CN101181736A - Semi solid rheoforming method for metal parts and device therefor - Google Patents
Semi solid rheoforming method for metal parts and device therefor Download PDFInfo
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Abstract
The invention relates to a semi-solid fluidized molding method and a device for metal parts. Liquid metal with the temperature from 0 to 40 DEG C above liquid phase is guided into a pulp container, and then an ultrasonic radiation is lowered down to 1 to 30mm above the liquid surface, ultrasonic radiation is started, and the slurry is cooled at the speed ranging from 0.1 DEG C per second to 3 DEG C per second. The ultrasonic radiation can be pulse radiation or non-radiation pulse with ultrasonic frequency ranging from 12kHz to 80kHz, radiation volume power 5W/cm<3> to 100W/cm<3>, and radiation time from 15s to 1000s; the slurry is poured into molding equipment to be molded into parts after the radiation. The molded part has dense organization, fine and equally distributed grains. The device of the invention comprises a pulp container, a thermostat, an ultrasonic generation and a control unit, a sleeve, and a mold and an injection rod and a molding device. The fluidized molding method and device can be used for fluidized molding of various alloy parts made from aluminum, magnesium, tin, copper and iron etc. The method has the advantages of non-contaminated pulp, long service life of ultrasonic equipment and high part production efficiency.
Description
Technical field
The invention belongs to the Semi-Solid Metals Forming field, be specifically related to a kind of semi-solid rheological molding method and device thereof of metal parts.
Technical background
So-called Semi-Solid Metals Forming technology, exactly when molten metal is cooled to temperature between solidus and the liquidus curve, it is imposed the hot state or the adding grain refiner of violent stirring or disturbance or change metal or carries out rapid solidification, promptly change the forming core and the growth process of nascent solid phase, obtaining suspending equably in a kind of liquid metal mother liquor, (solid phase components is generally about 50% for the solid-liquid mixed slurry of certain spherical nascent solid phase, even can reach 60%), utilize this solid-liquid mixed slurry directly to form processing; Or earlier this solid-liquid mixed slurry is frozen into blank fully, then as required with the blank cutting, the blank with cutting reheats to solid-liquid two-phase region again, utilizes this semi-solid blank to form processing.Preceding kind method is called rheological molding, and the back is planted and is called thixotropic forming, and these two kinds of methods all are referred to as the Semi-Solid Metals Forming technology.
The semi-solid metal forming technology is compared advantages such as having raising drip molding performance, shortening manufacturing procedure, energy savings with the conventional metals forming technique, therefore the various countries researcher has given great attention to the research of its theory and technology since invention.Through years of development, particularly in recent years, numerous semi solid slurries or blank preparation technology and various semi-solid state forming technique industry are competitively come out, but because existing semi-solid state forming technique shortcoming separately, the technology that really is applied to suitability for industrialized production is quite limited.Generally, the semi-solid metal forming technology is divided into rheological molding and thixotropic forming two big classes according to the difference of technological process.Because the semi-solid-state metal blank of thixotropic forming is compared with semi solid slurry, its conveying and heating are comparatively convenient, and easily realize automation mechanized operation, therefore for a long time, the research of semi-solid state forming technique and application mainly concentrate on the thixotropic forming technology, make it become topmost semi-solid metal forming process in the present commercial Application.Shortcomings such as but thixotropic forming has blank preparation cost height, and be difficult to be shaped complicated part and technological process are long, and rheological molding can overcome above-mentioned shortcoming, thus improve the production efficiency of semi-solid state forming technique, reduce production costs.Therefore the research of rheological molding is subjected to increasing attention.
In recent years, because the semi-solid state metal rheological Study on Technology more and more is subjected to the extensive attention of countries in the world, various rheological slurry preparation methods and rheological molding device are come out one after another.Here main rheological slurry preparation method and the rheological molding device that occurs in recent years of introducing:
(1) mechanical agitation prepares slurry formula rheological molding
Mechanical mixing method is the method for preparing slurry that adopts the earliest, it also is slurry preparation method (No. the 3948650th, the United States Patent (USP) that adopts at the beginning of semisolid is invented, No. 3902544), this kind method is developed in recent years, and has produced several new mechanical agitation and prepare slurry formula rheological molding technology.Penetrate with rheology wherein that to cast shape the most noticeable.
Rheology is penetrated and is cast shape and comprise that single-screw and double helix rheology are penetrated and cast two kinds of shapes.
The people such as K.K.Wang of U.S. Cornell University (No. the 5501266th, United States Patent (USP)) combine semi-solid state metal rheological technology and injection molding of plastics technology, invented a kind of new rheological molding technology, i.e. the shape technology (Rheomoulding) of casting is penetrated in single-screw rheology.Its operation principle is: overheated alloy melt flows under the influence of gravity in the slit of mixing drum and screw rod, in the process that continues to flow downward, constantly be cooled and stir shearing, when arriving outlet, alloy melt has become the semi solid slurry of certain fraction solid.Before penetrating casting, screw rod elder generation slow astern segment distance makes its front end gather a certain amount of semi solid slurry, is pressed into mold cavity with certain axial velocity (smaller or equal to 0.15m/s) then; Subsequently, screw rod rotates the stirring alloy melt once more, prepares to penetrate next time casting.
People such as Peng Xuan (CN1062793C) have improved vertical rheology and have penetrated casting machine, have developed the horizontal and horizontal prototype of 1000KN.This system is mainly by the fusing feed unit, and slurry generation unit and stirring injecting unit three parts are formed.People such as Zhang Kui (CN2566961Y, CN2569943Y) the casting system is penetrated in the close rheology of system that also proposes two kinds of principles and structure and K.K.Wang exploitation, but whole system is horizontal positioned, thereby the whole system assembling is simple.
The advantage of casting the shape technology is penetrated in the single-screw rheology, and alloy melt not only is difficult for being involved in gas in flowing into the cylindrical shell process, and is stirred to shear in seal channel and more difficultly has any gas to enter, and therefore, the product voidage is low, density is high; Technological process is short, does not need raw material are carried out preliminary treatment, and waste product and foundry goods clout reclaim convenient, thereby have improved production efficiency, have reduced production time and cost; It is simple in structure, is easy to automation.Its shortcoming is: the material performance requirement height of screw rod in the equipment (satisfying wear-resisting, corrosion resisting property under the high temperature etc.); Usually it is not high enough to stir the shear rate that produces by single-screw.
People (CN2471450Y) such as calendar year 2001 Luo Jirong propose the twin-screw technology of preparing of semi solid slurry, double-screw structure is improved, two screw flights are changed into many helical pitches, many stagger arrangement angle from original single helical pitch, single stagger arrangement angle, thereby guarantee that slurry is subjected to different shear actions in the different temperatures stage, effects on slurry making is desirable more, and, thereby help practical operation with whole preparation facilities horizontal positioned.This method can reach very high shear rate, thereby it is many to have made semisolid grain refine and nodularization, and its foundry goods structural homogenity is also quite high.Its weak point is: the screw rod operating mode is poor, consumes greatly, and the life-span is short etc.
At present, nearly all rheology is penetrated casting process and is not reached actual application level as yet, and the equipment that is in improves and the production technology optimization stage.Report to have only the AZ91D magnesium alloy to adopt rheology to penetrate the casting technology and produce out automobile, computer and camera part blank as a trial.
(2) electromagnetic agitation prepares slurry formula rheological molding
Bavin field people (R Shibata, T Kaneuchi, T Soda, the et al.New semi-liquid metal casting process.In:Proc of the 4 such as (Shibata) of FDAC (Hitachi) metal Co., Ltd before and after nineteen ninety-five
ThInt.Conf.On Semi-Solid Processing of Alloys andComposites, University of Sheffield, England, June 19-21,1996:296-300) a kind of new rheological molding method and carried out the semi-solid-state shaping experiment of AlSi7Mg0.7 has been proposed, its principle is: prepare semi solid slurry by electromagnetic agitation in the extruder sleeve earlier, directly carry out extrusion molding then.The advantage of this technology is to have avoided the storage and the conveying of semi-solid alloy slurry.Its shortcoming following points: the one, preparation semi solid slurry efficient is low in the extruder sleeve, thereby has reduced the production efficiency of extruder; The 2nd, the complex structure of sleeve and the life-span of sleeve are difficult to for a long time; The 3rd, organizing of slurrying sleeve inner is not ideal enough.
2002, people (CN1298461C) such as the pretty spoon of Korea S's flood proposed a kind of novel electromagnetic agitation rheological molding system, have solved the deficiency of people's technologies such as Shibata preferably.This system carries out electromagnetic agitation before alloy liquid carries out casting forming, not only can promote alloy liquid forming core, also shortens the slurrying time, improves die casting efficient.But electromagnetic agitation still exists, and equipment is big, cost is high, stir the low problem of shear rate.
(3) low overheat and the weak stirring formula rheological molding that combines
2000, (No. the 20020096231st, United States Patent (USP)s) such as the Flemings of masschusetts, u.s.a Polytechnics and Martinez proposes a kind of new rheological molding technology, it is Semi-Solid Rhocasting (SSR) technology, the process route of preparation slurry is in this technology: the alloy liquid of low overheat is poured in the preparation slurry filling container, utilize the copper rod of plated film that the alloy liquid in the slurry filling container is carried out weak in short-term the stirring, alloy melt is cooled to below the liquidus temperature; Remove stirring rod then, the temperature or the fraction solid that allow semi-solid alloy melt in the slurry filling container be cooled to be scheduled to.This pulping process still mainly is the mechanical mixing method of low velocity.
Mao Weimin etc. (CN1411932A) have proposed a kind of low overheat cast light current magnetic stirring-type rheological molding, and the thinking of its blank preparation technics is similar to the thinking of SSR, and its maximum difference is that mixing power is provided by electromagnetic force.
(4) ultrasonic vibration prepares semi solid slurry
To the beginning of the nineties in last century, just there is the scholar to begin to explore the application of ultrasonic vibration in semi-solid-state shaping.Gabathuler etc. (No. the 5186236th, United States Patent (USP)) are incorporated into ultrasonic vibration in the semisolid continuous casting first, have obtained the blank of the tiny rounding of primary crystal.The basic principle that the ultrasonic vibration legal system is equipped with semi solid slurry is, utilizes the process of setting of ultrasonic mechanical vibration wave disturbance metal, and fining metal crystal grain obtains the nascent brilliant metal paste of non-branch.Ultrasonic vibration can not only fining metal crystal grain and is obtained ring initial crystal, also can remove the gas in the melt, reduces the oxide inclusions in the melt, improves the uniformity of melt.Because this kind method has melt and environmental pollution all very for a short time, technology is simple, and characteristics such as the low and slurrying efficient height of operating cost have vast potential for future development.
The method that ultrasonic vibration at present acts on melt generally has two kinds: a kind of is that vibrator is acted on mould or the slurry filling container, and mould or slurry filling container act directly on the metal bath again; Another kind is that vibrator directly stretches into the melt internal action in metal bath.Chinese patent (CN1323782C) has disclosed a kind of ultrasonic method for preparing semi solid slurry or blank, and this method is that ultrasonic amplitude transformer is inserted in the melt its effect or the slurry filling container bottom of containing melt by acting on are come indirectly melt to be executed to shake.The shortcoming of this kind method is that the vibrator that inserts melt is corroded by metal bath easily, and the pollution metal melt; During by bottom effect melt, because the absorption of slurry filling container to vibrating, thereby the efficient of vibrating reduced.Document Micro-structure evolution of semi-solid Al-7Si-0.4Mg alloy byshort time supersonic vibration (the Al-7Si-0.4Mg alloy structure differentiation that ultrasonic vibration is in short-term handled) (Liu C, Pan Y and Aoyama S.In:Proc.of the 5th Int.Conf.onSemi-Solid Processing of Alloys and Composites, Colorado, USA, 1998:439-447) also provide a kind of ultrasonic vibration head indirectly melt to be executed the method for preparing semi solid slurry of shaking by acting on the slurry filling container wall, there is the problem that is difficult to install attemperator in this kind method.
Summary of the invention
The object of the present invention is to provide a kind of ultrasonic wave radiation of metal parts to prepare semi solid slurry and rheological molding method, this method has reduced technique controlling difficulty on the one hand, reduced the cost of equipment and operation, improved the efficient of semisolid preparation, and avoided pollution melt and environment; Reduced the requirement of ultrasonic vibration head material on the other hand and prolonged its service life; The present invention also provides the device of this method of realization.
The semi-solid rheological molding method of metal parts provided by the invention, its step comprises:
1. be that 0～40 ℃ molten metal imports in the slurry filling container more than the liquidus temperature with temperature; Perhaps, be cooled to above 0～40 ℃ of liquidus temperature again with in the container after the over-heat metal liquid importing preheating.
2. above-mentioned molten metal is carried out ultrasonic radiation, the melt cooling velocity is 0.1～3 ℃/s in the radiative process; The radiation temperature scope is above 0～40 ℃ of beginning of liquidus temperature, to below the liquidus temperature 10～30 ℃;
3. radiation head transfers to apart from liquid level 1～30mm place during radiation treatment; Supersonic frequency is 12kHz～80kHz, and the radiation summation watt rating is 5W/cm
3～100W/cm
3, described summation watt rating is a ultrasonic radiation power and the ratio of the melt volume of institute radiation;
4. behind 5～1000s, stop ultrasonic radiation, obtain semi-solid metal slurry;
5. the semi-solid metal slurry that obtains is poured in the building mortion, carrying out rheological molding is part.
3. step can adopt impulse radiation or non-pulse radiation that molten metal is handled.Radiated time length in the impulse radiation is generally 0.1～100s, is good with 1～10s; Radiated time in the impulse radiation is 0.2～20 with the ratio of non-radiative time, is good with 0.5～10.
The semi-solid rheological molding device of metal parts provided by the invention, this device comprises mould, sleeve, and die casting machine or extruder, and an end of sleeve inserts in the mould, and mould links to each other with die casting machine or extruder by connector; It is characterized in that: this device also comprises slurry filling container, register, sleeve and ultrasonic generation and control module;
Ultrasonic generation and control module comprise ultrasonic generator controller and the transducer that fuses successively, luffing bar and ultrasonic radiation head, and ultrasonic generator controller and transducer are electrically connected, and the ultrasonic radiation head is positioned at slurry filling container top;
One end of injection rod inserts in the sleeve, and the other end links to each other with die casting machine or extruder;
Register comprises cooling water channel, resistive heater and temperature controller, and cooling water channel and resistive heater are around described slurry filling container interlaced arrangement, and register and temperature controller are electrically connected; Be provided with the slurry passage between described slurry filling container and the sleeve.
The inventive method is by carrying out ultrasound wave irradiation to metal bath, and applies the cooling of certain speed, just prepares the equally distributed semi solid slurry of primary grain tiny, rounding at short notice.Because the ultrasonic radiation head does not contact with melt in the inventive method, low to the requirement of radiation head material therefor, long service life, and preparation slurry required time is short, has therefore improved pulp preparation efficient greatly and has reduced the pulp preparation cost.Particularly, the present invention has following technique effect:
(1) utilize above slurry preparation method efficient production to go out high-quality rheological slurry or blank, i.e. the tiny rounding of primary grain, equally distributed rheological slurry or blank.
(2) because the ultrasonic radiation head does not contact with molten metal, radiation head can not corroded by molten metal, thereby reduced the restriction that radiation head uses material, make the instrument cost reduction, and expanded and to prepare range of metal, also increased the radiating element life-span greatly.
(3) the present invention combines ultrasonic radiation and low overheat temperature control technology, makes pulp preparation efficient very high.
(4) the equipment adjustment is flexible, can be according to actual needs, and online adjusting process parameter.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of rheological molding device of the present invention;
Fig. 2 is the structural representation of the another kind of specific embodiment of rheological molding device of the present invention;
Fig. 3 is the ZL 101 alloy microstructure of semisolid figure with the preparation of ultrasonic radiation method;
Fig. 4 is the A390 aluminium alloy semi-solid organization chart with the preparation of ultrasonic radiation method.
The specific embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing and example.
The inventive method may further comprise the steps:
(1) refining treatment is good a certain amount of molten metal imports in the slurry filling container of preheating, falls ultrasonic radiation 21, and ultrasonic radiation 21 distance from liquid level are 1mm～30mm, open ultrasonic radiation immediately.
(2) can carry out the adjusting of radiant power, ultrasonic radiation time, ultrasonic blanking time by ultrasonic generator controller 24.The radiation summation watt rating of radiation head is 5～100W/cm
3If use impulse radiation, time span is generally 0.1～100s, and radiated time is 0.2～20 with the ratio of non-radiative time.The radiation temperature scope is above 0～40 ℃ of beginning of liquidus temperature, till 10～30 ℃ (the pairing temperature of 10～50% solid rates) below the liquidus temperature, and concrete radiated time and stop radiation temperature and the needs of solid rate are decided according to product.
(3) the radiation head end can be flat, also can be hemispherical, and is better in second spherical effect of situation that other condition is identical.The material of preparation radiation head can be a steel, also can be titanium alloy or other material;
(4) ultrasonic transducer 23 can be piezoelectric type or magnetostriction type; Used frequency is 12KHz～80KHz.
(5) temperature controller 11 is 0.1～3 ℃/s by register 13 control melt cooling velocities.
(6) metal bath can be an aluminium alloy, magnesium alloy, and ashbury metal, copper alloy and ferroalloy etc., this method can be used for the preparation of the semi solid slurry of these alloys.When being used for magnesium alloy, need logical protective gas to stop the magnesium alloy oxidation.
(7) to stopping radiation behind metal bath ultrasonic radiation 5～1000s, obtain semi-solid metal slurry.
Rheological molding device of the present invention comprises slurry filling container, register 13, ultrasonic generation and control module 2, sleeve 3, mould 4 and injection rod 5 and die casting machine or extruder (not drawing among the figure).
As shown in Figure 1, the structure of slurry filling container is: refractory brick 12 places on the sleeve 3, and crucible 14 is placed on the refractory brick 12, and the discharging opening of crucible 14 aligns with the pouring slot 31 of sleeve 3.Stopper rod 15 inserts crucible 14 bottoms near in the discharging opening at slurry filling container wall place.Register 13 comprises cooling water channel 13a, resistive heater 13b and temperature controller 11, and cooling water channel 13a and resistive heater 13b are around the slurry filling container interlaced arrangement, and the gap is filled with refractory material, and register 13 is electrically connected with temperature controller 11.
The structure of ultrasonic generation and control module 2 is: ultrasonic generator controller 24 is electrically connected with transducer 23, transducer 23, luffing bar 22 and ultrasonic radiation 21 firmly fuses successively, ultrasonic radiation 21 is positioned at the top of containing slurry and temperature control unit 1, contains between slurry and temperature control unit 1 and the sleeve 3 and is provided with the slurry passage.
The other end of sleeve 3 inserts in the mould 4, and mould 4 comprises dynamic model 41 and cover half 42.Dynamic model 41 and the cover half 42 closed die cavities 43 that form.Have running channel 44 on the dynamic model 41.Dynamic model 41 and cover half 42 are supported by corresponding Bottom clamp plate 45 and top clamping plate 46, and they link to each other with die casting machine or extruder by connector.Injection rod 5 one ends insert in the sleeve, and the other end links to each other with die casting machine or extruder.
The package unit workflow is as follows: molten metal is imported in the slurry filling container (crucible 14), contain slurry and temperature control unit 1 and carry out temperature adjustment, the 21 beginning radiation of ultrasonic radiation simultaneously.After preparing slurry, stopper rod 15 is mentioned, and slurry flows in the sleeves 3 by pouring slot 31, and injection rod 5 is pushed ahead slurry, and slurry flows into die cavities 43 via running channel 44 and is shaped, and behind the certain hour, dynamic model 41 and cover half 42 separately take out product from die cavity 43.
As Fig. 2, the Sheng slurry district of slurry filling container for constituting by baffle plate 6, sleeve 3 and injection rod 5.Baffle plate 6 is relative with injection rod 5, and register 13 is enclosed within on the sleeve 3, has through hole on it, and aligns with the pouring slot 31 of sleeve 3, so that ultrasonic radiation 21 is passed smoothly and moved to and contains top, slurry district.Example 1
Utilize ZL 101 alloy to carry out ultrasonic vibration and prepare the semisolid part.The liquidus temperature of ZL 101 alloy is 616 ℃, 567 ℃ of solidus temperatures.Alloy is melted in resistance furnace and be warming up to 740 ℃, standby after refining, the degasification.Utilize temperature control equipment that the alloy liquid temp is remained on about 660 ℃.Get an amount of aluminium liquid, fall as in the slurry filling container, utilize temperature control system (register 13 and temperature controller 11) that the temperature of melt is controlled at 610 ℃, the melt cooling velocity is 0.1～3 ℃/s.
Figure 3 shows that the ZL 101 alloy melt behind ultrasound wave irradiation, the semi solid slurry of acquisition is with the microscopic structure metallograph behind its casting forming.Former should be the primary crystal tissue of dendrite, is the non-tree-crystal tissue that is ellipsoid shape crystal grain now.
Example 2
Utilize the A390 aluminium alloy to carry out ultrasonic vibration and prepare semisolid.The liquidus temperature of A390 aluminium alloy is 650 ℃, 505 ℃ of solidus temperatures.Alloy is melted in resistance furnace and be warming up to 770 ℃, standby after refining, the degasification.Utilize temperature control equipment that the alloy liquid temp is remained on about 680 ℃.Get an amount of aluminium liquid, fall as contain in the slurry crucible (Fig. 1), utilize temperature control equipment that the alloy liquid temp is controlled at 650 ℃, the melt cooling velocity is 0.1～3 ℃/s.
Figure 4 shows that A390 aluminium alloy semi-solid microscopic structure with the preparation of ultrasonic radiation method, former should be polygonal thick sheet primary crystal Si, be tiny graininess primary crystal Si now after handling through ultrasonic radiation, the effect of isolating of matrix is reduced greatly, intensity increases substantially.
Example 3
Utilize the AZ91 magnesium alloy to carry out ultrasonic vibration and prepare semisolid.The liquidus temperature of AZ91 magnesium alloy is 595 ℃, 470 ℃ of solidus temperatures.Alloy is melted in resistance furnace and be warming up to 680 ℃, standby after refining, the degasification.Utilize temperature control equipment that the alloy liquid temp is remained on about 640 ℃.Get an amount of magnesium liquid, fall as (Fig. 2) in the sleeve 3, utilize temperature control system that the temperature of sleeve and melt is controlled at 590 ℃, the melt cooling velocity is 0.1～3 ℃/s.
Claims (6)
1. the semi-solid rheological molding method of a metal parts, its step comprises:
1. be that 0～40 ℃ molten metal imports pulp preparation with in the container more than the liquidus temperature with temperature; Perhaps, be cooled to above 0～40 ℃ of liquidus temperature again with in the container after the over-heat metal liquid importing preheating;
2. above-mentioned molten metal is carried out ultrasonic radiation, the melt cooling velocity is 0.1～3 ℃/s in the radiative process; The radiation temperature scope is above 0～40 ℃ of beginning of liquidus temperature, to below the liquidus temperature 10～30 ℃;
3. radiation head transfers to apart from predetermined level 1～30mm place; Supersonic frequency is 12kHz～80kHz, and the radiation summation watt rating is 5W/cm
3～100W/cm
3, described summation watt rating is a ultrasonic radiation power and the ratio of the melt volume of institute radiation;
4. behind 5～1000s, stop ultrasonic radiation, obtain semi-solid metal slurry;
5. the semi-solid metal slurry that obtains is poured in the building mortion, carrying out rheological molding is part.
2. method according to claim 1 is characterized in that: step is carried out impulse radiation to molten metal in 3., and the radiated time length in the impulse radiation is 0.1～100s, and its radiated time is 0.2～20 with the ratio of non-radiative time.
3. method according to claim 1 and 2 is characterized in that: step is carried out impulse radiation to molten metal in 2., and the impulse radiation time span is 1～10s, and its radiated time is 0.5～10 with the ratio of non-radiative time.
4. the semi-solid rheological molding device of a metal parts, this device comprises mould (4), sleeve (3), and die casting machine or extruder, and an end of sleeve (3) inserts in the mould (4), and mould (4) links to each other with die casting machine or extruder by connector;
It is characterized in that: this device also comprises slurry filling container, register (13), sleeve (3) and ultrasonic generation and control module (2);
Transducer (23), luffing bar (22) and ultrasonic radiation head (21) that ultrasonic generation and control module (2) comprise ultrasonic generator controller (24) and fuse successively, ultrasonic generator controller (24) is electrically connected with transducer (23), and ultrasonic radiation head (21) is positioned at slurry filling container top;
One end of injection rod (5) inserts in the sleeve, and the other end links to each other with die casting machine or extruder;
Register (13) comprises cooling water channel (13a), resistive heater (13b) and temperature controller (11), and cooling water channel (13a) and resistive heater (13b) are around described slurry filling container interlaced arrangement, and heating resistor (13b) is electrically connected with temperature controller (11); Described slurry filling container and sleeve are provided with the slurry passage between (3).
5. device according to claim 4, it is characterized in that: described slurry filling container comprises crucible (14) and stopper rod (15), crucible (14) is placed on the refractory brick (12), refractory brick (12) places on the sleeve (3), the discharging opening of crucible (14) aligns with the pouring slot (31) of sleeve (3), and stopper rod (15) inserts crucible (14) bottom near in the discharging opening at slurry filling container wall place.
6. device according to claim 4, it is characterized in that: the zone of described slurry filling container for surrounding by baffle plate (6), sleeve (3) and injection rod (5), baffle plate (6) is relative with injection rod (5), register (13) is enclosed within on the sleeve (3), has the through hole that aligns with the pouring slot (31) of sleeve (3) on the register.
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