MAG Automatic Welding Machine for Boiler Industry MIG Tube to tubesheet automatic welding machine

1.Equipment Name: Tube-tube sheet MAG automatic welding machine
2.Model:HGB-T500

3.Technical condition

Tube-tube sheet MAG automatic welding machine is used for boiler industry. This welding machine is used for the orthogonal fillet joint welding of convection bank and drum shell in flat position welding, by adopting MAG welding for the materials of carbon steel, stainless steeletc.
3.2 Equipment features
1)The welding process is completed automatically with high efficiency.
2)Adoption of collection ring structure, integrated wire, compressed air and welding gas paths to achieve unlimited rotary head.
3)Equipped with a pulse power source to realize the deep penetration weld seam with small spatter.
4)It adopts color touch screen, which can realize human-computer interface.
5)Enable automatic return of to the set position for the torch rotation. A certain angle of lap welding is processed on each welding circle. Cable intertwining does not occur to the procedures while continuously welding.
6)After pneumatically clamping, there is no need to hold by hand while welding. One operator is able to operate several welding machines together.
7)It is of small size, easy operation and simple maintenance.
3.3Technical Parameters
3.3.1Work Condition
3.3.1.1Boiler shell
Tube material is carbon steel, clean rust and oil for workpiece inside surface, (20mm surrounding the welding seam)
3.3.1.2Tube

1)Tube material: carbon steel
2)Outside diameter of tube: 32～108 mm
3)Tube thickness: 2～6mm
4)Tube ovality, Dmax-Dmin≤0.5mm
5)Range of derusting and unoil for tube end: 20mm
3.3.1.3Tube assembling
1)Perpendicularity between tube center and tube sheet ≤3°
2)Extended height of tubes before welding: 9--12 mm, tube end surface smooth without burr, Tube bridge pitch: d≥19mm
3.3.1.4Gap of tube to tube sheet hole Gap of tube to tube sheet hole: ≤1mm

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