Setting The Joining Pressure And Starting The Bead Build-Up Stage - HURNER SPG 2.0 Manual De Instrucciones

values are computed individually for every welding
process. If the pipe parameters change, all param-
eters have to be set once again. The machine recog-
nizes the change of pipe parameters and brings the
operator directly to the menu for changing them.
4.3.4

Setting the Joining Pressure and Starting the Bead Build-up Stage

After butt facing and pipe alignment check, the welding
process proper starts by setting the joining pressure (i. e.,
the maximum pressure that will be reached during the pro-
cess, in the bead build-up stage and at the end of the join-
ing stage). While the operator is setting the maximum pres-
sure, as displayed on the screen as the nominal value, the
actual pressure also shows (see Display 24), and the control
software moves on to the next step as soon as the actual
pressure is within tolerance.
After setting the joining pressure (maximum pressure), move
the carriage of the machine apart again.
The so-called automode is a tool for monitoring the
duration of the bead build-up stage and moving on
automatically from the bead build-up to the heating
Info
stage by decreasing the applied pressure. However,
this requires that the automode was enabled in the
configuration menu. In this case, with enabled au-
tomode, Display 25 is shown. Then, to use that bead
build-up time saved at the last welding operation,
press START/SET. Pressing STOP/RESET will cancel the
automode for bead build-up. If the bead build-up is
automode-managed, the build-up time is displayed
as a countdown, and from 10 sec prior to when pres-
sure must be decreased, the audible signal can be
heard.
At the start of the bead build-up stage, place the heating
element ("hot plate") between the pipe butts. The display
tells you so. If the heating element does not have the nomi-
nal temperature yet at this point, an information message
on the screen tells you so. For the heating element tem-
perature is continuously monitored by the data logger. Dis-
play 26 shows only when the heating element exhibits the
required temperature.
When the heating element is ready in place, press the START/
SET key and set the machine to maximum pressure, so it
pushes the pipes against the heating element. Wait for the
weld bead to reach the required height or width, depend-
ing on the selected welding standard. Observing the bead
is also highly recommended in the automode, even though
the bead height is not indicated on the screen during an au-
tomode-managed bead build-up stage.
20
EN
HÜRNER SPG 2.0 User's Manual
H Ü R N E R S c h w e i s s t e c h n i k G m b H
Nieder-Ohmener Str. 26
35325 Mücke, Germany
Set Joining Pressure
230°C NOM.
229°C ACT.
**** AUTOMODE
Use last bead
build-up time?
RESET
Put in heat. plate
222°C NOM.
221°C ACT.
Bead Height
Bead Build Time:68 s
230°C NOM.
229°C ACT.
Version November 2022
16.5bar
3.5bar
Display 24
****
SET
Display 25
16.5bar
0.5bar
Display 26
:2.0mm
16.5bar
12.5bar
Display 27