Welding On Boiler. Adequate ventilation is essential supported by the welder wearing an air- supplied respirator when necessary. The information contained in this article pertains to vessels fabricated utilizing Code Case 1204-11 or Section VIII Div.
Robotic line for SAW welding of large tanks. Ever wonder how boiler tubes are put in place on a boiler. WELDING OF BOILERS PRESSURE VESSELS AND PRESSURE PIPING d issue to any pressure welder in his employ a symbol for stamping his work and notify the department to whom such symbol is issued.
In the case of a boiler drum for example after welding of the drum joints the entire drum can be heated to a specified temperature 590C or above in a special furnace for a definite period of time.
Make sure to make the horizontal tie-ins last on the vertical beadsthat way you have a transition of weld metal on starts and stops to minimize potential undercutting craters etc. Boilers are present in buildings factories and ships to heat liquids under high pressure for the creation of energy. Effective January 1 2013 ASME is replacing. 3 No welding shall be done upon any boiler pressure vessel or pressure piping.