Melt homogeneity in injection molding: Application of a ring-bar device

A thermocouple ring‐bar device located between the nozzle and screw‐tip was used to study the thermal homogeneity of a shot formed during injection molding. Axial and radial melt temperature profiles thus observed under various processing conditions illustrated the importance of screw channel volume...

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Veröffentlicht in:Polymer engineering and science 1989-02, Vol.29 (3), p.202-208
Hauptverfasser: Peischl, G. C., Bruker, I.
Format: Artikel
Sprache:eng
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Zusammenfassung:A thermocouple ring‐bar device located between the nozzle and screw‐tip was used to study the thermal homogeneity of a shot formed during injection molding. Axial and radial melt temperature profiles thus observed under various processing conditions illustrated the importance of screw channel volume‐to‐short‐size ratio on melt homogeneity, Several methods of improving melt quality, as measured by this device, are demonstrated.
ISSN:0032-3888
1548-2634
DOI:10.1002/pen.760290308