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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.

Inactive Publication Date: 2011-02-16
JIANGSU TAILI STEEL ROPES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing process generally uses a phosphating tank of about 7 tons, a phosphating solution with a free acidity of 6-8 points and a total acidity of 60-80 points. Second drawing, the process is complicated, which increases the production cost

Method used

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  • Method for drawing steel wire
  • Method for drawing steel wire
  • Method for drawing steel wire

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Embodiment Construction

[0012] The present invention will be further described below with reference to the drawings and embodiments.

[0013] The figure is a schematic diagram of the steel wire drawing method of the present invention.

[0014] See figure 2 The steel wire drawing method provided by the present invention includes the following steps in sequence:

[0015] Step S201: Immerse the steel wire to be drawn into a phosphating pool with a tonnage of 15-25, a free acidity of 10-14, and a total acidity of 80-120, and then proceed to step S202;

[0016] Step S202: pickling and phosphating for 2 to 3 hours to form a phosphor layer with a thickness and bonding force that conform to the drawing, go to step S203;

[0017] Step S203: Then, the steel wire with a diameter of 5.5mm is stretched to 2.8mm at a time using a water tank drawing car with a drum diameter of 650mm, and then step S204 is entered;

[0018] Step S204: Finally, a water tank drawing car with a drum diameter of 450 mm is used to stretch the ste...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C1/02
Inventor 顾伟黄海兵
Owner JIANGSU TAILI STEEL ROPES
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