Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PET beer bottle barrier

A

Beer bottles must have a barrier structure, and single-layer PET does not meet the standard; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent...

Processing Machinery PETbeer bottlebarrieroxygen transmission

Q

PET mineral water bottle

A

Lightweighting is premised on structural reinforcement and cannot simply reduce material; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent si...

Processing Machinery PETwater bottlelightweightingcompression resistance

Q

PET film biaxial stretching

A

BOPET's stretching window is built on cast sheet quality; uniform crystallization is the prerequisite for high-speed stable stretching; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PET；BOPET；biaxial stretching；cast sheet；corona

Q

PET wide-mouth bottle preform

A

The bottle finish is the functional vital point of a wide-mouth bottle; dual control of crystallinity and dimensions holds the bottom line of sealing; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PET；wide-mouth bottle；bottle finish crystallization；sealing；thread

Q

PET cosmetic bottle

A

Pearlescent white haze is a sign of insufficient PET orientation; matching adjustment of temperature and stretching is the key process for the appearance of high-end bottles; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PET；cosmetic bottle；pearlescence；stress whitening；stretching

Q

PET edible oil bottle

A

Oil bottle whitening points to local loss of control of crystallization and orientation; the uniformity of the preform temperature field is the prerequisite for transparency; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PET；oil bottle；whitening；crystallization；stretch orientation

Q

PET carbonated beverage bottle pressure resistance

A

The pressure resistance of a carbonated bottle is a ternary function of IV, structure, and orientation; any shortfall is exposed in the pressure test; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PET；carbonated bottle；pressure resistance；IV；stretch ratio

Q

PET hot-fill bottle

A

Hot filling is a high-end process for PET bottles; heat-set crystallinity is the foundation of temperature resistance, and ordinary bottles cannot be used beyond their level; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molding Process PET；hot filling；heat setting；crystallinity；temperature resistance

Q

PET injection machine selection

A

PET has specific requirements for the '2079851475616104452 machine; the number of temperature control zones and the shot weight ratio are the two major verification items for equipment matching; after confirming effectiveness, solidify the parameters and practices into the work instruction to pre...

Injection Molding PET；injection machine selection；temperature control zones；shot weight；clamping force

Q

PET regrind ratio 25%

A

25% is the general upper limit for PET regrind; the three managements of drying, ratio, and application grading stabilize the use value of regrind; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PET；regrind；25%；IV；batch stability

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