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Preparation method of aluminum alloy welding wire

An aluminum alloy welding wire and aluminum alloy technology, applied in the field of aluminum alloy, can solve problems such as arc instability, spatter weld quality, easy debris clogging, etc., and achieve high productivity, precise size, and avoid air holes.

Inactive Publication Date: 2015-02-04
NO 52 INST OF CHINA NORTH IND GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a solution to the excessive dependence of the welding wire on high-precision drawing equipment, improve the internal and external quality of the welding wire, and solve the problem of easy chipping and blocking of the contact tip during the welding process, unstable arc, serious spatter, etc., which affect the welding process and poor weld quality. A preparation method of aluminum alloy welding wire

Method used

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  • Preparation method of aluminum alloy welding wire
  • Preparation method of aluminum alloy welding wire
  • Preparation method of aluminum alloy welding wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of φ1.6 ER5183 aluminum alloy welding wire is as follows:

[0023] (1) First use the cold rolling mill to cold-roll the φ10.5mm aluminum alloy wire rod, and roll it to φ4.0mm at one time;

[0024] (2) After cold rolling, the aluminum alloy wire rod of φ4.0mm is drawn for 2 passes on a single drawing machine, and drawn to φ2.4mm;

[0025] (3) Use a scraper to scrape the alloy wire at a scraping speed of 14m / s;

[0026] (4) The scraped alloy welding wire is finely drawn on a water tank wet drawing machine, using LB-52 water-based drawing fluid, with an average compression rate of 17% per pass, and drawn through 8 passes of drawing dies, Pulled to φ1.68mm;

[0027] (5) Use a φ1.6mm scraping die to brighten the surface of the φ1.68mm alloy wire, and its roughness is Ra= 0.1μm;

[0028] (6) On-line ultrasonic alkaline cleaning and pickling, the pH of the alkaline tank in the ultrasonic cleaning tank is 10-14, and the pH of the acid tank is 1-5;

[...

Embodiment 2

[0039] The present invention is as follows to the preparation method of the ER5556 aluminum alloy welding wire of φ 1.6:

[0040] (1) First, use a cold rolling mill to cold-roll the φ9.5mm aluminum alloy wire rod, and roll it to φ4.0mm at one time;

[0041] (2) After cold rolling, the aluminum alloy wire rod of φ4.0mm is drawn for 2 passes on a single drawing machine, and drawn to φ2.4mm;

[0042] (3) Use a scraper to scrape the alloy wire, and adjust the scraping speed to 15m / s according to the ER5556 aluminum alloy wire;

[0043] (4) The scraped alloy wire should be finely drawn on a water tank wet drawing machine, using LB-52 water-based drawing fluid, and drawn to φ1.68mm through 10 drawing dies;

[0044] (5) Use a φ1.6mm scraping die to brighten the surface of the φ1.68mm alloy wire with a roughness of Ra=0.1μm;

[0045] (6) Carry out on-line ultrasonic alkaline cleaning and pickling, the pH of the alkaline tank in the ultrasonic cleaning tank is 10-14, and the pH of th...

Embodiment 3

[0056] The present invention is as follows to the preparation method of the ER5356 aluminum alloy welding wire of φ 1.6:

[0057] (1) First, use a cold rolling mill to cold-roll the φ9.5mm aluminum alloy wire rod, and roll it to φ4.0mm at one time;

[0058] (2) After cold rolling, the aluminum alloy wire rod of φ4.0mm is drawn for 2 passes on a single drawing machine, and drawn to φ2.4mm;

[0059] (3) Use a scraper to scrape the alloy wire, and adjust the scraping speed to 13m / s according to the ER5356 aluminum alloy wire;

[0060] (4) The scraped alloy welding wire should be finely drawn on a water tank wet drawing machine, using LB-52 water-based drawing fluid, and drawn to φ1.68mm through 10 drawing dies;

[0061] (5) Use a φ1.6mm scraping die to brighten the surface of the φ1.68mm alloy wire, and its roughness is Ra= 0.1μm;

[0062] (6) On-line ultrasonic alkaline cleaning and pickling, the pH of the alkaline tank in the ultrasonic cleaning tank is 10-14, and the pH of t...

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Abstract

The invention discloses a preparation method of an aluminum alloy welding wire, and belongs to the technical field of aluminum alloy. The preparation method of a high-performance aluminum alloy welding wire comprises the following steps of: (1) coldly and continuously rolling; (2) drawing; (3) shaving; (4) drawing a water tank; (5) carrying out light treatment; (6) cleaning by an ultrasonic wave, and (7) drying by hot air. The preparation method has the characteristics that a partial drawing procedure is replaced by a cold continuous rolling manner, and an aluminum alloy steel wire rod is subsequently processed after being rolled to have specific wire diameter once. Therefore, the drawing passes are reduced; the annealing passes are also reduced; the automation capability of the production process is improved; the utilization rate of the material is greatly improved; the production loss and the labor intensity are reduced; personnel quota is reduced; the production cost is reduced; the shaving procedure is carried out after the traditional water tank is drawn; the procedure is adjusted into the process of firstly shaving and then drawing the water tank; the welding wire is shaved when the wire diameter is large; an oxide skin at the surface of the welding wire is removed early; the welding wire is not easily broken due to high strength when the wire diameter is large; and the quality of the surface of the welding wire and the stability of the quality are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy and discloses a preparation method of aluminum alloy welding wire. Background technique [0002] For professional aluminum alloy welding wire, domestic aluminum alloy welding wire has a gap with foreign products in terms of internal quality and performance. At present, most aluminum welding wire manufacturers in China still use chemical methods to brighten the surface of aluminum alloy welding wire. These processes not only cause a certain degree of corrosion on the surface of the welding wire, but also the thick oxide scale on the surface of the welding wire cannot be completely removed. Poor, easy to absorb moisture and continue to oxidize. During welding, the spatter is serious, the chip is easy to block the contact tip, the arc is unstable, etc., the welding process and the quality of the weld are poor, which affects the performance of the welded joint and the quality of the welded par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/40B21B1/16B21C1/02B21C9/02
Inventor 王东张登峰刘春兰李鹏吕英李庭周喜顺王冬生张建华
Owner NO 52 INST OF CHINA NORTH IND GRP CORP
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