VENT STRUCTURE EJECT PIN FOR COUNTER PRESSURE CASTING

According to an embodiment of the present invention, a vent structure of an eject pin for counter pressure casting has a pin hole formed in an upper mold and an eject pin inserted into the pin hole, and penetrated and inserted into a pin guide formed in the hollow shape. The vent structure of an eje...

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Bibliographische Detailangaben
Hauptverfasser:	MOON, JUNG HWA, KIM, JEE HUN, NOH, SI JOON
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING
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Beschreibung
Zusammenfassung:	According to an embodiment of the present invention, a vent structure of an eject pin for counter pressure casting has a pin hole formed in an upper mold and an eject pin inserted into the pin hole, and penetrated and inserted into a pin guide formed in the hollow shape. The vent structure of an eject pin for counter pressure casting comprises: a pin body unit inserted into an inner circumferential surface of the pin guide; and two end portions formed in both ends along a longitudinal direction of the pin body unit, individually formed in both ends along a longitudinal direction of the pin guide, and having the shape of a polygonal transverse section. 본 발명의 일 실시예는 상형에 형성되는 핀홀 및 상기 핀홀에 삽입되고, 중공 형상으로 형성되는 핀 가이드에 관통 삽입되는 이젝트 핀을 구비하는 차압 주조용 이젝트 핀의 벤트 구조에 있어서, 상기 핀 가이드 내주면에 삽입되는 핀 몸체부를 포함하고, 상기 핀 몸체부의 길이 방향을 따른 양단에 형성되고, 각각 상기 핀 가이드의 길이 방향을 따른 양단에 각각 형성되되, 다각형의 횡단면 형상을 갖는 2개의 단부를 포함하는 차압 주조용 이젝트 핀의 벤트 구조를 제공한다.