Problem & Solution

Practical answers to common plastic material challenges

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Q

HDPE Melt Fracture Sharkskin

A

Sharkskin is a shear critical phenomenon in HDPE extrusion; reducing speed, increasing mold temperature, and adding PPA work together; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post HDPE;melt fracture;sharkskin;shear rate;PPA

Q

HDPE Double-wall Corrugated Pipe

A

Corrugated pipe interlayer welding relies on parameters 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

Extrusion & Post HDPEcorrugated pipeweldingdelamination

Q

HDPE sheet extrusion

A

HDPE sheet quality is the product of die lip precision and speed control; precise adjustment plus additive coordination; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post HDPE; sheet; thickness; melt fracture; die lip

Q

HDPE cable sheath

A

Cable sheath uses special material plus temperature management; 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 similar future problems

Extrusion & Post HDPEcable sheathextrusionspecial material

Q

HDPE automotive fuel tank

A

The permeation resistance of HDPE fuel tanks relies on structure rather than the material itself; multi-layer co-extrusion is the industry standard solution; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post HDPE; fuel tank; multi-layer co-extrusion; fluorination; permeation resistance

Q

HDPE pipe extrusion

A

The wall thickness uniformity of HDPE pipe is the basis of pressure resistance; the three systems of coaxiality, cooling and haul-off are precisely coordinated; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post HDPE; pipe; eccentricity; sizing; haul-off

Q

HDPE pipe temperature

A

Pipe surface quality is guaranteed by the temperature curve; 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 similar future problems

Extrusion & Post HDPEpipeextrusion temperatureroughness

Q

HDPE film blowing cooling

A

Film optics and opening property rely on cooling control; 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 similar future problems

Extrusion & Post HDPEfilm blowingair ringtransparency

Q

HDPE film blowing temperature

A

Stable film blowing temperature is the prerequisite for film bubble stability; 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 similar future problems

Extrusion & Post HDPEfilm blowingtemperaturefilm bubble

Q

HDPE film improper barrel water cooling

A

Barrel cooling is a neglected factor affecting output; standardized water cooling management can stabilize conveying efficiency.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post HDPE; film; barrel; water cooling; output; conveying

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