THERMALLY SPRAYED FILM WITH SLURRY-EROSION RESISTANCE, AND MACHINE MEMBER FOR FLUID HAVING THERMALLY SPRAYED FILM

Japanese Patent JP2004010974

A

To provide a thermally sprayed film superior in slurry-erosion resistance having a suitable area rate of hard particles, which has been determined on the basis of a relation between the area rate and a wear rate of the film.

The thermally sprayed film with slurry-erosion resistance 2a to 2c including a ceramic and a metal, which has been bonded to the surface of a substrate 1 with thermal spraying, has the hard particles of the ceramic on the surface of the film at the area rate of 25-50%. An impeller provided with a hub and several blades circumferentially attached around the hub at a distance, has the thermally sprayed film with the slurry-erosion resistance deposited on at least one part of the surface of the impeller, wherein the film has the hard particles of the ceramic on the surface at the area rate of 25-50%.

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SUGIYAMA KENICHI
KAWAMURA SATOSHI
MIYASAKA MATSUSUKE
NAKAHAMA SHUHEI
NAGASAKA HIROSHI

JP2002166647A

January 15, 2004

June 07, 2002

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EBARA CORP

F04D29/02; C23C4/04; F04D29/22; F04D29/42; (IPC1-7): C23C4/04; F04D29/02; F04D29/22; F04D29/42

Kazuo Shamoto
Akio Chiba
Shigeru Ito
Osamu Hoshino
Fujihiro Kanda
Hiroyuki Uchida
Toru Miyamae

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