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Taking the monotony out of boiler tube welding
An
Orbimatic product story
Edited by the Manufacturingtalk editorial team
Aug 4, 2003
Weld head has been designed to enable the welding of boiler tubes fitted to tube sheets in heat exchangers.
Orbimatic's P20 weld head has been designed to enable the welding of boiler tubes fitted to tube sheets in heat exchangers.
These heads allows this task to be carried out using a precision Orbital Welding Power Supply, such as the Orbimat C range.
This means that not only is the rotation of the torch is consistent and the delivery of the welding current is also kept constant and can be varied around the circumference of the tube.
The heads are controlled with closed loop servos and parameters are monitored 500 times per second to provide a precise and accurate control of the weld profile.
The P20 can be used for autogeneous welding or for applications requiring a additional filler material.
The weld head can be fitted with a standard 4 (1 kg) mini spool of wire which is head to the weld area via a precision wire feed mechanism.
It can be used for tubes which are flush, receded or protruding from the tube plate and the torch can be angled by up to 30 degrees.
Tubes from 10mm ID to 70mm OD can be welded with completely repeatable results.
For deeply recessed boiler tubes or for boiler tube repairs an internal bore welding torch can be fitted The standard head will allow any TIG weldable materials to be welded and an additional double gas shield can be used for welding highly reactive materials such as titanium.
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