Injection Blow Injection Blow Molding (IBM)

DIMENSIONS "h", "s", "t" and "e"

Recommended Actions

"H"- height • Increase by moving parison mold and/or blow mold out-ward (add shim). • Reduce by moving parison mold and/or blow mold inward (remove shim). "S"- neck finish • Increase by moving parison mold and/or blow mold out-ward (add shim). • Reduce by moving parison mold and/or blow mold inward (remove shim). "T"- average of "h" and "s" • Reduce parison mold's neck temperature • Verify temperature control unit operation. To raise "t" • Increase the injection time • Increase the hold time. • Reduce the blow mold and/or parison mold neck temperature. • Increase the internal core rod cooling. To lower "t" • Increase the parison mold and/or blow mold neck temperature. • Reduce core rod cooling. • Plumb hot water to blow mold neck. "E" (taken across major and minor axes) • Reference to "T dimension
  • "H"- height
  • Increase by moving parison mold and/or blow mold out-ward (add shim).
  • Reduce by moving parison mold and/or blow mold inward (remove shim).
  • "S"- neck finish
  • Increase by moving parison mold and/or blow mold out-ward (add shim).
  • Reduce by moving parison mold and/or blow mold inward (remove shim).
  • "T"- average of "h" and "s"
  • Reduce parison mold's neck temperature
  • Verify temperature control unit operation.
  • To raise "t"
  • Increase the injection time
  • Increase the hold time.
  • Reduce the blow mold and/or parison mold neck temperature.
  • Increase the internal core rod cooling.
  • To lower "t"
  • Increase the parison mold and/or blow mold neck temperature.
  • Reduce core rod cooling.
  • Plumb hot water to blow mold neck.
  • "E" (taken across major and minor axes)
  • Reference to "T dimension

Related Knowledge

Source

Imported from Molding Defects All Platforms spreadsheet

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