Problem & Solution

Practical answers to common plastic material challenges

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Q

PVC Warpage

A

For PVC warpage check cooling; for soft material additionally check formulation migration; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems ...

Processing Machinery PVCwarpagecoolingmigration

Q

PVC Flow Mark

A

Flow marks are improved by raising both temperature and speed; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future

Processing Machinery PVCflow markfrontspeed

Q

PVC Weld Line

A

PVC weld lines are strengthened by temperature and overflow; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future

Processing Machinery PVCweld lineoverflow wellstrength

Q

PVC Burnt

A

For PVC burnt, venting and cooling are applied together; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future

Processing Machinery PVCburnttrapped gasventing

Q

PVC Sink Mark Holding Pressure

A

Holding pressure is effective for PVC sink marks but treats the symptom; structural thinning is the root cure—use both in combination; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PVC;sink mark;holding pressure;thick wall;structural design

Q

PVC Warpage Deformation

A

PVC warpage treatment relies on structural uniformity and cooling balance; holding pressure optimization is an auxiliary means; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PVC;warpage;uneven cooling;wall thickness;holding pressure

Q

PVC Back Pressure and Screw Speed

A

PVC plasticization management takes low shear as the guideline; both back pressure and speed are low, and temperature is the main adjustment means; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PVC;back pressure;screw speed;low shear;plasticization

Q

PVC Equipment Anti-Corrosion

A

PVC equipment requires bimetallic anti-corrosion configuration; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future

Processing Machinery PVCbimetallicanti-corrosionchrome plating

Q

PVC Lead Salt Replacement

A

Stabilizer switching requires systematic re-verification; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future

Processing Machinery PVCcalcium zinclead saltswitching

Q

PVC Recycling Difficulty

A

PVC recycling should be closed-loop and downgraded, with limited quality; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future

Processing Machinery PVCrecyclingclosed loopdowngrade

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