Submitted by AdmNC on Thu, 05/12/2022 - 13:53
Slides

STEP 1: Tube Feeding

  • The raw material are glass tubes supplied from globally renowned manufacturers like Schott and NEG
  • Clear or amber, the tubes are made of neutral borosilicate neutral glass (5.0 expansion family) with  high degree of Hydrolytic Resistance
  • Tubes are loaded by a robot on a rotative machine.

STEP 2: Forming

  • The tubes are heated, shaped and cut to give the dimensional parameters in 3 main steps:
    • Shoulders and neck forming (including 100% on-line dimensional inspection)
    • Tubes parting: heating and cutting to set vial height
    • Bottom glazing: heating, glazing and cooling

STEP 3: After forming

  • Vials are cooled down and blown with filtered air
  • 100% on-line inspections of:
    • Total length and bottom concavity by electromechanical gauge
    • Internal neck diameter by camera

STEP 4: Annealing

  • Vials are individually picked and placed on the conveyor belt of the annealing lehr with no glass to glass contact
  • Perfect annealing to release residual stresses through a monitored thermal cycle

STEP 5: Final inspection and packing

  • Final inspection under clean room conditions
  • Optional cosmetic inspection by off line camera
  • Vials are packed in shrink-wrapped PP trays or in cleanpacks and then palettized.
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