CN107008854A - A kind of manufacturing process of hot investment casting pump housing impeller wax-pattern - Google Patents
A kind of manufacturing process of hot investment casting pump housing impeller wax-pattern Download PDFInfo
- Publication number
- CN107008854A CN107008854A CN201710311915.8A CN201710311915A CN107008854A CN 107008854 A CN107008854 A CN 107008854A CN 201710311915 A CN201710311915 A CN 201710311915A CN 107008854 A CN107008854 A CN 107008854A
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- China
- Prior art keywords
- wax
- pattern
- blade
- impeller
- wheel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of manufacturing process of hot investment casting with pump housing impeller wax-pattern, impeller is divided into wheel disc, wheel cap and the part of blade three, the manufacture of wax-pattern is carried out respectively, afterwards that wheel disc, wheel cap and blade assembling is overall into impeller wax-pattern, the joint that reusable liquid wax flows into blade and wheel disc, blade and wheel cap bonds three parts.Impeller is divided into the manufactures that three parts carry out cere in the present invention, after three parts are bonded into an entirety with wax again, the relatively conventional mode using water-soluble wax mould core saves production cost.On the other hand, wax-pattern is bonded by the way of stream wax, with reference to the rotation that impeller wax-pattern is overall, wax is flowed into blade and wheel disc, the joint of wheel cap, space is filled uniformly with, it is ensured that the quality of follow-up casting workpiece.
Description
Technical field
The present invention relates to hot investment casting field, the manufacturing process of specifically related to a kind of hot investment casting pump housing impeller wax-pattern.
Background technology
The undercurrent that double shrouded wheel does not have vane tip loses, and efficiency is higher, therefore widely applies in the pump housings such as centrifugal pump.
Double shrouded wheel mainly includes wheel disc, wheel cap and the part of blade three, because its moulding surface structure is complex, to the technological requirement of casting
Also it is of a relatively high, in order to ensure precision, typically all manufactured using hot investment casting mode.Hot investment casting is typically all to use
Model casting, is typically all the interior lumen type for first making double shrouded wheel first with water soluble wax in traditional double shrouded wheel production
Core, then carries out the making of wax-pattern further according to the core.It is put into after shaping investment pattern, then by wax-pattern in water, removes water soluble wax
The core being made.But the price of water soluble wax is higher, and can only be disposable, it is impossible to recycle, considerably increase life
Produce cost.
The content of the invention
In order to solve the above problems, the invention provides a kind of system of lower-cost hot investment casting pump housing impeller wax-pattern
Make technique.
The present invention is realized using following scheme：
A kind of manufacturing process of hot investment casting pump housing impeller wax-pattern, is divided into wheel disc, wheel cap, three parts of blade by impeller wax-pattern
Manufacture respectively, after three partially synthetic impeller wax-patterns are overall, mainly include the following steps that：
Step one：Make the wax-pattern of impeller blade；
Step 2：The wax-pattern of hub disk is made, the upper surface of wheel disc is reserved with the first groove for installing blade, the first ditch
The geomery of groove and the geomery of blade match；
Step 3：The wax-pattern of wheel cap is made, wheel covers the second groove being reserved with for installing blade, the shape chi of second groove
The very little geomery with blade matches；
Step 4：Cooling, by Step 1: Step 2: the blade completed in step 3, wheel disc, wheel cap are cooled down；
Step 5：Wheel disc after cooling, wheel cap and blade are assembled, blade lower end is plugged in the first groove of wheel disc
In, the rear second groove for keeping wheel cap is corresponding with blade upper end, the grafting of blade upper end is entered in second groove, completes impeller wax-pattern
Overall assembling；
Step 6：Flow wax bonding；The impeller wax-pattern being completed in step 5 is integrally kept into wheel disc in lower section first, with wheel disc
Center is axle and tilted, and impeller wax-pattern is integrally at the uniform velocity rotated using the center of wheel disc as axle, the wax of liquid is at the uniform velocity flowed
Enter to blade and first groove joint；Impeller wax-pattern is integrally overturn again, wheel cap is kept in lower section, using wheel cap center as axle simultaneously
Tilt, impeller wax-pattern is integrally rotated using the center of wheel cap as axle, while making liquid wax be flowed into blade and second groove
Joint.
Further, the step 4 is cooled down using air-cooled or water cooling.
Further, the overall angle of inclination of wax-pattern is 20~70 degree in the step 6.
Further, the integrally rotated linear velocity of impeller wax-pattern is 3~7m/s in the step 6.
Further, the inflow velocity of liquid wax is 5~20ml/min in the step 6.
Existing technology is compareed, the invention has the advantages that：
In the present invention by impeller be divided into three part carry out cere manufactures, after again with wax by three parts be bonded into one it is whole
Body, the relatively conventional mode using water-soluble wax mould core saves production cost.On the other hand, using stream wax by the way of pair
Wax-pattern is bonded, and with reference to the rotation that impeller wax-pattern is overall, wax is flowed into blade and wheel disc, the joint of wheel cap, and space is equal
Fill up evenly, it is ensured that the quality of follow-up casting workpiece.
Brief description of the drawings
Fig. 1 is a kind of technique stream of the embodiment of manufacturing process one of hot investment casting pump housing impeller wax-pattern of one barrel of the present invention
Cheng Tu.
Fig. 2 is the overall assembling process figure of the present embodiment impeller wax-pattern.
Fig. 3 is the present embodiment impeller wax-pattern overall schematic.
Embodiment
For ease of skilled artisan understands that the present invention, below in conjunction with specific embodiments and the drawings the present invention is made into
One step is described in detail.
Referring to figs. 1 to the manufacturing process of Fig. 3, the present invention a kind of hot investment casting pump housing impeller wax-pattern provided, by impeller
Wax-pattern is divided into wheel, 1, wheel cap 2,3 three parts of blade manufacture respectively, after three partially synthetic impeller wax-patterns are overall, main bag
Include following steps：
Step one：Make the wax-pattern of impeller blade 3；
Step 2：The wax-pattern of hub disk 1 is made, the upper surface of wheel disc 1 is reserved with the first groove 11 for installing blade, the
The geomery of one groove and the geomery of blade match；
Step 3：Make the second groove 21 being reserved with the wax-pattern of wheel cap 2, wheel cap 2 for installing blade, the shape of second groove
The geomery of shape size and blade matches；
Step 4：Cooling, by Step 1: Step 2: the blade 3 completed in step 3, wheel disc 1, wheel cap 2 are cooled down；
Step 5：Wheel disc 1 after cooling, wheel cap 2 and blade 3 are assembled, blade lower end is plugged in the first ditch of wheel disc
In groove 11, the rear second groove for keeping wheel cap is corresponding with blade upper end, the grafting of blade upper end is entered in second groove 21, completes leaf
Take turns the overall assembling of wax-pattern；
Step 6：Flow wax bonding；The impeller wax-pattern being completed in step 5 is kept into wheel disc in lower section first, to take turns disk center
For axle and tilt, and impeller wax-pattern is integrally at the uniform velocity rotated using the center of wheel disc as axle, the wax of liquid is at the uniform velocity flowed into
Blade and first groove joint；Impeller wax-pattern is integrally overturn again, wheel cap is kept in lower section, so that axle is in wheel cap center and inclines
Tiltedly, impeller wax-pattern is integrally rotated using the center of wheel cap as axle, connect while making liquid wax be flowed into blade with second groove
At conjunction.
Wherein, wax-pattern is cooled down using air-cooled in step 4.The overall center with wheel disc of impeller wax-pattern in step 6
45 degree, after impeller wax-pattern is integrally turned over are tilted for axle, overall tilted by axle of the center of wheel cap of impeller wax-pattern is also 45 degree.
The integrally rotated linear velocity of impeller wax-pattern is 3m/s in step 6, and the speed that liquid wax is flowed into is 10ml/min.Liquid wax is flowed into
To after the joint of blade and wheel disc, blade and wheel cap, with the rotation that impeller wax-pattern is overall, wax is along blade and the first ditch
The joint of groove, blade and second groove is slowly flowed, until equably all will cover and bond along joint.
In the specific implementation, for the selection of design parameter, in addition to the above embodiments, each parameter can also by the present invention
Using following data：
Such as step 4 can also be cooled down by the way of water cooling to wax-pattern, and the overall angle of inclination of impeller wax-pattern can in step 6
For any value between 20~70 degree, such as 25 degree or 50 degree or 60 degree；The overall linear velocity of impeller wax-pattern in step 6
Can be any value between 3~7m/s, such as 4m/s or 5m/s or 6m/s；In step 6 the inflow velocity of liquid wax can for 5~
Any value between 20ml/min, such as 5ml/min or 11ml/min or 18ml/min.
In the present invention by impeller be divided into three part carry out cere manufactures, after three parts are bonded into one with wax again
Overall, the relatively conventional mode using water-soluble wax mould core saves production cost.On the other hand, by the way of stream wax
Wax-pattern is bonded, with reference to the rotation that impeller wax-pattern is overall, wax is flowed into blade and wheel disc, the joint of wheel cap, by space
It is filled uniformly with, it is ensured that the quality of follow-up casting workpiece.
Although description of this invention combination embodiments above is carried out, those skilled in the art
Many replacements, modifications and variations can be carried out according to above-mentioned content, be obvious.Therefore, it is all such to substitute, change
Enter and change is included in scope of the appended claims.
Claims (5)
1. a kind of hot investment casting manufacturing process of pump housing impeller wax-pattern, it is characterised in that impeller wax-pattern is divided into wheel disc（1）、
Wheel cap（2）, blade（3）Three parts are manufactured respectively, after three partially synthetic impeller wax-patterns are overall, mainly including following step
Suddenly：
Step one：Make impeller blade（3）Wax-pattern；
Step 2：Make hub disk（1）Wax-pattern, the upper surface of wheel disc is reserved with the first groove for installing blade
（11）, the geomery of first groove and the geomery of blade match；
Step 3：Make wheel cap（2）Wax-pattern, wheel covers the second groove that is reserved with for installing blade（21）, second groove
Geomery and the geomery of blade match；
Step 4：Cooling, by Step 1: Step 2: the blade completed in step 3（3）, wheel disc（1）, wheel cap（2）Carry out
Cooling；
Step 5：To the wheel disc after cooling（1）, wheel cap（2）And blade（3）Assembled, blade lower end is plugged in wheel disc
First groove（11）In, the second groove of rear holding wheel cap（21）It is corresponding with blade upper end, the grafting of blade upper end is entered the second ditch
In groove, the overall assembling of impeller wax-pattern is completed；
Step 6：Flow wax bonding；The impeller wax-pattern being completed in step 5 is integrally kept into wheel disc first（1）In lower section, with
Wheel disk center is axle and tilted, and impeller wax-pattern is integrally at the uniform velocity rotated using the center of wheel disc as axle, makes the wax of liquid even
Speed is flowed into blade（3）With first groove（11）Joint；Impeller wax-pattern is integrally overturn again, wheel cap is kept（2）In lower section, with
Wheel cap center is axle and tilted, and impeller wax-pattern is integrally rotated using the center of wheel cap as axle, while being flowed into liquid wax
Blade（3）With second groove（21）Joint.
2. the hot investment casting according to claim 1 manufacturing process of pump housing impeller wax-pattern, it is characterised in that the step
Four are cooled down using air-cooled or water cooling.
3. the hot investment casting according to claim 2 manufacturing process of pump housing impeller wax-pattern, it is characterised in that the step
The overall angle of inclination of wax-pattern is 20~70 degree in six.
4. the hot investment casting according to claim 3 manufacturing process of pump housing impeller wax-pattern, it is characterised in that the step
The integrally rotated linear velocity of impeller wax-pattern is 3~7m/s in six.
5. the hot investment casting according to claim 4 manufacturing process of pump housing impeller wax-pattern, it is characterised in that the step
The inflow velocity of liquid wax is 5~20ml/min in six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311915.8A CN107008854A (en) | 2017-05-05 | 2017-05-05 | A kind of manufacturing process of hot investment casting pump housing impeller wax-pattern |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311915.8A CN107008854A (en) | 2017-05-05 | 2017-05-05 | A kind of manufacturing process of hot investment casting pump housing impeller wax-pattern |
Publications (1)
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| CN107008854A true CN107008854A (en) | 2017-08-04 |
Family
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|---|---|---|---|
| CN201710311915.8A Pending CN107008854A (en) | 2017-05-05 | 2017-05-05 | A kind of manufacturing process of hot investment casting pump housing impeller wax-pattern |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297453A (en) * | 2017-05-10 | 2017-10-27 | 株洲中航动力精密铸造有限公司 | Method for manufacturing wax membrane for shrouded centrifugal impellor |
| CN107695291A (en) * | 2017-09-26 | 2018-02-16 | 安徽伟工机械科技有限公司 | A kind of cured type preparation method of rotor |
| CN109304422A (en) * | 2018-12-08 | 2019-02-05 | 潍坊盛龙精密铸件有限公司 | A kind of double shrouded wheel wax-pattern adhesive tool and technique for sticking |
| CN109779968A (en) * | 2019-01-22 | 2019-05-21 | 四川贝特风机有限公司 | A kind of air-conditioning draught fan impeller and its manufacturing process |
| CN110180991A (en) * | 2019-06-12 | 2019-08-30 | 鹰普航空零部件（无锡）有限公司 | A kind of precision casting process of the thin-wall aluminum alloy aviation pump housing |
| CN112296254A (en) * | 2020-10-10 | 2021-02-02 | 株洲凯丰实业股份有限公司 | Power turbine impeller wax mold integral demolding mold and wax mold manufacturing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1177238A (en) * | 1997-09-03 | 1999-03-23 | Ebara Corp | Lost foam pattern for casting |
| DE20022013U1 (en) * | 2000-11-29 | 2001-04-26 | Industrial Technology Research Institute, Chutung, Hsinchu | Integrated three-dimensional leaf structure |
| JP2002066689A (en) * | 2000-08-25 | 2002-03-05 | Ebara Corp | Mold manufacturing method |
| JP4198957B2 (en) * | 2002-08-30 | 2008-12-17 | 株式会社荏原製作所 | Precision casting method, pump impeller precision casting method, and pump manufacturing method |
| CN203476790U (en) * | 2013-08-29 | 2014-03-12 | 上海东方泵业(集团)有限公司 | Stainless steel single-suction centrifugal pump impeller made by medium-temperature lost wax casting |
| CN204061301U (en) * | 2014-09-22 | 2014-12-31 | 安徽应流铸业有限公司 | The cere adhesive tool of double shrouded wheel |
| CN204171276U (en) * | 2014-10-21 | 2015-02-25 | 胜利油田胜利泵业有限责任公司 | Submersible electric pump pump vane casting Wax mold |
-
2017
- 2017-05-05 CN CN201710311915.8A patent/CN107008854A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1177238A (en) * | 1997-09-03 | 1999-03-23 | Ebara Corp | Lost foam pattern for casting |
| JP2002066689A (en) * | 2000-08-25 | 2002-03-05 | Ebara Corp | Mold manufacturing method |
| DE20022013U1 (en) * | 2000-11-29 | 2001-04-26 | Industrial Technology Research Institute, Chutung, Hsinchu | Integrated three-dimensional leaf structure |
| JP4198957B2 (en) * | 2002-08-30 | 2008-12-17 | 株式会社荏原製作所 | Precision casting method, pump impeller precision casting method, and pump manufacturing method |
| CN203476790U (en) * | 2013-08-29 | 2014-03-12 | 上海东方泵业(集团)有限公司 | Stainless steel single-suction centrifugal pump impeller made by medium-temperature lost wax casting |
| CN204061301U (en) * | 2014-09-22 | 2014-12-31 | 安徽应流铸业有限公司 | The cere adhesive tool of double shrouded wheel |
| CN204171276U (en) * | 2014-10-21 | 2015-02-25 | 胜利油田胜利泵业有限责任公司 | Submersible electric pump pump vane casting Wax mold |
Non-Patent Citations (2)
| Title |
|---|
| 叶宗林等: "《精铸离心泵叶轮铸件内腔表面缺陷的分析与改进》", 《特种铸造及有色合金》 * |
| 郑传耀: "《高合金钢叶轮的熔模精密铸造》", 《铸工》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297453A (en) * | 2017-05-10 | 2017-10-27 | 株洲中航动力精密铸造有限公司 | Method for manufacturing wax membrane for shrouded centrifugal impellor |
| CN107297453B (en) * | 2017-05-10 | 2020-07-21 | 中国航发南方工业有限公司 | Wax mould manufacturing method for closed centrifugal impeller |
| CN107695291A (en) * | 2017-09-26 | 2018-02-16 | 安徽伟工机械科技有限公司 | A kind of cured type preparation method of rotor |
| CN109304422A (en) * | 2018-12-08 | 2019-02-05 | 潍坊盛龙精密铸件有限公司 | A kind of double shrouded wheel wax-pattern adhesive tool and technique for sticking |
| CN109304422B (en) * | 2018-12-08 | 2024-03-15 | 潍坊盛龙精密铸件有限公司 | Closed impeller wax mold bonding tool and bonding process |
| CN109779968A (en) * | 2019-01-22 | 2019-05-21 | 四川贝特风机有限公司 | A kind of air-conditioning draught fan impeller and its manufacturing process |
| CN110180991A (en) * | 2019-06-12 | 2019-08-30 | 鹰普航空零部件（无锡）有限公司 | A kind of precision casting process of the thin-wall aluminum alloy aviation pump housing |
| CN112296254A (en) * | 2020-10-10 | 2021-02-02 | 株洲凯丰实业股份有限公司 | Power turbine impeller wax mold integral demolding mold and wax mold manufacturing method |
| CN112296254B (en) * | 2020-10-10 | 2022-04-22 | 株洲凯丰实业股份有限公司 | Power turbine impeller wax mold integral demolding mold and wax mold manufacturing method |
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Effective date of abandoning: 20190705 |