Problem & Solution

Practical answers to common plastic material challenges

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Q

PET hot filling deformation

A

Hot filling and normal-temperature bottle types cannot be mixed; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PEThot fillingheat settingcollapse

Q

PET bottle mouth deformation

A

Bottle mouth cooling is the guarantee of sealing precision; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Molds & Tooling PETbottle mouthdeformationsealing

Q

PET insufficient pressure resistance

A

Carbonated bottles are designed for wall thickness and orientation according to internal pressure creep; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting sim...

Processing Machinery PETcarbonated bottlepressure resistancecreep

Q

PET drop breakage

A

Drop strength is guaranteed by orientation design and bottle bottom structure; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Extrusion & Post PETdropstretch ratiobottle bottom

Q

PET bottle body stress cracking

A

Stress cracking requires three-party verification of structural design, process, and contents; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar probl...

Processing Machinery PETstress crackingbottle bottomcompatibility

Q

PET preform bottom crystallization

A

Preform bottom crystallization relies on temperature and cooling control; defective preforms must be rejected; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooti...

Extrusion & Post PETpreform bottomcrystallizationcooling

Q

PET white haze six-step troubleshooting

A

The six-step systematic troubleshooting method for white haze avoids single-path misjudgment; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar proble...

Material Drying PETwhite hazesix stepstroubleshooting

Q

PET gel particle and impurity control

A

Gel particles rely on a three-pronged approach of filtration, plasticization, and raw material; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar prob...

Processing Machinery PETgel particlefiltrationplasticization

Q

PET black speck systematic cleaning

A

Black specks are eradicated by disassembly and washing; trend monitoring prevents recurrence; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar proble...

Molds & Tooling PETblack speckdisassembly washingdead corner

Q

PET yellowing segmented location

A

Segmented sampling comparison of yellowing locates the responsible link in one go; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the f...

Material Drying PETyellowingsegmentationlocation

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