Strata ADVANCEARC 400, Руководство по эксплуатации

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ADVANCEARC 400 • ADVANCEARC 500
2.3 Open gas cylinder valve and adjust regulator,
flow should be between 5-10 l/min depending
on application. Re-check regulator flow pressure
with torch valve open as static gas flow setting
may drop once gas is flowing.
2.4 Connect the machine to suitable mains power
using the mains input power lead. Switch the
mains power switch to ‘on’ to power up the ma-
chine. Select Lift TIG welding mode (8) using the
button (5).
High Tensile and Alloy Steels
The two most prominent effects of welding these
steels are the formation of a hardened zone in the
weld area, and, if suitable precautions are not taken,
the occurrence in this zone of under-bead cracks.
Hardened zone and underbead cracks in the weld area
may be reduced by using the correct electrodes, pre-
heating, using higher current settings, using larger
electrodes sizes, short runs for larger electrode de-
posits or tempering in a furnace.
Manganese Steels
The effect on manganese steel of slow cooling from
high temperatures causes embrittlement. For this
reason it is absolutely essential to keep manganese
steelcool during welding by quenching after each
weld or skip welding to distribute the heat.
Cast Iron
Most types of cast iron, except white iron, are weld-
able. White iron, because of its extreme brittleness,
generally cracks when attempts are made to weld it.
Trouble may also be experienced when welding
white-heart malleable, due to the porosity caused by
gas held in this type of iron.
Copper and Alloys
The most important factor is the high rate of heat
conductivity of copper, making pre-heating of heavy
sections necessary to give proper fusion of weld and
base metal.
Types of Electrodes
ARC Welding electrodes are classified into a number
of groups depending on their applications. There are
a great number of electrodes used for specialised in-
dustrial purposes which are not of particular interest
for everyday general work. These include some low
hydrogen types for high tensile steel, cellulose types
for welding large diameter pipes, etc. The range of
electrodes dealt with in this publication will cover the
vast majority of applications likely to be encountered;
are all easy to use.
MILD STEEL :
E6011 - This electrode is used for all-position welding or for welding
on rusty, dirty, less-than- new metal. It has a deep, penetrating arc
and is often the first choice for repair or maintenance work.
E6013
- This all-position electrode is used for welding clean, new
sheet metal. Its soft arc has minimal spatter, moderate penetration
and an easy-to-clean slag.
E7014 - All positional, ease to use electrode for use on thicker steel
than E6013. Especially suitable for sheet metal lap joints, fillet welds
and general purpose plate welding.
E7018 - A low-hydrogen, all-position electrode used when quality is
an issue or for hard-to-weld metals. It has the capability of producing
more uniform weld metal, which has better impact properties at low
temperatures.
CAST IRON
ENI-CL - Suitable for joining all cast irons except white cast iron.
STAINLESS STEEL:
E318L-16 - High corrosion resistances. Ideal for dairy work etc.
Electrodes for Joining Different Metals
Effects of MMA Welding Various Materials
2.5 Select the required output current using the
current control knob (1). You are now ready to
weld!
Please note, the AdvanceArc 400/500 is a DC (Direct
Current) output welder only, this means that it is un-
able to TIG weld reactive metals such as Aluminium
alloys and Brass (which require AC output). DC TIG
output is suitable for steel, stainless steel and copper.
The AdvanceArc ACDC series are the models in the
range that are designed for TIG welding Aluminium
and its alloys.