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Problem & Solution

Practical answers to common plastic material challenges

2239 questions
Q
Random copolymer polypropylene pipe special material (Nordic standard) extruded products excessive shrinkage rate
Q
Random copolymer polypropylene pipe special material (Nordic standard) pipe longitudinal reversion rate exceeding standard
Q
Random copolymer polypropylene pipe special material (Nordic standard) PPR pipe cyclic pressure fatigue failure
Q
Random copolymer polypropylene pipe special material (Nordic standard) PPR pipe thermal aging performance substandard
Q
Random copolymer polypropylene pipe special material (Nordic standard) extruded pipe uneven wall thickness
A
Uneven wall thickness is caused by uneven die gap or uneven temperature, and needs to be solved from mold precision and temperature uniformity.
Extrusion & Post uneven wall thicknessdie concentricitytemperature uniformityhaul-off stabilitysizing sleeve
Q
Random copolymer polypropylene pipe special material (Nordic standard) PPR pipe insufficient long-term hydrostatic strength
Q
Random copolymer polypropylene pipe special material (Nordic standard) extrusion raw material melt flow rate mismatch
A
MFR mismatch needs to be solved by selecting suitable grades and adjusting temperature parameters.
Extrusion & Post melt flow rategrade selectionextrusion gradeprocess adjustmentbatch testing
Q
Random copolymer polypropylene pipe special material (Nordic standard) extruded products surface bamboo marks/melt fracture
Q
Random copolymer polypropylene pipe special material (Nordic standard) extruded products surface sharkskin marks
Q
Random copolymer polypropylene pipe special material (Nordic standard) extruded pipe bending deformation(Variant: Mass Production Scenario)
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