Title:
VERTICAL SINKING TYPE VORTEX PUMP AND REPAIR METHOD FOR VERTICAL SINKING TYPE VORTEX PUMP
Document Type and Number:
Japanese Patent JP2017115754
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To secure excellent abrasion resistance of components at a liquid contact part even under a condition of feeding high-temperature molten material containing solid metal sulfide, oxide, oxidizing material and the like.SOLUTION: A vertical sinking type vortex pump 100 configured to feed fluid, includes an impeller 110 comprising a gray cast iron material containing nickel and chromium, and a casing 112 comprising the gray cast iron material and configured to store the impeller. On the whole outer peripheral surface of the impeller, a tungsten carbide is sprayed, and the whole inner peripheral surface of the casing, an alloy material for self-fluxing spray deposition classified into JIS mark MSFNi4 is sprayed.SELECTED DRAWING: Figure 3
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Inventors:
HIROSE MASAKAZU
KAKIYAMA TAKUJI
KAKIYAMA TAKUJI
Application Number:
JP2015253373A
Publication Date:
June 29, 2017
Filing Date:
December 25, 2015
Export Citation:
Assignee:
SUMITOMO METAL MINING CO
International Classes:
F04D7/06; C23C4/06; C23C4/10; F04D7/04; F04D13/00; F04D29/02
Domestic Patent References:
JP2001329987A | 2001-11-30 | |||
JPS5222111A | 1977-02-19 | |||
JP2006161132A | 2006-06-22 |
Attorney, Agent or Firm:
Akira Koike
Seiji Iga
Seiji Iga