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Glass Container Neck Narrow Press & Blow Process and its Mould Equipment

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Core prompt :N.N.P.B (Narrow Neck Press Blow)narrow neck press blow is a process which produces a light weight container by press
N.N.P.B (Narrow Neck Press & Blow)
narrow neck press & blow is a process which produces a light weight container by pressing the glass in the blank and neck ring to form a parison, normally the finish is 35mm or less in diameter.

Neck Narrow Press & Blow Process and Blow Mould Equipment

1. Blank
The blank is the primary piece used to form the parison as the plunger presses the glass. It is designed to provide the correct amount of glass thickness throughout the finished container.

2. Baffle
The baffle seals the end of the blank forming the complete blank cavity.

3. Plunger
The plunger travels in an upward motion pressing the glass in the blank and neck ring. The action forms the parison and the finish. The plunger is cooled internally by air flowing through the cooling tube.

4. Neck Ring
The neck ring unit consists of two halves and a guide ring. The guide ring is an internal part and normally forms the top of the sealing surface of the finish. The neck ring forms the finish and holds the parison during transfer from the blank to the mould.

5. Mould
The mould forms the finished container.

6. Bottom Plate
The bottom plate is used in conjunction with the mould to form the finished container. The bottom plate forms the bottom of the container.

7. Blow Head
The blow head sits on top of the mould. It is used to introduce final blow air into the parison blowing it to the shape of the mould.
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