PROCESS FOR PRODUCING PARTS HAVING INCREASED IMPACT PERFORMANCE BY USE OF AN INJECTION MOLDING FOAMING PROCESS IN COMBINATION WITH A MOLD CORE-BACK PROCESS

A process of making a part with improved mechanical performance and improved impact performance compared to a solid part with a same weight by a disclosed foaming process. The process including introducing a glass fiber filled polymeric material to a hopper (128) of an injection molding machine, mel...

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Bibliographic Details
Main Authors Yanev, Angel Stoyanov, Van Gisbergen, Josephus Gerardus Maria, Brands, Davy Wilhelmus Anna
Format Patent
LanguageEnglish
Published 25.04.2019
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:A process of making a part with improved mechanical performance and improved impact performance compared to a solid part with a same weight by a disclosed foaming process. The process including introducing a glass fiber filled polymeric material to a hopper (128) of an injection molding machine, melting the glass fiber filled polymeric material to form a melt in a plasticizing unit (100), and pressurizing the plasticizing unit (100) of the injection molding machine with a blowing agent. The process further including dissolving the blowing agent into the melt, injecting the melt into a mold cavity (408) of a mold up to 100% of volume, and reconfiguring the mold to increase a size of the mold cavity (408) after a predetermined time after a delivery of the melt. A part made by the process and the device for making the part are also disclosed.
Bibliography:Application Number: US201716094672