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Machining method used for stably welding welding wire of pipeline die

A processing method and welding wire technology, applied in welding media, welding equipment, metal processing equipment, etc., to avoid welding defects, reduce wire feeding resistance, and achieve smooth welding effects

Pending Publication Date: 2020-02-21
哈焊所华通(常州)焊业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there are few studies on the influence of the mechanical properties of the welding wire on the performance of the welding wire and the wear of the contact tip

Method used

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  • Machining method used for stably welding welding wire of pipeline die
  • Machining method used for stably welding welding wire of pipeline die
  • Machining method used for stably welding welding wire of pipeline die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Drawing and tempering: H08C steel (optimal composition) is selected, the original steel size is 5.5mm, after 12-15 times of drawing, during the drawing process, the welding wire drawn to 3.2mm is drawn at 750 Keep warm for 8 hours at ℃, cool to room temperature naturally, draw after treatment, draw to 2.3mm and then hold at 750℃ for 8 hours, cool to room temperature naturally, and after tempering, the tensile strength of the welding wire will be at 700 ~800MPa.

[0027] (2) Calibration: Calibrate the tempered welding wire overspray die to 1.6mm, tolerance ±0.005~±0.04MM;

[0028] (3) Scraping: Cotton thread wrapped scraping, cotton thread wrapped welding wire 5-8 times, reverse the direction of welding wire movement, cooperate with scraping equipment to clean the residual dirt on the surface of welding wire;

[0029] (4) Oiling: process the welding wire through the oil box, and blow it with compressed air after oiling to make the oiling even, and get the pipeline m...

Embodiment 2

[0032] (1) Drawing and tempering: H60C steel is selected, the size is 5.5mm, after drawing, after 12-15 times of drawing, during the drawing process, the welding wire drawn to 3.2mm is drawn at 756°C Lower tempering treatment for 7.5 hours, naturally cool to room temperature, draw after treatment, draw to 2.3mm and then temper at 780°C for 8 hours, naturally cool to room temperature, after tempering, the tensile strength of the welding wire At 700-800MPa;

[0033] (2) Calibration: Calibrate the tempered welding wire at 1.6mm with a spraying die, with a tolerance of ±0.005~±0.04mm;

[0034] (3) Cotton thread wrapping and scraping: Cotton thread wraps the welding wire for 5-8 turns, reverses the moving direction of the welding wire, cooperates with scraping equipment, and cleans the residual dirt on the surface of the welding wire;

[0035] (4) Oiling: process the welding wire through the oil box, apply anti-rust oil, and then blow it with compressed air to make the oiling even...

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Abstract

The invention belongs to the field of welding wire machining and particularly discloses a machining method used for stably welding a welding wire of a pipeline die. The welding wire is mainly subjected to paying off, drawing, tempering, drawing, tempering, drawing, sizing, cotton wrapping scraping, oil applying and finished product obtaining. The tensile strength of the finished welding wire is controlled to range from 700 MPA to 800 MPA, surface oil has the rustproof performance on one hand, and in addition, the electric conductivity can also be increased in the welding process. Compared withother copper plating welding wires, abrasion to an electricity conduction nozzle is small during welding, long-time continuous welding can be achieved, it is ensured that one-time forming can be achieved when the pipeline die is welded, and welding defects are avoided.

Description

technical field [0001] The invention belongs to the field of welding wire processing, and in particular relates to a processing method for stabilizing welding wire for pipeline molds. Background technique [0002] The pipeline used to transport gas and liquid was only a few meters long, but with the advancement of industry, the pursuit of economic benefits and the improvement of work efficiency, the pipeline has developed in the direction of length, which puts forward higher requirements for the mold for producing pipelines. The pipe is long and needs to be inserted into the pipe for welding, so it needs to be formed at one time, and there can be no pause in the middle. The longer the pipe mold, the higher the quality of the welding wire. It is necessary to improve the welding stability during welding with the welding wire, and the wear on the contact tip should be smaller, so that it can support long-term welding. If there is a pause in the welding process, welding defects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/40
CPCB23K35/0261B23K35/40
Inventor 居程亮陈树居晓锋李振华
Owner 哈焊所华通(常州)焊业股份有限公司
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