CN103769560A - Suction casting process of turbocharger impeller - Google Patents
Suction casting process of turbocharger impeller Download PDFInfo
- Publication number
- CN103769560A CN103769560A CN201410048507.4A CN201410048507A CN103769560A CN 103769560 A CN103769560 A CN 103769560A CN 201410048507 A CN201410048507 A CN 201410048507A CN 103769560 A CN103769560 A CN 103769560A
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- casting process
- crucible
- pipette
- liquid
- suction pipe
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- 238000005266 casting Methods 0.000 title claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 3
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invention discloses a suction casting process of a turbocharger impeller. The suction casting process of the turbocharger impeller comprises the following steps: covering a sealing hood on a crucible cover, and keeping air tightness; exhausting air into inner space of the sealing hood to form negative pressure, and sucking metal liquid in a crucible into a mould cavity through a liquid suction pipe; cooling: cooling and shaping a cast piece in the mould cavity; taking out the shaped cast piece, wherein in the suction casting process, the liquid level of the metal liquid in the liquid suction pipe is kept at a pipe orifice of the liquid suction pipe. The liquid suction pipe is filled with the metal liquid, so that when the sealing hood is opened to take out the cast piece, due to the action of gravity, the metal liquid in the liquid suction pipe is avoided from returning to the crucible to cause reduction of the temperature of the liquid suction pipe, so that energy is saved; in addition, the metal liquid does not solidify in the liquid suction pipe, so that the quality of the cast piece is improved.
Description
Technical field
The present invention relates to field of metal casting technology, be specifically related to a kind of supercharger impeller and inhale casting process.
Background technology
Vacuum pressing and casting is the normal a kind of mode adopting in casting industry, and vacuum pressing and casting can reduce the pore of foundry goods inside, improves the quality of foundry goods.Vacuum casting device is mainly divided into two kinds, is respectively suction pouring device and vacuum pressed apparatus for pouring.Suction pouring device is applicable to the casting of the foundry goods that the gentle hole number of casting is few, compactness is high, mechanical property is high of low die casting, is particularly useful for the foundry goods that molded shapes is thin, area is large, complex-shaped, can reduce the pore quantity in foundry goods.
Vacuum pressed apparatus for pouring is applicable to contour structures complexity, meticulous, thin-walled, dimensional accuracy and surface smoothness and requires the casting of high foundry goods, and this class foundry goods is also having good quality aspect mechanical property and air-tightness.Vacuum pressed apparatus for pouring is also applicable to easily producing shrinkage cavity, loose foundry goods.But it requires have appropriate dead head aluminium alloy utilization rate low.
General vacuum casting device all has vacuum (-tight) housing at present, is provided with mould in vacuum (-tight) housing, and mold cavity communicates by pipette with the molten metal in crucible, when work, to vacuumizing in vacuum (-tight) housing, relies on negative pressure that molten metal is sucked in mold cavity, carries out foundry goods moulding.After cooling, open vacuum (-tight) housing, take out foundry goods, in this process, molten metal in pipette falls after rise to crucible, pipette inner chamber contacts with air, its temperature is reduced, residual molten metal also can solidify on pipette inwall, when next round foundry goods, the molten metal in crucible is inhaled in mold cavity again, again pipette is heated and melted the solid metal on pipette inwall, cause the waste of the energy, meanwhile, molten metal lives through and once solidifies the process of melting again and likely change its metal-cured behavior, even affects the quality of foundry goods.
Summary of the invention
The invention provides a kind of supercharger impeller and inhale casting process, reduced the waste of the energy in casting process, improved the quality of foundry goods.
In order to solve the problems of the technologies described above, the present invention is achieved by following technical proposals: a kind of supercharger impeller is inhaled casting process, comprises the following steps: a. on crucible cover, keeps air-tightness by closing cap; B. bled in seal closure inner space, make to form negative pressure, molten metal in crucible is sucked in mold cavity by pipette; C. cooling stage, makes the foundry goods cooling forming in mold cavity; D. take out the foundry goods of moulding; It is characterized in that, in suction casting process, the molten metal liquid level in described pipette maintains the described pipette mouth of pipe.Make to be full of molten metal in pipette, when having avoided opening seal closure and getting foundry goods, due to Action of Gravity Field, the molten metal in pipette falls back to the pipette temperature causing in crucible to be reduced, save the energy, meanwhile, molten metal can not solidify in pipette, has improved the quality of foundry goods.
As preferably, the present invention makes the molten metal liquid level in described pipette maintain the described pipette mouth of pipe by being located at the first intake valve on described crucible cover to passing into gas in crucible.Pass into gas and make to produce certain air pressure in crucible, by the extremely described pipette mouth of pipe of metal hydraulic.
As preferably, the present invention is controlled the startup of described the first intake valve or is closed by the signal of being located at the perceptron of the described pipette mouth of pipe and providing.In the time that molten metal touches perceptron, perceptron produces signal closes the first intake valve.When molten metal liquid level is during lower than perceptron, perceptron produces another signal starts the first intake valve, molten metal liquid level in described pipette is risen to described perceptron contact to passing into gas in crucible.
Compared with prior art, the present invention has following beneficial effect: suction foundry work artistic skill of the present invention guarantees to be full of molten metal in pipette, in the time opening seal closure and get foundry goods, metal bath surface also can not decline in time, avoid the cooling of pipette, save the energy, avoid molten metal solidifying on pipette inwall simultaneously, improved the quality of foundry goods.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail: a kind of supercharger impeller of the present invention is inhaled the related device of casting process, comprise crucible 1, be located at the crucible cover 4 of described crucible 1 opening part, be located at the mold base 5 on described crucible cover 4, described mold base 5 is provided with die parts 6, in described mold base 5, be useful on the mold cavity 7 of casting mould, described mold cavity 7 communicates with the pipette 3 that runs through described crucible cover 4, being located at described crucible cover 4 is provided with and described mold base 5 can be covered in to openable seal closure 2 wherein with described die parts 6, described crucible cover 4 is provided with the first intake valve 41, described seal closure 2 is provided with the second intake valve 21 and the second air outlet valve 22, it is characterized in that, described pipette 3 is provided with the perceptron 31 for perception metal bath surface, described perceptron 31 is connected with the controller of described the first intake valve 41.In present embodiment, described perceptron 31 is current potential contact, and described current potential contact is discontiguous electric-conductor each other, and in the time that molten metal rises to current potential contact position, electric-conductor, by molten metal conductive electric current, produces the signal of telecommunication.Described perceptron 31 is located at the intersection of described pipette 3 and described mold cavity 7, can make so to be farthest full of in pipette 3 molten metal.Save the energy, improve casting quality.Described die parts 6 is connected with seal closure 2 by device for exerting 8, and described device for exerting 8 is located at the pipe bending cylinder on described seal closure 2, and when foundry goods, die parts 6 can be tightly pressed on mold base 5, the accuracy of assurance institute casting mould like this.Described seal closure 2 is provided with vacuum contact table, pressure contact table, temperature contact table, can detect vacuum, pressure, the temperature conditions of seal closure interior 2 moment.Described crucible cover 4 is provided with the thermometer 43 for surveying crucible internal temperature, for reading the temperature in crucible 1, prevents too high or too low for temperature.
Seal closure 2 is provided with lowering or hoisting gear 9, can easily seal closure 2 be mentioned.The material of described mold base 5 is foaming plaster, and the pore diameter of described foaming plaster is 0.2 ~ 0.3 millimeter, and this material thermal resistance is good, and can at utmost reduce the pore in foundry goods.
A kind of supercharger impeller of the present invention is inhaled casting process, comprises the following steps: seal closure 2 is covered on crucible cover 4, keep air-tightness; Bled in seal closure 2 inner spaces, make to form negative pressure, molten metal in crucible 1 is sucked in mold cavity 7 by pipette 3; Cooling stage, makes the foundry goods cooling forming in mold cavity 7, can open the second intake valve 21 air is entered in this process, accelerates cooling; After cooling, provide lowering or hoisting gear 9 to mention seal closure 2, take out the foundry goods of moulding; Meanwhile, inhaling in casting process, make the molten metal liquid level in described pipette 3 maintain described pipette 3 mouths of pipe by being located at the first intake valve 41 on described crucible cover 4 to passing into gas in crucible 1.Control the startup of described the first intake valve 41 or close by being located at the signal that the perceptron 31 of described pipette 3 mouths of pipe provides.In this process, perceptron 31 and the first intake valve 41 can guarantee that in pipette 3, metal bath surface does not decline, and save the energy, have improved the quality of foundry goods.
Claims (3)
1. supercharger impeller is inhaled a casting process, comprises the following steps: a. covers seal closure (2) at crucible cover (4) upper, keeps air-tightness; B. bled in seal closure (2) inner space, make to form negative pressure, molten metal in crucible (1) is sucked in mold cavity (7) by pipette (3); C. cooling stage, makes the foundry goods cooling forming in mold cavity (7); D. take out the foundry goods of moulding; It is characterized in that, in suction casting process, the molten metal liquid level in described pipette (3) maintains described pipette (3) mouth of pipe.
2. a kind of supercharger impeller according to claim 1 is inhaled casting process, it is characterized in that, make the molten metal liquid level in described pipette (3) maintain described pipette (3) mouth of pipe by being located at the first intake valve (41) on described crucible cover (4) to passing into gas in crucible (1).
3. a kind of supercharger impeller according to claim 2 is inhaled casting process, it is characterized in that, controls the startup of described the first intake valve (41) or closes by being located at the signal that the perceptron (31) of described pipette (3) mouth of pipe provides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048507.4A CN103769560A (en) | 2014-02-12 | 2014-02-12 | Suction casting process of turbocharger impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048507.4A CN103769560A (en) | 2014-02-12 | 2014-02-12 | Suction casting process of turbocharger impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103769560A true CN103769560A (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410048507.4A Pending CN103769560A (en) | 2014-02-12 | 2014-02-12 | Suction casting process of turbocharger impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103769560A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834401A (en) * | 2015-01-16 | 2016-08-10 | 凤城市合鑫机械制造有限公司 | Novel method for vacuum pressure-regulating casting of supercharger impeller in one-tube multi-mold manner and special-purpose device |
| CN108856680A (en) * | 2017-05-15 | 2018-11-23 | 科华控股股份有限公司 | A kind of suction pouring device convenient for lifting operation of driving a vehicle |
| CN112935223A (en) * | 2019-12-11 | 2021-06-11 | 科华控股股份有限公司 | Structure for preventing sealing failure by modifying vacuum suction casting profiling cylinder outside suction casting chamber |
| CN114535531A (en) * | 2022-02-22 | 2022-05-27 | 连云港宝迪汽车配件制造有限公司 | Automobile engine end cover die-casting device and method |
| CN119387558A (en) * | 2024-12-31 | 2025-02-07 | 北京理工大学唐山研究院 | Method, device, equipment, medium and system for controlling metal liquid flow for negative pressure suction casting |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143687A (en) * | 1976-10-18 | 1979-03-13 | Pont-A-Mousson S.A. | Process and device for controlling a vessel for pouring liquid under low pressure in a repeated manner |
| US20070125509A1 (en) * | 2005-12-02 | 2007-06-07 | Hohenstein Bradly L | Aluminum casting method with helium insertion |
| CN101224493A (en) * | 2008-02-18 | 2008-07-23 | 无锡刚正精密吸铸有限公司 | Vacuum pressure absorbing and casting device |
| JP2008254052A (en) * | 2007-04-06 | 2008-10-23 | Daido Castings:Kk | METHOD FOR PRODUCING Ti ALLOY CASTING |
| JP2008264846A (en) * | 2007-04-23 | 2008-11-06 | Hitachi Metal Precision:Kk | Method for manufacturing impeller |
| CN201308983Y (en) * | 2008-10-30 | 2009-09-16 | 张永安 | Multi-cavity low-pressure casting press vane wheel device |
| CN101585079A (en) * | 2008-05-21 | 2009-11-25 | 沈阳铸造研究所 | Low-pressure casting filling method and low-pressure casing filling equipment used by same |
| CN102000803A (en) * | 2010-12-03 | 2011-04-06 | 苏州中门子科技有限公司 | Low-pressure casting device in copper-aluminum composite row casting system |
| CN102699273A (en) * | 2012-05-14 | 2012-10-03 | 宁波霍思特精密机械有限公司 | Precision casting method for large-scale aluminium alloy impeller |
-
2014
- 2014-02-12 CN CN201410048507.4A patent/CN103769560A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143687A (en) * | 1976-10-18 | 1979-03-13 | Pont-A-Mousson S.A. | Process and device for controlling a vessel for pouring liquid under low pressure in a repeated manner |
| US20070125509A1 (en) * | 2005-12-02 | 2007-06-07 | Hohenstein Bradly L | Aluminum casting method with helium insertion |
| JP2008254052A (en) * | 2007-04-06 | 2008-10-23 | Daido Castings:Kk | METHOD FOR PRODUCING Ti ALLOY CASTING |
| JP2008264846A (en) * | 2007-04-23 | 2008-11-06 | Hitachi Metal Precision:Kk | Method for manufacturing impeller |
| CN101224493A (en) * | 2008-02-18 | 2008-07-23 | 无锡刚正精密吸铸有限公司 | Vacuum pressure absorbing and casting device |
| CN101585079A (en) * | 2008-05-21 | 2009-11-25 | 沈阳铸造研究所 | Low-pressure casting filling method and low-pressure casing filling equipment used by same |
| CN201308983Y (en) * | 2008-10-30 | 2009-09-16 | 张永安 | Multi-cavity low-pressure casting press vane wheel device |
| CN102000803A (en) * | 2010-12-03 | 2011-04-06 | 苏州中门子科技有限公司 | Low-pressure casting device in copper-aluminum composite row casting system |
| CN102699273A (en) * | 2012-05-14 | 2012-10-03 | 宁波霍思特精密机械有限公司 | Precision casting method for large-scale aluminium alloy impeller |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834401A (en) * | 2015-01-16 | 2016-08-10 | 凤城市合鑫机械制造有限公司 | Novel method for vacuum pressure-regulating casting of supercharger impeller in one-tube multi-mold manner and special-purpose device |
| CN105834401B (en) * | 2015-01-16 | 2018-04-17 | 凤城市合鑫机械制造有限公司 | One pipe multimode vacuum adjustable pressure casting new method of supercharger impeller and special purpose device |
| CN108856680A (en) * | 2017-05-15 | 2018-11-23 | 科华控股股份有限公司 | A kind of suction pouring device convenient for lifting operation of driving a vehicle |
| CN112935223A (en) * | 2019-12-11 | 2021-06-11 | 科华控股股份有限公司 | Structure for preventing sealing failure by modifying vacuum suction casting profiling cylinder outside suction casting chamber |
| CN114535531A (en) * | 2022-02-22 | 2022-05-27 | 连云港宝迪汽车配件制造有限公司 | Automobile engine end cover die-casting device and method |
| CN119387558A (en) * | 2024-12-31 | 2025-02-07 | 北京理工大学唐山研究院 | Method, device, equipment, medium and system for controlling metal liquid flow for negative pressure suction casting |
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Application publication date: 20140507 |
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