Application of double-TIG welding method to implementation of thick plate welding

A welding method and welding system technology, which is applied in the field of welding and TIG welding, can solve the problems of insignificance and increase the effect of welding penetration, and achieve the effect of improving welding penetration

Inactive Publication Date: 2015-06-17
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process arranges two TIG welding torches in front and behind along the welding direction, which can significantly increase the welding speed and increase the deposition rate. The plates still need to be beveled

Method used

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  • Application of double-TIG welding method to implementation of thick plate welding
  • Application of double-TIG welding method to implementation of thick plate welding
  • Application of double-TIG welding method to implementation of thick plate welding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This welding process is especially aimed at welding workpieces with a thickness of 10mm, without opening grooves.

[0037] Along the welding direction, the first welding torch 12 is located at the front end, and the second welding torch 22 is located at the rear end. During welding, the first tungsten electrode 11 plays the role of initially forming the weld pool, and the second tungsten electrode plays the role of increasing the penetration depth and realizing the penetration of the plate.

[0038] Before welding, use the welding torch attitude adjustment device 4 to adjust the first welding torch 12 and the second welding torch 22 respectively, the angle between the first tungsten pole 11 and the vertical line of the plane to be welded is α, the second tungsten pole 21 and the plane to be welded The included angle is β, and the distance between the first tungsten pole, the second tungsten pole and the workpiece surface is d 2 . Let the angle α be 0°, the angle β be ...

Embodiment 2

[0042] This welding process is especially aimed at welding workpieces with a thickness of 14mm, without opening grooves.

[0043] Along the welding direction, the first welding torch 12 is located at the front end, and the second welding torch 22 is located at the rear end. During welding, the first tungsten electrode 11 plays the role of initially forming the weld pool, and the second tungsten electrode plays the role of increasing the penetration depth and realizing the penetration of the plate.

[0044] Before welding, use the welding torch attitude adjustment device 4 to adjust the first welding torch 12 and the second welding torch 22 respectively, the angle between the first tungsten pole 11 and the vertical line of the plane to be welded is α, the second tungsten pole 21 and the plane to be welded The included angle is β, and the distance between the first tungsten pole, the second tungsten pole and the workpiece surface is d 2 . Let the angle α be 0°, the angle β be ...

Embodiment 3

[0048] This welding process is especially aimed at welding workpieces with a thickness of 16mm, without opening grooves.

[0049] Along the welding direction, the first welding torch 12 is located at the front end, and the second welding torch 22 is located at the rear end. During welding, the first tungsten electrode 11 plays the role of initially forming the weld pool, and the second tungsten electrode plays the role of increasing the penetration depth and realizing the penetration of the plate.

[0050] Before welding, use the welding torch attitude adjustment device 4 to adjust the first welding torch 12 and the second welding torch 22 respectively, the angle between the first tungsten pole 11 and the vertical line of the plane to be welded is α, the second tungsten pole 21 and the plane to be welded The included angle is β, and the distance between the first tungsten pole, the second tungsten pole and the workpiece surface is d 2 . Let the angle α be 0°, the angle β be ...

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Abstract

The invention discloses an application of a double-TIG welding method to implementation of thick plate welding. A first welding gun provided with a first tungsten electrode and a second welding gun provided with a second tungsten electrode are installed on a welding machine, the first welding gun and the second welding gun are arranged in the welding direction in a front-back mode and are connected through a guide rail, and each welding gun is provided with a welding gun posture adjustment device, a protective gas system, a water cooling system and a welding power source. Through space arrangement of two welding guns and welding parameter matching of the two tungsten electrodes, the first tungsten electrode plays a part in primarily forming a welding pool, the second tungsten electrode plays a part in increasing the depth of fusion, and therefore a thick plate workpiece can be thoroughly welded at a time.

Description

[0001] This application is a divisional application for a double TIG welding system for thick plate parts and its welding method. The application number of the original application is 2013102214956, and the original application date is June 5, 2013. Double TIG welding system and its welding method for parts. technical field [0002] The present invention relates to welding technology, more specifically, relates to the field of TIG welding technology, and is aimed at the application of double TIG welding method for thick plate parts in implementing double TIG welding of thick plates. Background technique [0003] Non-melting electrode gas shielded welding (TIG welding) is very popular in modern welding methods. Its advantage is that the weld quality is good, and it is generally used for precision welding and high-quality welding. Its main disadvantages are low welding efficiency, limited current carrying capacity of tungsten electrode, restricted arc power, low deposition rat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/167B23K9/02B23K9/12
Inventor 罗震李洋李会军冯梦楠赵春凤
Owner TIANJIN UNIV
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