Study on the Flow Behavior in a Tubular Cavity during Water-Assisted Injection Molding

Tang Qing Kuang

doi:10.4028/www.scientific.net/AMR.154-155.359

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 154-155Study on the Flow Behavior in a Tubular Cavity...

Study on the Flow Behavior in a Tubular Cavity during Water-Assisted Injection Molding

Abstract:

A simulation model for the filling of a tubular cavity during water assisted injection molding is proposed. The polymer melt and water are assumed to be incompressible and to follow a Hele-Shaw fluid behavior. The finite element/finite difference/control volume methods are adopted for numerical simulation of the melt front, pressure at injection location variation, water thickness fraction and bulk temperature about a curved pipe, the simulation results have good agreement with the results presented in the former experiment. In comparison with the simulation result of gas-assisted injection molding, water assisted injection molding can give parts with thinner and more uniform walls and more rapid cooling.

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Periodical:

Advanced Materials Research (Volumes 154-155)

Pages:

359-362

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.154-155.359

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Online since:

October 2010

Authors:

Tang Qing Kuang

Keywords:

Flow Behaviour, Numerical Simulation, Tubular Cavity, Water-Assisted Injection Molding

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References

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