Problem & Solution

Practical answers to common plastic material challenges

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Q

HDPE Burnt

A

HDPE burnt is treated as trapped gas venting; after confirming effectiveness, solidify 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 HDPEburnttrapped gasventing

Q

HDPE Sink Mark

A

HDPE sink marks rely on holding pressure and wall thickness design; after confirming effectiveness, solidify 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 HDPEsink markholding pressurewall thickness

Q

HDPE Warpage Deformation

A

HDPE warpage is a comprehensive test of shrinkage management; uniform wall thickness plus balanced cooling plus controlled cooling rate; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery HDPE;warpage;uneven cooling;wall thickness;3℃/s

Q

HDPE Short Shot

A

HDPE thin-wall short shot relies on temperature, speed, and gate; after confirming effectiveness, solidify 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 HDPEshort shotthin wallgate

Q

HDPE Pipe Uneven Cooling

A

HDPE pipe roundness is a mirror of cooling uniformity; matching external cooling and internal cooling parameters is the key; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery HDPE;pipe;ovality;sizing;cooling

Q

HDPE Anisotropy

A

Anisotropy is controlled by flow symmetry and mold flow prediction; after confirming effectiveness, solidify 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 HDPEanisotropyshrinkagemold flow

Q

HDPE Glass Fiber Reinforced Part

A

Warpage of reinforced HDPE is controlled by design and mold flow; after confirming effectiveness, solidify 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 HDPEglass fiberwarpagemold flow

Q

HDPE Molecular Weight Selection

A

HDPE grades are matched to process and strength by melt index; after confirming effectiveness, solidify 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 HDPEmolecular weightmelt indexmaterial selection

Q

HDPE Septic Tank

A

Rotomolded containers are guaranteed by process and leak testing; after confirming effectiveness, solidify 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 HDPErotomoldingseptic tankleak testing

Q

HDPE Fish Farm Float

A

Marine environment parts are managed by weather resistance plus maintenance; after confirming effectiveness, solidify 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 fu...

Processing Machinery HDPEfloatseawaterweather resistance

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