technical reasons. The welder has to compensate for this drop
Depending on the welding standard used or on information provided
during which the new joint must not be exposed to external forces.
when the 7
th
LED is lit.
4.3.8 End of Welding
The welding is finished at the end of the successful joining and cooling
stage. The machine releases the pressure on the pipes automatically.
4.4
Fully Manual Butt-welding Process
arrow keys simultaneously while "Next Welding" is showing
Info
like what Display 31 shows.
determination of the pressure to "drag" the carriage along and of the
during bead build-up and joining) have to be performed in the exact
tion 4.3). The only difference is that the display does not provide any
hints as to what to do. It just works as a digital gauge indicating the
nominal temperature the welder has to set and the actual temperature
throughout the process. The parameters for proper welding have to
be looked up in the welding value tables in the appendix.
the faster the carriage closes in and the faster pressure in-
Info
decreases.
perature changing slowly to the new nominal temperature.
The welder must wait for the display to show the new nominal
Important
The welding proper has the four stages in the diagram below that are
explained in the following sections. It is under the welder's responsi-
bility to verify the correct welding pressures and times.
lever to the close-in position and gradually turn the pressure regula-
tor clockwise. Watch the display and note the pressure that "drags"
the carriage sufficiently to set it in motion. This is the drag pressure
P
for this welding.
t
20
EN
HÜRNER WeldControl 2.0 630 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
and
***
MANUAL MODE ***
220°C
NOM. ---.-bar
-
219°C
ACT. 016.0bar
and
-
-
Version January 2019
Display 31