Precise purging is essential for controlling weld quality, particularly when welding high-alloy, corrosion-resistant materials that are highly sensitive to oxygen in the welding process.
Our oxygen analysers can be connected to the Tigtronic Orbital and Integral controllers for monitoring ID Purge quality as part of the programmed weld schedule parameters, values measured during welding will also be recorded as part of the weld data recording facility. The maximum oxygen value (in ppm) is entered in the controller (typically 20-30ppm). Welding will not commence until the measured value drops below the programmed threshold.
Since oxidation starts at around 30ppm analysers with values displayed as a percentage are not recommended (i.e. 0.1% = 1,000ppm).
Examples of ppm Vs oxidation levels:
Vienna / Ausria 12. - 15.10.2010 Hall A / Stand-No. A0513
