Porous media heat transfer for injection molding

Title: Porous media heat transfer for injection molding

The cooling of injection molded plastic is targeted. Coolant flows into a porous medium disposed within an injection molding component via a porous medium inlet. The porous medium is thermally coupled to a mold cavity configured to receive injected liquid plastic. The porous medium beneficially allows for an increased rate of heat transfer from the injected liquid plastic to the coolant and provides additional structural support over a hollow cooling well. When the temperature of the injected liquid plastic falls below a solidifying temperature threshold, the molded component is ejected and collected.

Inventors:: Beer, Neil Reginald

Issue Date:: 2016-05-31

OSTI Identifier:: 1255215

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA) LLNL

Patent Number(s):: 9,352,502

Application Number:: 14/313,790

Contract Number:: AC52-07NA27344

Resource Relation:: Patent File Date: 2014 Jun 24

Research Org:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

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Works referenced in this record:

On-Chip Single-Copy Real-Time Reverse-Transcription PCR in Isolated Picoliter Droplets
journal, March 2008

Beer, N. Reginald; Wheeler, Elizabeth K.; Lee-Houghton, Lorenna
Analytical Chemistry, Vol. 80, Issue 6, p. 1854-1858
DOI: 10.1021/ac800048k

A synthesis of fluid and thermal transport models for metal foam heat exchangers
journal, July 2008

Mahjoob, Shadi; Vafai, Kambiz
International Journal of Heat and Mass Transfer, Vol. 51, Issue 15-16, p. 3701-3711
DOI: 10.1016/j.ijheatmasstransfer.2007.12.012

Rapid microfluidic thermal cycler for polymerase chain reaction nucleic acid amplification
journal, May 2008

Mahjoob, Shadi; Vafai, Kambiz; Beer, N. Reginald
International Journal of Heat and Mass Transfer, Vol. 51, Issue 9-10, p. 2109-2122
DOI: 10.1016/j.ijheatmasstransfer.2007.11.014

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