MAGNATECH Pipeliner II 609A, Инструкция по эксплуатации и техническому обслуживанию

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D. Demonstrate torch angles, i.e., lag, lead, in (towards weld
Head), out, etc. Explain usage advantages and possible
problems.
E. Demonstrate weld Head installation on the guide ring at
different positions. Demonstrate use of clutch for rapid
positioning of weld Head.
8.5.2.7 Pendant.
A. Show and explain Pendant Control layout.
B.
Demonstrate each variable on the Pendant, i.e., oscillation
dwell time, travel speed, etc.
C.
Stress the importance of electrode position when
oscillating to ensure sidewall fusion.
D.
Explain excursion time and dwell time functions and how
these variables determine optimum travel speed.
E.
Identify and demonstrate switch on weld Head controlling
rotation direction.
F.
Demonstrate Use the center function on Pendant and to
correctly position torch tip for stringer beads and
oscillation.
G.
Let operators operate functions on Pendant (no arc) to
become familiar with each parameter and adjustment.
8.5.3 WELDING
Note: It is recommended that the initial welding demonstration be carried
out by the instructor using developed parameters. Perform demonstration
with set-up to be used in construction, i.e. Manual Root and Hot Pass -
Fill and Cap with Orbital, use of Internal Clamp, etc. It should be
assumed that the trainees have never seen the system in operation;
therefore, they need to be shown that the equipment can and will produce
high-quality welds with minimal operator adjustments. Stress the fact that
the operators must monitor the welding and make corrections, if
necessary.
A. Make a good initial weld with pre-established parameters to
demonstrate a customer-acceptable weld.
B. On the next weld, demonstrate the effects during welding of
changing parameters such as: (I) electrode stick-out, (ii) oscillation
width, (iii) dwell and excursion time, (iv) travel speed, (v) wire
feed, (vi) arc trim, (vii) gas flow, etc.
C. Stress the importance of watching and pre-positioning of the torch
cable to avoid binding or snagging, etc.