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Aluminum bus full-section fusion welding method

An aluminum busbar, full-section technology, used in welding equipment, welding equipment, welding accessories, etc., can solve the problem of difficult full-section fusion welding of aluminum busbars, reduce welding costs, reduce black voltage, and reduce power consumption per ton of aluminum Effect

Active Publication Date: 2021-06-15
ZHENGZHOU JINGWEI TECH & IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a full-section fusion welding method for aluminum busbars, aiming to solve the technical problem that it is difficult to achieve full-section fusion welding of aluminum busbars in the prior art, and then realize the improvement of welding quality and efficiency and the reduction of costs of aluminum busbars

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Embodiment 1

[0030] Embodiment 1: A full-section fusion welding method for an aluminum busbar, comprising the following steps:

[0031] (1) The composition of the aluminum busbar used is: AL≥97%, Fe≤0.3%; the width of the welded aluminum busbar is: 250mm, and the height is 220mm.

[0032] (2) Clean the parts to be welded: eliminate moisture, oil, surface oxide layer, etc.

[0033] (3) Adjust the welding seam spacing: reserve a 35mm welding seam between the aluminum bus bar workpieces to be welded, and the welding seam is a "standing seam".

[0034] (4) Construct weld pool: install welding fixture, arc ignition device, arc extinguishing device and gap filling refractory cement at the weld position, so that the weld seam forms a cavity, and the periphery of the weld seam is tightly sealed.

[0035] (5) Arrangement of conductive tip and aluminum welding wire: the number of conductive tip is related to the width of the aluminum busbar, with one conductive tip distributed every 50mm on average...

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Abstract

The invention discloses an aluminum bus full-section fusion welding method, and aims to solve the technical problem that full-section fusion welding of an aluminum bus is difficult to realize in the prior art. Based on the material characteristics of the aluminum bus, proper welding process parameters are matched, a special adjusting agent is developed, and resistance heat generated by current passing through conductive liquid slag is used as a heat source, so that an aluminum welding wire and the aluminum bus are continuously molten for fusion welding. The method has the advantages of high welding efficiency and low welding cost, and also has the comprehensive advantages of excellent welding seam conductivity, large effective welding area, convenience in operation, stable welding seam quality, no influence by a magnetic field and the like; and when the method is applied to aluminum bus welding of electrolytic aluminum enterprises, the welding efficiency is prominently improved, the construction cost is reduced, the black voltage in production operation is reduced, and the enterprise economic benefit is improved.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a full-section fusion welding method of an aluminum busbar. Background technique [0002] At present, the traditional aluminum busbar welding method is "staggered plate" welding; it is to weld aluminum plates with a thickness of about 10 mm in a staggered manner layer by layer; because the effective welding area of ​​the weld is limited, the quality of the weld is not suitable for control, generally only 80% of the weldments are acceptable and time consuming. In recent years, the application of "powder clad welding" welding technology in aluminum busbar welding has appeared, but due to the high welding cost and unstable weld quality, "powder clad welding" welding technology has not been used in aluminum busbar welding. There is a wide range of applications. [0003] The patent document CN1788885A discloses a method for welding aluminum materials by casting high-temperature mol...

Claims

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Application Information

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IPC IPC(8): B23K9/235B23K9/32B23K9/00B23K37/00
CPCB23K9/235B23K9/32B23K9/00B23K37/003
Inventor 冯晓强于长军孙哲白庆国
Owner ZHENGZHOU JINGWEI TECH & IND
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