GEA VARIVENT T R Originalbetriebsanleitung Seite 73

Datum: 2014-03-31
221RLI002534EN_2.doc
Location: Büchen
Manufacturer's welding method: 141 ( WIG )
Welders: qualified welder acc. to DIN EN 287-1
AD-2000 Merkblatt HP3
Welding procedure: 141 DIN EN ISO 4063
Weld type: I – weld, fillet weld
Preparation of the joint: gap < 0,2 (mm)
Structure of the joint
Produce I-weld and fillet weld
Workpiece
thickness t Weld bead
[mm]
2; 2,5 Fillet weld
3 Fillet weld
4 Fillet weld
2; 2,5; 3; 4 I-Weld
Filler material: in consultation with the technical expert
(third party)
Manufacturer:
Merhof, 2014-03-31
Name, Date and Signature (Welding Supervision)
Manufacturer's Welding Instructions ( WPS ) for
Housing Connection U
a1,2
Filler metal
Procedure
[mm]
141 1,6
141 1,6
141 1,6
141 1
Preparation method: mechanical
Cleaning method: brushing or pickling, degreasing
Specification of the parent metal: 1.4404, 1.4435
Workpiece thickness [mm]: t = 2; 2,5; 3; 4
Outside diameter [mm]: 70, 85, 114, 154, 184, 212
Welding position: PA (horizontal); PD (overhead)
1. Insert locking into housing connection U and fix with clamps,
according 221MBL001334G
2. Tack housing connection U with 4 tack-weld spots at welding neck
3. Produce fillet weld using backing gas
4. If necessary, produce I - weld (for tightness only) using
1.4430 filler rod.
5. After cooling down, remove blind cover
6. Visual inspection of I – weld
7. Check fillet weld with A–tolerance gauge
Current
Voltage
strength
U [V]
I [A]
80 - 100 10 - 15
90 - 110 10 - 15
120 - 140 10 - 15
50 - 60 10 - 15
Inert gas: DIN EN ISO 14175 - I1
Flow rates in l/min: 13 - 15
Backing gas: DIN EN ISO 14175 - I1
Flow rates in l/min: 10 - 20
Confirmation of the correct work by the processor:
........................................................................
Name, Date and Signature (Welder)
Welding procedure
Kind of
Welding
current /
speed
polarity of the
[cm/min]
electrode
=/- 3 -7
=/- 3 -7
=/- 3 -7
=/- 3 -7
1mm
Heat
Application
[kJ/cm)
5 - 7
6 - 8
7 - 10
5 - 7