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Serial multiple-wire submerged-arc welding process

A submerged arc welding and process technology, which is applied in the field of tandem multi-wire submerged arc welding technology, can solve the problems of low welding efficiency and partial arc, and achieve the effects of stable welding quality, reduced electric energy consumption, and small probability of welding cracks.

Inactive Publication Date: 2018-07-03
HUBEI XINSUO CONSTR
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  • Abstract
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AI Technical Summary

Problems solved by technology

The welding efficiency is low in ordinary single-wire submerged arc welding construction, and it is easy to produce "arc deflection", which brings some unfavorable factors to the welding quality control

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0017] In this embodiment, a tandem multi-wire submerged arc welding process includes the following steps:

[0018] Step 1: Select the groove form of the butt joint as V-type or Y-type or K-type or X-type two workpieces, the blunt edge of the groove is 2mm, the depth of the groove is 1 / 3 of the workpiece thickness, and the front angle of the groove Set it to 45°, set the groove back angle to 65°, and set the gap between the two workpieces to 3mm;

[0019] Step 2: Before submerged arc welding, use electrode arc welding or CO2 gas shielded welding to make a bottom, and the thickness of the bottom welding is 4mm;

[0020] Step 3: Arrange two welding wires side by side on the welding head of the welding equipment, namely the leading welding wire and the tracking welding wire, wherein the leading welding wire is arranged vertically above the groove, and the tracking welding wire is arranged above the groove at an inclination of 45°;

[0021] Step 4: The leading welding wire and th...

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Abstract

The invention relates to the field of welding processes, in particular to a serial multiple-wire submerged-arc welding process. The serial multiple-wire submerged-arc welding process mainly comprisesthe following steps that 1, a welding groove is arranged into a specified style; 2, backing welding is carried out before submerged-arc welding is carried out; and 3, welding is carried out on the groove by using an arc separating method in the mode that two welding wires are arranged side by side, specifically, the two welding wires are connected to independent power supplies respectively. According to the serial multiple-wire submerged-arc welding process, the welding quality is stable, the welding efficiency is high, and the welding power consumption of the serial multiple-wire submerged-arc welding process is saved by 20% compared with that of traditional single-wire welding; and the serial multiple-wire submerged-arc welding process has good popularization value.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a tandem multi-wire submerged arc welding technology. Background technique [0002] With the development of building steel structures in China and the improvement of steel structure design and production levels, welding plays a very important role in the production and construction of steel structures for modern industrial plant equipment, bridges and public venues. The requirements for craftsmanship are also getting higher and higher. The welding efficiency is low in ordinary single-wire submerged arc welding construction, and it is easy to produce "arc deflection", which brings some unfavorable factors to the welding quality control. Contents of the invention [0003] In order to solve the defects in the traditional single-wire submerged arc welding construction, the present invention provides a tandem multi-wire submerged arc welding process with high welding efficiency an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/18B23K9/16B23K33/00B23K103/04
CPCB23K9/18B23K9/16B23K33/004
Inventor 李超群董纯孝陈安源
Owner HUBEI XINSUO CONSTR
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