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
Human renal disease marker substance
Food-grade flour from dry fractionated corn germ and collet composition and method for producing same
Digital display devices and digital projectors with expanded color gamut
Liquid crystal display having wide viewing angle
Modulation of HSP47 expression
Method of using nutritional compounds dihydroquercetin (taxifolin) and arabinogalactan in combination with dihydroquercetin (taxifolin) to reduce and control cardiometabolic risk factors assoc
Method and system for remotely testing a wireless device
  Randomly Featured Patents
Production of high structure soft carbon black
Method of mandibular distraction osteogenesis
Seal load inspection apparatus
System for trading illiquid assets by liquidity provisioning and bid value swap (financial conductivity)
Optimally grounded small loop antenna
Adjustable-stroke crank apparatus
Transfer printing film
Collision detecting device and method
Diuretic compositions and methods of producing diuresis
Plasma display panel and driving method thereof