Solutions for
PET bottle blow molding problems, Part 2.
19, PET bottles are not fully /completely blown in the
vertical direction
A,
Causes:
1, The
temperature for the not-full part is too high
2,
Preforms cold spot on the not-full part
3, Air
pressure is not enough
4, Air quantity is not enough
5, Air
extraction of the mold is not good
6,
Mold temperature is too high
7,
Preform is too thin
8,
Stretch ratio of the preform is not enough
B,
Solutions:
1, Reduce
the temperature for the not-full part
2, Do
not touch the heated preforms body, incase the temperature drop by hand
touching
3, Increase
the air pressure
4,
Increase the air quantity
5,
Increase the air extraction
6, Use
cooling water for the mold
7, Fix
the preforms mold
8,
Increase the stretch ratio in the vertical way.
http://www.sinobema.com/Difference-between-bottles-of-pure-water?article_id=197
www.sinobeveragemachinery.com
WhatsApp: 0086 137 28668423
WhatsApp: 0086 137 28668423
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