms. At present, low-carbon steel hot-rolled round wire rods of Q195 are commonly used in China for processing. The production and processing technology is: φ6.5mm wire rod → mechanical shelling (or pickling)→rough drawing→finish drawing→φ1.85~3.0mm steel wire→straightening, shearing→welding into mesh→surface pickling→hot-dip galvanizing→air drying→grinding burrs→finished breeding cage. [0003] Due to the high humidity of the breeding environment and the contact with the weakly acidic poultry manure, the steel corrosion rate is fast, so the surface of the breeding cage needs to be treated with anticorrosion. At present, domestic breeding cage manufacture...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method for producing weather-resistant and acid-resistant wire rods for animal husbandry. By redesigning the chemical composition of steel and finely controlling the steelmaking and rolling processes, the atmospheric resistance of wire rods produced in the prior art is solved. Corrosion and acid corrosion resistance are poor, and the produced wire rod also has the advantages of good drawing performance and strong steel wire resilience.

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