Extrusion & Post
3 Aufrufe
Internal stress cracking of products
Problembeschreibung
Stress cracking appears in products during storage and use
Ursachenanalyse
Cooling is too fast, orientation is large, wall thickness is uneven, and no annealing treatment is performed
Lösung
Mold temperature 100-120C, annealing 140-150C 2-4h
Wichtigste Erkenntnis
Annealing is the key step to eliminate internal stress
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