Wire rod pickling-free drawing production process

Abstract

The invention discloses a wire rod steel wire rod pickling-free drawing production process, and belongs to the technical field of wire rod pickling-free drawing in steel strand production. According to the production process, an energy-saving and pollution-free production line is formed and a traditional pickling and phosphating production process is replaced by sequentially carrying out tension straightening and shelling, centrifugal shot blasting, ultrasonic cleaning, high-pressure water washing, boronizing layer coating and drawing, specifically, an oxide layer on the outer surface of the wire rod is effectively removed by using three five-roller centralized tension straightening machines simultaneously; in the process of centrifugal shot blasting, the surface of the wire rod achieves acorresponding glossiness level convenient for the boronizing layer coating by adopting a forward and reverse mode, a high speed mode and a high frequency mode; the wire rods preheated when the boronizing layer is coated, so that the production efficiency is greatly improved and the adsorption the surface of the wire rod to the boronizing liquid is enhanced; and the surface of the wire rod is quickly dried at high speed and high temperature in a direction perpendicular to the surface of the steel rod after coating, and the boronizing layer is prevented from absorbing water, so that the drawingquality is guaranteed.

Description

technical field

[0001] The invention belongs to the technical field of pickling-free drawing of wire rods in the production of steel strands, and in particular relates to a production process of wire rods and wire rods without pickling and drawing. Background technique

[0002] In the metal products industry, wire rods (high-speed wire rods) need to be descaled before drawing. As a traditional chemical rust removal method, pickling technology has been used up to now because of its simple operation, clean surface and stable quality after pickling. There are many problems in the pickling process, such as the high cost of pickling, the need for a large amount of water to rinse the residual acid and ferrous chloride on the pickled wire rod, hot rinsing to accelerate the discharge of residual hydrogen, and the volatilization of acid mist during the treatment process A series of problems such as affecting the environment and low production efficiency have forced the industry to fi...

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