GALA PULSE SYNERGIC DR ADVANCED. Instructions Manual
66
7.
The end of the liner must be brass to prevent the heat from the pistol burning the Teflon sleeve, permitting the
distribution of the current along 100 mm, thus avoiding current concentration at the contact tip. Possible energy
concentration in the wire will produce short circuits that will slow it down when it comes out of the pistol,
producing jamming in the entry of the liner and the rollers.
8.
Due to the aluminium dilation coefficient, almost double that of steel, when the wire heats at the contact tip, the
diameter increases by a greater proportion, so the diameter of the hole of the contact tip must be bigger, with a
slightly greater tolerance than for steel. Therefore, the use of special contact tips for aluminium is recommended.
8.4. WELDED APPLICATIONS ACCORDING TO SYNERGIC PROGRAMME.
8.4.1. CARBON STEEL WELDING.
The wire used for the process has a copper coating on the filler material enabling it to increase the electric
conductivity, allowing the current to flow more easily, guaranteeing arc stability and protecting the wire from
oxidation.
Used in welding structural steel sheets and sections in the construction of bridges, cranes and commercial vehicles,
the thermal reduction during the welding process prevails as the heat input has a great influence on the
transformations of the material properties, especially when welding high resistance fine-grained steels.
Applications:
8.4.2. CO2 WELDING.
It is characterised by its high heat input and its fast welding speed. The end of the wire remains at the same level as
the surface of the part so there is practically no arc height.
Recommended for welding carbon steels in applications with great penetration and my input speeds, removing
importance from the outer aspect of the bead.
As a general rule, this welding mode tends to result in a lot of spatters, but on working at high intensity ranges, the
crater that occurs in the melting pool, reduces its passage to the outside. However, the incorporation of the specific
synergic program in GPS will reduce the number of low intensity spatters and will facilitate welding, increasing the
arc stability.
The inert gas is used in traditional applications whilst pure carbon dioxide (CO2) has become established as the best
solution with respect to weldability, mechanical properties and cost efficiency. The use of pure CO2 represents an
additional saving up to 4 times less in relation to the processes that uses mixes with argon.
Applications:
STRUCT
URES
METAL
CARPENTRY
BODY
WORK
INDUS
TRY
AGRICULTURAL MACHINERY
STEEL FIXING
STEE
L
FIXI
NG
STEEL
CONSTRUCTION
HEAVY REPAIRS
STEEL
CONSTRUCTION
