Surface treatment process method before wiredrawing of welding wire

A technology of surface treatment and process method, which is applied in the field of continuous surface treatment, can solve problems such as low production efficiency, environmental pollution, and long pickling time, and achieve the effects of preventing over-corrosion, eliminating pollution, and reducing dosage

Inactive Publication Date: 2012-08-01
柳州市红日焊丝制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a surface treatment process before wire drawing, which can solve the problems of long pickling time, low production efficiency, and unsatisfactory effect of removing scale in the welding wire production line for the surface treatment of the raw material to be drawn. Environmental pollution and other issues

Method used

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  • Surface treatment process method before wiredrawing of welding wire
  • Surface treatment process method before wiredrawing of welding wire
  • Surface treatment process method before wiredrawing of welding wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Remove the metal oxide scale of the welding wire to be drawn: the oxide scale is peeled off by passing the welding wire 3 to be drawn through a peeling machine, and the peeling machine is as follows: figure 1 and figure 2 As shown, the peeling machine has a group of longitudinal sheaves 2 vertically arranged on three axes installed in the casing 1. The relative positions of the three longitudinal sheaves 2 are arranged in the shape of "product" to form a group of longitudinal folding. Winding wheel group: In the casing 1, after the longitudinal winding of the wheel group, three horizontal sheaves 4 arranged horizontally on the axis are installed. The wheel set, the welding wire 3 to be pulled is successively bypassed in the peeling machine by the longitudinal folding wheel set formed by three longitudinal sheaves 2 and the transverse folded wheel set formed by three transverse sheaves 4 to make the oxide skin on the surface Detach after repeated bending; the detached...

Embodiment 2

[0020] Except for the following parameters, other parts of this embodiment are the same as in Embodiment 1: the process conditions of the electrolytic pickling step are that the moving speed of the welding wire to be drawn is 0.5 m / s, the surface current density of the welding wire to be drawn is 350A / d㎡, and the electrolysis The temperature of the liquid is controlled at 25-35°C. The weight ratio of the following components in the electrolyte is 1% sulfuric acid, 2% hydrochloric acid, 5% sodium sulfate, and 0.005% additives. The weight ratio of the following components in the additive is dodecane 80% sodium base benzene sulfonate, 5% alkylphenol polyoxyethylene ether, and the balance is water.

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Abstract

The invention discloses a surface treatment process method before the wiredrawing of a welding wire. The method comprises the following process steps of: physically removing mill scale of a welding wire to be drawn in a husking machine; and performing an electrolytic pickling process under the condition that the movement speed of the welding wire to be drawn is 0.3 to 0.5 meter/second, the surface current density of the welding wire to be drawn is 150 to 350A/dm<2> and the temperature of an electrolyte solution is controlled to 15-60 DEG C, wherein the electrolyte solution consists of sulfuric acid, hydrochloric acid, sodium sulfate and an additive, and the additive consists of sodium dodecyl benzene sulfonate and alkylphenol polyoxyethylene ether. By the method, the problems of long pickling time, low production efficiency, non-ideal mill scale removing effect, environmental pollution and the like existing in the surface treatment process before the wiredrawing of the welding wire are solved.

Description

technical field [0001] The invention relates to the technical field of welding wire production, in particular to a continuous surface treatment method for welding wire before wire drawing. Background technique [0002] Coiled welding wire is widely used in the production lines of the mechanical industry, and the amount of use is very large. And the processing of current welding wire mostly is to make the welding wire of various specifications into coils after a series of drawing and other processing procedures with the special-made welding wire to be drawn that the diameter is thicker. In the welding wire production line, before the drawing process, it is required to remove the scale, oil and other sundries on the surface of the raw material for processing welding wire; at present, the traditional process of chemical pickling is used to remove the scale of the raw material for drawing. , that is, pickling directly with acid solutions such as hydrochloric acid, and the purp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25F3/02
Inventor 韦冬昌
Owner 柳州市红日焊丝制造有限公司
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