|
Blow-up ratio
|
-
Use a smaller die head to increase the blow-up ratio
|
|
Improper die design or scratches
|
-
Clear die impurities
-
Fix scratches on the die head
-
Avoid seams by design
|
|
Material cracking
|
-
Change the material
-
Turn down heating temperature
|
|
Inappropriate raw material formula
|
-
Select raw materials with suitable Melt Index (MI)
-
Select compatible additives
|
|
Uneven gels mix
|
-
Use screw with a greater L/D
-
Adjust the melt temperature
-
Use multi-layer strainer meshes for filter, or reduce the die gap, to improve back pressure
|
