Problem & Solution

Practical answers to common plastic material challenges

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Q

LCP Product Ejection Deformation

A

LCP thin-wall part ejection requires refined design; uniform force bearing is the principle.; 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 p...

Processing Machinery LCP;ejection;deformation;thin wall;ejector pin;draft

Q

LCP Product Black Specks

A

Black specks point to equipment cleanliness; the purging frequency for high-temperature materials must be increased.; 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 t...

Processing Machinery LCP;black speck;carbonization;cleaning;residence time;dead spot

Q

LCP Excessive Holding Pressure Internal Stress

A

LCP requires light holding pressure; the near-zero shrinkage characteristic determines that its holding strategy is opposite to conventional plastics.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery LCP;holding pressure;internal stress;shrinkage;stress;setting

Q

LCP Anisotropic Warpage

A

The root of LCP warpage is the anisotropy of molecular orientation; filled grades can significantly reduce anisotropy (contrary to ordinary resins), and gate design is the first means.

Processing Machinery LCP;anisotropy;warpage;orientation;filling;gate

Q

HDPE Dimensional Drift

A

HDPE dimensions are based on inspection after aging; 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 HDPEdimensional driftpost-crystallizationaging

Q

HDPE Black Speck

A

Black speck radical cure relies on disassembly cleaning and monitoring; 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 HDPEblack speckdead spotdisassembly cleaning

Q

HDPE Yellowing

A

For yellowing, check temperature, residence, and antioxidant system; 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 HDPEyellowingoxidationantioxidant

Q

HDPE Glass Fiber Floating

A

Floating fibers are improved by mold temperature, speed, and grade; 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 fiberfloating fibermold temperature

Q

HDPE Regrind Specks

A

Regrind specks are controlled by sieving and ratio; 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 HDPEregrindspeckssieving

Q

HDPE Stress Cracking

A

HDPE stress cracking is selected and verified according to ESCR; 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 HDPEESCRstress crackingmedium

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