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Yaygın plastik malzeme zorluklarına pratik yanıtlar

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Improper PSU Back Pressure Setting

The 3~10 window for PSU back pressure is clear supplier guidance; failure modes in both directions must be prevented; linked debugging is the most efficient.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence

Molding Process PSU; back pressure; shear heat; bubbles; compactness; adjustment

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GPPS Stress Whitening

Stress whitening is the apparent manifestation of the PS craze mechanism; low-stress design of structure and process is the core of prevention.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molding Process PS;GPPS;stress whitening;craze;ejection;snap-fit

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PP Automotive Parts Application

PP is the main force of automotive lightweighting, covering everything from bumpers to battery cases; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for simila...

Molding Process automotive bumper LFT lightweighting

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PP Melt Temperature 200-280 Window

PP melt temperature 220-260°C is normal, 280°C is the degradation red line; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar future problems

Molding Process melt temperature window degradation thin wall

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PPS Chemical Resistance Applications

PPS's chemical resistance spectrum is second only to fluoroplastics; being insoluble in any solvent below 200°C is its signature advantage; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molding Process PPS; chemical resistance; solvent; 200°C; strong oxidizing acid

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PPS Sink Marks

PPS sink mark treatment gives equal weight to holding pressure and structure; the rib ratio is the preventive line on the design side; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molding Process PPS; sink mark; holding pressure; rib; 60%

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PPS wall thickness design upper limit

PBT thick wall is the structural forbidden zone of PPS; 7-10mm upper limit plus holding pressure feeding, cracks remedied by annealing; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molding Process PPS; wall thickness; 7-10mm; shrinkage cavity; internal crack

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PPS shrinkage and glass fiber

PPS shrinkage shows strong directionality due to glass fiber orientation; directional allowance is the basic skill of mold design; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molding Process PPS; shrinkage; anisotropy; glass fiber; allowance

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PPS back pressure control

PPS back pressure is mainly low, raised as needed; when discoloration and embrittlement occur, back pressure is the first suspect parameter; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molding Process PPS; back pressure; 0.1-1.0MPa; metering; overheating

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PPS melt temperature 300-340℃

The high-temperature window 300-340℃ of PPS is a balance of flowability and safety; exhaust configuration is a supporting requirement for high-temperature processing; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molding Process PPS; melt temperature; 300-340℃; 360℃; exhaust

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Tüm Konular 11636 Material Drying 1439 Injection Molding 1506 Molding Process 740 Molds & Tooling 1506 Processing Machinery 2025 Extrusion & Post 2239 Blow Molding 315 Thermoforming 141 Material Analysis 1343 Production & Quality 382

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