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Idiomas disponibles
DUTY CYCLE AND OVERHEATING
Duty cycle is the percentage of 10 minutes that the unit can weld at the required power without overheating. In the event that the
equipment overheats, the welding power will stop. The fan will run until the internal temperature is safe for the equipment. The
equipment resets automatically when it recovers a safe temperature. However, it is recommended to wait a minimum of 5 minutes to
return to work normally. To avoid overheating, reduce the set welding power and/or the length of the seams you are making.
Exceeding the equipment's rated duty cycle and prolonged operation (without giving it time to cool down properly) could cause a
major breakdown not covered by the equipment's warranty.
TRANSPORTATION AND INSTALLATION OF THE WELDING EQUIPMENT
The transport position of the equipment must be the one indicated on its packaging. It must be ensured that the equipment does not
receive any impact during transport. The location of the equipment must be in a dry and ventilated place, away from water intakes and
the welding station (in order to avoid the entry of metallic dust inside the equipment). The equipment must be placed on a horizontal
plane with a maximum inclination of 10º. The machine must be connected to an electrical panel, which must be made up of a
differential switch and an automatic switch. The differential switch protects people from direct or indirect contact with electrical parts.
The circuit breaker must be chosen based on the equipment's nameplate. A switch with a slow current/time ratio (curve D) is
recommended to prevent false trips.
COMMISSIONING
1 - Connect the ground cable as close as possible to the piece to be welded and connect it to the equipment in the desired position
according to the polarity. The contact surface with the piece to be welded must be as large as possible. Make sure that said surface is
completely free of paint or rust.
The following table shows the cable section recommended by Solter Soldadura according to amperage and work cycle for lengths less
than 25m. These data are for reference only and may NOT fit all applications. If the cable overheats, use a larger cable section.
section (mm)
2
) for X<60%
2
section (mm)
) for X>60%
2 - Connect the electrode holder clamp to the equipment in the desired position according to polarity.
3 - Connect the welding equipment to an earthed socket. Attention that the voltage is within
of the margins of 230Vac +/-10V. Outside of this voltage range, the equipment may malfunction.
THERMAL PROTECTION DEVICE
In the event of prolonged use at maximum power, when reaching maximum temperature values the machine will stop and the amber
light will come on. The fan will continue to run to cool the machine and in a few minutes it will start working again.
WELDING PROCEDURE USING COATED ELECTRODES
Electric arc welding with coated electrodes is a procedure through which the union between two metallic parts is made, taking
advantage of the heat generated by an electric arc that occurs between the fusible electrode and the material to be welded.
Welding machines can be direct current or alternating current; the former can weld any type of electrode, while the latter can only weld
electrodes intended for alternating current.
The constructive characteristic of these machines is such as to guarantee a good degree of stability of the arc in terms of variations in
its length due to the approaching or moving away of the electrode caused by the welder's hand.
The electrode is made up of two fundamental parts:
●
The core, which is of the same nature as the base material (aluminum, iron, copper, steel, stainless) and fulfills the function of
providing material in the joint.
●
The coating, made up of various mineral and organic substances mixed together whose functions are:
Gas protection. A part of the coating, volatilized at arc temperature, moves air away from the area, creating a column of
ionized gas that protects the molten material. Contribution of binding and slagging elements. A part of the lining is melted and
contributes to the molten pool some elements that are combined with the core material.
The main types of lining are:
Rutile coatings. These coatings give the cord a very good aesthetic appearance, which is why its use is widely spread. It can
be welded in both alternating current and direct current with both polarities.
Basic coatings. They are essentially used for welds of good mechanical quality, although the arc tends to spatter and the
aesthetics of the bead is inferior to that of the rutile coating. They are generally used in direct current with the electrode to the
positive pole (inverse polarity), although there are some basic electrodes for alternating current. The basic coatings are
sensitive to humidity, therefore they must be stored in a dry environment, inside well-closed boxes. We also remember that
steels with a carbon content greater than 0.6 need to be welded with special electrodes.
Acid coatings. These coatings give rise to good weldability and can be used in alternating current or in direct current with an
electrode-holder clamp to the negative pole (direct polarity). The molten pool is very fluid. For this reason, the electrodes are
essentially suitable for flat welding.
ATTENTION
Welding Amperage (A)
100
150
200
16
25
25
16
25
35
250
300
350
35
50
50
50
70
70
400
70
90
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