Method for drawing steel wire

A wire drawing technology for steel wire and water tank is applied in the field of wire drawing, which can solve the problems of complicated process and increase production cost, and achieve the effect of simplifying the process and reducing the cost.
CN101972784AInactive Publication Date: 2011-02-16JIANGSU TAILI STEEL ROPES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU TAILI STEEL ROPES
Publication Date
2011-02-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for drawing a steel wire. The method comprises the following steps in turn: a) immersing the steel wire into a phosphating tank which has tonnage of between 15 and 25, free acidity of between 10 and 14 and total acidity of between 80 and 120; b) performing acid-washing and phosphating for 2 to 3 hours; c) primarily drawing the steel wire with diameter of 5.5mm to be 2.8mm by using a water tank drawing vehicle with roller diameter of 650mm; and finally d) secondarily drawing the steel wire to be 1.3mm by using the water tank drawing vehicle with roller diameter of 450mm. In the method for drawing the steel wire of the invention, by adjusting the size of the phosphating tank and the concentration of phosphoric acid, the steel wire with diameter of 5.5mm is drawn to be the steel wire with diameter of 1.3mm by using the water tank drawing vehicles with different sizes, so that the thermal treatment and second acid washing are saved, the process is simplified, and the cost is reduced.
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Description

technical field

[0001] The invention relates to a steel wire processing method, in particular to a steel wire drawing method. Background technique

[0002] The main process of steel wire production includes raw material selection, iron scale removal, drying, coating treatment, heat treatment, wire drawing, coating treatment, etc.

[0003] Under the drawing of the wire drawing machine reel, that is, the winch (see wire drawing machine), the wire rod or intermediate wire blank is deformed through the hole of the wire drawing die to reduce the cross section and change the shape to obtain the required size, shape, performance and surface quality. steel wire. Steel wire drawing usually requires multiple passes, and the area reduction rate (see area reduction rate) of each pass is about 10% to 40%. The molds used for drawing steel wire mainly include fixed molds, roller molds (see roller mold drawing), rotary molds, etc., and the fixed molds are the main ones. The fixed die is ...

Claims

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