CN201442085U - Directional solidification casting device for titanium alloy missile cabins - Google Patents
Directional solidification casting device for titanium alloy missile cabins Download PDFInfo
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- CN201442085U CN201442085U CN2008201768649U CN200820176864U CN201442085U CN 201442085 U CN201442085 U CN 201442085U CN 2008201768649 U CN2008201768649 U CN 2008201768649U CN 200820176864 U CN200820176864 U CN 200820176864U CN 201442085 U CN201442085 U CN 201442085U
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Abstract
The utility model relates to a casting device, in particular to a casting device for titanium alloy missile cabins. As the mechanical performance and the metallurgy quality of titanium alloy missile cabins manufactured in China are still inferior to other countries, the utility model provides a directional solidification casting device for titanium alloy missile cabins for improving the solidification mode, wherein a crystalline structure is replaced by thin and long fringe crystals from equiax crystals for improving the mechanical performance and metallurgy quality. The key for realizing the utility model lies in the manufacture of a formwork which is realized through a high-density graphite formwork which is precisely machined and a formwork formed on a metal mold which is precisely machined. And a precise casting formwork is manufactured through assembling an internal formwork and an external formwork.
Description
Affiliated technical field
The utility model relates to a kind of Casting Equipment, particularly relates to the Casting Equipment of titanium alloy missile bay body.
Background technology
Cast titanium alloy missile bay body is in China's in recent years thing just; because the titanium alloy chemical property is very active; thereby must adopt the special very high mold material of stability; as the graphite model of hand-rodding or graphite shell mould etc., in inert gas (argon or nitrogen) protection induction fusion casting equipment, cast and form.Inert gas shielding induction fusion casting equipment mainly is made up of protection chamber, vacuum argon filling (nitrogen) system and induction skull crucible three parts.Vacuum argon filling (nitrogen) system is made up of oil diffusion pump, lobe pump, mechanical pump and argon filling (nitrogen) system.The induction skull crucible is made up of water jacketed copper crucible and Medium frequency induction coil; its equipment schematic diagram as shown in Figure 1, among the figure 1, spy on charging aperture, 2, the protection chamber; 3, induction skull crucible; 4, induction skull crucible rotating shaft, 5, protect outdoor rotation hand wheel, 6, tundish; 7, hand-rodding graphite model (or claiming formwork); 8, vacuum valve, 9, the inert gas valve, 10, peep-hole.
Equipment operating process: (a) open protection chamber loam cake, install hand-rodding graphite model (7) and tundish (6), the titanium alloy furnace charge is packed into respond in the skull crucible (3), close protection chamber loam cake; (b) open vacuum valve (8) and vacuumize, continue to vacuumize maintenance vacuum after reaching vacuum; (c) rotation protection outdoor rotation hand wheel (5) after titanium alloy smelting reaches requirement, the rotary inductive skull crucible is cast to titanium alloy in the tundish (6).After calm certain hour treats that bubble and suspension float, pull up the plunger of tundish (6), alloy is poured in the graphite model (7), close vacuum valve (8) and Open valve (9) this moment, feed inert gas, allow foundry goods under inert gas pressure, solidify.After foundry goods cooled off naturally, valve-off (9) was opened protection chamber (2), takes out model (7) and tundish (6), and shake out takes out foundry goods.Its casting technique overall process is as follows: the system graphite mo(u)ld, and------------------------------------cabin body fine finishining---cabin body final inspection is handled in cabin body vacuum destressing to radiological survey X to high temperature insostatic pressing (HIP) to clear shell to the group mould in cabin body roughing in dimensional gaughing in fluorescent inspection for blast, pickling in black annealing in the melting casting.Make a general survey of above technological process, the author thinks that this technology remains casting mold casting, cooling naturally.Such type of cooling remains the cooling earlier of thin-walled place, and reinforcement cools off behind the place.Be difficult to avoid the reinforcement place to produce shrinkage defect, its crystal grain is for waiting axle shape in addition.These may be that China's missile bay body performance lags behind external reason for a long time.For titanium alloy cabin body,, be still limited to the raising of mechanical property though follow-up high temperature insostatic pressing (HIP) operation is arranged.Make a general survey of at casting field, improve casting quality, have only directional solidification the most effective in order to overcome shrinkage defect.The fifties, US military proposed with the molten steel of casting in the dewax precise casting mould shell, realize directional solidification, the aeroturbine blade that casts out, mechanical performance and heat resistance have been improved significantly, improved the serviceability temperature of engine, thereby improved the Mach number of aircraft, surpassed the turbo blade of die forging, document sees reference.But the range of application of this technology also is limited, can only be used for small-sized foundry goods, can not be used for, heavy castings.Because of the intensity of wax material limited, in, large-scale cured mould is difficult to bear the effect of technical process external force and be out of shape or damaged.In as the missile bay body, to adopt above-mentioned dewax hot investment casting directional solidification be impossible at all to large thin wall casting.
Summary of the invention
In order to overcome the not high deficiency that often has rarefaction defect to occur of present China's titanium alloy missile bay body mechanical performance; the utility model proposes: " titanium alloy missile bay body directional solidification casting equipment "; this equipment is that with the difference of Fig. 1 equipment this equipment has two protection chambers, wherein is provided with heat tracing zone, cooling zone and draws bed die in addition.Before casting not, formwork is arranged on draws on the bed die, is within the heat tracing zone its temperature more than alloy melting point 20 ℃.When alloy water cast among the formwork after, draw that bed die drives formwork and foundry goods drops to following cooling zone with certain speed.The foundry goods bottom is introduced into the cooling zone like this, thereby solidifies earlier, is cooled to top then gradually, and final whole foundry goods has been realized directional solidification.Because foundry goods bottom is introduced into the cooling zone, thereby its first solidification and crystallization, these crystal grain, move on the cooling zone along with formwork descends as crystal seed, and they are upwards elongation constantly, and the result is grown to serve as from bottom to top elongated column crystal at whole foundry goods.Crystal boundary as the weak spot of metal material all is distributed between the column crystal, is parallel to the foundry goods axis, and horizontal crystal boundary greatly reduces, thereby the mechanical performance of foundry goods macroscopic view increases substantially.But the dewax molding shell method of traditional directional solidification is impracticable for the missile bay body, and therefore how the molding shell is a key for the present invention.Yet consider that the missile bay body is a thin-walled cartridge type foundry goods, its formwork is inevitable to be made of inside and outside formwork (two cartridge type spares) and bed die, and because of the missile bay body thickness has only 5-8mm, thereby the width of bed die also has only 5-8mm.So the formwork of missile bay body mainly is inside and outside formwork, bed die is very little, makes easily.
In order to solve the making problem of formwork, and realize the directional solidification of missile bay body, the technical scheme that the utility model adopted is as follows:
1, adopts other ways (non-dewax molding shell method) to make two cartridge type formworks respectively, then they are being sleeved on together, make complete formwork.
2, be processed into inside and outside two formworks through precision optical machinery again with the graphite blank of compacting consolidation, formwork bottom car goes out a ring flange within it, so as to forming bed die, then these two formworks is sleeved on together, forms complete formwork.
3, on two precision machined metal dies (inside and outside each), be coated with several layers of hot investment casting slurry and on every layer of slurry spreading one deck quartz sand aggregate, take off after the curing, then get each one on inside and outside finish cast die shell, be coated with slurry on the flange under the interior finish cast die shell then, the external mold valve jacket is loaded on outside it, the bottom bond together, just complete formwork.
4, heating furnace is set inside and outside formwork, has been heated to more than the alloy melting point 20 ℃, to avoid liquid metals casting unordered solidifying afterwards in order to formwork before casting.
5, in order to guarantee the liquid metals oriented rapid solidification, water jet in water ring reaches outside being provided with under heating furnace is formed the water spray cooling zone.Behind the water spray cooling zone below formwork drops to certain speed, liquid metals is wherein from bottom to top successively cooled off, and realizes directional solidification.
6, must avoid following water spray splash to arrive top heat tracing zone in order to ensure the metal directional solidification, will avoid the heat width of cloth of heat tracing zone to penetrate or be transmitted to following next simultaneously.The present invention is provided with fire-resistant felt pan between heat tracing zone and water spray cooling zone for this reason, and both are kept apart.
7, for the formwork after guaranteeing to cast can drop to the water spray cooling zone by heat tracing zone with certain speed, the present invention is installed in it and draws on the bed die (25), and the latter is being carried the former and dropped to the cooling zone with certain speed.
8, in order to reach the purpose that slewing is solidified, the interior water jet (23) of this work welds together with following heavy wall water-supply-pipe, and by the latter it is held in and draws the heart among the bed die.
The beneficial effects of the utility model are: can thoroughly change the solidification mode under former technology (Fig. 1) condition, realize directional solidification, stop the missile bay body and be difficult to the shrinkage defect avoided for a long time, make the crystal structure of missile bay body change into column crystal by equiax crystal, and its orientation is consistent with missile bay body axis direction, thereby can significantly improve σ b, δ % and fatigue strength.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is a titanium alloy missile bay body production equipment schematic diagram before the utility model proposes.
Fig. 2 is the equipment schematic diagram of the utility model the 1st embodiment.
Fig. 3 is the equipment schematic diagram of the utility model the 2nd embodiment.
Fig. 4 is the core box installation diagram, and it is the mould of finish cast die shell in making among Fig. 3 (second embodiment).
Fig. 5 is the core box body figure of Fig. 4.
Fig. 6 is the last lower flange figure of Fig. 4.
Fig. 7 is reinforcement and the frustum cone structure figure of Fig. 4.
Fig. 8 is the cylindrical model figure that Fig. 3 (second embodiment) makes outer finish cast die shell.
Among Fig. 2: 1; spy on charging aperture, 2; the protection chamber, 3; the induction skull crucible; 4; rotating shaft, 5; protect outdoor rotation hand wheel, 6; tundish; 43; outer graphite formwork, 8; vacuum valve, 9; the inert gas valve; 10; peep-hole, 11; the dead head cup, 44; interior graphite formwork; 13; die cavity; 14; the externally heated oven heat-insulation layer, 15; the externally heated oven shell, 16; the internally heated oven fireproof lining; 17; the center fixation pillar; 18; the externally heated oven calandria, 19; the internally heated oven calandria, 20; interior fire-resistant felt pan; 21; outer fire-resistant felt pan; 22; outer water ring, 23; interior water jet, 24; spout hole; 25; draw bed die; 26; under protect the chamber, 27; water discharging valve, 28; screw; 29; airway.
The specific embodiment
Among Fig. 2; spy on charging aperture (1) the melting situation in the stove of can spying on and to add a small amount of easily alloying element of scaling loss again; the cylindrical iron-clad that protection chamber (2) is welded for the 10mm steel plate; induction skull crucible (3) is made up of water jacketed copper crucible and induction coil; rotating shaft (4) is the holder of whole induction skull crucible; protect outdoor rotation hand wheel (5) to be installed in part outside the induction skull crucible rotating shaft protection chamber; can rotate this during operation takes turns and the induction skull crucible is tilted liquid metals is poured in the tundish of its below; tundish (6) is the rectangle metal trough; its liner has the oxide ceramic refractory; after titanium alloy pours into wherein through the calmness of certain hour; bubble and field trash are floated to after the upper surface; be poured into again in the dead head cup (11) of below; outer graphite formwork (43) is the high-density graphite cylinder of inner surface finish turning, and its inner surface diameter is consistent with the missile bay outer surface diameter.After vacuum valve (8) is opened, can be evacuated two protection chambers up and down, after it is closed, can keep vacuum.After opening, inert gas valve (9) can be full of inert gas to two protection chambers up and down.Peep-hole (10) can be observed the cast situation, and dead head cup (11) is made for common graphite, and interior graphite model (44) is that high-density graphite finish turning, finish-milling form, and its outer surface has groove and round pool anyhow; Die cavity (13) is the 5-6mm close clearance; Externally heated oven heat-insulation layer (14) is that fire clay is fired and formed, and has fireproof lining, Wen Cheng outer calandria (18) on it; Externally heated oven furnace shell (15) is that the 5mm steel plate is welded; Internally heated oven fireproof lining (16) is that cylindric refractory sintering forms, its outside has bracket supports interior calandria (19), assign on the center fixation pillar (17), interior externally heated oven has just constituted heat tracing zone, guarantees that the graphite model temperature is higher than on the alloy melting point.And keep 20 ℃ the degree of superheat.Center fixation pillar (17) is that the heat resisting steel bar is through machining and be welded on the interior water jet (23); Externally heated oven calandria (18) can adopt high frequency circle or helical form silicon carbon-point; Internally heated oven calandria (19) also can adopt high frequency circle or helical form silicon carbon-point; Interior fire-resistant felt pan (20) forms for the aluminosilicate refractory fiber braiding, be cut into washer-shaped, its center borehole jack is on the center fixation pillar, cut little gap on the excircle, so that be the downsagging distortion, its effect is to prevent that following water spray from entering in the top heating furnace, and outer fire-resistant felt pan (21) also aluminosilicate refractory fiber braiding forms, be cut into washer-shaped, its purpose also is to prevent that following water spray from entering in the top heating furnace; Outer water ring (22) is the ring-type water injector, and heat-resisting steel sheet and plate is welded into, and its cross section is a rectangle, number row aperture is arranged on its inner surface, be installed in and draw outside the bed die (25) so that spray cooling fluid to the latter and outer graphite formwork (43), cooling fluid adopts-20 ℃ salt solution, so that the increase cooling effect; Interior water jet (23) is welded under the center fixation pillar (17), is a cylindrical shape heat resisting steel container, and number row aperture is arranged on the barrel surface, and-20 ℃ of cooling fluids are entered wherein by following pipe fitting, sprays to by aperture and draws bed die (25) and interior graphite model (44); Spout hole (24) is to be drilled in 4 big holes of drawing on the bed die (25), so that cooling water flow out of of interior water jet (23) ejection drawn outside the bed die (25), drops down to the below, flows out by water valve (27) and protects down outside the chamber (26); The revolving body of drawing bed die (25) and be stainless steel car system is part in addition, its top-supported outer graphite formwork (43) and its below of interior graphite formwork (44) is connecting protection chamber (26) derivation mechanism in addition, the startup derivation mechanism can drive it and move up and down, and also drives inside and outside graphite formwork simultaneously and moves up and down; Under protect chamber (26) to make to be positioned under the former protection chamber (2) for 10mm corrosion resistant plate welding, so claim to protect down the chamber; Water discharging valve (27) is to control water valve automatically, its role is to control down the degree of depth of bottom, protection chamber (26) cooling water.It is just opened when it reaches certain depth, discharges these cooling waters; Otherwise cooling water is too shallow, and when inert gas might be overflowed thus, this valve was closed automatically; Screw (28) is installed in down on the ring flange of protection chamber, and its effect is that handle links together two protection chambers up and down, becomes an airtight integral body; Airway (29), its effect are that two protection chamber air-flows are unobstructed about keeping.
Equipment operating process: a) open protection chamber (2) loam cake; the titanium alloy furnace charge pack into the induction skull crucible in; make and draw bed die (25) upper surface and rise to protection chamber (2) base plate plane, internally heated oven fireproof lining (16) and in calandria (19) assign on the center fixation pillar (17).B) inside and outside graphite formwork (44,43) and dead head cup (11) are installed in the top of drawing bed die (25), externally heated oven (14,15,18) is installed in outside the outer graphite formwork (43), install tundish (6) again.C) tightening screw (28), to make up and down the chamber of protection form a sealing whole, opens vacuum valve (8) and make up and down that the chamber of protection vacuumizes simultaneously, reach vacuum after, continue to vacuumize, keep vacuum.D) open induction skull crucible (3) beginning molten alloy, open externally heated oven (18,19) in the model afterwards again.E) when titanium alloy smelting in induction skull crucible (3) qualified and inside and outside after graphite formwork (43,44) temperature reaches a certain degree of superheat more than the alloy melting point; the beginning cast alloys is in tundish (6); when opening plunger behind the calm therein certain hour of alloy alloy is poured in the dead head cup (11) and die cavity (13) of below; through behind the certain hour; close vacuum valve (8) and open inert gas valve (9), making up and down, the chamber of protection is full of inert gas.F) start ejector below inside and outside water injector (23,22) and the equipment and make and draw bed die (25) and inside and outside graphite formwork (43,44) draws with certain speed downwards, foundry goods is introduced gradually at heat tracing zone forces the cooling zone to realize directional solidification.Cooling procedure finishes in the time of under whole graphite formwork (43,44) drops to protection chamber (2) base plate.G) close inert gas valve (9); after treating whole device cooling; unload trip bolt (28); hang away top protection chamber (2), take away induction skull crucible (3) and externally heated oven (14,15,18) simultaneously; opening ejector then makes and draws bed die (25) and rise; inside and outside graphite formwork (43,44) is risen to down on the protection chamber (26), take off inside and outside graphite formwork (43,44) and foundry goods and internally heated oven (16,19), shake out finishes.As seen, inside and outside graphite formwork (43,44) enters following cooling zone by heat tracing zone with certain speed and has just realized directional solidification.The key points for operation of this work are: directional solidification under vacuum melting, vacuum pouring and the inert gas shielding.
Figure 3 shows that the 2nd embodiment, the difference of it and Fig. 2 (the 1st embodiment) be the outer graphite formwork (43) on Fig. 2 and in graphite formwork (44) be replaced by on Fig. 3 outer finish cast die shell (45) and in finish cast die shell (46), the equal indistinction of all the other mechanisms.
The characteristics of Fig. 3 of this work (the 2nd embodiment) are finish cast die shells in producing with master pattern, use the outer finish cast die shell of pole mould production, and then they are assembled into complete finish cast die shell.The shape that this work is implemented all to be based on the missile bay body is a fairly simple widely different commentaries on classics cylinder.The listed Fig. 4 in front, Fig. 5, Fig. 6, Fig. 7, mould and tool drawing shown in Figure 8 all are (the 2nd embodiment) that further specifies Fig. 3.Wherein Fig. 4, Fig. 5, Fig. 6, Fig. 7 are for making the die drawing of interior finish cast die shell, and Fig. 8 is for making the die drawing of outer finish cast die shell, and Fig. 4 is the core box installation diagram.
Among Fig. 4 30, the core box body, 31, upper flange, 32, lower flange, 33, the camber muscle, 34, straight muscle, 35, round platform a, 36, round platform b, 37, alignment pin, 38, screw.
Fig. 4 SMIS box body (30) is the main body of core box, be aluminum casting turning moulding, its structure is seen Fig. 5, as seen from the figure, it is with 10 M5 screws left and right sides two parts to be fitted together the cylindric core box body of formation, and there is upper flange (31) its top, lower flange (32) is equipped with in the below, straight muscle (34) is equipped with in its inside, camber muscle (33) and round platform a (35), round platform b (36) and pin (37), screw (38) etc.; Last lower flange (31,32) be aluminum casting through the turning moulding, the upper and lower port of finish cast die shell in its role is to form is on its structure is seen among Fig. 6, lower flange figure.Camber muscle (33) is that its structure of aluminium casting of turning moulding is seen Fig. 7, and this part cross section is trapezoidal as seen from the figure.Straight muscle (34) is that aluminum casting is shaped through milling, and the cross section is trapezoidal, fits together by two M5 screws and core box body, and screw cap is outside core box body (30).Round platform is that cast aluminium processes through milling and pincers worker, and wherein: round platform a goes to the bottom on being and is the trapezoidal round platform of circular arc; Round platform b is the same other subsidiary four the short muscle that have of round platform; Its center has the M10 screw to link together in order to the core box body (30) with the outside, and its detailed structure is seen Fig. 7, and the screw hole on alignment pin (37) and straight muscle, the arched ribs is seen Fig. 7.
Finish cast die shell operating process in the system: (a) core box is assembled as shown in Figure 4; (b) core box is put into the smart casting of high temperature wax material pot, make it fully be heated to high temperature after, pull core box out, it is stood on the ground grating on the wax material pot wax oil it on is freely dripped, then in core box, show left one deck wax material; (c) treat that core box is cooled to room temperature, after wax material solidifies, core box is lain on the iron plate, in essence casting slurry impouring core box with high purity graphite powder and bonding agent preparation, on iron plate, come rollback to move several times core box, make slurry even distribution one deck in core box, again core box is stood on the smart iron lattice plate of casting on the slurry tank, redundant sizing agent dripped get back in the slurry tank, then at the left one deck slurry of core box inner surface, spreading high purity graphite aggregate on this layer slurry again, treat its sclerosis after, just it is thick to get the interior about 1.5mm of finish cast die shell core of skim, and as above the method operation just gets the finish cast die shell of suitable thickness for several times.(d) to from core box, take out interior finish cast die shell, need earlier core box to be put in it is fully heated, make the wax material on the core box fully dissolve back taking-up core box, pull down the lock-screw of straight muscle (34), camber muscle (33) and two kinds of round platforms (35,36) then successively, lock-screw (38) between dismounting upper flange (31) and two the core box bodies (30), take off two core box bodies (30) then, take off straight muscle (5), arched ribs (4), round platform a and round platform b from interior finish cast die shell again, dismantle lower flange again, finish cast die shell in just getting.It is the cylinder of a bright and clean rough inner surface of outer surface, anyhow groove and hole, garden are arranged on the outer surface, so that reinforcement on the formation missile bay body and round platform chess piece etc., there is flange its below so that form the bed die [it is formed by lower flange (32)] of finish cast die shell.More than be the process of finish cast die shell in making, the instrument and the operating process of putting off until some time later the outer finish cast die shell of bright making below.
One, Fig. 8 is for making the cylinder mould schematic diagram of outer finish cast die shell.Among the figure: (39) cylindrical model body; (40) base plate; (41) be lamina tecti; (42) handle.
Among Fig. 8: cylindrical model body (39) processes through finish turning for after the aluminium sheet welding, and its external diameter φ is consistent with missile bay section diameter; Base plate (40) welds together for cylindrical plate and cylindrical model body (39); Lamina tecti (41) is a cylindrical plate, fits together with screw and cylindrical model body (39); Handle (42) is the aluminium rod handgrip that is welded on the lamina tecti (41), so that mention this cylindrical model.
Two, outer finish cast die shell manufacturing process: (a) mould shown in Figure 8, put into paraffin pot, after treating that it fully heats, taking-up stand in it on the iron lattice plate on paraffin pot, wax oil is freely dripped, and then its level is placed on the iron plate rolled, make its outer surface evenly remain one deck 2mm left and right sides cere.After treating that cere solidifies, it is dipped in the slurry of the same graphite powder modulation, it is stood on the iron lattice plate on the slurry tank, its surperficial left one deck slurry then, and then it is lain on the iron plate, roll several times back and forth, make its slurry more even.Spreading one deck high purity graphite aggregate thereon again, treat that it condenses after, then the outer finish cast die shell of skim.(b) on this basis, same operation then gets the outer finish cast die shell that thickness is fit to for several times; (c) after each layer sclerosis,, make its outer surface form the cylinder type of rule with its outer surface polishing finishing; (d) put it at last in the boiled water pot, treat that it fully heats after, cured film fully melts, and takes out from pot, takes off lamina tecti (41) from model on workbench, at last from finish cast die shell down and outside taking off.It is a cylindric formwork that inner surface is bright and clean, outer surface is coarse (it up and down all can't be blue).
Three, the assembling of inside and outside finish cast die shell: the lower flange of interior finish cast die shell is coated with slurry,, and regulate crack between the two outer finish cast die valve jacket thereon, make it uniformity, the lower flange of outer finish cast die shell and interior finish cast die shell is bonded together, then get a complete finish cast die shell.
Four, casting process: above-mentioned complete formwork is installed in drawing on bed die (25) top of equipment shown in Figure 3, and with regard to the equipment of composition diagram 3, its pouring operation process also as described in the embodiment 1, does not repeat them here.
As from the foregoing, two embodiment of the present utility model have adopted different casting molds: what first embodiment adopted is cold-formed high-density graphite formwork; What second embodiment adopted is the graphite shell mould of slurry moulding on metal die.More than two kinds of casting molds be called for short formworks.
List of references " metal freezing principle " chapter 7 Hu Hanqi edits China Machine Press.
Claims (8)
1. titanium alloy missile bay body directional solidification precision casting equipment; by inert gas shielding chamber and inner induction skull crucible, precise casting mould shell thereof, draw bed die, interior externally heated oven, inside and outside water spraying cooler and form; draw bed die drive precise casting mould shell during operation and drop to the cooling zone with certain speed by the heating furnace district; realize directional solidification, it is characterized in that: its precise casting mould shell is to be fitted together by the inside and outside formwork of making respectively to make.
2. equipment according to claim 1 is characterized in that: its formwork is to make through machining with the graphite blank of compacting.
3. equipment according to claim 1 is characterized in that: its formwork is made with the moulding on metal die of smart casting slurry.
4. equipment according to claim 1 is characterized in that: be provided with heating furnace inside and outside its formwork, so that guarantee its temperature 20 ℃ the degree of superheat arranged on alloy melting point.
5. equipment according to claim 1 is characterized in that: water jet in water ring reaches outside being provided with under heating furnace, solidify to guarantee foundry goods slewing.
6. equipment according to claim 1 is characterized in that: kept apart by fire-resistant felt pan between heating furnace and the cooler.
7. equipment according to claim 1 is characterized in that: inside and outside formwork is mounted in draws on the bed die, and when the latter descended with certain speed, both entered the cooling zone with same speed.
8. equipment according to claim 1 is characterized in that: interior water jet (23), center fixation pillar (17) and following water service pipe weld together, and are installed in to draw the heart among the bed die (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008201768649U CN201442085U (en) | 2008-11-28 | 2008-11-28 | Directional solidification casting device for titanium alloy missile cabins |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201768649U CN201442085U (en) | 2008-11-28 | 2008-11-28 | Directional solidification casting device for titanium alloy missile cabins |
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| CN201442085U true CN201442085U (en) | 2010-04-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380588A (en) * | 2010-09-02 | 2012-03-21 | 辽宁科技大学 | Intermediate-frequency induction and directional solidification ingot casting process and equipment utilizing same |
| CN107008883A (en) * | 2015-11-15 | 2017-08-04 | 通用电气公司 | Casting method and product |
| CN108607973A (en) * | 2018-04-24 | 2018-10-02 | 山东省科学院新材料研究所 | A kind of method for casting aluminium alloy generating elongate column crystal solidification tissue |
| CN109759570A (en) * | 2019-03-12 | 2019-05-17 | 永大科技集团有限公司 | Four Room orientations/monocrystalline vacuum induction furnace apparatus of bimodulus housing chamber |
| CN112935186A (en) * | 2021-01-26 | 2021-06-11 | 燕山大学 | Precision casting device of heavy-calibre thick-walled pipe |
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2008
- 2008-11-28 CN CN2008201768649U patent/CN201442085U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380588A (en) * | 2010-09-02 | 2012-03-21 | 辽宁科技大学 | Intermediate-frequency induction and directional solidification ingot casting process and equipment utilizing same |
| CN102380588B (en) * | 2010-09-02 | 2013-04-17 | 辽宁科技大学 | Intermediate-frequency induction and directional solidification ingot casting process and equipment utilizing same |
| CN107008883A (en) * | 2015-11-15 | 2017-08-04 | 通用电气公司 | Casting method and product |
| CN108607973A (en) * | 2018-04-24 | 2018-10-02 | 山东省科学院新材料研究所 | A kind of method for casting aluminium alloy generating elongate column crystal solidification tissue |
| CN109759570A (en) * | 2019-03-12 | 2019-05-17 | 永大科技集团有限公司 | Four Room orientations/monocrystalline vacuum induction furnace apparatus of bimodulus housing chamber |
| CN109759570B (en) * | 2019-03-12 | 2024-05-03 | 江苏永瀚特种合金技术股份有限公司 | Four-chamber directional/single crystal vacuum induction furnace equipment with double mould chambers |
| CN112935186A (en) * | 2021-01-26 | 2021-06-11 | 燕山大学 | Precision casting device of heavy-calibre thick-walled pipe |
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