C - USE
8695 9007 / F
C-14
MEC 4
8 - MAGNETIC POLES OPTION
This is a special Ø18 nozzle with integrated magnetic poles that allows work with
arc oscillation or deviation.
TIG arc oscillation makes it possible to:
improve control over the transfer of energy to the workpiece.
move back the limit at which surface defects occur.
weld imperfectly squeezed workpieces more easily.
increase the surface of the workpiece subjected to the flow of heat from the
TIG arc.
With equal power, penetration is reduced compared to stable TIG arcs; that can be
of particular benefit when the aim is to deposit precious materials with low dilution or
when multi-pass welding is needed or even only a second pass with a very fine finish
is required on visible welds in rust-proof boilerwork.
The magnetic deviation of the TIG arc towards the front extends its impact and
helps increase the electrical power used.
That can thus allow noticeably higher execution speeds. Further, an arc
conditioned in this manner will be more stable, even when the tip of the electrode
undergoes operating wear.
MAGNETIC NOZZLE ASSEMBLY
15
Nozzle with magnetic pole
16
Magnetic circuit
17
Coil
