Plasma & TIG Process
Plasma & TIG Process
TIG and Plasma Installation
Applications
Multi-purpose welding installation to enable the following processes to be used in automatic applications:
Improvement productivity
with PLASMA +TIG Process
The Plasma + TIG process is specially designed for assembling panels for the prefabrication of vessels longer than 4 meters and carrying out circular welds for diameters greater than 2 meters.
This process of using 2 torches in tandem gives a productivity gain of 30-50 % over a single-torch plasma installation.
The “plasma” arc penetrates the butt-jointed panels. The “TIG” arc equipped with filler metal, electromagnetic arc oscillation and a gas trailing shield produces a perfect surface finish which can often be left without any further treatment
Advantages
Power Source
The power source NERTAMATIC 450 Plus centralizes the global management of the welding cycle: the control of the current, the voltage, the wire speed, the gases flow, the magnetic oscillation and the welding speed.
An optional AC module can be integrated to control the current for variable polarity aluminium welding.
Torches
High performance water cooled torches to ensure quality and stability of the process and its equipment.
Torches are equipped with quick connection systems for easy change and maintenance.
SP7:
This torch is the reference in the market, for soft and key hole plasma welding:
Options:
Wire Feeding Device
It is often necessary to feed the molten pool with metal during the welding operation in order to prevent the seam from showing hollows, to supply soft steels with deoxidizing elements and for succesive seams.
The system allows to quickly and accurately adjust the wire impact point in the welding pool thanks to micrometer slides.
The adjustment can be manual or motorised for remote control.
AVC system
A constant distance between the torch and the workpiece is a key of quality to ensures a constant penetration and bead width.
The Arc Voltage Control (AVC) keeps this constant distance by automatic regulation of the arc voltage: function fully integrated into the Lincoln Electric system composed of an electrical vertical slide travel 200 mm.
Oscillarc plus
Arc deviation
This technique is used to electrically deflect the TIG arc forward in the welding axis, increasing the speed by 30 to 50% for thicknesses of less than 2 mm.
Arc oscillation
Arc oscillation is used to deposit metal over areas up to 15 mm wide to fill bevels or reconstitute surface coating.
Video camera
The TIG/plasma video system VISIOARC VA2 can be easily integrated.
It uses a greatly enlarged image which enables the precise position of the welding torch to be viewed thus making the operator’s work easier and improving the quality of the welding operation.
Cooling unit
The FRIOJET 300 W cooling unit is compact with coolant constant supply, in closed circuit, used to cool down torches. Water circulation in closed circuit makes it possible:
Cooling unit equipped with display of temperature and control of return flow plus coolant level.
Hot wire
Productivity improvement by increasing the deposition rate
For filling bevels 40 mm deep, the use of hot wire provides a good solution and is particularly suited to applications where a high speci cation of the welded joint is required. This special technique uses an auxiliary current to bring the end of the wire to near its melting point.
Viable for plates of thickness 10 mm and above, the use of hot ller wire enables 2.5 to 3 kg of metal to be deposited per hour for lling bevels using multiple passes or for quality hard-surfacing:
Industries and Application of P+T
