Submerged arc welding
The submerged arc welding process, conforming to EN ISO 1-121, transforms the traditional welder's role into that of a specialized machine operator.
Submerged Arc Welding enables a significant material deposition per welding pass, thereby considerably reducing welding times. Unlike other welding processes, no gap (air) is left between the two parts to be welded (joints); instead, the machine's penetration power from one side, followed by the back gouging from the other, ensures the complete welding of the joint.
Submerged Arc Welding Course
The submerged arc welder, as is evident, becomes a highly specialized machine operator; very few in Italy are capable of operating this machine, despite it being a highly sought-after role in the job market. Our Submerged Arc Welding Course enables you to become a submerged arc welding specialist, capable of precisely adjusting, operating, mastering, and controlling this particular welding machine. At the end of the welding course, you will take an exam, and upon successful completion, we will issue the Submerged Arc Welding Certificate from the Italian Welding Institute.
Submerged arc welding school
Our Submerged Arc Welding School is the only one in Italy to train highly specialized welders, ready to work in companies, starting from scratch.
Submerged arc welding machine
The submerged arc welding machine is composed as follows: a current generator of at least 1000 amperes is mounted at the base of a "manipulator," which is a metal arm with vertical and horizontal movement. The manipulator is mounted on a swivel base, usually manual. The vertical arm, at its extreme tip, holds a small hopper containing the "welding flux," which, thanks to a diffuser, ensures the flux is deposited on the joint/workpiece to be welded.
Behind the hopper, a wire feeder spool is positioned, where the wire coil (electrode) is placed to continuously feed the weld.
The submerged arc welding machine, complete with all the aforementioned parts, is mounted on a carriage with iron wheels that moves on rails. This allows for the machine's movement, which, in the case of horizontal welding, will advance at the speed programmed by the submerged arc welder. The welding machine, thus equipped and expertly operated by a skilled submerged arc welder, deposits the filler metal into the joint/workpiece with extreme precision.
The submerged arc welding machine works in conjunction with an essential piece of equipment: the turning rolls, a rotating machine where the workpiece to be welded is positioned. The turning rolls will be programmed in sync with the advancement of the submerged arc welding machine, ensuring that the weld deposition in the joint is automatic and linear.
Unlike other welding processes, no welding flash will be visible because the molten pool will be entirely submerged by the flux. This flux serves the dual function of acting as an antioxidant and simultaneously imparting specific properties to the weld pool for the particular application. The turning rolls will rotate at the speed predetermined by the submerged arc welder, while the wire will emerge from the welding machine's nozzle, and by short-circuiting within the joint, it will initiate the weld deposition.
For more information on the submerged arc welding course offered by our welding school, please do not hesitate to contact us.
