Sintered bearing for an EGR valve and manufacturing method thereof

Provided is a sintered bearing for an EGR valve, including raw material powder including 9% by weight to 12% by weight of aluminum, 0.1% by weight to 0.6% by weight of phosphorus, 3% by weight to 10% by weight of graphite, and the balance including copper as a main component, and inevitable impuriti...

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Bibliographische Detailangaben
Hauptverfasser: Gotou, Takahiro, Nagata, Hiroharu, Ito, Yoshinori, Seto, Tomoyuki
Format: Patent
Sprache:eng
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Zusammenfassung:Provided is a sintered bearing for an EGR valve, including raw material powder including 9% by weight to 12% by weight of aluminum, 0.1% by weight to 0.6% by weight of phosphorus, 3% by weight to 10% by weight of graphite, and the balance including copper as a main component, and inevitable impurities. The sintered bearing has a structure of a sintered aluminum-copper alloy. The sintered bearing further includes free graphite distributed in pores formed so as to be dispersed.