Technique of double wire hidden arc welding

A technology of submerged arc welding and welding process, which is applied in the direction of arc welding equipment, welding medium, manufacturing tools, etc. It can solve the problems of poor welding quality and complicated process, and achieve the effect of good welding quality, high welding efficiency and low weld seam

Active Publication Date: 2007-12-26
XIAN XIDIAN TRANSFORMER
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Problems solved by technology

[0008] The object of the present invention is to provide a kind of double-wire submerged arc welding process, which solves the technical problems of complicated procedures and poor welding quality in the background technology

Method used

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Embodiment Construction

[0034] The present invention can be realized by a twin-wire welding machine. Specifically, it is advisable to adopt a single-power-supply double-wire submerged arc welding machine. The implementation steps are as follows:

[0035] 1) Preliminary selection of welding parameters:

[0036] (1) Select the welding method: the welding method of double wire submerged arc welding is adopted.

[0037] (2) Select the welding method: select the welding method according to the height k of the welding angle. When k<12, double wire single arc is used, when k≥12, double wire double arc is used.

[0038] (3) Select the diameter of the welding wire: select the diameter of the welding wire Φ according to the height k of the welding angle, 2mm<Φ<4mm. The preferred range of wire diameter Φ: 2.0mm<Φ<3.0mm. The optimal value of wire diameter Φ is 2.5mm.

[0039] (4) Roughly set the welding parameters: according to the height k of the welding angle and the diameter of the welding wire Φ, the par...

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Abstract

The invention relates to a double thread submerged arc welding technology that includes the following steps: selecting primary welding parameter: adopting double thread submerged arc welding method; selecting welding method according to leg height k; selecting welding thread diameter phi according to k, selecting 2mm B23K 9/18 B23K 9/095 B23K 35/04 0 3 2 2006/6/20 101092003 2007/12/26 000000000 Xidian Transformers Co., Ltd., Xi'an Xi-an 710077 Zhai Weidong You Yu xubeng 61211

Description

technical field [0001] The invention relates to a welding process of a weld seam, in particular to a one-time forming welding process of a long right-angle weld seam. Background technique [0002] At present, there is no special equipment and mature welding process for the reinforced long right-angle weld of the transformer oil tank. A ±500kV converter transformer and flat wave reactor, the oil tank structure is barrel type, the longitudinal channel steel is used to strengthen a=5mm, and the height of the welding angle is 7-8mm. Therefore, the welding amount of long right-angle welding seams is particularly large, and the quality Higher requirements. The traditional welding method mainly has the following shortcomings or deficiencies: [0003] 1. The process is complicated and the efficiency is low. It needs to be welded at least three times to complete, not only the process is complicated, but also the efficiency is low. For example: a 4m weld generally takes 40 minutes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/18B23K9/095B23K35/04
Inventor 翟卫东尤煜
Owner XIAN XIDIAN TRANSFORMER
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