14
If then the foot switch is pressed, the welding process will be triggered.
Please note!
No gas is released during the entire pin welding process.
Please note!
During step “2.” Above (whilst the shutter is flickering), if the foot switch is not pressed
within 5 seconds, a constant signal tone will commence. This is a warning, and is
designed to protect the hand-piece solenoid from overloading in the case of unintentional
contact.
By again holding the footswitch pressed for ca. 1 second, (without contacting the work
piece) the footswitch function can be deactivated. The symbol
↓
will disappear from the
display.
6-3 WORKING WITH THE ADAPTER CABLE FOR WELDING PINS (Ø1,3mm)
The pin welding mode gives the user the possibility weld on pins (Ø 1,3 mm). Here the
provided adapter cable is utilised, to enable a better contact to the work piece.
After the pin is welded on to the work piece, the cable can simply be slotted on to the pin,
thus providing the optimum contact with the DENTA PUK, so that further welding work
can be carried out. (This is especially advantageous for all work where contacting the
work piece with the other provided tools (i.e. crocodile clip), proves difficult.
The pin is only a “temporary aid” that must not withstand high levels of
mechanical stress. As it will be removed again after the welding work is
completed, it is important to remember to use a low power setting when welding it
on. This will ensure that the pin can be easily removed and polished afterwards.
This can be a very useful method, i.e. when wanting to carry out a weld on a model cast
denture that is already mounted to a model.
It is best to choose a place on the work piece that is sufficient in size and is not prone
warping or distortion; also important, is that the chosen spot for the pin is easy to finish
and polish afterwards.
After the work is finished, the pin can be easily removed again, and the welding area
cleaned with the rest of the work piece after all welding is completed.
6-4 TIPS AND GENERAL POINTERS
Important !
Always work with a well sharpened electrode !
This is the only way to achieve optimum results.
Always make sure that the work piece has a good contact to the
connecting terminal (i.e. crocodile clip).
In case of problems that arise as a result of poor electrical contact,
attach the connecting terminal to a part of the work piece where the
bare metal is exposed.
Never weld “freehand“, meaning: always lay both hands on the
hand-rests; this will aid in steadying the hands. If the hands shake,
the parameters of the device can be falsified and the welding result
affected.
Do not apply force when the electrode tip touches the work piece;
work using no pressure, or only the slightest of pressure !
Weld using only a low gas pressure !
In most cases about 2 l/min is enough.