Joining And Cooling Stage; End Of Welding - Hürner CNC ECO 200 2.0 Manuel Utilisateur

The machine then presses the pipes automatically together.
4.3.7

Joining and Cooling Stage

In the joining stage the machine increases pressure in ac-
cordance with the pressure ramp computed for the joint
(see Display 28). During this stage LED 5 flashes; all previous
LEDs are lit.
When the full joining pressure is reached, the machine
moves on to the cooling stage (see Display 29). The cooling-
down is represented as a countdown of remaining duration.
During cooling, the joining pressure applied is monitored.
In the process, LED 6 flashes, all the previous LEDs are lit.
Some standard, e.g., DVS, require the joining pres-
sure to be the same throughout cooling (t
have it that the initial joining pressure (t
Info
reduced after some time into cooling (t
a standard was selected, the machine takes care of
the pressure reduction required by the standard. In
that stage LED 7 flashes, all the other LEDs are lit.
4.3.8

End of Welding

A beep signals the end of the cooling time. Furthermore,
the green LED is lit to indicate a successful welding process.
Confirm the end of welding by pressing the START/SET key.
Pressure to the hydraulic lines will then be shut off.
Note in general that pursuant to DVS 2207-1 or oth-
er international standards, the cooling time has to
be observed and waited out for its entire length.
Info
A reduction of the cooling time of up to 50%, i.e.,
joining pressure release and removal of the welded
part from the welding system, is allowed in the fol-
lowing conditions:
• the welding is done in workshop conditions and
• the removal from the welding equipment and
the temporary storage are causing only slight
loads to the joint and
• it concerns components with a wall thickness of
≥ 15 mm.
Under the welder's responsibility, the cooling
time can be reduced and the welding operation
ended early, by pressing the START/SET key if at
least half of the cooling time is over. A welding op-
eration with reduced-duration cooling is identified
in the report, if the HCD feature is enabled in the
Recording menu (refer to Sect. 4.1.6), by the indica-
tor -HC- .
26
EN
HÜRNER CNC ECO 200 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
JOINING PHASE
230°C
229°C
COOLING PHASE
Cooling time :1234s
230°C
229°C
). Others
5
) must be
5
). If such
6
COOLING PHASE
Cooling time over
229°C
Nieder-Ohmener Str. 26
35325 Mücke, Germany
NOM. 16.5bar
ACT. 14.5bar
Display 28
NOM. 16.5bar
ACT. 16.5bar
Display 29
ACT. 0.0bar
Display 30
Version October 2022