Problem & Solution

Practical answers to common plastic material challenges

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Q

PS Product Packaging Cracking

A

Transportation cracking is the superposition of internal stress and external stress; improve both packaging and process.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence

Processing Machinery PS; cracking; packaging; transportation; internal stress; cushioning

Q

HIPS Product Impact Performance Fluctuation

A

HIPS performance stability relies on dual control of process and raw material.; 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 PS;HIPS;impact;fluctuation;rubber phase;batch

Q

HIPS Sheet Surface Gel Particles

A

Gel particle control relies on plasticization and filtration; high-requirement sheets use finer screens.; 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 si...

Processing Machinery PS;HIPS;sheet;gel particle;plasticization;filtration

Q

HIPS Product Weld Line Strength

A

HIPS weld line strength is related to rubber phase distribution; design avoidance of stressed areas is the first choice.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PS;HIPS;weld line;strength;rubber phase;gate

Q

HIPS Product Warpage

A

Warpage of large HIPS parts requires systematic treatment; gate layout and cooling balance are the keys.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PS;HIPS;warpage;cooling;gate;holding pressure

Q

HIPS Product Cracking

A

HIPS cracking should check two factors: stress and media; food contact applications should especially pay attention to the influence of oils.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PS;HIPS;cracking;internal stress;medium;annealing

Q

HIPS Product Stress Whitening

A

HIPS stress whitening is related to rubber phase behavior; structural optimization is more effective than process adjustment.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PS;HIPS;stress whitening;rubber phase;structure;fillet

Q

GPPS Product Deformation from Insufficient Heat Resistance

A

GPPS heat resistance is limited; application matching is the basic principle of material selection.; 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...

Processing Machinery PS;GPPS;heat resistance;deformation;heat distortion temperature;material selection

Q

GPPS Regrind Use Discoloration

A

The discoloration and embrittlement problem of PS regrind is prominent; transparent products are recommended to use all virgin material.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PS;GPPS;regrind;discoloration;embrittlement;degradation

Q

GPPS Product Black Specks

A

Black specks point to equipment cleaning and material management; regular purging is a preventive system.; 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 s...

Processing Machinery PS;GPPS;black speck;carbonization;cleaning;contamination

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