Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Optimization of overmolding method for three-dimensional hollow molded article










Image Number 102 for United States Patent #5942169.

A method of over-molding used to produce a three-dimensional hollow molded article employs a core made of resin having a hollow portion. The core is placed in a cavity of a mold. Molten resin is injected into a space formed by the core and a cavity wall of the mold through a resin injection portion. In this way at least part of the outer surface of the core is covered with resin. Deformation of the core due to the pressure of the resin during injection is prevented in one of a number of different ways. The over-molding method is optimized by calculating a temperature distribution and a pressure distribution of the molten resin in the step of injecting the molten resin into the space by numerical analysis. The displacement distribution and for the stress distribution of the core caused by pressure applied to the core by flow of the molten resin is calculated by a numerical analysis on the basis of the calculated temperature distribution and pressure distribution. The form of the hollow molded article, the form of the core, the form of the mold, and the molding conditions can thereby be optimized on the basis of at least one of the calculated displacement distribution and the stress distribution so as to minimize deformation of the core.








 
 
  Recently Added Patents
Stable aqueous composite compositions
Mobile browser context switching
Method for switching between virtualized and non-virtualized system operation
Externally gapped line arrester
Apparatus and method for sterilizing vessel with electron beam
Process for preparing soybean curd using micronized solution of soybean curd
Modular storage system
  Randomly Featured Patents
Hydraulic cylinder assemblies
Tape for slide fasteners
Push button and electronic device having same
Portable electric breast pump
Circuit arrangement with semiconductor elements arranged in chips
In-line dual element fluid flow probe
Wireless control device
Method for driving a power semiconductor
System and method for increasing polymer/nanopore interactions
Internal combustion engine ignition system