CN1317094C - Antigravity vacuum sucking cast apparatus for aluminium base composite material - Google Patents
Antigravity vacuum sucking cast apparatus for aluminium base composite material Download PDFInfo
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- CN1317094C CN1317094C CNB2005100298859A CN200510029885A CN1317094C CN 1317094 C CN1317094 C CN 1317094C CN B2005100298859 A CNB2005100298859 A CN B2005100298859A CN 200510029885 A CN200510029885 A CN 200510029885A CN 1317094 C CN1317094 C CN 1317094C
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Abstract
The present invention relates to an antigravity vacuum sucking cast apparatus for aluminium base composite materials, which belongs to the technical field of casting. The apparatus comprises a smelting device, a vacuum sucking cast device and a gas path section, wherein in the smelting device, a stirrer is arranged on a crucible table, a protective gas passage is arranged on the crucible table near the stirrer, a heat insulating layer is arranged on a radiation resisting layer, and the heat insulating layer and the radiation resisting layer are arranged at a crucible port; in the vacuum sucking cast device, a sealing sleeve barrel, a riser tube and a sealing washer are all arranged on a baffle plate, the baffle plate is arranged on a shim plate on a crucible, a shuttering fixing sleeve is fixed on the baffle plate through a press plate, a shuttering is fixed in the shuttering fixing sleeve, a lifting hook and a lifting ring are both welded on the sealing sleeve barrel, and a vacuum channel on the sealing sleeve barrel is connected with the gas path section; in the gas path section, a vacuum pump is connected with a vacuum tank through a first stop valve, a vacuum outlet and an exhaust outlet are connected with the vacuum tank through a throttling valve and a second stop valve, and a vacuum meter is connected with a pipe at the side of the vacuum tank. The present invention has the advantages of simple structure and convenient operation and can realize scale production.
Description
Technical field
The present invention relates to a kind of equipment of casting technology field, be specially a kind of antigravity vacuum sucking cast apparatus for aluminium base composite material.The antigravity suction pouring belongs to the hot investment casting field.Be applied in the production of large-scale, the thin-walled of industry such as Aeronautics and Astronautics, electronics, complicated aluminium casting.
Background technology
The preparation of particles reiforced metal-base composition mainly comprises powder metallurgy, spray casting, pressure or pressure-free impregnation are arranged, stirring is compound etc., can directly carry out the shaping of intricate casting by stirring after compound, so this method has very big potentiality.For the high foundry goods of complex structure, large thin-wall and quality requirement, adopt the method for traditional gravity casting often to be difficult to formed composite material, need to adopt Special Processes of Metal Castings technologies such as suction pouring, counter-pressure casting; Antigravity suction pouring method shaping main feature has: liquid metal is at antigravity situation lower charging type, the molten metal rate of climb can be controlled, can avoid owing casting flaws such as casting, loose, oxide inclusion as far as possible, the foundry goods better mechanical property has the using rate of metal of significantly improving, the high advantages such as significantly improving the metal mold-filling capacity that reaches of production efficiency.
Find through literature search prior art; Chinese patent application number: 02115638; denomination of invention: " magnesium, Antigravitational vacuum method and apparatus for asting mg allor or al alloy with lost mould "; the described equipment of this patent is by the pouring platform on pouring furnace, the bell; the sandbox of placing on it; the gate spool that is communicated with pouring furnace and sandbox constitutes; the crucible that comprises band stainless steel furnace lining in the pouring furnace; gate spool coats the insulation heater coil outward; pouring furnace covers has protective gas and controllable pressure inert gas passage, and it combines the characteristics of vacuum expendable pattern mould and antigravity casting.For composite cast form, the problem that sedimentation and agglomeration traits at first will be considered often, so composite needs constantly to stir in cast form, equipment described in the patent 02115638 only is fit to the preparation of aluminium alloy, is not suitable for the shaping of aluminum matrix composite.Again because this equipment uses the disappearance proplasm, lost foam casting is to expanded material, surperficial fireproof coating, all have very high requirement in technological parameters such as fineness of sand and distribution, casting alloy fusing point, smelting temperature, pouring temperature, poring rate, casting case vacuum and the speed of evacuations, otherwise the defectives such as sand, burning into sand, leakage, carbon deposit, surface galling scab that can occur collapsing.
Summary of the invention
The object of the invention is at the deficiencies in the prior art; a kind of antigravity vacuum sucking cast apparatus for aluminium base composite material is provided; make it simple in structure, easy to operate; this equipment utilization vacuum sucks formwork with metal liquid along the antigravity direction; can prepare the aluminum matrix composite product of excellent performance, and can accomplish scale production.
The present invention is achieved by the following technical solutions, the present invention includes: smelting apparatus, suction pouring device and air path part.
Described smelting apparatus comprises: agitator, protective gas passage, heat insulation layer, radiation protective layer, crucible; agitator is arranged on the crucible platform; the protective gas passage is arranged on the crucible platform, near the agitator, heat insulation layer places on the radiation protective layer, heat insulation layer and radiation protective layer place the crucible mouth.
Described suction pouring device comprises: dividing plate, seal washer, seal sleeve, pressing plate, formwork fixed cover, suspension hook, formwork, suspension ring, vacuum passage, stalk, backing plate, wherein seal sleeve, stalk and seal washer all are arranged on the dividing plate, dividing plate places on the backing plate on the crucible, the formwork fixed cover is fixed on the dividing plate by pressing plate, formwork is fixed in the formwork fixed cover, suspension hook and suspension ring all are welded on the seal sleeve, and the vacuum passage on the seal sleeve links to each other with air path part.
Described air path part, comprise: vacuum tank, vacuum meter, vavuum pump, stop valve, control valve, vacuum outlet and exhaust outlet, its intermediate pump joins by first stop valve and vacuum tank, vacuum outlet and air exit are connected on the vacuum tank by the choke valve and second stop valve, and vacuum meter is connected on the other pipeline of vacuum tank.
When the present invention used, composite is melting in crucible, stirred; The suction pouring device is installed outside crucible, and absorbing and casting device can freely lift by crane, and then stalk is inserted in the molten metal, opens vacuum, and the composite liquid state is entered in the formwork through stalk by crucible, after the suction casting finishes, absorbing and casting device is risen, and finishes the casting process of inhaling.
Formwork adopts the fusible pattern formwork, formwork is by quartzy, sial series refractory material preparation, that adopts that the fusible pattern formwork avoided that the disappearance formwork brought requires height to expanded material, to filling the strict defective of shape parameter, can be with the fusible pattern formwork so that obtain higher vacuum in the formwork chamber, mold-filling capacity is improved, because the mold-filling capacity of aluminum matrix composite can not show a candle to aluminium alloy, high mold-filling capacity is fit to the shaping of aluminum matrix composite.
Compared with prior art; the present invention has the protective gas passage; avoided in the composite formed process oxidation, defective such as be mingled with; it has agitating device; particles settling and agglomeration traits when having avoided composite formed; its absorbing and casting device adopts on-fixed to be connected with smelting apparatus, has the characteristics of handled easily.The stalk major part is under the heat insulation layer, and heat radiation is few, and Composite Melt rises in the liquid process temperature and descends fewly, and the flowability that can overcome composite is along with the reduction of temperature significantly decline and the shaping difficulty that causes.By this equipment, can prepare thin-walled, complexity, the aluminum matrix composite product of excellent performance, and can accomplish scale production.
Description of drawings
Fig. 1 present device structural representation
Fig. 2 present device air path part structural representation
The specific embodiment
Shown in Fig. 1～2, the present invention includes smelting apparatus 1, suction pouring device 2 and air path part 3.
Described smelting apparatus 1 comprises: agitator 13, protective gas passage 14, heat insulation layer 15, radiation protective layer 16, crucible 17.Described agitator 13 is arranged on crucible 17 platforms, and protective gas passage 14 is arranged on crucible 17 platforms, agitator 13 is other, and heat insulation layer 15 places on the radiation protective layer 16, and heat insulation layer 15, radiation protective layer 16 place 17 mouthfuls of crucibles.
Described suction pouring device 2 comprises: dividing plate 4, seal washer 5, seal sleeve 6, pressing plate 7, formwork fixed cover 8, suspension hook 9, formwork 10, suspension ring 11, vacuum passage 12, stalk 18, backing plate 19.Described seal sleeve 6, stalk 18 and seal washer 5 all are arranged on the dividing plate 4, dividing plate 4 places on the backing plate 19 on the crucible 17, formwork fixed cover 8 is fixed on the dividing plate 4 by pressing plate 7, formwork 10 is fixed in the formwork fixed cover 8, suspension hook 9 and suspension ring 11 all are welded on the seal sleeve 6, link to each other in the vacuum passage 12 on the seal sleeve 6 and the air path part 3.
Described air path part 3 comprises: vacuum tank 20, vacuum meter 21, vavuum pump 22, stop valve 23,24, control valve 25, vacuum outlet 26 and exhaust outlet 27.Described vavuum pump 22 joins by stop valve 23 and vacuum tank 20, and vacuum outlet 26 is connected on the vacuum tank 20 by choke valve 25 and stop valve 24 with air exit 27, and vacuum meter 21 is connected on the vacuum tank 20 other pipelines.
The present device course of work comprises the installation of absorbing and casting device, melting and three work steps of suction pouring of composite, and wherein the installation of absorbing and casting device can be carried out simultaneously with the composite melting.Feed protective gas during the composite melting, and stir, the composite refining covers radiation protective layer and heat insulation layer after finishing, and backing plate is placed on the crucible platform.With mounted absorbing and casting device, by suspension hook or suspension ring lifting, be displaced on the smelting apparatus, stalk immerses in the Composite Melt, and dividing plate places on the backing plate.Open the control valve that is connected with vacuum passage, composite liquid enters formwork by stalk, keep vacuum, be full of formwork after, open stop valve and control valve fully, gas clean-up, metal liquid solidifies in formwork, after suction pouring finishes, close vacuum, open vacuum gas discharge valve, the lifting absorbing and casting device, continue to stir, realize the antigravity suction pouring of aluminum matrix composite, and then absorbing and casting device is installed, next type that is shaped realizes producing continuously.
Claims (4)
1, a kind of antigravity vacuum sucking cast apparatus for aluminium base composite material, comprise: smelting apparatus (1), suction pouring device (2), air path part (3), it is characterized in that, described smelting apparatus (1), comprise: agitator (13), protective gas passage (14), heat insulation layer (15), radiation protective layer (16), crucible (17), agitator (13), protective gas passage (14) are arranged on crucible (17) platform, heat insulation layer (15) places on the radiation protective layer (16), and heat insulation layer (15) and radiation protective layer (16) place crucible (17) mouth; Described suction pouring device (2), comprise: dividing plate (4), seal washer (5), seal sleeve (6), pressing plate (7), formwork fixed cover (8), suspension hook (9), formwork (10), suspension ring (11), vacuum passage (12), stalk (18), backing plate (19), seal sleeve (6), stalk (18) and seal washer (5) all are arranged on the dividing plate (4), dividing plate (4) places on the backing plate (19) on the crucible (17), formwork fixed cover (8) is fixed on the dividing plate (4) by pressing plate (7), formwork (10) is fixed in the formwork fixed cover (8), suspension hook (9) and suspension ring (11) all are welded on the seal sleeve (6), and vacuum passage (12) links to each other with air path part (3); Described air path part (3), comprise: vacuum tank (20), vacuum meter (21), vavuum pump (22), stop valve (23) and (24), control valve (25), vacuum outlet (26) and exhaust outlet (27), vavuum pump (22) joins by stop valve (23) and vacuum tank (20), vacuum outlet (26) is connected on the vacuum tank (20) by choke valve (25) and stop valve (24) with air exit (27), vacuum meter (21) is connected on the other pipeline of vacuum tank (20), and vacuum outlet (26) links to each other with empty passage (12).
2, antigravity vacuum sucking cast apparatus for aluminium base composite material according to claim 1 is characterized in that, described formwork (10) is the fusible pattern formwork, and the formwork material is quartzy, sial series refractory material.
3, antigravity vacuum sucking cast apparatus for aluminium base composite material according to claim 1 is characterized in that, backing plate (19), crucible (17), dividing plate (4), and the three connects for on-fixed.
4, antigravity vacuum sucking cast apparatus for aluminium base composite material according to claim 1 is characterized in that, vacuum passage (12) is arranged on the seal sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100298859A CN1317094C (en) | 2005-09-22 | 2005-09-22 | Antigravity vacuum sucking cast apparatus for aluminium base composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100298859A CN1317094C (en) | 2005-09-22 | 2005-09-22 | Antigravity vacuum sucking cast apparatus for aluminium base composite material |
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| Publication Number | Publication Date |
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| CN1739889A CN1739889A (en) | 2006-03-01 |
| CN1317094C true CN1317094C (en) | 2007-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100298859A Expired - Fee Related CN1317094C (en) | 2005-09-22 | 2005-09-22 | Antigravity vacuum sucking cast apparatus for aluminium base composite material |
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| CN102398014A (en) * | 2011-11-15 | 2012-04-04 | 上海交通大学 | Casting device of low tension fine grain and method thereof |
| CN106424662B (en) * | 2016-11-25 | 2018-07-10 | 西北有色金属研究院 | A kind of anti-gravity suction pouring prepares the device and method of cobalt-base alloy welding wire |
| 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 |
| US10562095B2 (en) | 2017-06-09 | 2020-02-18 | Metal Casting Technology, Inc. | Method and apparatus for counter-gravity mold filling |
| CN109317642A (en) * | 2017-07-31 | 2019-02-12 | 科华控股股份有限公司 | The understructure of suction pouring room promotion high temperature resistance |
| CN109807309A (en) * | 2017-11-20 | 2019-05-28 | 科华控股股份有限公司 | A kind of suction pouring room nitrogen charging explosion-protection equipment |
| CN108097922A (en) * | 2017-12-20 | 2018-06-01 | 西北工业大学 | A kind of metal-base composites vacuum low-pressure casting device and casting method |
| CN110802216A (en) * | 2018-08-06 | 2020-02-18 | 科华控股股份有限公司 | Anti-gravity vacuum suction casting heat-resistant cast steel casting process and device |
| CN109365783B (en) * | 2018-12-03 | 2024-03-26 | 湖南文昌新材科技股份有限公司 | Vacuum suction casting production system for composite material |
| CN110640130B (en) * | 2019-08-30 | 2021-06-08 | 益阳鸿源稀土有限责任公司 | Rare earth metal molten liquid pouring system |
| IT201900018053A1 (en) * | 2019-10-07 | 2021-04-07 | Euromac Srl | Apparatus and procedure for the semi-solid state casting and molding of objects in brass, bronze, aluminum alloys, magnesium and light alloys and the like. |
| CN113996777B (en) * | 2021-09-29 | 2023-01-03 | 山西江淮重工有限责任公司 | Alloy casting forming device and method thereof |
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