Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seizo IwaifiledCriticalSeizo Iwai
Application grantedgrantedCritical
Publication of TW339295BpublicationCriticalpatent/TW339295B/en
Molds, Cores, And Manufacturing Methods Thereof
(AREA)
Casting Devices For Molds
(AREA)
Abstract
A sort of snthetic resin sand core, mainly used for formation of the inner face of the cast item, featuring: the hollow sand core being divided into a plurality of sections corresponding to the wall thickness of the cast item and the sand core corresponding to the thick wall of the cast item bearing a better heat conductance than the sand core corresponding to the thin wall.
TW085107216A1996-06-041996-06-15Synthetic resin core, the forming mold and the manufacturing method, the casting of sand core and the forming mold
TW339295B
(en)