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Title: Porous media heat transfer for injection molding

Patent ·
OSTI ID:1255215

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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
9,352,502
Application Number:
14/313,790
OSTI ID:
1255215
Resource Relation:
Patent File Date: 2014 Jun 24
Country of Publication:
United States
Language:
English

References (23)

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Core cooling apparatus for an injection molding machine patent June 1990
Injection mold apparatus with improved heating and cooling system patent October 1991
Enhanced thermal transfer injection molding apparatus patent June 1995
Method for tempering a moulding tool patent October 1995
Method of tempering a molding tool patent May 1996
Construction and method of making heat-exchanging cast metal forming tool patent November 1998
Process including heating and cooling for production of an injection-moulded body patent November 1999
Tooling made by solid free form fabrication techniques having enhanced thermal properties patent September 2000
Thermal cycler for PCR patent November 2006
Microarray detector and methods patent April 2008
Multiwell plate patent August 2008
Cross-over nozzle system for stack molds patent March 2012
Thermal reaction device and method for using the same patent-application November 2005
Sorting, amplification, detection, and identification of nucleic acid subsequences in a complex mixture patent-application July 2008
Portable Rapid Microfluidic Thermal Cycler for Extremely Fast Nucleic Acid Amplification patent-application September 2009
Rapid Microfluidic Thermal Cycler for Nucleic Acid Amplification patent-application September 2009

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