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Problem & Solution

Practical answers to common plastic material challenges

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11636 questions
Q
DSTDP injection cold slug marks
A
Cold slug marks are caused by solidified residual material in the nozzle; raising nozzle temperature and cold slug well design are key
Injection Molding DSTDP injectioncold slug marksnozzle temperaturecold slug wellinjection pressure
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Q
DSTDP extruded film winding wrinkling
A
Film wrinkling is caused by tension fluctuation and uneven thickness; automatic tension control and uniformization are key
Extrusion & Post DSTDP filmwinding wrinklingtension controlthickness uniformityguide roller parallelism
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Q
DSTDP injection flow marks
A
Flow marks are caused by unstable injection front and rapid cooling; multi-stage injection and high mold temperature are key
Injection Molding DSTDP injectionflow marksinjection speedmold temperaturegate area
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Q
DSTDP injection sink marks
Q
DSTDP repeated processing performance decay
A
Multiple processing performance decay is caused by thermo-mechanical degradation; limiting regrind and supplementing antioxidant are key
Production & Quality DSTDP recyclingperformance decayantioxidant supplementthermal degradationshear degradation
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Q
DSTDP injection multi-cavity unbalanced filling
A
Multi-cavity unbalanced filling is caused by runner design; balanced runner and mold flow analysis are key
Injection Molding DSTDP injectionmulti-cavity balancerunner designgate sizemold flow analysis
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Q
DSTDP injection molded product ejector whitening
Q
DSTDP extruded film thick edges and thin middle
A
U-shaped thickness is caused by die flow channel and swell differences; coat-hanger die and gap fine adjustment are key
Molding Process DSTDP filmthickness distributioncoat-hanger diegap fine adjustmentedge effect
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Q
DSTDP extrusion unstable feeding
A
Unstable feeding is caused by granule characteristics; loss-in-weight feeding and anti-bridging are the core
Extrusion & Post DSTDP feedingbridgingloss-in-weight feedergranulationfeeding screw
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Q
DSTDP injection weld line low strength
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