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match wire type. Steel wire hose is suitable for hard wire, such as solid carbon steel,
stainless steel wire. Teflon hose is suitable for soft wire, such as aluminium and its alloys,
copper and its alloy welding wire. Wire feeding tube is too tight or too loose, can increase
the wire resistance and effect wire feeding instability. Tighten the torch quick connectors, in
order to make sure there is no voltage drop on the surface of the contact. Loosing contact
lead to pressure drop, which will cause the welding torch and the wire-feeding machine to
be heated.
Steel wire feeder tube installation as shown in figure 15:
Steel hose
(
suitable for
welding of steel
)
wire
Steel hose
Steel wire
feeding tube
Steel guide
bar
Fig 15
:
Steel wire feed tube installation schematic diagram