Large aluminum alloy tank butt joint girth welding method based on riveting virtual point method process

A technology of aluminum alloy tank body and welding method, which is applied in the direction of welding medium, welding equipment, welding equipment, etc., can solve the problems of low welding process efficiency, unstable welding quality, etc., achieve reasonable step design, reduce labor intensity, and improve welding the quality of the effect

Pending Publication Date: 2020-11-17
陕西金鑫电器有限公司
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Problems solved by technology

[0004] Aiming at the problems in the prior art that arc root cleaning is required after welding groove welding, resulting in low efficiency of the welding process and unstable welding quality, the present invention provides a welding method and riveting spot welding that do not require arc root cleaning after welding method

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  • Large aluminum alloy tank butt joint girth welding method based on riveting virtual point method process
  • Large aluminum alloy tank butt joint girth welding method based on riveting virtual point method process
  • Large aluminum alloy tank butt joint girth welding method based on riveting virtual point method process

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0024] A method for butt girth welding of a large aluminum alloy tank body based on a riveting virtual point method process, comprising the following steps:

[0025] S1. Round support of aluminum alloy tank body: use 40mmX40mm aluminum backing plate to realize round support of aluminum alloy tank body. The roundness of tank support roundness is controlled within the range of 3mm.

[0026] S2. Calibration circle inspection: Before turning to CNC, it is necessary to correct and check the support cir...

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Abstract

The invention relates to the technical field of welding, in particular to a large aluminum alloy tank butt joint girth welding method based on a riveting virtual point method process. The method adopts X groove design, adopts the riveting virtual point method process during assembly and welding, does not perform spot welding at the root of a groove, adopts a bridging method for spot welding, and greatly improves the welding efficiency. The method has the following advantages that (1) the procedures of electric arc back chipping and polishing are omitted, and the production efficiency is improved by about 48%; (2), the influence of manual back chipping is avoided, and the weld joint quality is improved; the one-time inspection qualification rate of X-ray and ultrasonic flaw detection of a weld joint is increased to 98% or above; (3) a part of cost of welding wires, argon, grinding wheel abrasive discs, power consumption, weld joint repair and the like is saved, and the production cost of enterprises is reduced; and (4), the working environment is improved, and the labor intensity is reduced.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a welding method for butt joint girth seam of a large aluminum alloy tank body based on a riveting virtual point method process. Background technique [0002] A large number of aluminum alloy tanks are used in high-voltage electrical switchgear, and welding is required to form these aluminum alloy tanks. For aluminum alloy tank girth welding with large diameter and plate thickness, welding is difficult, and such butt girth joints must meet the secondary qualification requirements of X-ray and ultrasonic flaw detection at the same time. [0003] In the existing welding technology, the V-shaped groove is mostly used for the welding of the circumferential seam of the tank body. Before welding, the internal groove is preheated, the internal groove is welded first, the root is cleaned from the external artificial arc, polished, and then preheated before welding. Using this kind of w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/167B23K9/173B23K9/028B23K9/235B23K33/00B23K35/38B23K103/10
CPCB23K9/028B23K9/167B23K9/173B23K9/235B23K33/006B23K35/383B23K2103/10
Inventor 白焰仵文辉张金宝李如斌艾晶
Owner 陕西金鑫电器有限公司
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