Problem & Lösung

Praktische Antworten auf häufige Herausforderungen mit Kunststoffmaterialien

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Q

PTFE Bonding Difficulty

A

The only way out for PTFE bonding is surface activation treatment; sodium naphthalene treatment is the industry standard method; treatment validity management affects success rate.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molding Process PTFE;bonding;surface energy;sodium naphthalene treatment;activation;composite

Q

PTFE Poor Wear Resistance

A

PTFE's low friction does not equal high wear resistance; filled modification is the premise of wear-resistant applications; PV value management is a design specification.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molding Process PTFE;wear resistance;friction;filler;PV value;modification

Q

PTFE Cold Flow Creep

A

PTFE cold flow is an inherent weakness of the pure resin; filled modification is the standard countermeasure; seal design must reserve creep compensation.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molding Process PTFE;cold flow;creep;seal;filling;deformation

Q

PTFE Warpage and Distortion

A

Thermal management and wall thickness design are equally important for PTFE warpage; 15~20% sintering shrinkage is the baseline data for process design; annealing is an effective post-treatment means.

Molding Process PTFE;warpage;distortion;thermal gradient;shrinkage;annealing

Q

PTFE Compression Molding Rough Surface and White Spots

A

PTFE white spots and roughness are direct evidence of insufficient compaction; particle size specification is a key point of raw material acceptance; holding pressure time is as important as pressure.; After confirming effectiveness, fix the parameters and practices into the work instruction to p...

Molding Process PTFE;rough surface;white spots;preforming pressure;particle size;holding pressure

Q

PESU Electrical High-Temperature Application

A

PESU is a Class H insulating transparent material, endorsed by dielectric stability at 200℃; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problem...

Molding Process PESU electricalClass H insulationdielectrichigh temperature

Q

PSU Gamma Sterilization Color Change

A

Maintaining transparency under gamma sterilization is PESU's strength, PSU parts must have color verified; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting s...

Molding Process gamma sterilizationcolortransparencymedical

Q

PSU Shrinkage and Dimensional Accuracy

A

PSU low shrinkage and low orientation are a blessing for accuracy; fluctuations mostly come from unstable process; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence; Include this case in the defect archive as a reference for tro...

Molding Process shrinkage dimensional accuracy low orientation process stability

Q

PSU Solvent Welding and Bonding

A

PSU has a complete range of joining processes; solvent welding with 5% methylene chloride is a distinctive option; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence

Molding Process solvent welding ultrasonic welding hot plate welding assembly

Q

PSU Wall Thickness Lower Limit and Flow Length Ratio

A

PSU wall thickness 1.5mm is a design red line; flow length ratio 80 determines gate layout; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence

Molding Process wall thickness lower limit flow length ratio multiple gates short shot

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