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1. US20090165982 - Method for Predicting and Preventing Shrinkage Cavity of Iron Casting

Office
United States of America
Application Number 11912861
Application Date 26.04.2005
Publication Number 20090165982
Publication Date 02.07.2009
Publication Kind A1
IPC
B22D 46/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
46Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
Applicants KIMURA CHUZOSHO CO., LTD.
QUALICA INC.
EKK JAPAN INC.
Inventors Kanno Toshitake
Kang Ilgoo
Murakami Toshihiko
Kubo Kimio
Agents THOMPSON COBURN LLP
Title
(EN) Method for Predicting and Preventing Shrinkage Cavity of Iron Casting
Abstract
(EN)

A method for predicting and preventing occurrence of shrinkage cavity in an iron casting of any of various shapes or in each part of an iron casting precisely prior to casting. The shape of an iron casting is approximated entirely or partially to a rectangular parallelepiped or a cube, to the sum of the two long sides is divided by the short side to determine a shape coefficient, and occurrence of shrinkage cavity is predicted by determining whether the value exceeds a predetermined value (determination coefficient) or not.