المشاكل والحلول

إجابات عملية على التحديات الشائعة في مواد البلاستيك

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PET Bottle Neck Crystallization (White Neck)

White neck = heat protection failure.

Molding Process PET; bottle neck; crystallization; shading; lamp zone

PET Preform Flash

Flash = clamping and pressure.

Molds & Tooling PET; preform; flash; clamping; holding pressure

PET Preform Injection Mold Sticking

Mold sticking = holding pressure and cooling.

Injection Molding PET; preform; mold sticking; holding pressure; cooling

PET Preform Missing Moisture Verification

Intermittent haze = drying system state drift.

Material Drying PET; drying; dew point; molecular sieve; dehumidification

PET Sheet Extrusion Bubbles

Bubbles = drying dew point.

Material Drying PET; sheet; bubble; drying; dew point

PET Sheet Extrusion Crystallization Haze

Sheet haze = cooling rate and moisture.

Material Drying PET; sheet; extrusion; crystallization; chill roll

PET Preform Stringing

Stringing = gate temperature and timing.

Molds & Tooling PET; preform; stringing; hot runner; valve pin

PET Preform Injection Short Shot

Preform short shot = pressure and venting.

Injection Molding PET; preform; short shot; injection pressure; venting

PET Bottle Thin Shoulder

Thin shoulder = upper heat + pre-blow rhythm.

Molding Process PET; bottle blowing; thin shoulder; lamp zone; pre-blow

PET Bottle Bottom Material Accumulation (Thick Bottom)

Thick bottom = too much heat at the bottom, the rod not in place.

Extrusion & Post PET; bottle blowing; thick bottom; lamp zone; stretch rod

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