CN108500213A - The method for manufacturing the toroidal cores of the nozzle ring for casting axial flow turbo-machine - Google Patents
The method for manufacturing the toroidal cores of the nozzle ring for casting axial flow turbo-machine Download PDFInfo
- Publication number
- CN108500213A CN108500213A CN201810164217.4A CN201810164217A CN108500213A CN 108500213 A CN108500213 A CN 108500213A CN 201810164217 A CN201810164217 A CN 201810164217A CN 108500213 A CN108500213 A CN 108500213A
- Authority
- CN
- China
- Prior art keywords
- ring
- nozzle ring
- manufactured
- attachment
- guide vane
- 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
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/101—Permanent cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/103—Multipart cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D47/00—Casting plants
- B22D47/02—Casting plants for both moulding and casting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
- F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
- F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
- F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/21—Manufacture essentially without removing material by casting
- F05D2230/211—Manufacture essentially without removing material by casting by precision casting, e.g. microfusing or investment casting
Abstract
A method of the toroidal cores of nozzle ring of the manufacture for casting axial flow turbo-machine, wherein and the corresponding element of the guide vane of nozzle ring to be manufactured be mounted on and the corresponding outer bearing elements of the outer bezel ring, of nozzle ring to be manufactured and inner bearing elements corresponding with the interior bezel ring, of nozzle ring to be manufactured on, including outer bearing elements, the device of the element of inner bearing elements and installation on supporting member is removed, hereafter it is hardened by the remaining green body that ceramic material is constituted for preparing toroidal cores, wherein, before by described device and ceramic material double teeming, the attachment for limiting the knuckle radius of the restriction between the guide vane of nozzle ring to be manufactured and at least one bezel ring, is mounted on the element corresponding to the guide vane of nozzle ring to be manufactured, at least one bezel ring, is preferably two bezel ring,s.
Description
Technical field
A kind of method of the toroidal cores of nozzle ring the present invention relates to manufacture for casting axial flow turbo-machine.The present invention is also
It is related to the method using this toroidal cores casting nozzle ring.
Background technology
It is known that the basic structure design of the nozzle ring of axial flow turbo-machine from 20 2,014 002 981 U1 of DE.
The nozzle ring of axial flow turbo-machine has outer bezel ring, interior bezel ring, and the guide vane extended between outer bezel ring, and interior bezel ring,.
Usually not any knuckle radius of the guide vane of nozzle ring perpendicular through enter interior bezel ring, and outer bezel ring,.At this
In kind of nozzle ring, it is noted that be that crackle is formed in the region of interior ring and outer shroud, this detracts the service life of nozzle ring.For
Increase the service life of nozzle ring, it is desirable to limit is formed in the region that guide vane is transitioned into interior bezel ring, and outer bezel ring,
Fixed knuckle radius.
Casting process is used as a part for mold for manufacturing nozzle ring, core.Typically serving as toroidal cores herein is
Core, i.e. integral core.This toroidal cores can be used for relative cost and effectively manufacture nozzle ring, but be transitioned into nozzle ring in guide vane
Bezel ring, in region in cannot form knuckle radius.
In order to provide the nozzle ring with knuckle radius in the transitional region between the guide vane and bezel ring, of nozzle ring,
Segmented core technology must be transformed into from toroidal cores technology, that is, use the multipart core of segmentation as casting nozzle ring
A part for mold.However, this segmented core manufacture is complicated, this may finally make the cost of manufacture nozzle ring not only double.Cause
This, is not preferred using grading ring.
In casting nozzle ring in the presence of the demand using toroidal cores, wherein a kind of present invention presented herein system especially set out
The method for making the toroidal cores for casting nozzle ring allows in the transitional region between the guide vane and bezel ring, of nozzle ring
Form knuckle radius.
Invention content
It sets out from the discussion above, the nozzle ring the object of the present invention is to provide a kind of manufacture for casting axial flow turbo-machine
Toroidal cores novel method.
The toroidal cores of nozzle ring of the purpose by manufacture according to claim 1 for casting axial flow turbo-machine
Method realize.
According to the present invention, before by device and ceramic material double teeming, limit nozzle ring to be manufactured guide vane and
At least one bezel ring,（It is preferred that two bezel ring,s）Between restriction knuckle radius attachment be mounted on correspond to spray to be manufactured
On the element of the guide vane of mouth ring.
It can be used for providing the toroidal cores of the nozzle ring for casting axial flow turbo-machine according to the method for the present invention, allow
Knuckle radius is formed between the guide vane of nozzle ring and the bezel ring, of nozzle ring.This is can to use toroidal cores cost for the first time
Effectively manufacture the nozzle ring with knuckle radius in the transitional region between guide vane and bezel ring,.
In further development, attachment is made of flexible material, so that when by device and ceramic material double teeming
Attachment is close to supporting member.This attachment is particularly preferred.It is corresponding attached when by device and ceramic material double teeming
To be manufactured guide vane of those of the supporting member of facing device of fitting partly and with nozzle ring to be manufactured is corresponding
Element is close to supporting member.Therefore, knuckle radius can be endowed the design of high precision.
Claim 9 defines according to the present invention carrys out casting nozzle ring using this toroidal cores manufactured in the above described manner
Method.
Description of the drawings
The preferred further development of the present invention can be obtained from dependent claims and in being described below.It will be based on attached drawing
Exemplary embodiment of the present invention is described in more detail, but not limited to this.It is illustrated in：
Fig. 1 is the perspective view of the attachment for manufacturing ring mould；
Fig. 2 be for manufacture ring mould and corresponding to nozzle ring to be manufactured guide vane element and be mounted thereon
Two attachments perspective view.
Specific implementation mode
A kind of method of the toroidal cores of nozzle ring the present invention relates to manufacture for casting axial flow turbo-machine.
The expert paid close attention to herein is familiar with the basic process of the nozzle ring using toroidal cores casting axial flow turbo-machine.In order to complete
For the sake of whole, at this time it should be noted that manufacturing toroidal cores first, and it is then used as a part for the mold of casting nozzle ring.
It is used for casting nozzle ring in manufacture（Extend including interior bezel ring, outer bezel ring, and between interior bezel ring, and outer bezel ring,
Guide vane）This toroidal cores during, element corresponding with the guide vane of nozzle ring to be manufactured be mounted on and wait for
The corresponding outer bearing elements of outer bezel ring, of the nozzle ring of manufacture and interior bearing corresponding with the interior bezel ring, of nozzle ring to be manufactured
On element.For this purpose, supporting member has several slit-like recess portions, correspond to the element of guide vane along its longitudinal extension
It is inserted into the recess portion.
This device including supporting member and installation element on supporting member then with ceramic fluent material double teeming.
After ceramic material partially hardened, supporting member and installation on supporting member with nozzle to be manufactured
The corresponding element of guide vane of ring is removed from double teeming device, wherein the remaining green body quilt being made of partially dried ceramic material
Hardening（Especially fire in a furnace）For preparing toroidal cores.
In order to mount and dismount the guide vane with the nozzle ring to be manufactured on the bezel ring, of nozzle ring to be manufactured
Corresponding element, in the transition region between the guide vane and bezel ring, of nozzle ring to be manufactured in the prior art so far
Knuckle radius cannot be formed in domain.
What present present invention presented herein proposed is before by device and ceramic workpiece double teeming, in nozzle to be manufactured
The attachment that knuckle radius is limited between the guide vane and bezel ring, of ring is mounted on for manufacturing corresponding to manufactured nozzle ring
Guide vane toroidal cores device element on.By the one of element corresponding with the guide vane of nozzle ring to be manufactured
After end has been threadedly coupled in the recess portion of a supporting member, the corresponding of another supporting member is then inserted into the element
Recess portion in before, then preferably two attachment components are threadedly coupled in respective element.
When corresponding two attachments are threadingly attached to each member corresponding with the guide vane of nozzle ring to be manufactured
When on part, the first attachment is used to provide the knuckle radius of restriction, and the second attachment between guide vane and interior bezel ring,
Knuckle radius for providing restriction between guide vane and outer bezel ring,.
When only there are one each elements that attachment is threadingly attached to the guide vane corresponding to nozzle ring to be manufactured
When upper, the latter is used to provide the knuckle radius of restriction between guide vane and interior bezel ring, or in guide vane and outside
The knuckle radius of restriction is provided between bezel ring,.
Corresponding two attachments are preferably threadedly coupled to member corresponding with the guide vane of nozzle ring to be manufactured
On part, to provide the knuckle radius of restriction between the guide vane of two bezel ring,s.
After element corresponding with the guide vane of nozzle ring to be manufactured is mounted on two supporting members, attachment
Part is then moved towards corresponding supporting member, and especially the first attachment is towards outer bearing elements and the second attachment direction
Inner bearing elements.Attachment is determined away from the profile of supporting member between the guide vane and bezel ring, of nozzle ring to be manufactured
Knuckle radius.
Fig. 1 itself shows this attachment 10.Attachment 10 includes groove 11, and groove 11 can be used for being threadedly coupled
Onto element corresponding with the guide vane of nozzle ring to be manufactured.
Fig. 2 shows element 12 corresponding with the guide vane of nozzle ring to be manufactured and it is threadingly attached to element 12
On two attachments 10 perspective view.
There are two peripheral profile 13,14, the profiles of the respective attachment part 10 wherein on Fig. 1 and Fig. 2 for each tool of attachment 10
13 define the knuckle radius between the guide vane of nozzle ring to be manufactured and corresponding bezel ring, and wherein opposite profile 14
Corresponding supporting member is abutted when manufacturing toroidal cores.
Attachment 10 is fabricated from a flexible material.The material of attachment 10 is such softness so that including and waiting making in double teeming
The corresponding supporting member of bezel ring, for the nozzle ring made, corresponding to nozzle ring to be manufactured guide vane element and attachment
Attachment 10 is close to supporting member when 10 device.
Attachment 10 can be made of the material of rubber material or rubber like herein, especially silicone material or some
Other elastic rubbers.
In the device of the element 12 and attachment 10 of the guide vane including supporting member, corresponding to nozzle ring to be manufactured
With after liquid ceramic material double teeming, be not only supporting member and installation on supporting member and correspond to spray to be manufactured
The element 12 of the guide vane of mouth ring is removed from the ceramic material for constituting the partially dried of green body and hardening, and is also had by flexibility
The attachment 10 that material is constituted.Then green body is fired in a furnace for dry and hardening purpose, to be then used as casting
Make a part for the mold of nozzle ring.In this case, toroidal cores made according to the present invention are then to be manufactured with composition
The metal material double teeming of nozzle ring.
Supporting member corresponding with the bezel ring, of nozzle ring and installation on supporting member and with nozzle ring to be manufactured
The corresponding element of guide vane be preferably made of metal material.Attachment is made of flexible nonmetal material.
The present invention can be used for it is cost-effective and easily especially with toroidal cores technology manufacture nozzle ring guiding
Nozzle ring with knuckle radius between blade and bezel ring,.
Reference listing
10 attachments
11 recess portions
12 elements
13 profiles
14 profiles
Claims (9)
1. the method for the toroidal cores of nozzle ring of a kind of manufacture for casting axial flow turbo-machine, wherein with nozzle ring to be manufactured
The corresponding element of guide vane be mounted on outer bearing elements corresponding with the outer bezel ring, of nozzle ring to be manufactured and with wait making
On the corresponding inner bearing elements of interior bezel ring, for the nozzle ring made,
Be removed including the device of outer bearing elements, inner bearing elements and installation element on supporting member, hereafter by
The remaining green body that ceramic material is constituted is hardened to prepare toroidal cores, it is characterised in that：
Before by described device and ceramic material double teeming, the guide vane of nozzle ring to be manufactured and at least one bezel ring, are limited
Between restriction knuckle radius attachment be mounted on corresponding to nozzle ring to be manufactured guide vane element on, it is described
At least one bezel ring, is preferably two bezel ring,s.
2. according to the method described in claim 1, it is characterized in that, the attachment is made of flexible material.
3. method according to claim 1 or 2, which is characterized in that the material of the attachment it is so soft so that
The attachment is close to supporting member when by described device with ceramic material double teeming.
4. according to the method in any one of claims 1 to 3, which is characterized in that the attachment is by rubber material or class
It is constituted like the material of rubber.
5. according to the method in any one of claims 1 to 3, which is characterized in that the attachment is by silicone material structure
At.
6. according to the method in any one of claims 1 to 3, which is characterized in that the attachment is made of plastics.
7. method according to any one of claim 1 to 6, which is characterized in that in addition to supporting member and mounted on described
Except element on supporting member, also the attachment is removed from double teeming device before green body hardening.
8. method according to any one of claim 1 to 6, which is characterized in that the supporting member and mounted on described
Element on supporting member is made of metal material.
9. a kind of method for manufacturing the nozzle ring of axial flow turbo-machine,
Toroidal cores according to any one of claim 1 to 8 are manufactured,
In the nozzle that casting is made of metal material using the toroidal cores as a part for mold or mold.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017104014.5 | 2017-02-27 | ||
| DE102017104014.5A DE102017104014A1 (en) | 2017-02-27 | 2017-02-27 | Method for producing a toroidal core for the casting production of a nozzle ring of an axial turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108500213A true CN108500213A (en) | 2018-09-07 |
Family
ID=63112292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810164217.4A Pending CN108500213A (en) | 2017-02-27 | 2018-02-27 | The method for manufacturing the toroidal cores of the nozzle ring for casting axial flow turbo-machine |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2018140439A (en) |
| KR (1) | KR20180099483A (en) |
| CN (1) | CN108500213A (en) |
| CH (1) | CH713505A2 (en) |
| DE (1) | DE102017104014A1 (en) |
Citations (12)
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|---|---|---|---|---|
| GB785291A (en) * | 1953-10-27 | 1957-10-23 | Power Jets Res & Dev Ltd | An improved process for moulding or casting profiled articles |
| US4878827A (en) * | 1988-08-22 | 1989-11-07 | Davidson Textron Inc. | Plastic shell for foam moldings |
| CN1037289A (en) * | 1987-03-19 | 1989-11-22 | 高伟 | Simple strengthening method for fast making silastic mould |
| US20070201980A1 (en) * | 2005-10-11 | 2007-08-30 | Honeywell International, Inc. | Method to augment heat transfer using chamfered cylindrical depressions in cast internal cooling passages |
| US20080006761A1 (en) * | 2006-06-22 | 2008-01-10 | John Vitale | Round rubber champhering ring |
| CN102125996A (en) * | 2010-12-30 | 2011-07-20 | 吉林大学 | Method for forming bionic non-smooth surface of casting |
| EP2546007A1 (en) * | 2011-07-12 | 2013-01-16 | United Technologies Corporation | Microcircuit skin core cut back to reduce microcircuit trailing edge stresses of an airfoil |
| CN202683928U (en) * | 2012-07-12 | 2013-01-23 | 陈国强 | Quick molding wax mould of metal pipeline |
| CN202963369U (en) * | 2012-02-01 | 2013-06-05 | 大同北方天力增压技术有限公司 | Split type wax mold die of integral nozzle ring |
| CN203484603U (en) * | 2013-09-24 | 2014-03-19 | 南京宁铁有色合金科技开发有限公司 | Setting ring |
| KR101376674B1 (en) * | 2013-10-04 | 2014-03-21 | 권성애 | Precision casting method of fauset connector |
| DE202014002981U1 (en) * | 2014-04-08 | 2014-04-16 | Man Diesel & Turbo Se | Axial turbine for an exhaust gas turbocharger |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11350906A (en) * | 1998-06-12 | 1999-12-21 | Mitsubishi Heavy Ind Ltd | Production method of turbine stationary blade |
| EP2186581B1 (en) * | 2008-11-14 | 2013-07-24 | Alstom Technology Ltd | Multi vane segment design and casting method |
| US10352180B2 (en) * | 2013-10-23 | 2019-07-16 | General Electric Company | Gas turbine nozzle trailing edge fillet |
-
2017
- 2017-02-27 DE DE102017104014.5A patent/DE102017104014A1/en not_active Withdrawn
-
2018
- 2018-01-18 CH CH00059/18A patent/CH713505A2/en not_active Application Discontinuation
- 2018-02-20 KR KR1020180019978A patent/KR20180099483A/en not_active Application Discontinuation
- 2018-02-26 JP JP2018031818A patent/JP2018140439A/en active Pending
- 2018-02-27 CN CN201810164217.4A patent/CN108500213A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB785291A (en) * | 1953-10-27 | 1957-10-23 | Power Jets Res & Dev Ltd | An improved process for moulding or casting profiled articles |
| CN1037289A (en) * | 1987-03-19 | 1989-11-22 | 高伟 | Simple strengthening method for fast making silastic mould |
| US4878827A (en) * | 1988-08-22 | 1989-11-07 | Davidson Textron Inc. | Plastic shell for foam moldings |
| US20070201980A1 (en) * | 2005-10-11 | 2007-08-30 | Honeywell International, Inc. | Method to augment heat transfer using chamfered cylindrical depressions in cast internal cooling passages |
| US20080006761A1 (en) * | 2006-06-22 | 2008-01-10 | John Vitale | Round rubber champhering ring |
| CN102125996A (en) * | 2010-12-30 | 2011-07-20 | 吉林大学 | Method for forming bionic non-smooth surface of casting |
| EP2546007A1 (en) * | 2011-07-12 | 2013-01-16 | United Technologies Corporation | Microcircuit skin core cut back to reduce microcircuit trailing edge stresses of an airfoil |
| CN202963369U (en) * | 2012-02-01 | 2013-06-05 | 大同北方天力增压技术有限公司 | Split type wax mold die of integral nozzle ring |
| CN202683928U (en) * | 2012-07-12 | 2013-01-23 | 陈国强 | Quick molding wax mould of metal pipeline |
| CN203484603U (en) * | 2013-09-24 | 2014-03-19 | 南京宁铁有色合金科技开发有限公司 | Setting ring |
| KR101376674B1 (en) * | 2013-10-04 | 2014-03-21 | 권성애 | Precision casting method of fauset connector |
| DE202014002981U1 (en) * | 2014-04-08 | 2014-04-16 | Man Diesel & Turbo Se | Axial turbine for an exhaust gas turbocharger |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20180099483A (en) | 2018-09-05 |
| JP2018140439A (en) | 2018-09-13 |
| DE102017104014A1 (en) | 2018-08-30 |
| CH713505A2 (en) | 2018-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: Augsburg Applicant after: Mann Energy Solutions Ltd. Address before: Augsburg Applicant before: Man Diesel & Turbo SE |
|
| CB02 | Change of applicant information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180907 |
|
| WD01 | Invention patent application deemed withdrawn after publication |