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Date: 2020-02-13
221RLI002244EN_9.DOC
Location: Büchen
Welding process: 141 ( TIG-Pulse )
Reference-No: WPSAnschlT1004
Welder: Certified according to DIN EN 287-1; AD-2000 HP3
Welding process:
141 DIN EN ISO 4063
Type of joint:
see draft
Preparation of joint: no gap between flange and base metal
Location: Büchen
Structure of the joint
Welding of the final run in 8 segements
weld seam
Weld layer
Process
Root
141
First layer
141
2,3,4, etc.
141
layers
Filler metal: After consultation with the technical expert
Shielding gas: DIN EN ISO 14175 - I1
Backing gas: DIN EN ISO 14175 - I1
Manufacturer:
Merhof / 2014-03-31.................................................................
Name, Date and Signature (Welding supervision)
Manufacturer's Welding Instructions (WPS)
Housing Connection T
DN 25; DN50/40; DN80/65; DN100
Housing Connection DN50 T-S
5
1
3
8
7
4
2
6
Filler metal
Current
[mm]
[A]
1,2; 1,6
50 - 60
1,2; 1,6
50 - 60
1,2; 1,6
105 -125
Preparation: mechanical
Cleaning method: brushing or pickling
Specification of the parent metal: 1.4404; 1.4435; 316L
Workpiece thickness (mm):
Outside diameter (mm): 145; 165; 200; 225
Welding position: PA , PD (overhead)
Preparation: mechanical
Welding procedure
Pulsed arc welding to be applied only
1. Working diagonally when tacking, 8 times with filler
2. Welding may only be carried out using a welding fixture that
needs to be connected to forming gas
(see 221MBL007030G); when fitting the fixture, first position
the segment clamping device from the outside and secure it.
Then fit the relevant plate from the inside of the tank. The max.
tightening torque for the nuts in the fixture is 60 Nm. After
welding, quickly cool the weld seam with water.
3. Weld the root without filler if possible; top layers are welded
with filler (number of top layers depending on material
thickness)
4. Before welding the inside replace the plate of the fixture with a
smaller plate.
5. Only remove / reclamp the fixture once the temperature of the
component has fallen to < 30 °C.
Kind of current/
Voltage
Electrode
[V]
polarity
10 -14
=/-
10 – 14
=/-
10 – 14
=/-
Intermediate layer temperature: T<30°C
]
Flow rate [l/min
:
Shielding gas:
13 - 15
Confirmation of the correct work:
........................................................................
Name, Date and Signature (Welder)
Am Industriepark 2-10, 21514 Büchen, Germany
Telefon +49 4155 49-0, Telefax + 49 4155 49-
sales.geatuchenhagen@gea.com, www.tuchenhagen.com
t = 2mm to t = 8 mm
Welding speed [cm/min]
3 -7
3 -7
3 -7
Backing gas: 10 -20
GEA Mechanical Equipment
GEA Tuchenhagen GmbH
2423
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