Pulse burial arc welding process and welding device for boiler membrane type tube panels and tube rows
A submerged arc welding machine and membrane-type technology, which is applied in welding equipment, arc welding equipment, metal processing equipment, etc., can solve the problems of increasing the manufacturing cost of fins, failing to meet the requirements of welding penetration, and increasing the difficulty of welding and assembly. Achieve the effect of improving welding quality, meeting production requirements, and improving weld formation
Active Publication Date: 2006-01-04
SHANGHAI BOILER WORKS
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The pulse submerged arc welding process for membrane type boiler tube bank features that the welding process includes the steps of: setting welding current, welding voltage and welding speed in the welding power supply; regulating the pulse frequency, pulse width ratio, base current and voltage, peak current and voltage in the arc pulse controller; regulating the relative positions of water cooling wall and the fins on the tracks of the welding machine and clamping the water cooling wall and the fins with the fixture; moving the beam to the end of the water cooling wall and regulating the angle of welding gun and welding wire; and welding while moving the beam until completing the welding of the whole water cooling wall pipe. The welding apparatus is one pulse submerged arc welding machine comprising power supply, frame, welding wire feeding mechanism, welding wire and fixture, and features that each welding power supply is provided with one arc pulse controller.
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