I.T.S. Ital Trade Services PT 630 Operating Manual
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3.5 Welding cycle
To obtain the best result we strongly suggest allowing the use of the machine only to experienced operators
The welding phase is composed by 5 phases with 5 different times:
PHASE 1 = t1
= Time requested for the bead formation with the specified wall thickness
PHASE 2 = t2
= Time requested for the continual heating
PHASE 3 = t3
= Time requested for the change over
PHASE 4 = t4
= Time requested for bringing up the pressure
PHASE 5 = t5
= time requested for cooling down
Pressure-Time diagram for butt welding
PHASE 1 = Heating up t1
a) Fit the heating mirror taking care that the temperature of the surfaces is the one selected
b) Bring the lever
A
(Hyd. Unit)
into position
A3
in order to have the bead formation as per attached table, this operation must be done
with the true welding pressure value: ( Inertial pr
P1
).
c) Check the Bead formation wall thickness according to the attached welding table
PHASE 2 = Heating up t2
a) After bead formation act on lever
E (Hyd. Unit)
anticlockwise in order to bring the pressure nearly to zero and proceed to the heating
time
t2
at pressure
P2
PHASE 3 = Change over t3
a) Elapsed the heating time at pressure
P2
bring the lever
A
(Hyd. unit)
into position
A2
and remove the heating mirror and immediately
bring the lever
A
into position
A3
and acting on lever
E
clockwise put in contact the two pipes
PHASE 4 = Bringing up pressure t4
a) Achieve the true welding pressure value: (Inertial pr
P1 = P5
) by checking the pressure gauge, This operation must be done
according to the time indicated into the attached welding table.
PHASE 5 = Cooling Down t5
a) Bring the lever
A
into position
A1
and keep such situation for all the cooling time indicated into the attached welding table, taking care
that the pressure will not decrease too much
b) Elapsed the cooling time by acting on lever
E
anticlockwise bring the pressure to zero.
c) Take away the pipes welded
Important !!!
In case of any doubt please refer to the specific instructions
Summary of Contents for I.T.S. PT 630
Page 1: ...I T S by Tecnodue PT 630 Edition 1208 Operating Manual ...
Page 26: ...I T S Ital Trade Services PT 630 Operating Manual 26 26 26 26 9 4 Hydraulic plan ...
Page 29: ...I T S Ital Trade Services PT 630 Operating Manual 29 29 29 29 ...
Page 31: ...I T S Ital Trade Services PT 630 Operating Manual 31 31 31 31 ...
Page 33: ...I T S Ital Trade Services PT 630 Operating Manual 33 33 33 33 ...
