H beam welding line is an assembly line machine that accurately welds steel beams. These welded H beams can then be used in industry or for buildings. For those who need a straight and strong H beam, this is the machine to make them. It is a fabrication tool similar to a computer numerical control, or CNC, machine.
The H beam welding line will be large or small, depending on the size of the beam that needs to be created. It works with the assistance of just one person in most instances. Using one places the beams to be welded in a vertical, horizontal or angled position. There may sometimes be a need for a tack weld to hold pieces in place. Hydraulic cylinders will control the positioning of the steel beams along the welding line. The machine has push buttons to control the process and no MIG welding is needed. For horizontal welding lines, the conveyor will be fifty percent longer than the beam length. This is to carry out the loading and assembly of one beam while loading the second.
After the first beam is loaded and in place, the welding machine operator may bring the second beam in and apply tack welds. This is to maintain good alignment during the later welding phase. As the two beams begin to enter, the operator of the welding line will be aiming the arc welder precisely at the right position. This is to weld the two pieces of metal at the right angle. Starting the conveyor, the two beams are fed into the machine at a constant rate. The operator watches closely for the right speed of the weld and overall progress.
Depending on the type of H beam welder, the stock may be fed into it. Another method is to have the welding machine be mobile and move over the stock being welded. If the machine is going to be in the first group, there will be transmitting rollers that are adjustable. The same type of machine can turn the stock over to weld at 45 or 60 degrees to make a successful joint. The submerged arc welder operates with a continuous roll of filler wire and flux. The flux may look like large grains of sand or fine rock in consistency. The flux is laid down automatically and vacuumed up automatically immediately after the hot weld. The filler wire can be doubled up to prevent having to repeat welds.
Bi-directional turning arms can be included in the H beam welding line. This is to access the other side of the butted metal pieces to finish the welding job. Some of these welding lines are also equipped with a straightening feature. Again, depending on the size of the metal beams being welded, large rollers will fix unwanted twists or curves in the finished product. An H beam is welded by these machines made for this exact purpose. Because most H beams are long, the steel they are made from may sometimes have a twist. This is due to internal forces in the metal. After being forged, the steel may not be exactly straight, but a good H beam welder will compensate for this or even correct the twist after the process of welding the beams.
Watching the process of three huge pieces of flat thick metal being forever joined is a delight for welders. Three pieces of metal come in and one piece eventually leaves. But some beam welding lines will be able to weld two seams at one time. This can speed up the process by a factor of two, creating twice the level of production.
