CN204321143U - A kind of turbocharger pressure impeller near-net forming die casting - Google Patents
A kind of turbocharger pressure impeller near-net forming die casting Download PDFInfo
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- CN204321143U CN204321143U CN201420758513.4U CN201420758513U CN204321143U CN 204321143 U CN204321143 U CN 204321143U CN 201420758513 U CN201420758513 U CN 201420758513U CN 204321143 U CN204321143 U CN 204321143U
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- inner membrance
- chamber
- pressure impeller
- blade
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- 238000004512 die casting Methods 0.000 title claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000005266 casting Methods 0.000 abstract description 9
- 238000001125 extrusion Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000005242 forging Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910021652 non-ferrous alloy Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Forging (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Supercharger (AREA)
Abstract
The utility model belongs to stress metal cast form technical field of mold, particularly a kind of turbocharger pressure impeller near-net forming die casting.This mould is divided into outer die cavity and inner membrance chamber two parts, and inner membrance chamber is nested in outer die cavity; Inner membrance chamber forms housing by positioning and locking ring and cover plate, and in housing, hold big leaf's slice module, vanelets module and root of blade R Corner Block List Representation; Cover plate and surround columniform center hub chamber between big leaf's slice module, vanelets module and root of blade R Corner Block List Representation; Center hub chamber stretches out, and forms multiple blade cavity, and each blade cavity is limited between adjacent module.After casting forming, inner membrance chamber is taken out from outer die cavity with pressure Impeller Parts blank, then decomposed by each metal derby of inner membrance chamber on the table, pressure Impeller Parts blank can take out in the demoulding, thus achieves employing extrusion process production turbocharger pressure impeller.
Description
Technical field
The utility model belongs to stress metal cast form technical field of mold, particularly a kind of turbocharger pressure impeller near-net forming die casting.
Background technology
Pressure impeller is the kernel component of automobile turbocharger, and its performance directly determines the effects of energy saving and emission reduction of turbocharged engine, service life and reliability.Pressure impeller shape is complicated, dimensional accuracy is high, condition of work is severe, therefore prepares difficulty high.The preparation method of Impeller Parts is pressed to mainly contain two kinds in the world at present: the machined of antigravity precision casting and forging.Antigravity casting method preparation cost is low, is most widely used.But pressure impeller properties of product prepared by the method are relatively low, high-end market (as city bus turbocharger) demand can not be adapted to.Pressure impeller excellent product performance prepared by forging machine processing method, can meet high-end market demand.But the technological process of the method is long, and preparation cost is high, therefore application is restricted.Along with the raising that car industry energy-saving and emission-reduction require, more and more higher requirement is proposed to the performance of pressure Impeller Parts, but has strict restriction to its preparation cost.
Casting forming technique is the non-ferrous alloy precision parts forming technique of a kind of advanced person, adapted to that product in modern manufacturing industry is complicated, precise treatment, lightweight, energy-saving, greenization requirement, there is the advantages such as dimensional accuracy is high, surface quality good, production efficiency is high, low cost of manufacture.Casting forming technique develops again the more advanced casting forming technology such as evacuated die-casting process, semisolid pressure casting, extruding die casting through development for many years, these technology can produce the diecast parts that defect is less, mechanical property is higher, mechanical property is close or reach Forging Technology level, produces high performance turbine booster pressure impeller provide technical foundation for adopting casting forming technology.
But pressure Impeller Parts structure very complicated (as shown in Figure 1), according to conventional die casting mold structural design, cannot take out after the die casting of pressure Impeller Parts completes from mould.How to solve the problems referred to above by mould structure design, just become the technical bottleneck that extrusion process produces pressure impeller.
Summary of the invention
The utility model provides a kind of turbocharger pressure impeller near-net forming die casting, solving traditional moulds structure cannot make pressure Impeller Parts take out from mold cavity, a difficult problem of pressing impeller Die Casting can not be carried out, the die casting manufacturing process of pressure impeller can be completed.
The technical solution adopted in the utility model is:
This mould is divided into outer die cavity and inner membrance chamber two parts, and inner membrance chamber is nested in outer die cavity; Described inner membrance chamber forms housing by positioning and locking ring and cover plate, and in housing, hold big leaf's slice module, vanelets module and root of blade R Corner Block List Representation; Described cover plate and surround columniform center hub chamber between big leaf's slice module, vanelets module and root of blade R Corner Block List Representation; Center hub chamber stretches out, and forms multiple blade cavity, and each blade cavity is limited between adjacent module.
Described outer die cavity is arranged on dynamic model, and its shape is consistent with inner membrance chamber profile.
Described big leaf's slice module, vanelets module and root of blade R Corner Block List Representation comprise the identical metal derby of several shapes respectively.
Described cover plate is made up of at least two pieces of parts divided equally.
The beneficial effects of the utility model are:
(1) mould structure adopts mold cavity nested mode, is divided into outer die cavity and inner membrance chamber two parts.The cavity structure that inner membrance chamber composition pressure impeller is shaped.After casting forming, inner membrance chamber is taken out from outer die cavity with pressure Impeller Parts blank, is then decomposed by each metal derby of inner membrance chamber on the table, and pressure Impeller Parts can take out in the demoulding, achieves and adopts extrusion process production turbocharger pressure impeller.
(2) adopt this mould structure and can realize in conjunction with extrusion process the near-net forming that turbocharger presses impeller, pressure impeller blade is without the need to machined, and production process is few, and stock utilization is high, and production efficiency is high.
(3) the pressure impeller size precision of extrusion process production is high, surface quality good, production efficiency is high, and manufacturing cost is far below existing forging machine processing pressure impeller, and mechanical property is close or reach Forging Technology level.
(4) impeller blade root R angle is pressed to adopt special shaping module to form, can prevent this part from occurring the defects such as die casting overlap, burr, thus make pressure impeller appearance and size and excessively the pattern of fillet and precision improve further, be conducive to pressing impeller to calm the anger the lifting of performance.
Accompanying drawing explanation
Fig. 1 (a) and Fig. 1 (b) is respectively pressure Impeller Parts profile view and cross section view.
Fig. 2 is mould each structure relative position relation schematic diagram.
Fig. 3 is the schematic diagram after the assembling of inner membrance chamber.
Fig. 4 is each part decomposition view in inner membrance chamber.
Fig. 5 is inner membrance chamber and pressure Impeller Parts blank schematic diagram after die casting completes.
Fig. 6 is inner membrance chamber step of removal 1 schematic diagram.
Fig. 7 is inner membrance chamber step of removal 2 schematic diagram.
Fig. 8 is pressure Impeller Parts blahk structure schematic diagram.
Number in the figure:
1-dynamic model; 2-cover half; The outer die cavity of 3-; 4-inner membrance chamber; 5-positioning and locking ring; 6-cover plate; 7-big leaf's slice module; 8-vanelets module; 9-root of blade R Corner Block List Representation; 10-presses Impeller Parts blank; 11-blade die cavity assembly; 12-presses Impeller Parts body; 13-running gate system.
Detailed description of the invention
The utility model provides a kind of turbocharger pressure impeller near-net forming die casting, is described further the utility model below in conjunction with the drawings and specific embodiments.
This mould structure adopts mold cavity nested mode, is divided into outer die cavity 3 and inner membrance chamber 4 two parts.Outer die cavity 3 vibrational power flow is on dynamic model 1, and its mold cavity shapes is consistent with inner membrance chamber 4 profile.Inner membrance chamber 4 is nested in outer die cavity 3 li, and its position relationship as shown in Figure 2.
Inner membrance chamber 4 is placed on outer die cavity 3 li, and can from outer die cavity 3 li taking-up, and its installation diagram shape as shown in Figure 3.Inner membrance chamber 4 is made up of positioning and locking ring 5, cover plate 6, big leaf's slice module 7, vanelets module 8 and root of blade R Corner Block List Representation 9, as shown in Figure 4.Big leaf's slice module 7, vanelets module 8 and root of blade R Corner Block List Representation 9 be composition pressure Impeller Parts cavity shape jointly, they respectively by several independently metal derby form, after being assembled together, be fixedly installed into an entirety by positioning and locking ring 5 and cover plate 6.Cover plate 6 and surround columniform center hub chamber between big leaf's slice module 7, vanelets module 8 and root of blade R Corner Block List Representation 9; Center hub chamber stretches out, and forms multiple blade cavity, and each blade cavity is limited between adjacent module.
Give the mould structure described in utilization in the present embodiment, adopt extrusion process to produce the example of 319 Aluminum Alloy Turbine booster pressure impellers, die casting equipment is that horizontal type cold-chamber die casting strangled by 340t cloth, and concrete operation step is as follows:
(1) matched moulds:
First adopt manipulator that outer die cavity 3 is put in the inner membrance chamber 4 assembled, operation die casting machine carries out matched moulds, and dynamic model 1 and cover half 2 are locked.
(2) material die casting is watered:
Pour 319 melted alloy melts into die casting machine material cup, operation die casting machine carries out injection operation, and alloy melt is high speed filling mold cavity under the impetus of die casting machine punch, and drift speed is 0.4m/s.
(3) die sinking pickup:
After 30s is solidified in 319 aluminium alloy melt pressurizes, the die sinking of operation die casting machine, pressure Impeller Parts blank 10 moves with dynamic model backward with inner membrance chamber 4.Then adopt manipulator that Impeller Parts blank 10 will be pressed to take out from inner membrance chamber 3 together with inner membrance chamber 4, place on the table.
(4) inner membrance chamber is disassembled and is taken out pressure Impeller Parts blank:
Open cover plate 6 and the positioning and locking ring 5 in inner membrance chamber 4, pressure Impeller Parts blank 10 and blade die cavity assembly 11 are taken out, then from blade die cavity assembly 11, disassemble root of blade R Corner Block List Representation 9, vanelets module 8 and big leaf's slice module 7 successively, pressure Impeller Parts blank 10 can complete demoulding work.
(5) inner membrance chamber assembling:
Positioning and locking ring 5, cover plate 6, big leaf's slice module 7, vanelets module 8 and root of blade R Corner Block List Representation 9 are re-assemblied as inner membrance die cavity 4, then repeats step (1) ~ (5), start the circulation of next extrusion process.
The pressure Impeller Parts blank of casting forming as shown in Figure 8, is made up of pressure Impeller Parts body 12 and running gate system 13, adopts machining mode to remove running gate system 13 and also can obtain pressure Impeller Parts finished product in processing technology hole.
Claims (4)
1. a turbocharger pressure impeller near-net forming die casting, be divided into outer die cavity (3) and inner membrance chamber (4) two parts, inner membrance chamber (4) are nested in outer die cavity (3), it is characterized in that:
Described inner membrance chamber (4) forms housing by positioning and locking ring (5) and cover plate (6), and in housing, hold big leaf's slice module (7), vanelets module (8) and root of blade R Corner Block List Representation (9); Described cover plate (6) and surround columniform center hub chamber between big leaf's slice module (7), vanelets module (8) and root of blade R Corner Block List Representation (9); Center hub chamber stretches out, and forms multiple blade cavity, and each blade cavity is limited between adjacent module.
2. a kind of turbocharger pressure impeller near-net forming die casting according to claim 1, it is characterized in that, described outer die cavity (3) is arranged on dynamic model (1), and its shape is consistent with inner membrance chamber (4) profile.
3. a kind of turbocharger pressure impeller near-net forming die casting according to claim 1, it is characterized in that, described big leaf's slice module (7), vanelets module (8) and root of blade R Corner Block List Representation (9) comprise the identical metal derby of several shapes respectively.
4. a kind of turbocharger pressure impeller near-net forming die casting according to claim 1, it is characterized in that, described cover plate (6) is made up of at least two pieces of parts divided equally.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420758513.4U CN204321143U (en) | 2014-12-04 | 2014-12-04 | A kind of turbocharger pressure impeller near-net forming die casting |
| PCT/CN2015/000848 WO2016086508A1 (en) | 2014-12-04 | 2015-12-04 | Pressure impeller mold and semi-solid shaping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420758513.4U CN204321143U (en) | 2014-12-04 | 2014-12-04 | A kind of turbocharger pressure impeller near-net forming die casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204321143U true CN204321143U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420758513.4U Expired - Fee Related CN204321143U (en) | 2014-12-04 | 2014-12-04 | A kind of turbocharger pressure impeller near-net forming die casting |
Country Status (1)
| Country | Link |
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| CN (1) | CN204321143U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086508A1 (en) * | 2014-12-04 | 2016-06-09 | 北京有色金属研究总院 | Pressure impeller mold and semi-solid shaping method |
| CN111375742A (en) * | 2020-05-15 | 2020-07-07 | 深圳市品成金属制品有限公司 | Turbine rotary ejection die-casting die |
| CN115673285A (en) * | 2022-11-23 | 2023-02-03 | 贵阳华烽有色铸造有限公司 | Die-casting molding die for aviation special motor housing and using method thereof |
-
2014
- 2014-12-04 CN CN201420758513.4U patent/CN204321143U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086508A1 (en) * | 2014-12-04 | 2016-06-09 | 北京有色金属研究总院 | Pressure impeller mold and semi-solid shaping method |
| CN111375742A (en) * | 2020-05-15 | 2020-07-07 | 深圳市品成金属制品有限公司 | Turbine rotary ejection die-casting die |
| CN115673285A (en) * | 2022-11-23 | 2023-02-03 | 贵阳华烽有色铸造有限公司 | Die-casting molding die for aviation special motor housing and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JIANGSU SINAGRT MATERIALS TECHNOLOGIES CO., LTD. Assignor: General Research Institute for Nonferrous Metals Contract record no.: 2016990000064 Denomination of utility model: Near-net shaping pressure-casting mold for turbocharger impellers Granted publication date: 20150513 License type: Common License Record date: 20160301 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190522 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Research Institute of engineering and Technology Co., Ltd. Address before: No. 2, Xinjie street, Xicheng District, Beijing, Beijing Patentee before: General Research Institute for Nonferrous Metals |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20191204 |