Saw Welding Machine

Machine features

1. IGBT inverter full-bridge soft-switch inverter technology, higher efficiency, more energy saving
2. Auto switch off from phase lack, over current, over heat, and over/under-voltage
3. Welding current, voltage and marching speed can be preset accurately
4. Strong ability to suppress network voltage fluctuations, with a width of up to ± 20%, duty cycle of power source is as high as 100%
5. Wire feeding auto checking, wire sending stop automatically while the wire is well contact to work-pieces, and wire feeding will speed up automatically while pressing the wire back button. Wire will be sent back automatically while welding finish
6. AC frequency and duty cycle both adjustable
7. Two wires will not influence each other and will not interfere each other

Technical features

1. In AC SAW welding, the heat input is lower than that of DC SAW welding, suitable for welding metals such as high-strength steel, ultra-high strength steel, and nickel steel
2. AC SAW welding is suitable for splicing welding, welding with small deformation, welding with few heat affected zones
3. Can realize three-wire or four-wire welding together with DC SAW welding machine and realize quick and high efficiency welding

Technical Parameters

 Our Tri-wire tri-arc SAW machine is developed based on the all-digital submerged arc welding machine.

One system include one MZ7-1600 DC submerged-arc power source and two sets of MZE-1250 AC/DC square-wave submerged-arc power sources,and one three-wire welding tractor as well as one control panel.

Features：

▉ Both power source and tractor DSP all-digital control and digital communication

▉ With expert database, and 30 saving channels

▉ Digital display and presetting of current, voltage and marching speed

▉ AC frequency, duty ratio adjustable

▉ AC/DC power source and DC power source work simultaneously without affecting each other

Technical Features：

1. DC power source goes ahead, and AC/DC power source flows, which guarantee good appearance and good weld
2. In welding, the given welding parameters of DC power source should be bigger than or equal tothat ofAC/DC power source
3. After grating feedback control, wire feeding will be more stable and can speed up before resistance, especially suitable for barrel wire
4. With auto warning function after wire touches the workpieces well, high arc-ignition success rate
5. Duty ratio of 50% and frequency of 15-30 is recommended
6. Suitable for high-speed high-efficiency welding of thick plate and ultra-thick plate
7. Especially suitable for using in petrol tube, gas tube, ship making, wind tower, and son on

Technical parameter of DC power source

Parameter of AC power source

Features:

▉ IGBT module full-bridge soft switching inverter technology, high efficiency, energy saving

▉ Automatic protection from phase loss, over-current, overheating, over-voltage and under-voltage

▉ Precise preset welding current, voltage and march speed

▉ Wide voltage adoption, with a voltage fluctuation of ±20%; 100% duty cycle

▉ Wire feeding auto detecting, when it is in good contact with the workpiece, wire feeding will stop aromatically, press and hold to automatically accelerate the feeding and unwinding, and automatically unwind the wire after welding.

▉ Can realize efficient welding of thick plates instead of tandem wire tandem-arc SAW machine

▉ Two kinds of heads:: A (diameter of forward wire is 3.2mm, and that of backward wire is 4mm or 5mm)

B: (the diameter of two wires is the same)

▉ Double wires do not affect each other, do not interfere with each other, and have strong arc penetration

▉ It can realize high-effective welding to thick plate instead of double-wire double-arc welding and high-efficiency

surfacing in double-wire parallel welding

▉ It is the first choice welding power source for gantry welding, welding manipulators and other special

Technical Features：

①Thick wire ahead thin-wire-following big penetration welding

1. The front wire starts arc while touching the workpiece and the rear wire doesn’t need to touch workpiecs

for arc starting

2. Diameter of front wire is 3.2mm, the diameter of rear wire is 4mm, and the welding currents will be matched

Automatically according to the proportion of 2:1

3. The distance between two wires is 3-6mm, the front wire can increase the molten depth, and the rear can increase the molten width
4. There is no need to bevel and leave a gap when welding on both sides of the T type weld with a plate thickness of 30mm

②The same thick wire welding

1. The front wire starts arc while touching the workpiece and the rear wire doesn’t need to touch workpieces for arc starting
2. The welding current of front and rear wires is automatically matched by 1:1
3. The distance between the front and rear wires is 3-6mm, the front wire increases the penetration depth, and the rear wire increases the molten width
4. It can replace double wire double arc submerged arc welding

③Efficient surfacing of the same thick wire (for surfacing, a special surfacing control box is required)

1. Two welding wires of the same thickness are welded in parallel
2. The left and right wire welding current is automatically matched according to 1:1
3. The width of one-time welding weld can reach more than 40mm

Features:

▉  IGBT module, all-bridge soft-switch inverter technology, high efficiency and power saving

▉  Automatic protection from phase lacking, over current, over-heat, over/under voltage

▉  Precise presetting of welding current, voltage and marching speed

▉  CC/CV, suitable for both thin and thick wires

▉  Support SAW, MMA, and gouging

▉  Excellent touchable arc starting and no-touching arc starting function

▉  Strong arc penetration force, different welding tractors are optional

▉  Wire feeding auto checking, while the wire connects the work-pieces well, wire-feeding stops automatically, press the wire sending/back without release, wire sending or wire feeding will be speed up automatically, wire will be drawn back automatically after welding finish

 ▉  Wide voltage adoption, ±20%

▉  Can weld mild steel and stainless steel, the first-choice power source of gantry welding and operator.

▉ In hot wire welding, the welding wire is preheated to 500-900℃ in advance before being fed into the arc area, therefore, the molten speed of unit current wire is increased, and the welding efficiency is increased accordingly

▉ In hot wire welding, under the same current conditions, the welding wire melting speed can be increased by about 15-30%; the heat input of the weld is reduced by 10-20%; the penetration depth is increased by 10-20%; the flux consumption is reduced by 10-30%

Parameters

Suitable industries:

Construction machinery, pressure vessels, shipbuilding, steel structures, wind towers, metallurgy, petroleum, bridges, etc.

Our all-digital AC/DC square-wave SAW machine is developed on the DC SAW machine adopting the inverter technology twice, with wonderful welding result. The details is: the 3-phase 380V/50Hz power will change into HF AC after the filtration of the power frequency rectifier and role of inverter. And over high-frequency transformation and rectification, feedback control of output signal, the smooth and continuously adjustable DC will be got. After the second inversion, the DC will be changed into low-frequency AC for automatic welding of work pieces.

Features

▉ Both power source and tractor DSP all-digital control and digital communication

▉ With expert database, and 30 saving channels

▉Menu and functions LCD display and control, easy to operate

▉ Start-arc anti-stick, auto wire back while arc stops

▉ Digital display and presetting of current, voltage and marching speed

▉ Support MMA, SAW and gouging

▉ AC frequency and duty ratio adjustable

Technical Features

1. CC and CV in both DC welding and AC welding
2. AC CV is recommended for AC quick welding, arc can burns more stably
3. With auto alarmfunction after wire touches the workpieces well, high arc-ignition success rate
4. 4. Duty ratio of 50% and frequency of20-35Hz is recommended

Parameters

Parameter of DC power source

Features:

■ IGBT module as the main power apparatus, adopt soft-switch inverter technology, high efficiency, power saving

■ DSP all-digital control and communication of machine and tractor

■ With expert database inside, can keep 30 sets of parameter

■ All-digital LCD menu to show function and parameter

■ Anti-stick, automatic arc filling, automatic wire back-sending while arc stopped

■ Wide adjustment range of welding voltage, small fluctuation of welding current and voltage

■ Digital display of current, voltage, and marching speed

■ Support GTAW and carbon gouging, high using ratio

■ Input voltage fluctuation of ±20% is tolerable

Features：

■ Both power source and tractor DSP all-digital control and digital communication

■ With expert database, and 30 saving channels

■ Menu and functions LCD display and control, easy to operate

■ Start-arc anti-stick, auto wire back while arc stops

■ Digital display and presetting of current, voltage and marching speed

■ AC frequency and duty ratio adjustable

■ AC/DC power source and DC power source work simultaneously without affecting each other