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Two-sides arc-welding device based on welding wire diffluence and welding method thereof

An arc welding and welding wire technology, applied in arc welding equipment, electrode support devices, welding equipment, etc., can solve the problems of welding seam overburning and welding penetration, narrow welding parameter range, shallow arc welding penetration, etc., and achieve small welding deformation. , The effect of narrow heat shadow area and large weld penetration

Inactive Publication Date: 2009-03-25
HARBIN ENG UNIV
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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 method that can not only solve the problems of shallow penetration, wide heat-affected zone, and low deposition rate of conventional arc welding, but also solve the problems of over-burning of weld seam, weld penetration, and electrode burning that are easy to occur in double-sided arc welding. The device and its welding method with defects such as serious damage and narrow welding parameter range

Method used

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  • Two-sides arc-welding device based on welding wire diffluence and welding method thereof
  • Two-sides arc-welding device based on welding wire diffluence and welding method thereof

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Experimental program
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specific Embodiment approach 1

[0025] combine figure 1 , it is an embodiment of melting electrode-non-melting electrode double-sided arc welding based on welding wire shunting. This embodiment consists of welding power supply 1, melting electrode welding torch I2, welding wire 3, wire feeder 4, non-melting electrode welding torch II5, It consists of tungsten electrode 6, wire feeder 7, filler wire 8 and sliding rheostat 9, etc. It includes a melting pole welding torch I2, and the other is a non-melting pole welding gun II5. Before welding, the melting pole welding gun 2 and the non-melting pole welding gun 5 are symmetrically placed on the upper and lower sides of the workpiece 10 respectively, and the electric terminal of the melting pole welding gun I2 It is connected to the positive pole of the welding power source 1, and the non-melting electrode welding gun II5 is connected to the negative pole of the welding power source 1, and the filler wire 8 is sent into the arc 11 and the molten pool formed by th...

specific Embodiment approach 2

[0032] In conjunction with Fig. 3, it is the embodiment of non-melting pole-non-melting pole double-sided arc welding based on welding wire shunting. Pole 6, wire feeder 7, filler wire 8 and sliding rheostat 9 and so on. It includes two non-melting pole welding guns, i.e. non-melting pole welding gun I22 and non-melting pole welding gun II5. The electric terminal of the welding torch I22 is connected to the negative pole of the welding power source 1, the electric terminal of the non-melting electrode welding torch II5 is connected to the positive electrode of the welding power source 1, and the filling welding wire 8 is fed into the non-melting electrode welding torch I22 by the wire feeder 7. In the arc 21 or the molten pool, the filler wire 8 is connected to the positive pole of the welding power source 1 through the sliding rheostat 9, and plays the role of shunting and preheating the welding wire 8.

[0033] The welding steps of the non-melting pole-non-melting pole doub...

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Abstract

The invention provides a double-sided arc welding device and a welding device, which are based on welding wire current shunting. The invention comprises a power supply, a welding torch I, a welding torch II, a wire feeder and a slide rheostat. At least one of the welding torch I and the welding torch II is a non-melt electrode welding torch. The welding torch I and the welding torch II are symmetrically arranged on the upper and lower side of a workpiece. The electric connection ends of the welding torch I and the welding torch II are respectively connected with a positive electrode and a negative electrode of the power supply. The wire feeder deliver the filling welding wire to the electric arc or melting pool formed by the welding torch, and the filling welding wire is connected with the power supply through the slide rheostat. The adoption of the invention can solve the problems of shallow welding penetration depth, wide heat-affected zone and low deposition rate, and also solve the double-sided arc welding prone weaknesses of the welding seam being overheated and penetrated, electrodes being badly destroyed and narrow welding parameter range. The invention has distinct advantages that the welding penetration depth and the deposition rate are enhanced, the welding process is stabilized, and the quality of the welding seam is improved.

Description

(1) Technical field [0001] The invention relates to a welding device, and the invention also relates to a welding method. (2) Background technology [0002] In the conventional arc welding process, the arc is always established between the electrode and the workpiece, and the welding current acts on the workpiece through the arc, which can easily lead to problems such as shallow penetration of the weld, wide heat-affected zone, and large welding deformation. To improve weld penetration or welding efficiency (welding speed or deposition rate), it is necessary to increase the welding current; and as the welding current increases, the heat input of the arc to the workpiece also increases correspondingly, forming a molten pool with high temperature, Wide heat-affected zone and poor weld formation. Different from conventional arc welding, single-power double-sided arc welding process, the workpiece is not connected to the welding power supply, two welding torches are connected t...

Claims

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Application Information

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IPC IPC(8): B23K9/02B23K9/133B23K9/28B23K9/235B23K9/095
Inventor 苗玉刚姚竞争李锋
Owner HARBIN ENG UNIV
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