Diamond Products SB - Manual (Page 29)

SB Wire Sawing System The diamond wire
SB_0107_e.mif Page 29
When flat running starts the number of twists
should be changed significantly if possible,
e.g. 2 to 4 or even more.
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To be able to assess whether the wire is
running round it should be measured peri-
odically (e.g. every 2 hours).
Thereby both the conical shape (left-hand
picture) and the out-of-roundness (right-hand
picture) should be established. Deviations in
the dimensions should be a maximum of
0.2 mm.
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If it is found that the wire has been running flat
or out-of-round it is essential to react imme-
diately.
Immediately twist the wire inwards more
strongly so that during cutting the beads are
increasingly led into the concrete spirally. This
forced winding makes the beads round again.
In addition the cutting pressure must be
reduced, particularly in the case of small wire
contact lengths.
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