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November 18, 2005
What is Your Tension Problem?
How much should tension vary? This is a loaded question. Do you mean average tension as displayed by your tension transducer roller? ...or do you mean the actual tension in the web at point X.
I group tension problems into five categories.
1. Tension varies over time
2. Tension is too high
3. Tension is too low
4. Tension varies through the line (machine direction)
5. Tension varies across the web's width
Tension will vary. Even in closed-loop tension control, the web tension will oscillate around the set point by some percent.
Let talk about sources of tension variation, how they create process waste, and the proven remedies.
Posted by Tim Walker at November 18, 2005 08:22 AM
