JPS6415472A - Abrasion-resistance pump part and manufacture thereof - Google Patents
Abrasion-resistance pump part and manufacture thereofInfo
- Publication number
- JPS6415472A JPS6415472A JP62168701A JP16870187A JPS6415472A JP S6415472 A JPS6415472 A JP S6415472A JP 62168701 A JP62168701 A JP 62168701A JP 16870187 A JP16870187 A JP 16870187A JP S6415472 A JPS6415472 A JP S6415472A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molten metal
- sic
- grains
- abrasion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE:To facilitate improvement of abrasion-resistance only on a surface layer by arranging ceramic grains in the vicinity of the inner wall of a mold cavity, and making pressurized casting of molten metal under a condition of the whole mold heated, so as to fill the gaps among the ceramic grains with the molten metal. CONSTITUTION:SiC grain layer 2 of about 5mm thickness is formed on the inner wall of the cavity of an inorganic self-hardening mold 4 by attaching, for example, an even mixture of 100wt. part of SiC grains and 5 part of 5% aqueous solution of water glass thereto, and drying it for solidification. The mold is then set in dies 5, 6, and hot air of about 600 deg.C is forced to blow from the center part 6a of an upper die 6 therein so that the SiC grain layer 2 is heated to about 500 deg.C. Further, molten cast iron 3 at 1400 deg.C, for instance, is poured from the top of the mold 4 followed by application of the compressed air from the top of the molten metal 3, thereby the molten cast iron is press- filled into the gaps among SiC grains. The casting is then finished by removing the mold 4 after the molten metal 3 is solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62168701A JPS6415472A (en) | 1987-07-08 | 1987-07-08 | Abrasion-resistance pump part and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62168701A JPS6415472A (en) | 1987-07-08 | 1987-07-08 | Abrasion-resistance pump part and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6415472A true JPS6415472A (en) | 1989-01-19 |
Family
ID=15872854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62168701A Pending JPS6415472A (en) | 1987-07-08 | 1987-07-08 | Abrasion-resistance pump part and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6415472A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011080414A (en) * | 2009-10-07 | 2011-04-21 | Nippon Kikai Kogyo Kk | Fire pump |
| CN103782041A (en) * | 2011-06-21 | 2014-05-07 | 诺沃皮尼奥内有限公司 | Composite compressor impeller with an erosion resistant coating and methods of manufacturing |
| EP2504583B1 (en) * | 2009-11-23 | 2018-03-07 | Nuovo Pignone S.p.A. | Mold for a centrifugal impeller, mold inserts and method for building a centrifugal impeller |
-
1987
- 1987-07-08 JP JP62168701A patent/JPS6415472A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011080414A (en) * | 2009-10-07 | 2011-04-21 | Nippon Kikai Kogyo Kk | Fire pump |
| EP2504583B1 (en) * | 2009-11-23 | 2018-03-07 | Nuovo Pignone S.p.A. | Mold for a centrifugal impeller, mold inserts and method for building a centrifugal impeller |
| CN103782041A (en) * | 2011-06-21 | 2014-05-07 | 诺沃皮尼奥内有限公司 | Composite compressor impeller with an erosion resistant coating and methods of manufacturing |
| JP2014527589A (en) * | 2011-06-21 | 2014-10-16 | ヌオーヴォ ピニォーネ ソシエタ ペル アチオニ | Composite impeller with erosion resistant coating and manufacturing method |
| US10012237B2 (en) | 2011-06-21 | 2018-07-03 | Iacoppo Giovannetti | Composite compressor impeller with an erosion resistant coating and methods of manufacturing |
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