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A technology of network cabinets and welding processes, which is applied in welding equipment, metal processing, metal processing equipment, etc., can solve the problems of large metal temperature gradient, easy bending deformation, platform detachment, etc., achieve good corrosion resistance, avoid surface Defects, effects of welding process stabilization
Active Publication Date: 2017-01-18
昆山力盟机械工业有限公司
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During the welding process of aluminum alloy sheet, due to its large thermal conductivity and linear expansion coefficient, the temperature gradient between the vicinity of the molten pool and the surrounding metal is large during the welding process, and the vicinity of the weld is prone to deflection due to high temperature. Deformation, the metal under the arc rises up, causing separation from the platform, resulting in arc extinguishing, sticking of the welding torch, causing interruption of the welding process
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[0014] The present invention will be further described below in conjunction with specific embodiments.
[0015] A welding process for an aluminum alloy network cabinet, comprising the following steps:
[0016] 1) Material preparation: prepare the front side panel, rear side panel, left side panel and right side panel for forming the side wall of the network cabinet, and configure a vertical square frame as a frame support, the front side panel, the The rear side plate, the left side plate and the right side plate are all aluminum alloy plates with a thickness of 12 mm; one end of the front side plate, the rear side plate, the left side plate and the right side plate is all formed with inner folds, Positioning holes are provided on the inner folds, and the above-mentioned front side panels, rear side panels, left side panels and right side panels are hung on the front side panels, rear side panels, and plate, the left side plate and the right side plate correspond to the upper...
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Abstract
The invention discloses a welding technology for an aluminum alloy network cabinet, and belongs to the technical field of welding. The welding technology includes the steps of 1, material preparing, 2, pre-welding cleaning, 3, pre-welding preheating, 4, welding work, 5, post-welding cleaning and the like. A welding wire comprises, by mass, 7% of Mg, 0.5% of Mn, 0.54% of Ti, 0.7% of Zn, 0.8% of Cr, 0.6% of Zr, 2% of Sc, 0.4% of Fe, 0.45% of Si, 0.74% of Li, 1% of B and the balance Al. Weld joints, processed with the welding technology, of the network cabinet are attractive in appearance, the welding process is stable, and no macro defect exists on the surfaces of the weld joints; as the material components of the welding wire are optimized, the welding wire has the excellent welding technological performance, and a welded connector is high in strength and good in corrosion resistance; as the welding technology is optimized, surface defects are avoided, and welding deformation is reduced; the welding efficiency is high, and the welding speed is higher than 1 mm / min.
Description
technical field [0001] The invention belongs to the field of welding technology, and more specifically relates to a welding process of an aluminum alloy network cabinet. Background technique [0002] The network cabinet is widely used in the installation and placement of 19-inch international standard and ETIS standard equipment and system integration of 19-inch standard equipment, providing reliable installation, support, power supply, ventilation devices for system equipment, and effective protection for system equipment. It is suitable for the integration of engineering control systems in various industries such as computers, data, information, electronics, finance, and electric power. Network cabinets are generally composed of cabinets, options, accessories, etc. [0003] Aluminum and its alloys are one of the most widely used non-ferrous metals. Aluminum alloy materials have the advantages of high specific strength, corrosion resistance, good electrical and thermal cond...
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