Multiple electrode gas protection arc welding method

A gas shielded and arc welding technology, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve problems such as porosity resistance degradation, and achieve the effect of excellent weld bead appearance

Active Publication Date: 2010-02-17
KOBE STEEL LTD
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the inventors of the present invention have found that, in the above-mentioned prior art, there is an appropriate range for the deposition speed of the leading electrode, the trailing electrode, and the filler wire, and especially when the deposition speed of the filler wire is not within the appropriate range, the welding In terms of bead appearance, bead shape defect prevention, and weld pool stabilization, sufficient characteristics may not be obtained, and porosity resistance may deteriorate due to these factors.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multiple electrode gas protection arc welding method
  • Multiple electrode gas protection arc welding method
  • Multiple electrode gas protection arc welding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. figure 1 Is a perspective view showing a multi-electrode gas shielded arc welding method according to an embodiment of the present invention, figure 2 It is an enlarged longitudinal sectional view showing the same molten metal part. figure 1 and figure 2 The welding method shown relates to horizontal fillet welding, but the present invention is of course not limited to this method. The lower plate 1 as the material to be welded is arranged horizontally, and the vertical plate 2 is arranged vertically on the lower plate 1. The corner between the vertical plate 2 and the lower plate 1 is fillet welded by the leading electrode 3 and the trailing electrode 4. In this case, the filler wire 5 is inserted into the molten pool 10 between the preceding electrode 3 and the succeeding electrode 4. In this embodiment, the inter-electrode distance between the leading ele...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
current densityaaaaaaaaaa
Login to view more

Abstract

The invention provides a method of multi-electrode gas shield arc welding, which comprises: taking an agent core for the gas shield arc welding as a beforeahead electrode and an afterahead electrode,setting the distance between the beforeahead electrode and the afterahead electrode of 15-50mm, inserting the stuffing welding wire in a melting bath disposed between the beforeahead electrode and theafterahead electrode, circulating an antipole current on the beforeahead electrode and the afterahead electrode, welding when circulating an positive current(welding wire cathode). At the time, the sum L+T of the beforeahead electrode melting speed L(g / min) and the afterahead electrode melting speed F(g / min) is 100-500g / min. The welding speed F(g / min) of the stuffing welding wire is 0.03(L+T) to0.3(L+T). The method can provide a welding bead with a good appearance, prevent the deformed shape of the welding bead and increase the welding bath stability and prevent the deterioration of the poreresistance.

Description

Technical field [0001] The present invention relates to a multi-electrode gas shielded arc welding method using a flux-cored welding wire, in particular to a multi-electrode 1 molten pool welding construction (a gas shielded arc welding method in which 2 electrodes form a molten pool), between two electrodes A multi-electrode gas shielded arc welding method that supplies a filler wire. Background technique [0002] In the past, in order to increase the efficiency of horizontal fillet welding in shipbuilding or bridges, the one-pool welding construction method among the multi-electrode gas shielded arc welding methods has been adopted. However, in the actual structure, there are various interference factors ((a) the gap of the fillet weld is too large, (b) the coating film thickness of the precoat primer is too large, (c) the current and voltage in the workshop Under the influence of fluctuations, etc., the uniformity and stability of the molten pool as these construction points ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/173B23K9/095
CPCB23K9/073B23K9/095B23K9/164B23K9/1735
Inventor 有田大长冈茂雄森本朋和
Owner KOBE STEEL LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap