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Method for automatically welding double wires through vertical-position fillet welding

An automatic welding and vertical angle technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of high labor intensity, low welding efficiency, and long overall completion time.

Inactive Publication Date: 2017-06-27
GUANGZHOU SHIPYARD INTERNATIONAL LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a double-wire automatic welding method for vertical corner joints, so as to solve the defects of poor welding quality stability, long overall completion time, low welding efficiency and high labor intensity in the prior art

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  • Method for automatically welding double wires through vertical-position fillet welding
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  • Method for automatically welding double wires through vertical-position fillet welding

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Embodiment Construction

[0023] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0024] The invention provides a double-wire automatic welding method for vertical corner joints, which is mainly used for vertical corner joints with a plate thickness range of 10-20 mm and an assembly gap of 0-5 mm in the shipbuilding industry (it can also be used in other steel structure industries) When welding, two welding torches arranged up and down are used to weld a vertical fillet weld at the same time. The upper welding torch is responsible for backing to ensure the fusion of the base point of the weld, and the lower welding torch is responsible for swinging the cover surface to ensure that the weld Seam size and good shape, so as to realize th...

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Abstract

The invention relates to the technical field of shipbuilding, in particular to a method for automatically welding double wires through vertical-position fillet welding. The method is mainly applied to welding through a vertical-position fillet welding joint in the shipbuilding industry (and other steel structure industries), and the middle plate thickness range and the assembly clearance of the vertical-position fillet welding joint reach 10-20 mm and 0-5 mm correspondingly. In the welding process, one vertical-position fillet weld is welded by adopting two welding guns simultaneously; the two welding guns are arranged in an upper-lower manner; the upper welding gun is responsible for backing welding, thereby guaranteeing the fusion of weld base points; the lower welding gun is responsible for swing and cosmetic welding, thereby guaranteeing the weld size and the good formation; and accordingly, a ship-structure vertical-position fillet weld of which the welding foot size is 10-14 mm can be welded efficiently and automatically, the man-hours for welding and grinding of the vertical-position fillet weld in the shipbuilding process as well as the labor intensity can be effectively reduced; and the welding efficiency and quality of the vertical-position fillet weld can be improved.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to an automatic double-wire welding method for standing corner joints. Background technique [0002] In the process of ship construction, especially in the construction of cargo oil tankers, vertical fillet welds with a length of more than 10 meters often appear. A standing fillet joint welded using a single pass weld. According to the existing process, semi-automatic CO 2 Gas shielded welding is used for welding. In order to meet the size requirements of the welding feet, more than two multi-layer and multi-pass welding are generally required. [0003] Using semi-automatic CO 2 The disadvantages of welding by gas shielded welding are: first, semi-automatic CO 2 Gas shielded welding is a manual operation, which requires high skills and sense of responsibility of the welder itself. The slag inclusions or defects generated during the welding process must be removed before the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/16B23K9/025
CPCB23K9/025B23K9/16
Inventor 江泽新吴强张松张勇军邹国威
Owner GUANGZHOU SHIPYARD INTERNATIONAL LTD
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