Filling Behavior During Jetting | Justway

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Filling Behavior During Jetting

Last updated on Jul 22, 2026

When jetting occurs, the filling front initially enters the wide cavity area in a jet-like manner before gradually spreading out.

Figure 2: Filling behavior during jetting (using short shot method)

Stage 1: Early Stage - Prominent Jetting

The melt advances rapidly in a jet-like form, creating flow mark characteristics.

Stage 2: Middle Stage - Gradual Spreading

The kinetic energy of the jet diminishes, and the melt begins to spread outwards to the sides.

Stage 3: Final Stage - Near Complete Fill

The flow front continues to advance until the cavity is nearly or completely filled.

Diagram Notes

Figure 2: Filling behavior during jetting (using short shot method) Remarks: 120 square flat panel, gate size 2mm × 1mm, Duracon M90

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