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Method and Apparatus for Preform Relaxation and Flow Control in Liquid Composite Molding (LCM) Processes Using a Vacuum Chamber and Port-Based Injection
Detailed Technology Description
Liquid Composite Molding (LCM) processes are used toconstruct complex composite parts by combining a fabric mat made of highstrength materials such as glass or carbon and a polymer matrix such as vinylester or epoxy. This invention uses theVacuum Induced Preform Relaxation (VIPR) process which combines the use of anexternal rigid vacuum chamber with multiple tool-side injection ports. The invention is an improvement over existingprocesses such as Vacuum Assisted Resin Transfer Molding (VTARM) and Seeman’sComposite Resin Infusion Process (SCRIMP).
Countries
United States
Application No.
Patent Pending
Country/Region
USA
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