A bench AS303-2 for TIG welding longitudinal seams of thin-walled tubes.

    AS303-2 intends for automatic TIG welding with or without filler wire longitudinal joints of thin-walled tubes from low-alloyed and stainless steels up to 1000 mm long, diameter - 90-500 mm, thickness - 0,5...1,5 mm.
    AS303-2 consists of:
  1. Frame;
  2. Mechanism of longitudinal moving of the torch;
  3. "Key row" mechanism of fixation of welding edges (pneumatic drive);
  4. Mechanisms of torch raising with a manual corrector of its position;
  5. Control system;
  6. Operator console;
  7. Kit of welding equipment;
  8. Cooling system;
  9. Pneumoapparatus etc.
The outlook of the bench AS303-2.
    Technical dates:
    Regulating range of welding current, A
    Regulating range of welding speed, mm/s
    Rated value of the torch path deflection, mm, at most
    Mechanisms drive of products edge-fixing and torch raising
    Clamps amount at 1000 mm tube length, pc
    10 x 2
    Protective gas
    Air pressure, MPa, not less
    Cooling of the torch and the pad
    Overall dimensions of the bench cell, mm
    AS303-2 peculiarities:
  1. Programmed control all mechanisms and devices of the set, as well as diagnostics of their condition, is realized by the Schneider Electric controller.
    Base program ensures: moving the torch in the welding start position, high-frequency starting of the arc, delay of moving the torch for shaping a puddle, moving the torch with necessary speed, crater welding, raising of the torch and returning it on march speed in the source position.
    During the work set processes controls: the position of the torch, pressure of air in pneumosystem, actuation of pneumatic drives.
  2. It has possibility to preset two and more modes of welding by means of the task board modes for the quick set readjustment to the welding tubes of different thickness;
  3. Continuous adjustment of welding parameters;
  4. Quick set readjustment to the welded tubes with different lengths;
  5. This bench is an analogue of a bench AS308 for MIG/MAG welding of sidewalls from low-carbon steels;
  6. There is a performance of this bench a set AS306 with short-cut frame for the welding short sidewalls with smaller diameter. It has a special adjustment for setting the detailes at the bench.
  1. More than fifteen machines in 1999 - 2007 in Kiev, Moscow, St. Petersburg, Riga, Kharkov etc.