Method for making non-magnetic counterweight including a mixing step, a cold-pressing step, a vacuum sintering heat treatment step, and a high-pressure compaction step

Method for making non-magnetic counterweight including a mixing step, a cold-pressing step, a vacuum sintering heat treatment step, and a high-pressure compaction step

The invention provides a method for making non-magnetic counterweight. Aluminum powder is selected as the base material and tungsten powder with high specific gravity is used as the filling material. They are uniformly mixed by a mixer according to a certain ratio, and then the mixture is cold-press...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GEE, CHUEN-MING, QIU, ZHENG-YAO, CHUANG, MINGIH
Format: Patent
Sprache:chi ; eng
Schlagworte:
CASTING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:The invention provides a method for making non-magnetic counterweight. Aluminum powder is selected as the base material and tungsten powder with high specific gravity is used as the filling material. They are uniformly mixed by a mixer according to a certain ratio, and then the mixture is cold-pressed to make green embryos, which are then subjected to vacuum sintering heat treatment to make a sintered body. Finally through a high-pressure compaction process, non-magnetic counterweights of different densities are obtained.