By eliminating lay-flat issues, width and gage variations, uneven shrinkage, and tendency of material to curve slightly to one side when unwound, Process Control System ensures complete dimensional uniformity and tension throughout bulk PVC rolls produced. Prior to control, operators would have to manually adjust line to maintain consistency on product-to-product basis. Control eliminates guesswork.
This story is related to the following:
Controls and Controllers
Chemical Processing and Waste Management
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