Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nobuyuki Kawai0
Date of Patent
March 15, 2011
0Patent Application Number
117938010
Date Filed
December 15, 2005
0Patent Primary Examiner
Patent abstract
A demolding method and equipment to reduce dents produced in an as-cast product. The method includes the steps of placing a tight-flask cope on a tight-flask drag for mating, such that a gate for the tight-flask cope and drag faces upward; reversing the tight-flask cope and drag after they are poured with molten metal such that the gate faces downward; and drawing a cope, a drag, and an as-cast product from the reversed tight-flask cope and drag, with the gate facing downward, from above to below.
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