Continuous torsion-less drawing process of producing steel wire with spiral rib

Abstract

The continuous operation production line of spiral rib steel wire is formed by the procedures of paying-off, 1-8 multiple pass cold-drawing plastic deformation, rotating plastic deformation, medium-frequency heating stress-removing tempering, applying pretension, continuous feeding and reeling. The length of said production line is 60 m, and said production line can be controlled by microcomputer, its touch display screen and data display are clear and accurate, it adopts man-machine interface operation mode. It not only raises production efficiency, reduces production cost, but also raises quality of product, and effectively solves the difficult problem of non-uniform mechanical property of steel wire.

Description

Technical field: [0001] The invention is a new process for continuous production of low-relaxation spiral rib prestressed steel wire or smooth prestressed steel wire without torsion drawing, and belongs to the technical field of steel wire production technology. Background technique [0002] The production of low-relaxation prestressed steel wire at home and abroad is composed of three relatively independent processes of surface treatment, drawing and stabilization treatment. That is to say, the raw materials that have passed the inspection (non-twist-controlled cold Sorbitized wire rod) are put into production. The first process is surface treatment. The method is to remove the iron oxide scale on the surface of the wire blank and firmly coat it with good ductility. lubricant carrier. The second process is the drawing process. Put the wire blank after surface treatment on a single or continuous wire drawing machine, and carry out drawing plastic deformation in turn, and ob...

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Problems solved by technology

In this way, it not only improves the production efficiency and reduces the cost, but also effectively solves the problem of uneven mechanical properties of the steel wire caused by the equipment stoppage when the steel wire is stabilized at home and abroad, and the delay in the start-up of the intermediate frequency heating furnace. the quality of

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