1
MANUAL inverter
semi-automatic WELDING
Model:
MIG 208 Alu Synergy
Drawings devices in the manual may differ from the original colors.
Translation of the original instructions.
with
NOTE: Please use a welder after a very careful reading the manual.
1. In order to ensure safety should be determined by qualified personnel responsible for installation,
maintenance, periodic inspection and repair equipment.
2. In order to ensure safety before working with the machine carefully and with full understanding
refer to the following instructions.
3. After reading the following instructions and keep it in a place accessible to other users of the
device.
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Table of Contents
1. INTENDED USE ............................................. 41. INTENDED USE ............................................. 41. INTENDED USE ............................................. 41. INTENDED USE ............................................. 4
2. TECHNICAL DATA .................................................. ........................ 52. TECHNICAL DATA .................................................. ........................ 52. TECHNICAL DATA .................................................. ........................ 52. TECHNICAL DATA .................................................. ........................ 5
3. PRECAUTIONS FOR USE ......................................... 5PRECAUTIONS FOR USE ......................................... 5PRECAUTIONS FOR USE ......................................... 5
4. SYMBOLS .................................................. .................. 94. SYMBOLS .................................................. .................. 94. SYMBOLS .................................................. .................. 94. SYMBOLS .................................................. .................. 9
5. CONSTRUCTION AND CONTROL PANEL .................................................. .. 105. CONSTRUCTION AND CONTROL PANEL .................................................. .. 105. CONSTRUCTION AND CONTROL PANEL .................................................. .. 105. CONSTRUCTION AND CONTROL PANEL .................................................. .. 10
5.1 synergistic programs and settings. .................................................. .... 125.1 synergistic programs and settings. .................................................. .... 125.1 synergistic programs and settings. .................................................. .... 12
5.2 Advanced Settings ............................................... ................... 145.2 Advanced Settings ............................................... ................... 14
6. KIT CONTENTS .................................................. ............... 15KIT CONTENTS .................................................. ............... 15KIT CONTENTS .................................................. ............... 15
7. USE .................................................. ............................ 157. USE .................................................. ............................ 157. USE .................................................. ............................ 157. USE .................................................. ............................ 15
7.1 Connecting to the network .................................................. ......................... 157.1 Connecting to the network .................................................. ......................... 157.1 Connecting to the network .................................................. ......................... 15
7.2 Fitting wire welding - MIG / MAG ................................. 167.2 Fitting wire welding - MIG / MAG ................................. 16
7.3 Inserting the wire electrode. .................................................. ........ 167.3 Inserting the wire electrode. .................................................. ........ 167.3 Inserting the wire electrode. .................................................. ........ 16
7.4 Connection of protective gas. .................................................. .......... 177.4 Connection of protective gas. .................................................. .......... 177.4 Connection of protective gas. .................................................. .......... 17
7.5 welding parameters for MIG / MAG ........................................... 177.5 welding parameters for MIG / MAG ........................................... 177.5 welding parameters for MIG / MAG ........................................... 17
7.6 Practical recommendations MIG / MAG welding. ......................... 187.6 Practical recommendations MIG / MAG welding. ......................... 187.6 Practical recommendations MIG / MAG welding. ......................... 18
8. CLEANING AND MAINTENANCE .................................................. ... 208. CLEANING AND MAINTENANCE .................................................. ... 208. CLEANING AND MAINTENANCE .................................................. ... 208. CLEANING AND MAINTENANCE .................................................. ... 20
9. INTERFERENCE WELDERS AT WORK (CODES device errors) 21INTERFERENCE WELDERS AT WORK (CODES device errors) 21
10. STORAGE AND TRANSPORT ............................................. 22STORAGE AND TRANSPORT ............................................. 22STORAGE AND TRANSPORT ............................................. 22
11. UTILIZATION .................................................. ............................. 22UTILIZATION .................................................. ............................. 22UTILIZATION .................................................. ............................. 22
12. DECLARATION OF CONFORMITY .................................................. ....... 23DECLARATION OF CONFORMITY .................................................. ....... 23DECLARATION OF CONFORMITY .................................................. ....... 23
13. WARRANTY. .................................................. ........................... 23WARRANTY. .................................................. ........................... 23WARRANTY. .................................................. ........................... 23
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1. INTENDED USE
MIG 208 Alu Synergy by MAGNUM is technologically advanced, the welder for MIG-MAG,
MMA, TIG LIFT FCAW and braze. For manual, electric welding of low carbon steel, low alloy, low and
high steel alloy of aluminum and its alloys, copper and its alloys, braze, etc.
MIG 208 Alu Synergy is intended for all kinds of welding workshop locksmith, repair shops,
automotive industry, factories, etc. The device is dedicated to professionals requiring the highest
standards, for welding equipment.
The power source has been built on transistors IGBT providing a minimum of electromagnetic The power source has been built on transistors IGBT providing a minimum of electromagnetic The power source has been built on transistors IGBT providing a minimum of electromagnetic
interference, low power losses in core systems, enabling increased productivity and reliability of the
power source. Very high efficiency, which translates directly into lower power consumption, and high
switching frequency, provide instant adjustment of the current to change the parameters during
welding.
MIG 208 Alu Synergy has, among other advantages, unique in its class, synergistic program for
welding of aluminum alloys.
Hardware and software structure allows for high quality welds when welding of all weldable materials,
made of steel, stainless steel, copper alloys and aluminum.
The manufacturer is not liable for damages resulting from misuse.
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2. TECHNICAL DATA
MODEL MIG 208 Alu Synergy
Power AC 230 [V], 50/60 [Hz]
required safety 20 [A]
Current MIG / MAG 20 to 180 [A]
Power MIG / MAG 15 to 23 [V]
Load voltage 78 [V]
Wire diameter * (* see
table of programs)
0.6 / 0.8 / 0.9 / 1.0 / 1.2 [mm]
Efficiency 40%
Enclosure IP21S
Weight 16 [kg]
Specifications are subject to change without notice.
3. PRECAUTIONS FOR USE
Please read all safety regulations and all instructions. Failure to comply with Please read all safety regulations and all instructions. Failure to comply with
safety regulations and instructions may result in electric shock, fire and / or serious
injury.
Keep all safety regulations and instructions for future use.
You can not allow children near the place of operation. People with pacemakers
take him to work with the device, should consult with your doctor. Service and
repair of equipment
They can be carried out by qualified personnel under the terms
safety applicable to electrical appliances.
Processing on their own may alter the functional characteristics of the device or deterioration of
welding parameters. Any modification of the equipment, on their own, cause not only void the
warranty, but may cause deterioration of the security conditions of use and exposure to the risk of
electric shock. Improper working conditions and improper handling can cause damage to the device
and void the warranty.
6
SAFETY INSTRUCTION
electric welding
3.1. General thoughts.
a) The work must begin rested, sober, dressed in clothing made of slow-burning fabric or leather,
her hair covered with a beret or cap, on the legs have shoes with trousers hardly inflammatory
hands welding gloves and personal protection apron leather, welding mask, goggles, personal
respiratory protective equipment.
b) Work related to installation, dismantling, repair and overhaul of electric welding equipment should
be performed by workers with the appropriate permissions.
c) the combination of several welding power sources should not cause exceedance, no-load condition, the
allowable voltage between the output circuits connected sources of energy.
d) circuit of the welding current should not be grounded, except for the cases when the objects welded are
connected to ground.
e) Welding the connecting wires welded to the subject power source to be connected directly to the e) Welding the connecting wires welded to the subject power source to be connected directly to the
subject or instrumentation, as close as possible to the welding point.
3.2. Basic steps before you begin work.
Welder should:
a) refer to the documentation of the executive and the scope of the welding work,
b) schedule the execution order of individual welds,
c) prepare a suitable adhesive,
d) prepare adequate protection face and eyes,
e) check the condition of the welding connections and the operating handle,
f) check whether the execution of the welding does not endanger the environment (radiation curve, the possibility of
ignition elements flammable)
g) check whether in the case of welding on the wall, the other side can not occur inflammation,
3.3. During welding operations.
a) Secure the workplace, as long as there is no fixed and mobile screens with anti
przeciwodpryskowymi.
b) Use for welding electric conductors and an operating handle only in good condition (intact
insulation).
c) Use only the correct thickness of the electrodes and wires for welding.
d) Attach and set reliably and solidly welded object and so has not been damaged.
e) Set the details to be welded in such a way as to prevent them from shifting or overturn.
When you flip slag needle use hammers and goggles.
f) When welding inside the boilers, tanks or in a confined space by whatever ventilation use f) When welding inside the boilers, tanks or in a confined space by whatever ventilation use
respiratory protection.
g) When operating inside the tanks, boilers and other metal rooms used electric lighting 24V.
h) Make sure that the welded part does not risk falling or moving away the dangerous to the welder.
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and) When welding on scaffolding check the status of their efficiency.
j) Protect respiratory system, eyes, face and hands from burns and exposure through the use of appropriate
personal protection.
k) Switch individual air extraction, when this is established, the gaseous effluents are removed from the position.
l) Use only proper, undamaged and not oiled tools and support workshop.
3.4. Prohibited Actions.
Welder forbidden:
a) gripping the prepared hot metal welding or after welding.
b) Isolated repair damaged electrical cables (electrical system).
c) During work breaks stick under his arm electrode holder.
d) masks moving away too far from the welding face, her deposition before the arc goes out, as well as inflammation of the
arc without face protection.
e) Welding without proper grounding of the workpiece.
f) Use makeshift combination of welding equipment. f) Use makeshift combination of welding equipment.
g) Cause to the floor at the work station was wet, slippery, uneven, contaminated waste,
previously blocked.
3.5. Basic activities after work.
Welder should:
a) Switch off the welder energized.
b) Check whether the welding position or a position next to the fire was not dusty.
c) Organize your work station, remove the tip electrodes and welding slag.
d) Organize welding equipment.
3.6. Final remarks.
a) When performing welding work inside the tanks, boilers or other confined spaces (to 15m3), a
welder should be insured by another person, who will remain on the outside.
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ELECTRIC SHOCK CAN KILL: Welding apparatus produce a high voltage. Do not touch the torch or welding material ELECTRIC SHOCK CAN KILL: Welding apparatus produce a high voltage. Do not touch the torch or welding material
connected when the device is turned on to the network. All the elements forming the welding current circuit can cause
electrical shock and should therefore be avoided touching them with bare hands or by wet or damaged protective
clothing. Never work on a wet surface, or use damaged welding cables.
NOTE: Removing the external time when the device is connected to the network, as well as the use of the device
with the covers removed is prohibited!
Welding cables, ground cable, earthing terminal and welding equipment should be kept in good condition, ensuring
safety.
FUMES AND GASES CAN BE DANGEROUS: In the welding process are produced noxious fumes and gases FUMES AND GASES CAN BE DANGEROUS: In the welding process are produced noxious fumes and gases
hazardous to health. Workplace should be adequately ventilated and equipped with exhaust ventilation. Do not weld in
confined spaces. Avoid inhalation of vapors and gases. The surfaces of the elements to be welded should be free from
chemical impurities such as degreasing agents (solvents) which decompose during welding to produce toxic gases.
ARC RAYS CAN BURN: It is not allowed to look directly at the eyes uncovered and exposed to the arc. Always wear a ARC RAYS CAN BURN: It is not allowed to look directly at the eyes uncovered and exposed to the arc. Always wear a
mask or helmets protected with a suitable filter. Bystanders, nearby, protected with non-combustible, absorbing radiation
screens. Protect the exposed parts of the body suitable protective clothing made of non-combustible material.
ELECTROMAGNETIC FIELDS MAY BE DANGEROUS: Electric current flowing through wires Welding produces ELECTROMAGNETIC FIELDS MAY BE DANGEROUS: Electric current flowing through wires Welding produces
electromagnetic field around it. Electromagnetic fields can interfere with pacemakers. Welding cables should be arranged
in parallel, as close as possible to each other.
SPARKS CAN CAUSE FIRE: Sparks generated during welding can cause fire, explosion and burns unprotected skin. SPARKS CAN CAUSE FIRE: Sparks generated during welding can cause fire, explosion and burns unprotected skin.
When welding should be wearing welding gloves and protective clothing. Remove or secure any flammable materials and
substances from the workplace. Do not weld closed containers or receptacles in which there were flammable liquids.
Such containers or tanks should be rinsed prior to welding in order to remove flammable liquid. Do not weld near
flammable gases, vapors or liquids. Fire extinguishing equipment (fire blankets and fire extinguishers powder or snow)
should be located close to the workstation in a conspicuous and easily accessible place.
POWER SUPPLY: Disconnect the power supply before carrying out any work, repairs on the device. Regularly check the POWER SUPPLY: Disconnect the power supply before carrying out any work, repairs on the device. Regularly check the
welding cables. If you note any damage to the wire or insulation they should be replaced immediately. Welding wires can
not be overwhelmed, touch sharp edges or hot objects.
CYLINDER could explode: Use only approved cylinders and a functioning regulator. The cylinder should be transported CYLINDER could explode: Use only approved cylinders and a functioning regulator. The cylinder should be transported
and stand upright. Protect against hot cylinders heat, and mechanical overturning. Keep in good condition all the
components of the gas system: tank, hose, fittings, reducer.
WELDED MATERIALS CAN BURN: Never touch the parts to be welded unprotected parts of the body. While touching WELDED MATERIALS CAN BURN: Never touch the parts to be welded unprotected parts of the body. While touching
and moving the welding material, always use gloves and welding pliers.
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4. SYMBOLS
To reduce the possibility of injury, the user must first read all the instructions.
General warning sign notes for each user on the general danger. It is combined with
other instructions warning or other symbols that failure can lead to personal injury or
equipment damage.
The product complies with the requirements of European Union directives.
Disposal of electrical and electronic equipment - see DISPOSAL in this manual.
Use welding helmet or shield.
Use welding gloves.
Wear protective welding obligatory.
Wear protective welding kneading.
Secure the cylinder from falling over.
Risk of electric shock.
with
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5. CONSTRUCTION AND CONTROL PANEL
Method 3 sec.
son-man-tig-mma
+
-
Choice 3 sec.
Gaseous MaterialScience
point-2t / 4t
about
+
-
mm
AND
V
MIG 208 Alu
synergy
mig mig
-
+
1
2
3
4
5
1. Control Panel.
2. The seat current, the output "minus".
3. Euro-slot.
4. Jack current, output "plus".
5. cable to change the polarity.
NOTE: WHEN MIG-MAG CABLE MUST BE stuck in one of the unit current.
6. Near the cable polarity change - control socket handle SPOOLGUN.
Main switch and connector for connecting the protective gas are located on the rear of the machine.
1. Display.
2. Turn / multifunctional button.
3. Turn / multifunctional button.
1
2
3
11
Pressing the knob for 2 seconds or more and release to enter the menu where
you can choose the method of welding.
The selection is made by turning the knob in either direction. The selected
symbol will then blink. The choice must be confirmed by briefly pressing the
knob.
SON - MIG-MAG settings synergistic. SON - MIG-MAG settings synergistic.
MAN - MIG-MAG settings manual operation MAN - MIG-MAG settings manual operation
(conventional).
Welding MMA
TIG LIFT.
If you choose MMA or TIG LIFT remains only to set the value of the welding current, which is done by
turning the upper knob.
When selecting the method of MIG-MAG manual operation of setting the top dial to be adjusted
wire feed speed, the lower knob voltage value of the
welding current. The set value will be shown on the
display.
The value of the welding current, appears only during
welding.
While in manual mode MAN You can also select spot While in manual mode MAN You can also select spot While in manual mode MAN You can also select spot
welding, and the behavior of the control button that is 2t and
4t.
To select one of the above,
press
not less than 2 seconds the lower knob until the symbols are as follows. Spot
welding symbol will flash.
By rotating the bottom knob occurs on / off (off) the function
and time setting welding point. Range: OFF, 0.1 ÷ 5.0 [s]. At
the time of selection of spot welding and welding time is set at
the point, there is no choice of 4t.
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If spot welding is off, briefly press the knob lower.
The symbol will flash together with the chosen option 2t and 4t.
The selection is done by turning the knob lower.
Approval followed by another short pressing the lower knob.
If the welder is turned on while working 4t display shows the
symbol both in manual mode and
synergistic.
2t If it is on, the display does not show the above
symbol.
5.1 synergistic programs and settings.
After approval synergic mode, the display shows the current program and other parameters:
- the type of material chosen.
- wire diameter.
- shielding gas,
- ATC (if the thickness of ≤1,5 mm)
- material thickness,
- wire feed speed.
- a graphic display of the shape and thickness of the weld material,
- voltage and the current of welding (welding)
- on 4t.
To enter the menu you can select a type of material, wire diameter and shielding gas should push for no less than 2 seconds, lower the
dial until the symbols will appear as below. One of the symbols in the group
materials will blink. Rotating the bottom knob in either direction,
select the desired symbol of the material (no blink). Approval of
the selection is done by briefly pressing the lower knob.
Symbol will be displayed only the selected material (other
disappear), and starts blinking one of the accessible wire
diameters (diameters in the group). Analogously to the
previously lower, by rotation of the knob in either direction, set
the desired wire diameter.
Approval of the passage diameter and a group of shielding
gas takes place by briefly pressing the lower knob.
Then select the desired shielding gas lower knob by its rotation in either direction. Short pressing the lower
knob to confirm the selection and to exit the menu.
After leaving synergistic mode menu must adjust the welding, depending on the thickness of the welded part
- it is the upper switch.
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Upon rotation of the knob to the right or left of the display will change the numerical value of wire feed speed, thickness
of the material in millimeters, and graphical thickening or thinning of the material:
Depending on the thickness of the material will also appear ATC symbol. ATC is an advanced thermal control
function, activated when welding thin materials to a thickness of 1.5 mm.
ATC function stabilizes the arc and reduces the peak value of the welding current by reducing the amount of heat transferred to
the material. As a result, greatly facilitates the welding of thin elements and results in smaller deformations of the material, and
less overheating of the narrow heat affected zone.
In turn, the lower knob is used to weld the upregulation shape (arc length) -9 ÷ 9. The display will change
the shape of the graphic indication of the weld:
The shape of the convex is the low thermal load in low merging the material. Shape intermediate the
recommended setting the average fusing the material. The shape of the concave is a high thermal load
and at a high merging the material.
LIST synergic programs
Ar * - Use of gas recommended by the manufacturer of wire.
In the case of self-shielding wire, the use of shielding gas is not required.
stuff The wire diameter [mm] shielding gas
fe - constantly ordinary fe - constantly ordinary 0.6 / 0.8 / 1.0 WHAT 2 / Ar + CO 2WHAT 2 / Ar + CO 2WHAT 2 / Ar + CO 2WHAT 2 / Ar + CO 2
ss - stainless steel and acid-resistant ss - stainless steel and acid-resistant 0.8 / 1.0 Ar + O 2 / Ar + CO 2 ( 1-2%) Ar + O 2 / Ar + CO 2 ( 1-2%) Ar + O 2 / Ar + CO 2 ( 1-2%) Ar + O 2 / Ar + CO 2 ( 1-2%) Ar + O 2 / Ar + CO 2 ( 1-2%)
Al - aluminum and aluminum alloys Al - aluminum and aluminum alloys 0.8 / 1.0 ar
CuSi, CuAl - braze CuSi, CuAl - braze 0.8 / 1.0 ar
Flux - welding cored wire Flux - welding cored wire 0.8 / 0.9 / 1.2 ar *
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5.2 Advanced Settings.
MIG 208 Alu Synergy have the opportunity to adjust additional parameters for advanced MIG-MAG, both in
synergy mode and manual.
Starting wire speed (Access). Adjusting the range of 30 to 100 [%] the speed of the tray.
Adjusting the inductance. Adjusting the range of 0 ÷ 5.
Higher inductance (soft arc) results in a wider weld pool and less spatter. While the
lower inductance produces a stable, concentrated arc.
The height of burning wire after welding (burn back). Adjusting the
range 0 200 [ms].
Gas flow time after welding. Adjusting the range 0
5 [s].
To enter the menu for adjusting these parameters, press and hold for 2 seconds
or two adjustment knobs at the same time.
Adjustment is done by turning the knob lower. Move to the next parameter,
approval and exit the menu by briefly pressing the lower knob.
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6. KIT CONTENTS
The following items should be included:
welding machine x 1 pc.
Work cable MIG / MAG x 1 pc.
Work cable MMA x 1 pc.
Cable to the common terminal x 1 pc.
Feed roller kit.
Attention!
For the safety of children should not be left freely accessible parts of the packaging
(plastic bags, cardboard, polystyrene, etc.). Risk of suffocation!
7. USE 7. USE
7.1 Connecting to the network
Before switching the device to the mains, check the size of the voltage, phase and
frequency.
Parameters supply voltage are given in the technical specification section of this manual and on the
rating plate.
Check the grounding wire connection device to the mains. Make sure the power network can ensure
coverage of the power demand for the input of the device under its normal operation.
Fuse size and parameters of the power cord are given in the technical data of this manual.
The supply network should have a stable voltage. Cross-section of the supply lines should not be
less than 2.5 mm.
Devices which do not have power plugs connected by. tips listed below.
Connecting and sharing the power cord and the plug should be made by a qualified
electrician.
Insulated wire of yellow-green is grounded and should always be connected to the outlet marked
earth, regardless of whether there is power supply 230 [V] and 400 [V].
Earth symbol.
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7.2 Fitting wire welding - MIG / MAG welding.
ATTENTION! Before all work carried out on the unit, unplug the power cord.
1. Make sure that the device is not connected to the mains. 1. Make sure that the device is not connected to the mains.
2. Check that the ground wire is terminated by a clamp or screw. 2. Check that the ground wire is terminated by a clamp or screw.
3. Plug the cable connected to the mass located on the front panel output jack of the correct polarity, 3. Plug the cable connected to the mass located on the front panel output jack of the correct polarity,
push and twist. A loose connection causes premature firing pin plug and socket current. The
ground wire in the MIG-MAG typically connect to the "- '', when using a wire of self-shielding to the"
+ ".
In the second, empty nest output plug in plug hanging on the built-in cable. It is necessary to
close the circuit welding. Without the plug plugged into one of the output jacks (plus or minus)
the device will not weld!
4. Before putting the welding wire make sure the appropriate armor is established next to the 4. Before putting the welding wire make sure the appropriate armor is established next to the
appropriate diameter and type of electrode wire. To facilitate the manufacture of armor guiding them
label the appropriate colors. For a wire diameter
0.6 to 0.8 mm, a blue color, the wire having a diameter of 1.0 ÷ 1.2 mm, color red, and for a wire electrode
with a diameter of 1.6 mm color yellow. For welding stainless steel and aluminum, Teflon armor use. For the
welding of low carbon steel, low alloy steel, copper, bronze, etc., Are used with spiral metal armor. It should
be remembered accessories from the welding torch in the contact tip to the appropriate species and the filler
wire diameter.
5. Plug the cord of welding "Euro-plug" to enter into the socket (socket euros) on the front panel of the 5. Plug the cord of welding "Euro-plug" to enter into the socket (socket euros) on the front panel of the
welding machine, then tighten the nut by hand until it stops.
7.3 Inserting the wire electrode.
1. Make sure that the roller mounted in the drive train correspond to the type and diameter 1. Make sure that the roller mounted in the drive train correspond to the type and diameter
the introduced wire. If the difference roll groove to the diameter of the wire electrode fit groove by the
reversal or replacement of the roll. For steel wire, use of rollers with V-shaped grooves, and the
aluminum wire with the groove in the U-shaped
2. Place the spool of wire electrode on the spool mounting mechanism, paying attention to 2. Place the spool of wire electrode on the spool mounting mechanism, paying attention to
wire unwinding direction was consistent with the direction of the entrance to the wire drive unit.
3. Lock the spool before falling, by tightening the nut on the body of the reel. 3. Lock the spool before falling, by tightening the nut on the body of the reel.
4. The end of the wire wound on the spool, flatten or cut off the bent section, then 4. The end of the wire wound on the spool, flatten or cut off the bent section, then
file off, so that was not sharp.
5. To allow the insertion wire feeder release the pressure feed rollers. 5. To allow the insertion wire feeder release the pressure feed rollers.
6. End of the wire inserted into the guide at the rear of the tray and perform 6. End of the wire inserted into the guide at the rear of the tray and perform
it above the drive rollers and plug to the port leading to the welding torch.
17
7. Push wire in the groove by tightening the drive rollers 7. Push wire in the groove by tightening the drive rollers
pressure.
8. Remove gas nozzle and contact tip, unscrew. 8. Remove gas nozzle and contact tip, unscrew.
9. Switch on the device. 9. Switch on the device.
10. Handle develop so that it is in a straight line, then 10. Handle develop so that it is in a straight line, then
press the button on the handle until the emergence of a wire in the outlet
(approx. 20 mm), release the button.
11. Screw the contact tip, replace the gas nozzle. 11. Screw the contact tip, replace the gas nozzle.
12. Adjust the pressing force by rotation of the feed roller, 12. Adjust the pressing force by rotation of the feed roller,
pressing the knob. Too little downforce, cause
will slip to the drive roller. Too much contact force, increases the resistance of administration and the
deformation of the wire, which in turn can cause the cutting.
7.4 Connection of protective gas.
1. The cylinder with a suitable protective gas should be set to a semi-automatic shelf (if present) or the wall 1. The cylinder with a suitable protective gas should be set to a semi-automatic shelf (if present) or the wall
and prevent it from tipping over, securing it to the support by means of a chain.
2. Remove the protective cap and the second valve unscrew the bottle to remove any impurities. 2. Remove the protective cap and the second valve unscrew the bottle to remove any impurities.
3. Install the regulator so that the gauges were in the upright position. 3. Install the regulator so that the gauges were in the upright position.
4. Combine with semi-cylinder (outlet of the regulator nozzle clip) corresponding hose. Connector for 4. Combine with semi-cylinder (outlet of the regulator nozzle clip) corresponding hose. Connector for
connecting the protective gas is placed at the rear.
5. Unscrew the regulator valve just prior to welding. After completion of welding, spin the cylinder valve should 5. Unscrew the regulator valve just prior to welding. After completion of welding, spin the cylinder valve should
be.
6. Avoid welding in the open air or within - a blast of air can disrupt the flow of the shielding gas and 6. Avoid welding in the open air or within - a blast of air can disrupt the flow of the shielding gas and
liquid metal strip protection.
7.5 welding parameters for MIG / MAG
The basic parameters of the MIG / MAG: welding current and wire feed speed of the
electrode. Increase welding current increases penetration (penetration depth) and elongation of the
arc. Increasing the speed of a wire electrode causes the handle is biased upwardly from the parts to
be welded. This is due to too small a welding current. When the wire feed speed of the electrode is
too small or the welding current is too high at the end of the electrode wire formed large droplets.
Excessive spatter prove too low welding current or too high feeding speed of the electrode wire.
When welding positions and pułapowych wall, you can reduce the welding current, the performance
of joint filler to achieve a smooth face, you can increase the welding current.
18
7.6 Practical recommendations MIG / MAG welding.
Butt welds in the flat position must be carried out using "push" for thin components and
technology "pull" for items thicker. Butt welds in vertical position for thin elements should be done
from top to bottom. Fillet welds in position nabocznej should be carried out using "push", but with an
additional tilt the torch in a plane perpendicular to the direction of welding. In the case of filling the
wide grooves in the flat position
or the vertical end of the handle must be performed
lateral swinging movements. During welding, the welding gun should be conducted at a right angle
relative to the parts to be welded -If high helix angle may result in sucking air into the liquid metal
angle (from the vertical holder should be ≤ 10 °). Long arc welding reduces the depth of penetration -
the seam is wide and flat, and is accompanied by increased weld spatter.
Short arc welding (with the same current density) increase the depth of penetration - the weld is narrower,
and the spatter material becomes smaller. The welding speed is a parameter output at a given current
intensity and arc voltage, and maintaining the correct shape of the weld bead, and when the welding speed
may even be slightly changed, change the current or the arc voltage. The increase welding speed makes the
weld is narrower and decreases the depth of penetration, and with further increase in the face of flooding
occur. The largest welding speed, without undercuts, can be obtained by increasing the stick electrodes and
the inclination of the object up and down or tilt in the direction of the welding torch. Small welding speeds
cause that increases the depth of penetration, face width and height of the riser.
Excessive lengthening or shortening the arc can
cause unstable arc glow and poor weld quality.
L1, L2 - arc length
The depth of penetration is also significantly impact
the direction of welding - carrying the torch.
H1, H2 - the depth of penetration
Due to the nature of the shielding gas and the electrical parameters of the welding process (voltage
and current) There are three ways to change the physical state of the metal in the arc welding:
19
GRUBOKROPLOWY - used for MIG / MAG
low current densities and long arc
- not recommended in forced positions
SPRAY
- used in the MAG gas mixtures
- not recommended in forced positions
Short circuit
- used in MAG welding with short arc
- recommended for welding parts of small thickness
and forced positions
The protective gas guards determine the efficiency of the welding area, but also of a process for transferring the
metal in the arc, the welding speed and the shape of the weld. Inert gases argon and helium, although perfectly
protect the molten weld metal against access of air, are not appropriate for all applications of MIG-MAG welding. By
mixing in the appropriate proportions of helium or argon and a chemically active gas obtained by changing the
nature of metal transfer the arc to increase arc stability and there is possibility to influence on metallurgical
processes in the weld seam. At the same time it is possible to significantly reduce or completely eliminate splash.
protective gas Chemical action welded metal
ar inert Basically, all metals except for carbon steels
He inert
Al, Cu, Cu alloys, Mg alloys, ensured high heat input welding
20-80% Ar + He inert
Al, Cu alloys, Cu, Mg, there is provided a large heat input welding, low
thermal conductivity gas
25-20% Ar + N 225-20% Ar + N 2 reducing
Copper welding with high heat input arc glow better than the arc shield 100% N 2Copper welding with high heat input arc glow better than the arc shield 100% N 2
Ar + 12% O 2Ar + 12% O 2 weakly oxidising
Recommended mainly for welding stainless steels and alloy steels
Ar + 3-5% O 2Ar + 3-5% O 2 oxidising Recommended for welding carbon steel and low-alloy steel
WHAT 2WHAT 2 oxidising Recommended only for welding low carbon steel
20-50% Ar + CO 220-50% Ar + CO 2 oxidising
Recommended only for welding carbon steel and low-alloy
steel
Ar + 10% CO 2 + 5% O 2Ar + 10% CO 2 + 5% O 2Ar + 10% CO 2 + 5% O 2Ar + 10% CO 2 + 5% O 2 oxidising
Recommended only for welding carbon steel Low-alloy and
opowych
WHAT 2 + 20% O 2WHAT 2 + 20% O 2WHAT 2 + 20% O 2WHAT 2 + 20% O 2WHAT 2 + 20% O 2 oxidising
Recommended only for welding low carbon steel and low-alloy
20
90% He + 7.5% Ar +
2.5% CO 22.5% CO 2
weakly oxidising Corrosion resistant, short-arc welding
60% He + 35% Ar + 5%
WHAT 2WHAT 2
oxidising
Low alloyed steels, high-impact, short-arc welding
8. CLEANING AND MAINTENANCE
Degree of protection of this device is IP21S, so, do not use the unit in the rain, or expose it to
moisture.
ATTENTION:
A device based on electronic components. Grinding and cutting in the vicinity of
the welding device can contaminate the swarf inside the device, thus leading to damage.
The above-mentioned damage is not covered by warranty! In the case of having to work
in such an environment must be made to clean the machine by blowing compressed air
inside of the welder.
To extend the service life and reliable operation, observe a few rules:
1. The device should be placed in a well-ventilated room, where there is a free circulation of air. 1. The device should be placed in a well-ventilated room, where there is a free circulation of air.
2. Do not place the device on a wet surface. 2. Do not place the device on a wet surface.
3. Use a wire diameter and a weight of the spool in accordance with disposed on the table. 3. Use a wire diameter and a weight of the spool in accordance with disposed on the table.
4. The gas cylinder protective set on the shelf at the back of semi-automatic and secure with chain 4. The gas cylinder protective set on the shelf at the back of semi-automatic and secure with chain
against the possibility of tipping.
5. Check the condition of technical equipment and welding cables. 5. Check the condition of technical equipment and welding cables.
6. Remove all flammable material from the welding area. 6. Remove all flammable material from the welding area.
7. Welding use suitable protective clothing: gloves, lab coat, shoes, a mask or helmet. 7. Welding use suitable protective clothing: gloves, lab coat, shoes, a mask or helmet.
When planning the maintenance of the device should take into account the intensity and operating conditions. Proper
use of the equipment and its regular maintenance will avoid unnecessary disruption and downtime.
Daily:
ABOUT Purify the handle by weight, and the gas nozzle chips, means lubricate against frangibility. ABOUT Purify the handle by weight, and the gas nozzle chips, means lubricate against frangibility.
ABOUT Check whether the cables are correctly connected. ABOUT Check whether the cables are correctly connected.
ABOUT Check the condition of the pipes. Replace damaged cables.ABOUT Check the condition of the pipes. Replace damaged cables.
ABOUT Make sure that the device around the free flow of air. ABOUT Make sure that the device around the free flow of air.
ABOUT Replace or repair damaged or worn parts. ABOUT Replace or repair damaged or worn parts.
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