STAYER WELDING S60.17L Manual De Instrucciones página 36

Prepare the electrode by sharpening the tip with the emery stone
in such a way that a cone with a height of approximately 2 times
the electrode's diameter remains. For a better arc and current
handling capacity, the correct attack of the tip on the stone must
be longitudinal and the tip must be slightly flat.
In order to correctly position the electrode in the torch, it must
protrude about 5 mm above the nozzle.
As a general rule, connect the output inversely than the usual
connection of the electrode i.e. the TIG torch to the equipment's
negative terminal and the grounding clamp to the positive
terminal. Prepare and secure the piece.
Adjust current intensity in accordance with the needs of the kind
of material and the joint to be made, making first a test on a test
piece. Refer to tables 5 and 6, specialized literature or regulated
professional training for further information in respect hereof.
The torch shall receive inert gas supply (usually pure argon)
proceeding from a cylinder, through a pressure reducing system
capable of suitably regulating the necessary gas flow volume.
Models T40.20PAH – TIG AC/DC 200HF and T100.24PAHT –
TIG AC/DC 250HF present features of maximum professionalism
as explained in chapter "advanced TIG welding".
Model S60.17L requires a TIG torch (not included, STAYER
references 38.71 and 38.73) with a direct connection to the flow
meter and as control by a flow valve that is incorporated in the
TIG torch itself.
Except for model S60.17L, internal start and stop control is
incorporated, so that the gas flow is governed internally by means
of the control pushbutton of the TIG torch. Model T40.20PAH
– TIG AC/DC 200HF has the advantage that of the switch for
selecting additional time for gas discharge before starting and
after the termination of welding. This additional gas provides
the advantage of increased shielding and quality of work. For
this purpose, a short period (2sec, position 'short', increased
economy) or long (6sec, position 'long') may be selected by
switch 8.
Model S60.17L has the improved feature of a touch start
system (Lift Arc). This system allows for a minimum electrode
contamination. To start TIG welding, move switch 7 to position
TIG, open the gas outlet valve and put the tip of the torch in
contact with the piece to be welded. Wait two seconds and then
slowly raise the torch slowly to make the arc to start automatically
and smoothly.
The remaining models have HF (High Frequency) priming with a
maximum priming quality as they do not need to have physical
contact with the piece so that the conditions of the arc and welding
are not deteriorated by contamination of the tungsten electrode.
To start TIG welding, move switch 7 to position TIG and simply
move the tip about 3-5mm close to the piece to be welded. Press
the pushbutton of the torch to strike the arc automatically. Should
there be starting difficulties, you may slightly lean the ceramic
nozzle against the piece to facilitate priming of the electrode.
Once the welding arc has been struck, proceed to carrying out
welding in accordance with the needs thereof. As a general
orientation, you shall have to advance inversely to electrode
welding such that, instead of drawing backwards, you act
pushing forwards as if you helped the gas flow to act on the weld
puddle.
Slowly deposit the filler material of the rod by successively
bringing it closer to the puddle of fused material. To finish, simply
stop pushing the switch of the torch, separate the torch very
slightly until the arc is interrupted and close the manual gas
flow valve. Finally, close the general flow valve of the inert gas
cylinder.
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ENGLISH
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MMA for T40.20PAH – TIG AC/DC 200HF
Welding intensity (0A – 200A) is set by means of the xy
parameter setting button. By means of the two xz parameter
selector buttons, you may increase (0 – 80A) the Arc Force
module depending on the kind of electrode, kind of steel and
kind of welding.
For example, for penetration welding where the risk of the
electrode becoming stuck in the insert is high, you will be able to
increase Arc Force until achieving a clean weld.
4.5.3.- ADVANCED TIG WELDING
This applies to models T100.25PHAR – TIG AC/DC 250HF and
T40.20PAH – TIG AC/DC 200HF
WELDING PARAMETER SETTING
The welding parameters are selected by sequentially pushing
button/control 19. Parameter magnitude is precision adjusted by
moving control 20. When, in addition to rotating control 20, you
push it while rotating, you may quickly increase or decrease the
value.
The machine is provided with an EEPROM memory so that the
machine's settings are preserved when it is turned off.
In order to know the setting range of each parameter, please
refer to the table of extended technical features at the beginning
of the manual. Functionally, the parameters are:
1. Gas discharge time before appearance of the electric arc (pre-
flux).
2. Gas discharge time after appearance of the electric arc (post-
flux).
3. Electric arc intensity at the initial intensity slope.
4. Electric arc intensity at the final intensity slope.
5. Increase time for the initial intensity slope.
6. Decrease time for the final intensity slope.
7. Consolidated welding intensity of the electric arc.
8. Pulse peak intensity of the welding arc.
9. Pulse base intensity of the welding arc.
10. Percentage of the pulse peak of the welding arc versus the
pulse base.
11. Pulse frequency of the welding arc.
12. Proportion of the negative half-wave of the alternating
welding current versus the positive half-wave.
13. Proportion of the negative half-wave of the alternating
welding current versus the positive half-wave.
14. Frequency of the polarity change of the alternating welding
arc.
SETTING OF THE WELDING TYPE
The 4 modes are selected by pushing button 15.
1.- Shielded electrode
The machine operates as a standard electrode welding machine
where the functions for enhancement of welding Hot Start, Anti
Stick and adjustable Arc Force become activated.
2.- Standard TIG
The machine is programmed as TIG welding machine without
pulsed arc, in direct current 'DC' or alternating current 'AC'
(button 16).
3.- Pulsed TIG
The four pulsed-arc functions are added to the standard TIG
features.
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