CN201427182Y - Semi-solid rheoforming device of metal parts - Google Patents
Semi-solid rheoforming device of metal parts Download PDFInfo
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- CN201427182Y CN201427182Y CN2009201115859U CN200920111585U CN201427182Y CN 201427182 Y CN201427182 Y CN 201427182Y CN 2009201115859 U CN2009201115859 U CN 2009201115859U CN 200920111585 U CN200920111585 U CN 200920111585U CN 201427182 Y CN201427182 Y CN 201427182Y
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Abstract
The utility model provides a semi-solid rheoforming device of metal parts, which is characterized by the inclusion of a concreting system, a melt cooling system, a cooling plate regulating mechanism,a slurry heat-insulating system, a structure support sealing system, a multi-channel temperature monitoring system, an inert gas protection system and a pressure casting system. The utility model solves the problems of the difficult conservation and transportation of the slurry during the semi-solid rheoforming process, and realizes the integration of the semi-solid rheological slurry and formingoperations; the space can be saved due to the simple and compact the structure of the equipment, and the original pressure casting equipment is not required to be altered; the pulping technology is simple, has short process and can be monitored conveniently; the gas is protected effectively, the oxidation is avoided, and the quality of the melt is improved; the factors influencing the heat exchange of the system are reduced, the control of the thermal balance of the system is facilitated, and the accuracy and stability of the temperature control are improved; the thermal consumption is reduced, and the energy conservation and consumption reduction are facilitated; and the device is especially suitable for the small and medium enterprises and has wide application prospect, and the process includes the semi-solid performing and rheological pressure casting of the aluminum alloy, the magnesium alloy and the tin alloy.
Description
Technical field
The utility model belongs to the metalworking technology field, particularly a kind of device of metal parts semi-solid rheological molding.
Background technology
The semi-solid-state metal processing method is owing to have high-quality, efficiently reach characteristics such as near-net-shape, thereby becomes one of near-net-shape technology of tool development prospect.The semi-solid-state shaping mode comprises two kinds of rheological molding and thixotropic formings, what use success at present is the thixotropic forming technology, but compare with rheological molding, there is following obvious defects in thixotropic forming technology: 1) the thixotropic forming flow process is longer, thereby production cost height, energy consumption height, efficient are low; 2) post bake is had relatively high expectations to equipment; And the blank surface oxidation is serious; 3) the solid phase composition can not be too low in the blank after the post bake, otherwise can't carry, and this brings difficulty to the moulding complex parts; 4) the not only strict control semisolid of thixotroping technology pulping process, guarantee that the blank quality is good, also in post bake process, strictness control technological parameter, obtain stable, the good microstructure of semisolid of tissue topography of fraction solid, this makes the uncertain factor in the forming process increase, the increase of controlling cost.By contrast, semi-solid rheological molding has that flow process is shorter, low energy, waste material in time reclaim, advantage such as accepted by medium-sized and small enterprises easilier, thereby becomes the semi-solid-state shaping field and have much one of technology of development prospect.
In recent years, the countries in the world scholar has carried out big quantity research to rheological molding, has released a series of rheological molding devices.These inventions can be divided into following a few class: 1) mechanical agitation slurrying formula rheological molding technology, the casting technology is penetrated in the method and recent single-screw, the double helix rheology of inventing that comprise mechanical agitation slurrying the earliest, but in actual production, the mechanical stirring device that has only is the earliest necessarily used, the casting technology is penetrated in rheology because the screw rod operating mode is poor, consume greatly, reasons such as life-span weak point also are in the equipment development stage.2) electromagnetic agitation slurrying formula rheological molding technology, the maximum characteristics of this type of device are to be the power that stirs with electromagnetic force dessert machine tool masterpiece, do not have stirring rod to contact with the direct of molten metal, thereby to the pollution minimizing of alloy, but there is the equipment complexity, shortcoming such as shearing force is little.3) near liquidus cast-type rheological molding technology, this method is a kind of new rheological molding technology of developed recently, and its process route is low hot pouring, under the effect of convection current and Quench, promote the alloy melt forming core, and strict control temperature, the survival rate of raising nucleus makes alloy liquid be cooled to two-phase section rapidly then, obtain a large amount of free crystal grain, this class methods technology is simple, cost is low, but very high to temperature controlled precision and uniformity requirement, thereby the practical application difficulty.4) ultrasonic vibration slurrying formula rheological molding technology, its principle is to utilize the process of setting of ultrasonic wave disturbance metal, crystal grain thinning, thereby obtain non-dendrite metal paste, this class methods technology is simple, and is little to the pollution of melt and environment, it is a kind of quite promising semisolid pulping way, but because the equipment complexity, reason such as technical conditions are immature also is not applied in actual production.5) cooling body legal system slurry rheological technique, this class methods equipment is simple, and flow process is short, and cost is low, particularly is suitable for the semisolid pulping technique of high temperature alloy, but has oxidation, air-breathing problem such as serious in light-alloy.
In recent years, people such as the Yang Xiang outstanding person of University Of Nanchang have developed the low-rotating-duct pulping process, reached good effect, its technological principle is near liquidus curve alloy liquid to be applied local Quench+mix, form a large amount of free nucleus, the later stage is reduced the cooldown rate of alloy liquid by insulation, prevent that grain growth from becoming branch, thereby obtain tiny, the spherical or subglobose microstructure of semisolid of primary phase crystal grain.The key technology of its technology is will obtain abundant free nucleus early stage in melt, and the later stage is controlled by temperature, prevents nascent nuclei growth.This method has a good application prospect, but owing to rotate the existence of pipe, makes the equipment relative complex.Therefore, the utility model is designed the simple pulping equipment of a cover.
Summary of the invention
The purpose of this utility model provides a kind of device of metal parts semi-solid rheological molding, and it is combined with existing die casting equipment, produces the semi-solid rheological die casting of function admirable.
The formation of the device of metal parts semi-solid rheological molding of the present utility model is: be made up of running gate system, melt cooling system, coldplate governor motion, slurry heat-insulation system, support structure sealing system, multichannel temperature monitoring system, inert gas shielding system, die-casting system; Running gate system is by watering cup and placing graphite plunger, thermocouple in the cup to constitute; The melt cooling system is made of cooling water outlet in a plurality of coldplates and the coldplate and water inlet; The coldplate governor motion is connected and composed by rolling bearing, conical tooth wheels and control rocking handle; The slurry heat-insulation system is made of insulation crucible and outer heater coil, the crucible guard box of crucible; The support structure sealing system is made of the sideboard and the case lid of casing, bottom half; The multichannel temperature monitoring system is by placing the thermocouple that waters in cup, coldplate, the crucible and temperature acquisition and Displaying Meter to constitute respectively; The inert gas shielding system be on the casing and case lid on air inlet pipe and escape pipe; Die-casting system is made of the die casting machine tup of forming parts mould, die casting machine barrel and Qi Nei; Melt cooling body, slurry heat-insulation system are arranged in the support structure closed system, and are connected with the temperature acquisition and the Displaying Meter of casing outside, and running gate system is arranged on the case lid, and the heat-insulation system of slurry places the bottom of casing and is connected with die-casting system.
The support structure closed system can be hollow cylinder or square column structure, and material can be various metals.
Coldplate length in the cooling system of melt is at 30mm～200mm, and interface shape can be plate, S type, U type, V-type, waveform etc.; Material can be the good various metals of thermal conductivity; The angle of plate and horizontal direction is adjustable in 5～80 ° of scopes; The quantity of coldplate is at 2～15; The cooling medium of plate can be water, wet goods good fluidity, good cooling results, cheapness, free of contamination various media.
The gas that the inert gas shielding system is provided can be various alloy melt quality, cheap, the free of contamination gases of can not reducing.
The course of work is as follows:
1, alloy melt flows into from the cooler bin upper end with uniform temperature, successively by the cooling system in the case, under the double action of Quench and fluid shearing, forms a large amount of free nucleus in melt under the effect of gravity;
2, the melt that comprises a large amount of free nucleus, flow into cool-bag at the bottom of the case from cooling system in, in the semi-solid temperature interval, behind the insulation certain hour, can obtain the microstructure of semisolid of primary phase rounding;
3, after temperature drops to predetermined temperature, open the flashboard at the bottom of the case, the semi solid slurry for preparing flows into the die casting machine barrel, is pressed into part.
The utility model compared with prior art has following clear superiority:
1, solves the problem that slurry is preserved in the semi-solid rheological molding process, transportation is difficult, realized semi-solid rheological slurrying and forming integrated;
2, device structure is simple, tight short, saves the space, and need not make any change to original die casting equipment;
3, pulping process is simple, and flow process is short, is convenient to monitoring; Be particularly suitable for medium-sized and small enterprises;
4, slurrying is carried out in a closed environment, can carry out gas shield effectively, and anti-oxidation improves melt quality;
5, slurrying is carried out in an airtight environment, thereby influences the factor minimizing of system's heat exchange, helps the thermally equilibrated control of system, helps improving temperature controlled precision and stability; And reduced heat waste, helped saving energy and reduce the cost;
6, application prospect is extensive, comprises aluminium alloy, magnesium alloy, ashbury metal semisolid base and rheo-diecasting.
Description of drawings
Fig. 1 is the apparatus structure schematic diagram of metal parts semi-solid rheological molding of the present utility model.
Fig. 2 is the structural representation behind the utility model adds little vibrating device.
Among the figure:
Running gate system: 1-waters cup, 24-graphite plunger, 25-thermocouple;
Melt cooling system: 3-hang plate (coldplate), 6-hang plate, 8-cooling water outlet, 9-cooling water intake, 11-hang plate, 12-hang plate;
The coldplate governor motion: 5-rolling bearing, 7-conical tooth wheels, 10-control rocking handle;
Slurry heat-insulation system: 14-insulation crucible, 15-crucible guard box, 20-heater coil;
Support structure sealing system: 4-casing, 21-sideboard, 22-turning joint, 26-case lid;
Multichannel temperature monitoring system: 13-thermocouple, 25-thermocouple, 27-spot welded type thermocouple, 28-spot welded type thermocouple, 29-spot welded type thermocouple, 30-spot welded type thermocouple, 31-temperature acquisition and Displaying Meter;
Inert gas shielding system: 16-air inlet pipe, 23-escape pipe; Die-casting system: 17-die casting machine tup, 18-mold cavity, 19-die casting machine barrel.
The specific embodiment
As shown in Figure 1, the utility model is a semisolid pulping device with space case structure.Casing 4 is made by the metal with certain wall thickness, and its shape can be cuboid, cube or cylinder, and its upper end is covered by case lid 26, and case lid is connected with casing 4 by hinge 22, and can realize opening and closing operation; The casing lower end is by the position realization of sideboard 21 and the location of the charging aperture of die casting machine barrel 19, and whole box body places die casting machine barrel top.Side near tank wall on the case lid 26 has the reservation through hole, and size is suitable with the bottom external diameter that waters cup 1, places in this preformed hole of case lid 26 when watering cup 1 work.Water cup 1 bottom and have aperture, plunger 24 closely cooperates with this aperture.Inclination coldplate 3,6,11,12 places the place of different directions on the tank wall and height respectively, makes these several plates become space bridging type but is not in contact with one another, and the concrete material of hang plate and spatial relation are decided according to alloy fluidity matter and required cooling effect.Every block of hang plate links to each other with rocking bar 10 by conical tooth wheels 7 all by placing the rolling bearing 5 in the box body wall to link to each other with casing, and rotating rocker 10 can be controlled the angle of inclination of hang plate.Hang plate hollow and certain thickness is arranged, Kong inner chamber is equipped with two water pipes therein, stretch into distance bigger be water inlet pipe 9, that only stretches into the end is outlet pipe 8, adjusts the cooling capacity of hang plate by the control quantity of circulating water; In wall thickness between cooling water and the outer surface part spot welded type thermocouple 27,28,29,30 is housed, collects with demonstration machine 31 by temperature and monitor the temperature variations of alloy liquid when on the plate face, flowing.Insulation crucible 14 places in the crucible guard box 15 of sideboard 21 tops, and the temperature of alloy liquid is by thermocouple 13 monitorings in the crucible.Protective gas is pressed into from the air inlet pipe 16 of casing 4 bottoms, is full of after the whole box body from being positioned on the case lid 26 gas outlet 23 to overflow.
In Fig. 2, all increased little vibrating device 31,32,33,34 in each cooling system, this device is positioned at the position that can not contact with alloy liquid on the hang plate, and little vibrating device is by micromachine control (not drawing among the figure).
The function that the using method of this device and each parts are realized is as follows:
Pour into after the alloy refining treatment can be quantitative water the cup 1 in, water in the cup melt temperature by thermocouple 25 monitorings, when treating that temperature reaches predetermined value, mention plunger 24, melt flows out also successively by cooling swash plate 3 from watering a glass lower end outlet under the gravity effect, 6,11,12, thereby make the heat exchange action of the fixed angle of hang plate by control rocking handle 10 at certain certain value control alloy liquid and plate, make melt when arriving last piece swash plate 12 ends, temperature is controlled in following 10 ℃ of the alloy liquid phase line, and temperature is by the point type thermocouple 27 that is embedded in the wooden partition, 28,29,30 monitorings; In the cool-bag 14 by induction coil 20 heating at the bottom of the melt-flow cartonning, and by thermocouple 13 thermometrics, strict control cooldown rate prevents that free nuclei growth from becoming dendrite, guarantees that nucleus is tiny, rounding; After treating that slurry temperature arrives predetermined value in the cool-bag, open the flashboard 21 of container bottom, the alloy semi solid slurry enters die casting machine barrel 19, under the propelling of die casting machine tup 17, and quick loading mould cavity, the rheo-diecasting part of formation compact structure; The Quench of melt and insulation are to carry out in airtight cooler bin 4, fill argon gas or nitrogen by appendix 16,23 in the case, carry out gas shield, prevent melt oxidation; The cover plate 26 of cooler bin upper end is connected with casing 4 by hinge 22, when closing can with the casing tight closure, also can open, cleaning is the interior metal fillings of case after the production repeatedly;
Fig. 2 is for adding structural representation of the present utility model behind little vibrating device, compared to Figure 1, this device has all been installed little vibrating device 31,32,33,34 on every coldplate 3,6,11,12, it makes method similar to Fig. 1, difference is, alloy melt will be successively by four cooling swash plates 3,6,11,12 that have little vibrating device 31,32,33,34 under the gravity effect, by vibration aggravation forming core and broken dendrite effect.
Claims (4)
1, a kind of semi-solid rheological molding device of metal parts is characterized in that: be made up of running gate system, melt cooling system, coldplate governor motion, slurry heat-insulation system, support structure sealing system, multichannel temperature monitoring system, inert gas shielding system, die-casting system; Running gate system is by watering cup and placing graphite plunger, thermocouple in the cup to constitute; The melt cooling system is made of cooling water outlet in a plurality of coldplates and the coldplate and water inlet; The coldplate governor motion is connected and composed by rolling bearing, conical tooth wheels and control rocking handle; The slurry heat-insulation system is made of insulation crucible and outer heater coil, the crucible guard box of crucible; The support structure sealing system is made of the sideboard and the case lid of casing, bottom half; The multichannel temperature monitoring system is by placing the thermocouple that waters in cup, coldplate, the crucible and temperature acquisition and Displaying Meter to constitute respectively; The inert gas shielding system be on the casing and case lid on air inlet pipe and escape pipe; Die-casting system is made of the die casting machine tup of forming parts mould, die casting machine barrel and Qi Nei; Melt cooling body, slurry heat-insulation system are arranged in the support structure closed system, and are connected with the temperature acquisition and the Displaying Meter of casing outside, and running gate system is arranged on the case lid, and the heat-insulation system of slurry places the bottom of casing and is connected with die-casting system.
2, the semi-solid rheological molding device of metal parts according to claim 1 is characterized in that: the support structure closed system is hollow cylinder or square column structure.
3, the semi-solid rheological molding device of metal parts according to claim 1 is characterized in that: the coldplate length in the cooling system of melt is at 30mm～200mm, and interface shape is plate, S type, U type, V-type, waveform; The angle of plate and horizontal direction is in 5～80 ° of scopes; The quantity of coldplate is at 2～15.
4, the semi-solid rheological molding device of metal parts according to claim 1 is characterized in that: little vibrating device all has been installed on every coldplate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201115859U CN201427182Y (en) | 2009-06-30 | 2009-06-30 | Semi-solid rheoforming device of metal parts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201115859U CN201427182Y (en) | 2009-06-30 | 2009-06-30 | Semi-solid rheoforming device of metal parts |
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| CN201427182Y true CN201427182Y (en) | 2010-03-24 |
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| CN2009201115859U Expired - Fee Related CN201427182Y (en) | 2009-06-30 | 2009-06-30 | Semi-solid rheoforming device of metal parts |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722146A (en) * | 2012-10-12 | 2014-04-16 | 天津爱田汽车部件有限公司 | Flowing deformation die-casting technique for producing automobile air-condition compressor swash plate |
| CN112893805A (en) * | 2021-01-15 | 2021-06-04 | 广东铭利达科技有限公司 | Semi-solid rheologic die casting device and die casting method thereof |
-
2009
- 2009-06-30 CN CN2009201115859U patent/CN201427182Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722146A (en) * | 2012-10-12 | 2014-04-16 | 天津爱田汽车部件有限公司 | Flowing deformation die-casting technique for producing automobile air-condition compressor swash plate |
| CN112893805A (en) * | 2021-01-15 | 2021-06-04 | 广东铭利达科技有限公司 | Semi-solid rheologic die casting device and die casting method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20120630 |