Honeywell CS071AE User Manual page 9

Description of Problem
Poor material distribution
and/or excessive thinning in
specific areas.
TROUBLE-SHOOTING GUIDE
Possible Causes
• Part too thin.
• Mold too cold.
• Poor mold design.
• Uneven heating of the sheet.
• Excessive gauge variation in
the sheet.
• Cold mold.
• Excessive sag.
Possible Corrective Action
• Reduce the temperature of the
heaters to prevent surface
scorching.
• Reduce the distance the heaters are
in relation to the sheet being
heated.
• Increase the thickness of the sheet.
• Change the forming technique to
improve the part thickness.
• Shade the oven or turn down the
element temperatures in the area
the part is thinning.
• Increase mold temperature.
• Change draft angles.
• Increase radii.
• Change mold geometry to reduce
the draw ratio.
• Check the heaters to see if they are
set properly.
• Check for faulty heaters.
• Check for drafts or air currents in
the oven.
• Shade oven if element zoning is
not possible.
• Check to see if the elements are too
close to the plastic.
• Check the gauge of the sheet.
• Increase the mold temperature.
• Check the mold for plugged water
lines.
• Cut down sheet temperature.
• Use zone heating to cut down
temperature in the center of the
sheet.
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