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مهندسی شیمی::
حدیده مرغک حلزونی
How- ever, it became clear that spiral mandrel dies are equally (if not more) beneficial in
This combined with the near absence of weld lines make spiral mandrel dies capable of producing a tube or pipe with better mechanical properties simply by modifying the flow inside the die.
Spiral mandrel dies can be used with a wide range of materials over a wide range of operating conditions.
Spiral mandrel dies can achieve good flow distribution and largely eliminate weld lines.
As a result, spiral mandrel dies are widely used in blown film extrusion.
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