Английский для сварщиков. Гричин С.В. - 102 стр.

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102
превращений
weld bead наплавленный валик сварного шва
log file системный журнал
processing обработка
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Text 3. Man-machine Communication for Multi-run Arc Welding
The multi-run welding of heavy components imposes special demands on
man-machine communication (MMC) for automated welding systems.
Welding sequences of several hours with limited operator surveillance
necessitate pre-programming, not only of the nominal process data, but also
of other conditions for the successful performance of the welding process in
varying external conditions. Warnings of conditions requiring the operator's
attention must be given during welding. Should a situation occur in which
the quality of the weld is jeopardized, the process must be stopped in a
controlled manner and the reason for the stop must be displayed. Upon
completion of the weld, a presentation, indicating all the important events
during the welding cycle, should be made to determine the amount of non-
destructive testing. Provision should be made for further detailed
investigations of optional parts of the cycle, as well as for the storage and
documentation of the course of the process.
The operator interface for the ESAB multi-run MMC is an industrial
PC. The pre-programming modules are divided into blocks of set-up
parameters, process parameters, warnings, reports and stop limits. Different
sets of process parameters can be automatically retrieved during the welding
sequence. During welding, the screen shows the preprogrammed parameters,
the actual measured values and the way the process is progressing (e.g. layer,
bead and position).
If a warning is activated, the operator is given the choice of
immediately stopping the process stopping it after the completion of the bead
or allowing it to continue.
A small remote control box, which can be hand-held, contains the
controls the operator needs for preparing, starting and stopping the process.
The control system registers the welding sequence in two separate files, the
Weld Report and the multi-run. In the Weld Report, all the installation
parameters such as wire type and wire dimension, flux (or gas) type and
permissible inter-pass temperatures are stored, together with the specified

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