Wire rod for 460mpa level weather-resistant studs, production method and prepared studs

A 460mpa, wire rod technology, applied in the field of wire rods, can solve the problems of increased corrosion resistance gap, inability to transmit shear force, and damage to building structures, achieving significant weather resistance, reducing user processing, and improving safety.

CN109852888BActive Publication Date: 2021-01-08ANGANG STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-01-08

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Abstract

The invention provides a steel wire rod for a 460Mpa level weather-proof stud, a production method and the prepared stud. The components of the steel wire rod include, by weight percentage, 0.06-0.10%of C, 0.15-0.25% of Si, 0.45-0.65% of Mn, 0.020% or less of P, 0.015% or less of S, 0.02-0.06% of Al, 0.45-0.65% of Ni, 0.30-0.60% OF Cr, 0.20-0.40% of Cu, 0.01-0.04% of V, 0.005-0.030% of Ti, 0.10-0.25% of Mo, and the balance iron and unavoidable impurities. The production method includes the steps of smelting, continuous casting, billet heating, rolling, spinning, and steel wire rod cooling. The stud produced through the steel wire rod has remarkable weather-proof performance, the yield strength is not lower than 460 MPa, and meanwhile good welding performance is kept.
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Description

technical field

[0001] The invention belongs to the field of wire rods, and in particular relates to a wire rod for 460MPa-level weather-resistant studs, a production method and the prepared studs. Background technique

[0002] Studs are short for arc stud welding cylindrical head welding studs (English Cheese head studs for arc studwelding). It acts as a rigid combined connection and is suitable for high-rise steel structure buildings, industrial plant buildings, roads, railways, bridges, towers, automobiles, energy, transportation facilities, airports, stations, power stations, pipe supports, hoisting machinery and other various Class steel structure and other projects.

[0003] The current national standard for studs uses the national standard GB / T10433-2002, which is suitable for shear parts, embedded parts and anchors of various structures in civil engineering. GB / T10433-2002 non-equivalent adopts the international standard ISO13918: 1998 "Studs and magnetic rings for...

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Embodiment Construction

[0030]Below by embodiment the present invention will be further described.

[0031] A production method for wire rods for 460MPa level weather-resistant studs, comprising smelting-continuous casting-slab heating-rolling-spinning-wire rod cooling,

[0032] (1) Steel billet heating: the steel billet cross-sectional dimension specification that produces wire rod adopts among the present invention is: (150mm~160mm) * (150mm~160mm), steel billet heating is always in furnace time 2.5~3 hours, soaking section temperature is at 950 ℃~1040℃;

[0033] (2) Rolling: the pre-finishing temperature of the rolled piece is controlled at 840 ° C ~ 860 ° C, and the temperature of the double module is 850 ° C ~ 870 ° C;

[0034] (3) Spinning: wire rod spinning diameter is 10.0mm~25.0mm, and wire spinning temperature is controlled at 830℃~850℃;

[0035] (4) Wire rod cooling: adopt air cooling or EDC cooling;

[0036] The air cooling: the initial roller table speed is 0.15-0.25m / min, and the ave...