In November, a method for refining the structure of low-carbon steel wire declared by Hebei Iron and Steel Co., Ltd. Vanadium and Titanium Engineering Technology Research Center was awarded the national invention patent.
The patent adopts a composite alloying method of titanium, vanadium and nitrogen, which utilizes different precipitation temperatures and effects of carbonitrides in steel, vanadium and nitrogen steel, and controls the rolling process under the conditions of existing steel smelting and rolling production equipment. The parameters control the precipitation of carbonitrides, refine the prior austenite grains, promote the nucleation of ferrite, and refine the structure of the wire. By increasing the nitrogen content and adding a small amount of titanium, the amount of vanadium added and the carbon content of the steel are reduced, and the action and strengthening effect of carbonitride precipitation and refining structure are fully exerted, and the high-strength, low-hardness cold-twist steel wire is obtained, and the pulling is improved. Pull performance and reduce production costs.
U Nails
U nails refer to a kind of fasteners with two-pronged shanks. These U nails are usually used for attaching the mesh fences to wooden posts and frame, hence the name fencing staples. These practical nails can fix the wire, rope even Barbed Wire to the ground, wooden post or stakes. Therefore, people like to use them in agriculture & gardening, viticulture & other fruit growing, animal coops & plant trellises construction.
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