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Power switch bus / GIS shell

Power switch bus / GIS shell

Application information


With the continuous development of high-voltage switchgear industry, SF6 metal-enclosed switchgear, internationally referred to as "Gas Insulated Switchgear" or GIS for short, plays an extremely important role in power transmission and transformation projects. Circuit breakers, sub-bus and its equipment usually use aluminum-magnesium alloy as the base metal shell. Aluminum alloy shell is one of the complete set of main products of GIS.


Power at the beginning of bus conditions:


  Workpiece material: 5052 aluminum magnesium alloy


  Workpiece wall thickness: 16mm below


  Workpiece diameter: φ1000mm the following


  Structural forms: Longitudinal longitudinal barrel, butt joint ring, pipe flange, the outer corner of the weld


  Weld requirements: X-ray film grade II qualified


Welding process and method


  Welding method: As the aluminum heat conduction, so the use of energy-intensive pulsed MIG welding process, on the one hand to improve working conditions and improve weld formation; the other hand, greatly improve work efficiency. Sometimes in order to further improve the weld surface molding, the use of AC TIG modified cover.


Welding Process Features: Through the digital expert welding parameters of the power supply, in any welding current conditions, can achieve a stable pulse-by-drop transition from the surface to obtain a uniform, beautiful weld, aluminum can also reduce the weld Over burning of metal to improve weld metal properties. In order to improve the molding, a double pulse MIG welding process can be applied to obtain the same weld shaping as TIG.


  Welding gas: argon or argon plus helium (aluminum welding is good, the composition of 30% or 50% helium, the rest of argon)


  Welding diameter: φ1.2 or φ1.6, welding wire grade: ER5356 and so on


  Longitudinal seam in the longitudinal seam plane to complete, can also be completed in the welding center, the welding center by the welding operation frame, tilt roller frame and displacement machine composition, can be completed longitudinal seam welding, but also to complete the ring seam, fillet welding Seam welding.


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Contact

portrait-icon-21393.png Contact: David Piao

Email-icon-greyscale-transparent-background-300x300.png Email: Sales@gsogaming.com    

black-globe-icon-hi.png Website:gsogaming.com

pin-8-512.png Address:No.99 North Wusongjiang Road, Kunshan, Suzhou, Jiangsu, ChinaPR 215300

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