Problem & Solution

Practical answers to common plastic material challenges

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Q

PVB Thickness Unevenness

A

PVB thickness uniformity is the premise of laminated glass quality; automatic monitoring is standard; die maintenance ensures long-term precision.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PVB;thickness;unevenness;die;monitoring;die lip

Q

PVB Melt Viscosity Instability

A

PVB melt viscosity stability is the foundation of film quality; multi-parameter stable control; online monitoring is a modern means.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PVB;viscosity;stability;thickness;plasticization;monitoring

Q

PVB Improper Extrusion Temperature Degradation

A

PVB's 160~200℃ temperature window prevents degradation; residence time management is equally important; uniformity guarantees consistent quality.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PVB;temperature;degradation;yellowing;residence;uniformity

Q

PTFE Large Product Limitations

A

PTFE large products must break through compression molding thinking; processes such as winding expand boundaries; size effects need special verification.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PTFE;large;compression molding;winding;equipment;verification

Q

PTFE Paste Extrusion Lubricant

A

Lubricant management of PTFE paste extrusion is a unique subject; compatibility selection is the foundation; removal verification prevents defects.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PTFE;paste extrusion;lubricant;removal;compatibility;residue

Q

PTFE Lining Deformation and Delamination

A

PTFE lining's thermal expansion mismatch is a structural contradiction; molding quality determines bonding reliability; negative pressure conditions are a severe test.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PTFE;lining;delamination;expansion;negative pressure;anticorrosion

Q

PTFE Filler Segregation

A

PTFE filler segregation affects the uniformity of wear resistance, thermal conductivity, and strength; mixing process is the foundation; handling management is the detail defense line.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PTFE;filler;segregation;mixing;glass fiber;uniformity

Q

PTFE Laminate Delamination

A

Cleanliness and pressure uniformity of PTFE laminates determine interlayer quality; grade compatibility is easily overlooked; non-destructive testing is quality assurance.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PTFE;lamination;delamination;bonding;contamination;grade

Q

PTFE Dimensional Shrinkage Out of Tolerance

A

PTFE's 15~20% shrinkage is an inherent characteristic of the powder metallurgy-type process; mold compensation design is the premise of dimensional accuracy; filled modification is a material means to reduce shrinkage.

Extrusion & Post PTFE;shrinkage;dimensions;sintering;compensation;filling

Q

PTFE Poor Surface Finish

A

PTFE surface quality is critical for sealing and friction applications; tool sharpness is the foundation on the machining side; mold cleanliness transfer is a detail on the molding side.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PTFE;surface;scratches;tools;lubricant;mold

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