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| robre... |
 Posted: Wed Oct 07, 2009 9:52 am |
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Guest
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I was recently in Italy where my company bought a new extrusion line
from SIMA. We test ran the new line and I was amazed that there was
no water carry out of the quench tank with this line. Absoluely none,
even before the filaments passed over a de-watering vacuum device. We
have a very similar line in the US and we have tons of water carry
problems. By the way, the materials were identical. We shipped them
over to Italy.
I took some of the quench water back home with me to test alongside
our plant cooling water. Main differences were: SIMA water was hard
with conductivity of 460. Our water is soft with conductivity of
1400. Of course our soft water contains more sodium than the SIMA
water--272 mg/L compared to 19 mg/L. Our water was considerably more
basic--PH 9.18 compared to SIMA's 7.8. And our water is treated with
various biocides.
Does anyone have any idea why there is such a huge difference in water
carry over?
Thank you,
Bob |
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