JPS57191496A - Impeller for use in fan and manufacture thereof - Google Patents
Impeller for use in fan and manufacture thereofInfo
- Publication number
- JPS57191496A JPS57191496A JP7577781A JP7577781A JPS57191496A JP S57191496 A JPS57191496 A JP S57191496A JP 7577781 A JP7577781 A JP 7577781A JP 7577781 A JP7577781 A JP 7577781A JP S57191496 A JPS57191496 A JP S57191496A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- bag
- impeller
- inner space
- manufacture
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/78—Making other particular articles propeller blades; turbine blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE:To manufacture an impeller, light, economical and having a high performance, by forming a blade having a required shape by way of bulging by expanding a prefabricated bag-like plate from the inside thereof by use of a pressurizing medium. CONSTITUTION:The inner space of a prefabricated bag-like plate 7 is pressurized beforehand (for instance, to 4-5atm) by injecting nitrogen gas into the inner space of the plate 7 from a gas injection port 10, so that the bag-like plate 7 can be protected against buckling when it is fixed between an upper and a lower molds 5 and 6. When the upper mold 5 is lowered to a required position by means of a press head (not shown) while heating the bag-like plate 7 by supplying current to embedded heaters 11, the upper mold 5 is lowered together with an upper and a lower retainers 8, 9 to a position where it is held in abutment with the lower mold 6. In this state, a bulging pressure (for instance, 40atm) is imparted to the inner space of the bag-like plate 7 by raising the pressure of nitrogen gas so as to shape the surfaces of the bag-like plate 7 into the configuration of molding surfaces 5a, 6a of the upper and the lower molds 5, 6. By thus completing the bulging operation, it is enabled to manufacture an impeller, light, economical and having a high performance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7577781A JPS57191496A (en) | 1981-05-21 | 1981-05-21 | Impeller for use in fan and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7577781A JPS57191496A (en) | 1981-05-21 | 1981-05-21 | Impeller for use in fan and manufacture thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57191496A true JPS57191496A (en) | 1982-11-25 |
Family
ID=13585978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7577781A Pending JPS57191496A (en) | 1981-05-21 | 1981-05-21 | Impeller for use in fan and manufacture thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57191496A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63297798A (en) * | 1987-05-21 | 1988-12-05 | ハドソン・プロダクツ・コーポレーシヨン | Fan blade for axial fan and molding method thereof |
WO2010084941A1 (en) * | 2009-01-22 | 2010-07-29 | 株式会社Ihi | Method of manufacturing member for reinforcing front edge of fan blade |
EP2368652A1 (en) * | 2010-03-01 | 2011-09-28 | Vari-Form Inc. | Hydroformed turbine blade and method of manufacturing thereof |
WO2014126139A1 (en) * | 2013-02-13 | 2014-08-21 | 株式会社Ihi | Method and device for manufacturing fan blade |
CN105112632A (en) * | 2015-09-10 | 2015-12-02 | 苏州明和行新材料科技有限公司 | Forming method and device for hollow blade |
RU2608770C1 (en) * | 2013-02-13 | 2017-01-24 | АйЭйчАй КОРПОРЕЙШН | Method of fan blade making and fan blade production device |
-
1981
- 1981-05-21 JP JP7577781A patent/JPS57191496A/en active Pending
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63297798A (en) * | 1987-05-21 | 1988-12-05 | ハドソン・プロダクツ・コーポレーシヨン | Fan blade for axial fan and molding method thereof |
JPH0511237B2 (en) * | 1987-05-21 | 1993-02-12 | Hudson Products Corp | |
WO2010084941A1 (en) * | 2009-01-22 | 2010-07-29 | 株式会社Ihi | Method of manufacturing member for reinforcing front edge of fan blade |
US8814528B2 (en) | 2009-01-22 | 2014-08-26 | Ihi Corporation | Production method of leading edge reinforcement of fan blade |
JP5163756B2 (en) * | 2009-01-22 | 2013-03-13 | 株式会社Ihi | Manufacturing method of fan blade leading edge reinforcing member |
US8814523B2 (en) | 2010-03-01 | 2014-08-26 | Vari-Form, Inc. | Hydroformed turbine blade |
EP2368652A1 (en) * | 2010-03-01 | 2011-09-28 | Vari-Form Inc. | Hydroformed turbine blade and method of manufacturing thereof |
WO2014126139A1 (en) * | 2013-02-13 | 2014-08-21 | 株式会社Ihi | Method and device for manufacturing fan blade |
CN105121862A (en) * | 2013-02-13 | 2015-12-02 | 株式会社Ihi | Method and device for manufacturing fan blade |
JP5901833B2 (en) * | 2013-02-13 | 2016-04-13 | 株式会社Ihi | Fan blade manufacturing method and manufacturing apparatus |
RU2608770C1 (en) * | 2013-02-13 | 2017-01-24 | АйЭйчАй КОРПОРЕЙШН | Method of fan blade making and fan blade production device |
JPWO2014126139A1 (en) * | 2013-02-13 | 2017-02-02 | 株式会社Ihi | Fan blade manufacturing method and manufacturing apparatus |
RU2609800C1 (en) * | 2013-02-13 | 2017-02-06 | АйЭйчАй КОРПОРЕЙШН | Method of fan blade making and fan blade production device |
US10265908B2 (en) | 2013-02-13 | 2019-04-23 | Ihi Corporation | Method of manufacturing fan blade and apparatus for manufacturing the same fan blade |
CN105112632A (en) * | 2015-09-10 | 2015-12-02 | 苏州明和行新材料科技有限公司 | Forming method and device for hollow blade |
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