Pressure build‐up during the packing stage of injection molding

Tai‐Shung ‐S Chung

doi:10.1002/pen.760251208

Pressure build‐up during the packing stage of injection molding

Tai‐Shung ‐S Chung^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

A thorough study of an isothermal fluid motion within the mold cavity during the packing stage is presented. The fluid is considered Newtonian, and its compressible behavior is assumed to obey the Spencer‐Gilmore equation of state. Mathematical results indicate that the pressure built up during the packing stage is strongly dependent on the melt viscosity and the boundary of the cavity. The effects of pressure gradient and distribution, during this stage, on the shrinkage of the final products are also discussed.

Original language	English (US)
Pages (from-to)	772-777
Number of pages	6
Journal	Polymer Engineering & Science
Volume	25
Issue number	12
DOIs	https://doi.org/10.1002/pen.760251208
State	Published - Aug 1985
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Polymers and Plastics
Materials Chemistry

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10.1002/pen.760251208

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abstract = "A thorough study of an isothermal fluid motion within the mold cavity during the packing stage is presented. The fluid is considered Newtonian, and its compressible behavior is assumed to obey the Spencer‐Gilmore equation of state. Mathematical results indicate that the pressure built up during the packing stage is strongly dependent on the melt viscosity and the boundary of the cavity. The effects of pressure gradient and distribution, during this stage, on the shrinkage of the final products are also discussed.",

author = "Chung, {Tai‐Shung ‐S}",

year = "1985",

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AU - Chung, Tai‐Shung ‐S

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AB - A thorough study of an isothermal fluid motion within the mold cavity during the packing stage is presented. The fluid is considered Newtonian, and its compressible behavior is assumed to obey the Spencer‐Gilmore equation of state. Mathematical results indicate that the pressure built up during the packing stage is strongly dependent on the melt viscosity and the boundary of the cavity. The effects of pressure gradient and distribution, during this stage, on the shrinkage of the final products are also discussed.

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JO - Polymer Engineering & Science

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Pressure build‐up during the packing stage of injection molding

Abstract

ASJC Scopus subject areas

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