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Title: Method and apparatus for the control of injection molding
Authors: Gao, Furong
Zhao, Chunhua
Keywords: Injection molding
Velocity control
Nozzle pressure
Fuzzy inference system
Issue Date: 30-Oct-2001
Citation: US Patent 6,309,571. Washington, DC: US Patent and Trademark Office, 2001.
Abstract: This invention relates to a method and apparatus for the control of injection molding and, in particular, for determining a suitable time for transfer from injection velocity control to packing pressure control. The invention uses a derivative of , preferably the nozzle pressure, and inputs this to a fuzzy inference system. The fuzzy inference system uses said rules and knowledge to provide a suitable transfer time as an output. It is preferred that the sample pressure is filtered prior to calculation of the derivative.
Rights: This patent is also available at HKUST Technology Transfer Center Patent Search at <>
Appears in Collections:CBME Patents

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