STAMOS S-Multi 41 Bedienunsanleitung Seite 21

5
TIG-/PLASMA TORCH CONNECTION
Unlike the metal-inert gas MIG/MAG, in TIG welding the arc burns bet-
ween a non-consumable tungsten electrode and the base material. In
order to protect the tungsten electrode and the weld pool it is necessa-
ry to use inert gases, such as argon or helium or gas mixtures with non-
oxidizing components. TIG welding may be used for all weldable metals.
The selection of the current, polarity and protective gas depends on the
base material. This machine works with a TIG torch, which is equipped
with a tungsten electrode and uses the additional protection of argon
gas. Depending on the material, a filler material is supplied. Our welding
specialists recommend red tungsten electrodes for steel and stainless
steel, green electrodes for aluminium, black electrodes for steel and cast
iron and gold and grey electrodes for universal application.
Depending on the thickness of the sheet the following tungsten elec-
trodes are recommended:
- Thin sheet (0.5-1 mm) = 1.6 mm electrode
- Normal sheet (1-6 mm) = 2.4 mm electrode
- Thick sheet (over 6 mm) = 3.2 mm electrode
As for gas nozzles, we recommend a size 7 in the universal scope and a
size 5 for precision welding.
6.
Compressed air - plasma cutting:
The high energy density of the plasma arc enables a high cutting speed
with a warp-free cut quality. No special gas is required and the possibi-
lity to use regular air pressure along with easy handling of the unit are
a guarantee of easy use in car bodies, containers, steel construction, the
HVAC industry as well as in installations and plumbing.
EN
40
7.
Grounding cable connection
8.
At the back of each welder there is a screw and a label to provide the
necessary grounding. Before operating the unit it is necessary to ground
the shell of the welding apparatus by means of a cable with not less
than 6 mm diameter, in order to prevent potential problems caused by
electricity leakages.
9.
GAS
GAS/air connection
AIR
EN
41