Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

Silver Streaks Caused by Insufficient Drying of PEEK

A

PEEK silver streak investigation should follow the order of moisture first, equipment second; drying is the lowest-cost defect prevention means; moisture content verification should be incorporated into the first-article inspection process of each shift, avoiding judgment based on experience.

Material Drying PEEK；silver streak；drying；moisture；hydrolysis；150℃

Q

Delamination of PE Film Lamination

A

For PE lamination delamination, first check 'slip agent migration' — this is the most hidden and most commonly overlooked culprit; corona, cleaning, adhesive mixing, and curing are interlinked, and loss of control in any link will cause delamination.

Material Drying PE；film；lamination；delamination；slip agent；corona

Q

Static Electricity and Poor Print Adhesion of PE Film

A

Static electricity of PE film relies on 'elimination + grounding + humidification', and print adhesion relies on 'dyne value + aging time'; corona treatment decays over time, and printing as soon as possible after treatment is an iron rule of the industry.

Material Drying PE；film；static electricity；corona；dyne value；print adhesion

Q

PE '2079851475616104457 Parison Bubbles and Melt Fracture

A

For the parison, 'check moisture and wear for bubbles, check shear and temperature for roughness': the two types of problems have completely different mechanisms, but both cause weak points in the container wall and must be eliminated at the parison stage.

Material Drying PE;'2079851475616104457;bubbles;melt fracture;moisture;regrind

Q

PE '2079851475616104457 Parison Die Lines and Streaks

A

For line marks and streaks on the parison, first clean the die, then check the pressure and regrind, and finally verify the moisture; parison quality directly determines container quality, and any defect at the parison stage will be amplified after blowing.

Material Drying PE;'2079851475616104457;die lines;streaks;die;back pressure

Q

PC Weld Line Bubbles

A

For PC weld line bubbles, check venting and drying; 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

Material Drying weld line bubblesventingconfluencedrying

Q

PC Dimensional Deviation

A

PC dimensions rely on parameter locking and SPC 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

Material Drying dimensional deviationshrinkageSPCparameters

Q

PC Bubbles and Vacuum Voids

A

PC bubbles divide into gas cavities and vacuum voids, and the position distribution determines the cause; 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 troubleshooti...

Material Drying bubblesvacuum voidsdryingshrinkage cavities

Q

PC Silver Streak Multi-Cause Troubleshooting

A

PC silver streaks divide into three routes of moisture, heat and shear, and the distribution position points to the cause; 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 ...

Material Drying silver streaksmoisturesheardegradation

Q

PC Extruded Sheet Bubbles

A

The quality baseline of PC sheet extrusion is still drying; gel particle and thickness problems point to raw material purity and die temperature control accuracy; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Drying PC;extrusion;sheet;bubbles;gel particles;die

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