topwell 250/300 amp double pulse mig welder ALUMIG-250P for ALUMINUM welding

Pulse MIG precisely controls heat input through the
1-drop-per-pulsetransfer and offers a stable arc in the
wide transfer area between short and spray arc.
Spray arc transfer “sprays” a stream of tiny molten
droplets across the arc, from the electrode wire to the
base metal.It produces a characteristic humming
or buzzing sound.

Advantages of pulse mig:
• High deposition
• Good fusion and penetration
• Good bead appearance
• Capability of using larger diameter wires
• Presence of very little spatter

1.SELECT the Memory channel
2.OPEN the parameter of selected memory channel
3.STORE the setting to Memory channel
4. Push to Check Gas
5.STORE Push to use Synergic Setting
6.Welding parameter setting,rotary dial
Adjudtment of the welding current or feeding speed.
7.Torch Holding Mode
Push to select the torch handing type:
1)2T

2)4T
3)S4:for aluminiu welding form cold to hot situation.
8.Welding Process Push to select:
Welding prcess:MMA,MIG/MAG/CO2,Pulse MIG,
Double Pulse MIG.
9.Dia. of Welding Wire
10.Wire Type
11.button,throttling effect(arc dynamics)
12.Function Sequence
13.Welding Settings

Synergic pulsed welding mode offers the simplicity of
single-knob control.The machine will select the correct pulse
power based on the wire feed speed (WFS) set by the operator.

Begin and end welds with ease and confidence.Hot start
eliminates incomplete fusion at the beginning of a weld,
a common issue with aluminum welding.Crater gradually
decreases weld current at the end of a weld to eliminate
crater defects.Adjustable pre- and post-flow rates ensure
that the puddle always has adequate gas coverage.