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Term |
Definition |
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PA
|
Polyamide (nylon)
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PA
|
Polyamide (a sernicrystalline thermoplastic)
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PAA
|
Poly(acrylic acid)
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PADC
|
Poly(allyl diglycol carbonate)
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PAE
|
Poly(arylether)
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PAEK
|
Poly(aryletherketone)
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PAI
|
Poly(amide-imide)
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PAI
|
Polyamide-imide
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PAK
|
Poly(ester alkyd)
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PAN
|
Poly(acrylonitrile)
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PAN
|
Polyacrylonitrile
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Paneling
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Distortion of a container occuring during aging or storage, caused by the development of a reduced pressure inside the container.
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PARA
|
Poly(aryl amide)
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Parallels
|
(1) Spacers placed between the steam plate and press platen to prevent the middle section of the mould from bending under pressure. (2) Pressure pads or spacers between the steam plates of a mould to control height when closed sand to prevent crushing the parts of the mould when the land area is inadequate.
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Parison
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The hollow plastic tube from which a container, toy etc, is blow moulded.
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Parison Swell
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In blow moulding the ratio of the cross-sectional area of the parison to the ross-sectional area of the die opening.
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Parting Agent
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A lubricant, often wax used to coat a mould cavity to prevent the moulded piece from sticking to it, and thus to facilitate its removal from the mould. Also called Release Agent.
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Parting Line
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Mark on a moulding or casting where halves of mould met in closing.
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Partitioned Mould Cooling
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A large diameter hole drilled into the mould (usually the core) and partitioned by a metal plate extending to near the bottom end of the channel. Water is introduced near the top of one side of the partition and removed on the other side.
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PASU
|
Poly(arylsulfone)
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