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Problem & Solution

Practical answers to common plastic material challenges

11636 questions
Q
Oil spots on EEA injection molded products
Q
Low weld line strength in EEA injection
Q
Insufficient EEA injection flow length ratio
A
Insufficient flow length ratio is caused by EEA high viscosity; high temperature, high pressure and large gate are the key
Injection Molding EEA injectionflow length ratiomelt viscosityinjection temperatureflow aid
Q
Material sticking to the sizing sleeve of EEA extruded pipe
A
Sizing sleeve sticking is caused by elastomer adhesion characteristics; polishing and lubricating water are the key
Molding Process EEA pipesizing sleeve stickingpolishinglubricating waterelastomer adhesion
Q
Rough inner wall of EEA extruded pipe
A
Rough pipe inner wall is caused by mandrel condition and insufficient cooling; polishing the mandrel and internal cooling are the key
Extrusion & Post EEA piperough inner wallmandrel polishinginternal coolingmelt elasticity
Q
EEA extrusion film longitudinal streaks
Q
EEA film blocking, difficult delamination
Q
EEA extrusion profile bending deformation
A
Profile bending is caused by uneven cooling and uneven flow velocity; homogenization and alignment are the key to resolution
Extrusion & Post EEA extrusionbending deformationuniform coolinguniform flow velocitysizing sleeve
Q
Severe EEA injection flash
A
Flash is caused by high-pressure injection and mold gap; reducing pressure and improving mold fitting is the key
Injection Molding EEA injectionflashclamping forceparting lineinjection pressure
Q
Poor EEA extrusion film thickness uniformity
A
Film thickness uniformity requires coordinated optimization from three aspects: die design, gap adjustment and cooling
Extrusion & Post EEA filmthickness uniformitydie designextrusion swellair ring cooling
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