Gas, pressure and nozzle

8 field notes on this topic

No note in this topic matches that keyword.

• Nozzle blocked or worn so the gas flow becomes turbulent — the cut face shows it before any gauge does.
  Original record

  喷嘴堵塞/磨损，气流紊乱

• Partially blocked nozzle giving uneven gas delivery around the kerf.
  Original record

  喷嘴堵塞出气不均

• Dirty nozzle, uneven flow — clean or replace before chasing parameters.
  Original record

  喷嘴脏污、气流不均

• Auxiliary oxygen pressure too low, so slag removal suffers even when everything else is right.
  Original record

  氧气辅助气压偏小，排渣差

• Oxygen pressure collapses abruptly at the corner — check pressure stability, not the setpoint.
  Original record

  拐角处氧气压力骤降

• Keep oxygen pressure stable across the whole cut; a pressure dip mid-contour is what produces intermittent dross.
  Original record

  稳定切割全程氧气气压

• Swap in a known-good nozzle as a control test — it is the cheapest way to eliminate half the possible causes.
  Original record

  更换好的喷嘴

• Clean the nozzle, or fit a new one; a nozzle that has been reamed out changes the whole gas dynamic.
  Original record

  清理或更换全新喷嘴