CN201234368Y - Electromagnetic induction heating device - Google Patents

Electromagnetic induction heating device Download PDF

Info

Publication number
CN201234368Y
CN201234368Y CNU2008200297323U CN200820029732U CN201234368Y CN 201234368 Y CN201234368 Y CN 201234368Y CN U2008200297323 U CNU2008200297323 U CN U2008200297323U CN 200820029732 U CN200820029732 U CN 200820029732U CN 201234368 Y CN201234368 Y CN 201234368Y
Authority
CN
China
Prior art keywords
frequency
graphite
frequency inductor
graphite heating
induction heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008200297323U
Other languages
Chinese (zh)
Inventor
罗文忠
沈军
傅恒志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northwestern Polytechnical University
Original Assignee
Northwestern Polytechnical University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northwestern Polytechnical University filed Critical Northwestern Polytechnical University
Priority to CNU2008200297323U priority Critical patent/CN201234368Y/en
Application granted granted Critical
Publication of CN201234368Y publication Critical patent/CN201234368Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Landscapes

  • General Induction Heating (AREA)

Abstract

The utility model relates to an electromagnetic-induction heater, which comprises two high-frequency inductors (4), wherein the top and the bottom surfaces of each high-frequency inductor are inclined in shape of internal cone; an insulating plate (6) is arranged between the two high-frequency inductors; and a circuit-breaking groove is formed on the insulating plate in the redius direction. The thickness of the inner circumference of each high-frequency inductor is 1/4 of that of the outer circumference thereof. Both the inside diameter and the outside diameter at one end of a graphite heating piece (3) are larger than the inside diameter and the outside diameter at the other end thereof, and the larger end and the smaller end of the graphite heating piece are transited at a 45 degree oblique angle, so that the graphite heating piece is funnel-shaped. The inside diameter of the smaller end of the graphite heating piece (3) is larger than the outside diameter of a ceramic crucible (1). The smaller end of the graphite heating piece (3) is subjected to the forced induction heating by the blade-shaped part of each high-frequency inductor (4), thereby generating high temperature gradient at the forefront of the molten solid/liquid interface. The larger end of the graphite heating piece (3) preheats a test stick inside the ceramic crucible (1), thereby ensuring complete melting and overheat of the test stick at a high withdrawal rate. The electromagnetic-induction heater can ensure high temperature gradient and low melt flow during the directional solidification process.

Description

A kind of electromagnetic induction heater
One, technical field
The present invention relates to the directional solidification control in material field, specifically is a kind of electromagnetic induction heater.
Two, background technology
The directional solidification technique that is proposed by Bridgman is the significant development of advanced material process technology in modern age.Compare with the foundry goods that the conventional cast method obtains, directional solidification gained columanar structure has significantly reduced segregation, casting flaw such as loose, has formed the crystal grain parallel with the principal axes of stress, has eliminated horizontal crystal boundary and has improved the performance of structural material significantly.In actual production, the application of directional solidification technique has improved elevated temperature strength, thermal fatigue property, creep and the persistent characteristic of high temperature alloy, makes the blade of aviation engine mechanical property with single load bearing requirement that new leap arranged.Simultaneously, this technology also is used for the preparation of many functional materials such as semiconductor, magnetic material, optical crystal, superconductor, as magnetic material iron etc., using directed solidification technology can make its column crystal along the growth of magnetized axis direction, thereby obtains having the foundry goods of good magnetic performance.Therefore, updating of directional solidification technique and device is the important means that promotes the development of high-performance advanced material.The important technical parameter that temperature gradient in the directional solidification process in the liquid phase of solid/liquid interfaces forward position and crystal growth rate are directional solidification technique, wherein the ratio of temperature gradient and growth rate is the important criterion of control crystal growth form.Under the condition that improves temperature gradient, can suitably increase growth rate, obtain desired crystal habit, and thinning solidification structure, improve casting quality, can also improve the productivity ratio of directional solidification castings simultaneously.So the development of directional solidification technique is a target to improve the solid/liquid interfaces temp gradient at front edge all.
Mode of heating is the key factor of decision temperature gradient height, and the mode of heating in laboratory and the industrial production directional solidification process mainly contains resistance heating and electromagnetic induction heating at present.Resistance heating is to use material with high-melting-point and high conductivity such as tantalum etc. as heater heating coupon, and this method has uniform distribution of temperature field, heating-up temperature is high and can not produce advantage such as outfield interference to melt.But calandrias such as tantalum cost an arm and a leg, and are very high to the vacuum degree requirement in the experimentation, and heating and cooling speed is very slow.Because resistance heating is mainly by radiant heat transfer, heating surface (area) (HS is big, be difficult to make heat to concentrate and obtain in the part big density of heat flow rate, thereby temperature gradient is very low.Electromagnetic induction heating is that sample is placed among the induction coil, and the metal or the semiconductor induced inside that are in alternating magnetic field produce eddy current, utilize eddy current and magnetic hysteresis loss to produce heat.Because heat results from coupon itself fully in the electromagnetic induction heating process, energy density is big, realizes narrow melting zone, overheated greatly easily, thereby can obtain the high rate of heat addition and high temperature gradient.But electromagnetic force stirs the pressure of melt and makes the oriented freezing organization that is difficult to obtain stable growth in the coupon.
At present, the directional solidification process adopts the mode of graphite resistance heating more, this method is because graphite relative low price and temperature control are easy, therefore be subjected to extensive concern, but mechanism's complexity of graphite resistance heating, fault is frequent and be difficult to safeguard that the gained temperature gradient is still lower simultaneously, only has about 100K/cm.Northwestern Polytechnical University has proposed the method for electromagnetic induction in conjunction with graphite heating in application number is 200810017988.7 patent application document, realized that heating rate is fast and shielded most of electromagnetic stirring force, has obtained oriented freezing organization preferably.Analyze and find, though this method has obtained the higher temperature gradient in the 200K/cm left and right sides by the shape that changes graphite heater, but because electromagnetic inductor and graphite heater height are bigger, heating surface (area) (HS is big, be difficult to make the melt in solid/liquid interfaces forward position to obtain to concentrate heating, so the raising of temperature gradient is limited.Simultaneously, the thickness of graphite heater is to the shielding of electromagnetic field and bigger to the heating efficiency influence of coupon: graphite heater is blocked up, the good but temperature gradient decline of magnetic field shielding; Graphite heater is thin excessively, and temperature gradient height but electromagnetic stirring force in the melt is big is unfavorable for the acquisition of oriented freezing organization.
Three, summary of the invention
For overcome in the heating process that exists in the prior art heat up and rate of temperature fall slow, temperature gradient is low, the electromagnetic induction heating mixing power is too big, is unfavorable for the deficiency of directed tissue growth, the present invention proposes a kind of electromagnetic induction heater.
The present invention includes graphite induction heating equipment, ceramic crucible, water mold, vacuum chamber, vacuum drawn system, following pull system and high-frequency induction heating power.Wherein, the graphite induction heating equipment is made up of coil, high-frequency inductor, graphite heating body and last heat insulating board.Coil is two circles, is enclosed within the high-frequency inductor outer round surface groove, by weld structure and high-frequency inductor seamless link.
High-frequency inductor is two circle annulars, and diameter of bore is greater than the external diameter of graphite heating body small end, and external peripheral surface has the mounting groove of coil.Two circle high-frequency inductors are to be combined by two single turn high-frequency inductors that structure is identical, direction is opposite.A surface of single turn high-frequency inductor is attenuate gradually from outside to inside, becomes the inclined-plane, and another surface is the plane, and the mounting groove of a turn coil is arranged at the external peripheral surface of single turn high-frequency inductor; The plane of two single turn high-frequency inductors is fit together, formed inner conical high-frequency inductor of the present invention.The thickness of high-frequency inductor inner circle is 1/4 of cylindrical place thickness.For preventing short circuit, between two single turn high-frequency inductors that fit, install insulation board additional.High-frequency inductor upper edge radial direction has the groove of opening circuit.
Graphite heating body is the hollow revolving body, and the internal diameter of an end and external diameter all greater than the internal diameter and the external diameter of the other end, have formed big end and small end, and greatly the end and small end between 45 ° of oblique angle transition, make graphite heating body be infundibulate.The internal diameter of calandria small end is greater than the external diameter of ceramic crucible.
During installation:
The spill radiation baffle placed contain cooling with on the water mold of liquid metal.Embed in the coil mounting groove on the high-frequency inductor excircle coil and firm welding; The small end of graphite heating body is packed in two circle high-frequency inductor endoporus, and the tooth shape place of coil inner conical is cooperated with the outer wall of graphite heating body small end; Last heat insulating board places on the big end of graphite heating body, has formed the graphite induction heating equipment.The graphite induction heating equipment is placed on the radiation baffle.High-frequency inductor is connected with high-frequency induction heating power by coil.The mesopore that ceramic crucible passes spill radiation baffle, graphite heating body and last heat insulating board is connected with following pull system, and and inwall, spill radiation baffle inwall and the last heat insulating board inwall of graphite heating body small end with the gap of possessing 1.5~2mm between the ceramic crucible.Above assembly is placed vacuum chamber jointly.
The present invention is processed into inner conical with induction heater, induction heating is forced to the small end of infundibulate graphite heating body in its tooth shape position, small end in the infundibulate graphite heating body obtains very high density of heat flow rate, make the coupon in the radiation heating ceramic crucible of infundibulate graphite heating body small end position, obtained very high temperature gradient in melt solid/liquid interfaces forward position.The big end of infundibulate graphite heating body is to the coupon preheating in the ceramic crucible, guarantees the abundant fusing of coupon under the high withdrawing rate and overheated.Simultaneously, through design, shielded electromagnetic force the pressure of melt in the coupon has been stirred infundibulate graphite heating body small end thickness.Utilize this device, can in TiAl alloy, high temperature alloy, obtain the high-temperature gradient of 400~700K/cm, and under low melt flow, make and obtained the growth of fine and closely woven straight and upright column crystal in the solidified structure.Therefore, under the electromagnetic induction heating condition, the present invention has realized that in the directional solidification process high temperature gradient low melt body flows.
Four, description of drawings
Fig. 1 is the electromagnetic induction heater structural representation,
Fig. 2 is the structural representation of graphite heating body,
Fig. 3 is a single turn inner conical high-frequency inductor vertical view,
Fig. 4 is a single turn inner conical high-frequency inductor A-A sectional view,
Fig. 5 is two circle inner conical high-frequency inductor structural representations,
Fig. 6 is the structural representation of induction heating equipment,
Fig. 7 is the structural representation of specific embodiment.Among the figure:
1. heat insulating board 3. infundibulate graphite heating body 4. inner conical high-frequency inductors on the ceramic crucible 2.
5. coil 6. insulation boards 7. high-frequency induction heating powers 8. vacuum drawn systems
9. vacuum chamber 10. spill radiation baffles 11. cool off with liquid metal 12. water molds
13. following pull system 14. weld structures
Five, embodiment
Present embodiment comprises graphite induction heating equipment, ceramic crucible 1, water mold 12, vacuum chamber 9, vacuum drawn system 8, following pull system 13 and high-frequency induction heating power 7.The frequency of high-frequency induction heating power 7 is 200KHZ, and the external diameter of ceramic crucible 1 is 9mm.
As shown in accompanying drawing 6, the graphite induction heating equipment is made up of coil, high-frequency inductor 4, graphite heating body 3 and last heat insulating board 2.Coil is two circles, adopts the hollow copper tube of 6mm to make, and is enclosed within the high-frequency inductor outer round surface groove, by weld structure 14 and high-frequency inductor seamless link.
The high-frequency inductor 4 usefulness red coppers of annular are made, and are two circles, and it is the arc groove of 6mm that its external peripheral surface has diameter, is used to install coil 5; High-frequency inductor 4 diameter of bores are greater than the external diameter of graphite heating body small end.Two circle high-frequency inductors are to be combined by two single turn high-frequency inductors that structure is identical, direction is opposite.A surface of single turn high-frequency inductor is attenuate gradually from outside to inside, becomes the inclined-plane, and another surface is the plane; And the mounting groove that a turn coil 5 is arranged at the external peripheral surface of single turn high-frequency inductor; The plane of two single turn high-frequency inductors is fit together, formed the inner conical high-frequency inductor 4 of present embodiment.The thickness of high-frequency inductor inner circle is 1/4 of cylindrical place thickness.In the present embodiment, the cylindrical place thickness of high-frequency inductor 4 is 6mm, and the thickness of inner circle is 1.5mm, and smooth transition between cylindrical and the interior circle, makes the interior round-formed taper of high-frequency inductor; For preventing short circuit, between two single turn high-frequency inductors 4 that fit, install insulation board 6 additional.It is the groove that opens circuit of 1.5mm that high-frequency inductor 4 upper edge radial directions have width, and the position of the groove that opens circuit of two circle high-frequency inductors is corresponding.
The graphite heating body made from high-purity electrode graphite 3 is the hollow revolving body, and the internal diameter of its first half and external diameter have formed big end and small end all greater than the internal diameter and the external diameter of Lower Half, and 45 ° of oblique angle transition between end and the small end greatly, makes graphite heating body be infundibulate.The internal diameter of graphite heating body 3 small ends is greater than the external diameter of ceramic crucible.In the present embodiment, in order to ensure the efficient of radiation heating, the distance between the inwall of graphite heating body 3 and ceramic crucible (1) outer wall is 1.5mm.The height of graphite heating body 3 small ends is 13mm, and wall thickness is 9mm.The big end height of graphite heating body 3 is 5mm, and wall thickness is 7mm.Graphite heating body 3 small ends are packed in two circle high-frequency inductor endoporus.
The inwall of graphite heating body 3 small ends, spill radiation baffle 10 mesopore inwalls and last heat insulating board 2 mesopore inwalls are with possessing 1.5~2mm gap between the ceramic crucible 1.The distance that 1.5~2mm is arranged between the external diameter of the internal diameter of inner conical high-frequency inductor 4 with graphite heating body 3.
During installation:
Spill radiation baffle 10 placed contain cooling with on the water mold 12 of liquid metal 11.Embed in the coil mounting groove on high-frequency inductors 4 excircles coil 5 and firm welding; The small end of graphite heating body 3 is packed in two circle high-frequency inductor endoporus, and the tooth shape place of coil inner conical is cooperated with the outer wall of graphite heating body 3 small ends; Last heat insulating board 2 places on the big end of graphite heating body 3, has formed the graphite induction heating equipment.The graphite induction heating equipment is placed on the radiation baffle 10.High-frequency inductor 4 is connected with high-frequency induction heating power 7 by electrode.The mesopore that ceramic crucible 1 passes spill radiation baffle 10, graphite heating body 3 and last heat insulating board 2 is connected with following pull system 13, and and inwall, spill radiation baffle 10 inwalls and last heat insulating board 2 inwalls of graphite heating body 3 small ends with the gap of possessing 1.5~2mm between the ceramic crucible 1.Above assembly is placed vacuum chamber 9 jointly.
Present embodiment is processed into inner conical with induction heater 4, induction heating is forced to the small end of infundibulate graphite heating body 3 in its tooth shape position, small end in infundibulate graphite heating body 3 obtains very high density of heat flow rate, make the coupon in the infundibulate graphite heating body 3 small end position radiation heating ceramic crucibles 1, obtained very high temperature gradient in melt solid/liquid interfaces forward position.The big end of infundibulate graphite heating body 3 is to the coupon preheating in the ceramic crucible 1, guarantees the abundant fusing of coupon under the high withdrawing rate and overheated.Simultaneously, through design, shielded electromagnetic force the pressure of melt in the coupon has been stirred infundibulate graphite heating body 3 small end thickness.Utilize this device, in TiAl alloy, high temperature alloy, obtained the high-temperature gradient of 400~700K/cm, obtained fine and closely woven straight and upright column crystal growth in the solidified structure and do not observed the influence of flowing dendritic growth.Therefore, under the electromagnetic induction heating condition, utilize this device to realize that in the directional solidification process high temperature gradient low melt body flows.

Claims (4)

1.一种电磁感应加热装置,包括石墨感应加热装置、陶瓷坩埚(1)、水冷结晶器(12)、真空室(9)、真空抽取系统(8)、下拉系统(13)和高频感应加热电源(7),辐射挡板(10)置于储有冷却用液态金属(11)的水冷结晶器(12)上,由线圈(5)、高频感应器(4)、石墨加热体(3)和上隔热保温板(2)组成的石墨感应加热装置置于辐射挡板(10)之上,高频感应器(4)通过线圈与高频感应加热电源(7)相连接,陶瓷坩埚(1)穿过凹形辐射挡板(10)、石墨加热体(3)和上隔热保温板(2)的中孔与下拉系统(13)相连接,并将以上组件置于真空室(9)中,其特征在于:1. An electromagnetic induction heating device, comprising a graphite induction heating device, a ceramic crucible (1), a water-cooled crystallizer (12), a vacuum chamber (9), a vacuum extraction system (8), a pull-down system (13) and a high-frequency induction The heating power supply (7), the radiation baffle (10) is placed on the water-cooled crystallizer (12) that stores the liquid metal (11) for cooling, and is composed of a coil (5), a high-frequency inductor (4), a graphite heating body ( 3) The graphite induction heating device composed of the upper heat insulation board (2) is placed on the radiation baffle (10), the high-frequency inductor (4) is connected with the high-frequency induction heating power supply (7) through a coil, and the ceramic The crucible (1) is connected to the pull-down system (13) through the middle hole of the concave radiation baffle (10), the graphite heating body (3) and the upper heat insulation board (2), and the above components are placed in a vacuum chamber In (9), it is characterized in that: a.高频感应器(4)是由两个结构相同、方向相反的单匝高频感应器组合而成;单匝高频感应器的一个表面从外向内逐渐减薄,成为斜面,另一个表面为平面;将两个单匝高频感应器的平面贴合在一起,形成了内锥形高频感应器(4);在两个相贴合的单匝高频感应器(4)之间有绝缘板(6);高频感应器(4)沿半径方向有断路槽;a. The high-frequency inductor (4) is composed of two single-turn high-frequency inductors with the same structure and opposite directions; one surface of the single-turn high-frequency inductor is gradually thinned from the outside to the inside, becoming a slope, and the other The surface is plane; the planes of two single-turn high-frequency inductors are bonded together to form an inner cone-shaped high-frequency inductor (4); between the two fitted single-turn high-frequency inductors (4) There are insulating plates (6) between them; the high-frequency inductor (4) has a circuit breaker along the radial direction; b.石墨加热体(3)一端的内径和外径均大于另一端的内径和外径,形成了大端和小端,并且大端与小端之间45°斜角过渡。b. The inner diameter and outer diameter of one end of the graphite heating element (3) are larger than the inner diameter and outer diameter of the other end, forming a large end and a small end, and a 45° oblique transition between the large end and the small end. 2.如权利要求1所述电磁感应加热装置,其特征在于高频感应器内圆处的厚度为外圆处厚度的1/4。2. The electromagnetic induction heating device according to claim 1, characterized in that the thickness of the inner circle of the high-frequency inductor is 1/4 of the thickness of the outer circle. 3.如权利要求1所述电磁感应加热装置,其特征在于线圈内圆锥形的刃形处与石墨加热体(3)小端的外壁配合。3. The electromagnetic induction heating device according to claim 1, characterized in that the conical blade shape inside the coil cooperates with the outer wall of the small end of the graphite heating body (3). 4.如权利要求1所述电磁感应加热装置,其特征在于石墨加热体(3)小端的内壁、凹形辐射挡板(10)内壁和上隔热保温板(2)内壁同陶瓷坩埚(1)之间保有1.5~2mm的间隙。4. electromagnetic induction heating device as claimed in claim 1, it is characterized in that the inner wall of the graphite heating body (3) small end, the concave radiation baffle (10) inner wall and the upper thermal insulation board (2) inner wall are the same as the ceramic crucible (1) ) with a gap of 1.5 to 2 mm.
CNU2008200297323U 2008-07-25 2008-07-25 Electromagnetic induction heating device Expired - Fee Related CN201234368Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200297323U CN201234368Y (en) 2008-07-25 2008-07-25 Electromagnetic induction heating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200297323U CN201234368Y (en) 2008-07-25 2008-07-25 Electromagnetic induction heating device

Publications (1)

Publication Number Publication Date
CN201234368Y true CN201234368Y (en) 2009-05-06

Family

ID=40620755

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200297323U Expired - Fee Related CN201234368Y (en) 2008-07-25 2008-07-25 Electromagnetic induction heating device

Country Status (1)

Country Link
CN (1) CN201234368Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101636015B (en) * 2008-07-25 2013-01-16 西北工业大学 High temperature gradient low melt flow electromagnetic induction heating device
CN102927815A (en) * 2012-11-08 2013-02-13 哈尔滨工业大学 Suspension type cold crucible continuous melting and casting and directional solidification device
CN103008579A (en) * 2012-12-28 2013-04-03 哈尔滨工业大学 Continuous casting and directional solidification method of titanium aluminum alloy suspended cold crucible
CN103017337A (en) * 2013-01-17 2013-04-03 中国科学院上海应用物理研究所 High-frequency induction fluid heater
CN111154996A (en) * 2020-03-02 2020-05-15 辽宁工业大学 Preparation method and device of titanium-aluminum alloy gamma-TiAl
CN113015274A (en) * 2021-04-19 2021-06-22 芯璨半导体科技(山东)有限公司 Mobile heating device for solid matter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101636015B (en) * 2008-07-25 2013-01-16 西北工业大学 High temperature gradient low melt flow electromagnetic induction heating device
CN102927815A (en) * 2012-11-08 2013-02-13 哈尔滨工业大学 Suspension type cold crucible continuous melting and casting and directional solidification device
CN102927815B (en) * 2012-11-08 2015-01-07 哈尔滨工业大学 Suspension type cold crucible continuous melting and casting and directional solidification device
CN103008579A (en) * 2012-12-28 2013-04-03 哈尔滨工业大学 Continuous casting and directional solidification method of titanium aluminum alloy suspended cold crucible
CN103008579B (en) * 2012-12-28 2014-12-03 哈尔滨工业大学 Continuous casting and directional solidification method of titanium-aluminum alloy suspended cold crucible
CN103017337A (en) * 2013-01-17 2013-04-03 中国科学院上海应用物理研究所 High-frequency induction fluid heater
CN103017337B (en) * 2013-01-17 2014-11-26 中国科学院上海应用物理研究所 High-frequency induction fluid heater
CN111154996A (en) * 2020-03-02 2020-05-15 辽宁工业大学 Preparation method and device of titanium-aluminum alloy gamma-TiAl
CN113015274A (en) * 2021-04-19 2021-06-22 芯璨半导体科技(山东)有限公司 Mobile heating device for solid matter

Similar Documents

Publication Publication Date Title
CN101636015B (en) High temperature gradient low melt flow electromagnetic induction heating device
CN201234368Y (en) Electromagnetic induction heating device
CN102021643B (en) Method and device for directionally solidifying liquid-solid interface based on alternating magnetic field modulation
CN102927815B (en) Suspension type cold crucible continuous melting and casting and directional solidification device
CN102935506B (en) Continuous suspension type directional solidification casting device of cold crucible
US9744588B2 (en) Melting furnace for producing metal
CN102658362B (en) A water-cooled copper crucible directional solidification method for ultra-high temperature Nb-Si based alloys
CN203508950U (en) Device for inducing molten metal to carry out rapid and mass nucleation through rotary rod
CN204438766U (en) A kind of directional solidification magnetic suspension induction melting water jacketed copper crucible
CN104745843B (en) Device and method for preparing and rheoforming automatic alloy rheological slurry
CN106623832A (en) Preparation device and method of aluminum alloy ingot with ultra-large dimension
CN101562920B (en) High Temperature Gradient Directional Solidification Conical Graphite Induction Heater
CN102409188A (en) Method for preparing semi-solid alloy by centrifugal chilling
CN112616303B (en) Structure for shielding magnetic field in HRS (high resolution scanner) legal directional solidification process
CN101797639A (en) Device for directionally solidifying by locally and forcibly heating with resistance at high gradient
CN206444547U (en) A kind of permanent magnetism agitating apparatus for metal semi-solid slurrying
CN112393588A (en) Induction smelting cold crucible with full suspension and strong stirring capacity
CN102072649A (en) Cold crucible induction heating suspension furnace
CN101130207A (en) A kind of equipment for preparation and rheological molding of semi-solid metal slurry
CN101168187A (en) Low temperature medium frequency electromagnetic field assisted casting method for hard aluminum alloy flat ingot
CN114178499A (en) A kind of continuous preparation method and device of homogeneous immiscible alloy material
CN211177921U (en) Multifunctional suspension smelting furnace with clamping and lifting device
CN107517024A (en) Electromagnetic levitation coil for levitation of 10-100g metal material without container
CN106890962A (en) A kind of compound method and device for preparing semi solid slurry
CN217110439U (en) Cold crucible induction melting system

Legal Events

Date Code Title Description
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: 20090506

Termination date: 20110725