Title:
【発明の名称】Al合金製回転ギヤポンプとその製造方法
Document Type and Number:
Japanese Patent JPH07101035
Kind Code:
B2
Abstract:
A drive gear (2) and a driven gear (3) for use in a rotary gear pump exhibiting good sliding characteristics against a pump case (4) made of light metals such as aluminum alloys. One or both parts are formed from an aluminum alloy material obtained by subjecting an aluminum alloy powder which has been rapidly solidified at a cooling rate of 100 DEG C/sec or more, or aluminum alloy powder having a particle size of 350 mu m or less, to powder compaction followed by hot extrusion and optionally hot forging, or alternatively to powder forging.
Inventors:
Akechi Kiyoaki
Application Number:
JP32133288A
Publication Date:
November 01, 1995
Filing Date:
December 19, 1988
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
F04C2/08; F04C2/10; (IPC1-7): F04C2/10
Domestic Patent References:
| JP60128983A | ||||
| JP62124284U | ||||
| JP60147785U |
Attorney, Agent or Firm:
Kenichiro Sano (2 outside)