塑料成型
4
I.Injection molding faults
1. Streaks
1.1 Moisture streaks/splay marks1.2 Burning streaks/silver streaks1.3 Dark streaks due to indrawn air1.3 Color streaks
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2. Peeling/delamination3. Weld lines
4.Air entrapments/bubble formation5. Sink marks6. Voids
7. Glossy spots or differences in gloss/mat spots8. Microcracks, crazing, stress whitening9.Diesel effect
10. Demolding problems
11. Push marks (“tiger stripes/tiger lines”)12. Record effect13. Short shot
14. Flash formation15. Jetting16. Cold slug17. Warpage
II.Overview: Control of injection molding faults by changing the processing parameters
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