CN112325641B - Vacuum smelting induction coil device - Google Patents

Vacuum smelting induction coil device Download PDF

Info

Publication number
CN112325641B
CN112325641B CN202011168734.2A CN202011168734A CN112325641B CN 112325641 B CN112325641 B CN 112325641B CN 202011168734 A CN202011168734 A CN 202011168734A CN 112325641 B CN112325641 B CN 112325641B
Authority
CN
China
Prior art keywords
magnetic field
water cooling
induction coil
generating device
field generating
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.)
Active
Application number
CN202011168734.2A
Other languages
Chinese (zh)
Other versions
CN112325641A (en
Inventor
许荣玉
张柯
蒋保林
叶国晨
唐跃跃
魏放
赵银忠
王玄玄
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.)
Jiangsu Vilory Advanced Materials Technology Co Ltd
Original Assignee
Jiangsu Vilory Advanced Materials Technology Co Ltd
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 Jiangsu Vilory Advanced Materials Technology Co Ltd filed Critical Jiangsu Vilory Advanced Materials Technology Co Ltd
Priority to CN202011168734.2A priority Critical patent/CN112325641B/en
Publication of CN112325641A publication Critical patent/CN112325641A/en
Application granted granted Critical
Publication of CN112325641B publication Critical patent/CN112325641B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00Crucible or pot furnaces
    • F27B14/06Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
    • F27B14/061Induction furnaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00Crucible or pot furnaces
    • F27B14/08Details peculiar to crucible or pot furnaces
    • F27B14/14Arrangements of heating devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00Stirring devices for molten material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27MINDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00Type of treatment of the charge
    • F27M2003/13Smelting
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

The invention discloses a vacuum smelting induction coil device, which comprises a smelting furnace crucible, an induction coil device and an isolation protection layer, wherein the smelting furnace crucible is used for smelting molten metal, the induction coil device is used for generating a magnetic field to enable molten metal in the smelting furnace crucible to flow, the isolation protection layer is used for preventing cracks generated by the smelting furnace crucible from affecting the induction coil device, the induction coil device comprises a main magnetic field generating device and an auxiliary magnetic field generating device, the main magnetic field generating device is arranged outside the smelting furnace crucible and is used for generating a rotating magnetic field to enable molten metal to flow, and the auxiliary magnetic field generating device is arranged at the bottom of the smelting furnace crucible. The invention has the following advantages: through setting up ceramic shell cooperation aerogel, under the effect of isolation protective layer, protection induction coil that can be very big reduces the influence that expend with heat and contract with cold brought simultaneously, and the setting of two induction coil devices can make the internal molten metal of crucible more even at the in-process of stirring, also can improve stirring efficiency simultaneously.

Description

Vacuum smelting induction coil device
Technical Field
The invention relates to the technical field of vacuum melting, in particular to a vacuum melting induction coil device.
Background
The gas atomization method is widely used for preparing metal powder, especially spherical metal powder. In the gas atomization pulverizing process, molten metal liquid needs to flow through the insulating crucible pot body and the flow guide pipe in the tundish in sequence, and then is atomized through the atomizing nozzle. Under vacuum environment, medium frequency induction current with the frequency of 1000-3500 Hz is led to the induction coil, when the induction coil passes through the medium frequency current, the induction current can be generated in the metal material in the furnace according to the law of electromagnetic induction, and the induction current can generate an induction eddy current magnetic field in the metal material. Because the crucible is in a high-temperature state for a long time, cracks are generated in the crucible, the metal liquid infiltrates out of the crucible along the cracks, and if no protective measures are taken, the induction coil can be broken down; in addition, most of the existing electromagnetic coils are single-layer, and the generated rotating magnetic field can only stir the metal solution transversely, so that the stirring inside the crucible body is not uniform enough.
Disclosure of Invention
According to the vacuum melting induction coil device, the problems that an induction coil lacks protection setting and stirring is uneven in the prior art are solved, the induction coil is protected, safety is improved, and molten metal in a crucible body is stirred more uniformly.
The embodiment of the application provides a vacuum melting induction coil device, which comprises a melting furnace crucible, an induction coil device and an isolation protective layer,
the melting furnace crucible is used for melting molten metal,
the induction coil device is used for generating a magnetic field to enable molten metal in the crucible of the melting furnace to flow,
the isolating protective layer is used for preventing cracks generated in the crucible of the melting furnace from affecting the induction coil device,
the induction coil device comprises a main magnetic field generating device and a secondary magnetic field generating device,
the main magnetic field generating device is arranged outside the crucible of the melting furnace and is used for generating a rotating magnetic field to enable molten metal to flow,
the auxiliary magnetic field generating device is arranged at the bottom of the crucible of the melting furnace and is used for applying an alternating electromagnetic field in cooperation with the main magnetic field generating device to strengthen the convection movement of the molten metal,
the main magnetic field generating device and the auxiliary magnetic field generating device are composed of an electromagnetic coil, an upper water cooling ring, a lower water cooling ring and a shell,
the inside of the main magnetic field generating device is provided with a double-layer electromagnetic coil, a water cooling ring and a water cooling ring which are used for generating a superimposed rotating magnetic field,
a single-layer electromagnetic coil, a water cooling ring and a water cooling ring are arranged in the auxiliary magnetic field generating device,
the shell is used for placing and protecting the electromagnetic coil, the upper water cooling ring and the lower water cooling ring,
the electromagnetic coil is used to generate an electromagnetic field,
the upper water cooling ring and the lower water cooling ring are used for cooling the electromagnetic coil,
aerogel is arranged in the shell and used for insulating heat and providing expansion spaces of the electromagnetic coil, the upper water cooling ring and the lower water cooling ring,
the aerogel comprises flaky aerogel and granular aerogel, wherein the flaky aerogel is arranged on two sides of the electromagnetic coil, the water cooling coil and the lower water cooling coil, and the granular aerogel is arranged between the electromagnetic coil, the water cooling coil and the lower water cooling coil.
Preferably, the insulating protective layer material is a mica board.
Preferably, the aerogel is a silica aerogel.
Preferably, the housing is made of a ceramic material.
Preferably, the top of the shell is provided with a material adding port, and the bottom of the shell is provided with a material discharging port.
Preferably, the shell is provided with a water nozzle matched with the upper water cooling ring and the lower water cooling ring.
Preferably, the upper water cooling ring and the lower water cooling ring are wound by copper pipes which are the same as the electromagnetic coils.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
through setting up ceramic shell cooperation aerogel, under the effect of isolation protective layer, protection induction coil that can be very big reduces the influence that expend with heat and contract with cold brought simultaneously, and the setting of two induction coil devices can make the internal molten metal of crucible more even at the in-process of stirring, also can improve stirring efficiency simultaneously.
Drawings
Fig. 1 is a schematic diagram of a vacuum melting induction coil apparatus.
Fig. 2 is a schematic diagram of an induction coil apparatus for vacuum melting.
Fig. 3 is a schematic structural view of a vacuum melting induction coil apparatus.
In the figure, 1, a melting furnace crucible; 2. an induction coil device; 3. an isolation protection layer; 4. a main magnetic field generating device; 5. a secondary magnetic field generating device; 6. an electromagnetic coil; 7. a water cooling ring is arranged; 8. a water cooling ring is arranged; 9. a housing; 10. an aerogel; 11. a material adding port; 12. a discharge port; 13. a water tap.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The invention solves the problems of lack of protection arrangement and uneven stirring of the induction coil in the prior art, realizes protection of the induction coil, improves safety, and ensures that molten metal in the crucible body is stirred more uniformly.
Example 1
Referring to fig. 1-2, a vacuum melting induction coil apparatus includes a melting furnace crucible 1, an induction coil apparatus 2, and an insulating protective layer 3,
the melting furnace crucible 1 is used for melting molten metal,
the induction coil device 2 is used for generating a magnetic field to enable molten metal in the crucible 1 of the melting furnace to flow,
the insulating protective layer 3 serves to prevent cracks generated in the crucible 1 of the melting furnace from affecting the induction coil assembly 2,
the induction coil means 2 comprises primary magnetic field generating means 4 and secondary magnetic field generating means 5,
the main magnetic field generating means 4 is provided outside the crucible 1 for generating a rotating magnetic field to flow the molten metal,
the auxiliary magnetic field generating device 5 is arranged at the bottom of the melting furnace crucible 1 and is used for applying an alternating electromagnetic field in cooperation with the main magnetic field generating device 4 to strengthen the convection movement of the molten metal,
the side part and the bottom of the crucible body are provided with double magnetic fields, and different alternating magnetic fields can be formed in the crucible body through controlling the current magnitude and the current direction of the induction coil by an external variable frequency power supply, so that the control of convection modes such as horizontal rotation, up-down overturning, spiral movement and the like of molten metal is realized;
the main magnetic field generating device 4 and the auxiliary magnetic field generating device 5 are composed of an electromagnetic coil 6, an upper water cooling ring 7, a lower water cooling ring 8 and a shell 9, the upper water cooling ring 7 and the lower water cooling ring 8 can effectively cool the electromagnetic coil 6,
the inside of the main magnetic field generating device 4 is provided with a double-layer electromagnetic coil 6, a water cooling ring 7 and a lower water cooling ring 8 which are used for generating a superposed rotating magnetic field, the two layers of coils generate the rotating magnetic field, the superposition of the magnetic fields strengthens the flow in the crucible body, and the metal melt is more fully stirred, so that the components in the metal melt are more uniformly distributed in the crucible body;
a single-layer electromagnetic coil 6, a water cooling ring 7 and a water cooling ring 8 are arranged in the auxiliary magnetic field generating device 5,
the shell 9 is used for placing and protecting the electromagnetic coil 6, the upper water cooling ring 7 and the lower water cooling ring 8,
the electromagnetic coil 6 is used to generate an electromagnetic field,
the upper water cooling ring 7 and the lower water cooling ring 8 are used for cooling the electromagnetic coil 6,
the aerogel 10 is arranged in the shell 9 and used for insulating heat and providing expansion spaces of the electromagnetic coil 6, the upper water cooling ring 7 and the lower water cooling ring 8, the aerogel 10 not only has good heat insulation, thermal stability and thermal shock resistance, but also has good expansion effect, can realize expansion and contraction along with the synchronization of the electromagnetic coil 6, the upper water cooling ring 7 and the lower water cooling ring 8, avoids the situation of extruding the electromagnetic coil 6, the upper water cooling ring 7 and the lower water cooling ring 8 caused by excessive rigidity, greatly improves the safety,
the aerogel 10 comprises a flaky aerogel and a granular aerogel, the flaky aerogel is arranged at two sides of the electromagnetic coil 6, the water cooling ring 7 and the lower water cooling ring 8,
the sheet aerogel can meet radial expansion requirements and heat insulation, and the electromagnetic coil 6, the water cooling ring 7 and the lower water cooling ring 8 are fixedly supported in the shell.
The granular aerogel sets up between solenoid 6, water-cooling circle 7 and lower water-cooling circle 8, because normal pipeline sets up more closely, is heated and can expand moreover, consequently adopts granular aerogel to fill into between solenoid 6, water-cooling circle 7 and the lower water-cooling circle 8, can play certain thermal-insulated effect between the pipeline, provides the expansion space simultaneously when the inflation, avoids too rigid material unable deformation when the pipeline inflation to lead to the fact the condition emergence that the pipeline breaks.
The isolating protective layer 3 is made of mica plates, and can effectively prevent the metal liquid from continuing to flow to the induction coil.
The aerogel 10 is silica aerogel, the melting point of the silica aerogel is generally about 1545 ℃, the silica aerogel can resist high temperature, and the influence of high temperature on the induction coil can be effectively avoided under the protection of the isolation protection layer 3 and the ceramic shell 9.
The housing 9 is made of ceramic material and has good heat insulation protection.
The top of the shell 9 is provided with a material adding port 11, and the bottom of the shell is provided with a material discharging port 12, so that the inside granular aerogel can be conveniently added and replaced.
The shell 9 is provided with a water nozzle 13 matched with the upper water cooling ring 7 and the lower water cooling ring 8, and circulating cooling water can be conveniently circulated through the water nozzle.
The upper water cooling ring 7 and the lower water cooling ring 8 are wound by copper pipes which are the same as the electromagnetic coil 6, so that the winding is labor-saving and time-saving, and in the heating process, the expansion and contraction of the whole coil are consistent and synchronous, thereby avoiding accidents caused by different internal stresses.
Example two
With reference to fig. 3, the secondary magnetic field generating device 5 can also adopt a double-layer electromagnetic coil 6, a water cooling ring 7 and a water cooling ring 8 structure to provide continuous electromagnetic stirring, strengthen the convection movement of molten metal and maintain the uniformity of molten metal components.
Example III
With reference to fig. 3, the length of the main magnetic field generating device 4 is 1.5-2 times of that of the melting furnace crucible 1, and the main magnetic field generating device can move up and down outside the melting furnace crucible under the drive of external equipment, so that the heating surface between the inner side of the main magnetic field generating device 4 and the melting furnace crucible 1 is continuously changed, one heating surface is prevented from being continuously heated, multiple surface alternate heating is realized, and the service life is prolonged.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
through setting up ceramic shell cooperation aerogel, under the effect of isolation protective layer, protection induction coil that can be very big reduces the influence that expend with heat and contract with cold brought simultaneously, and the setting of two induction coil devices can make the internal molten metal of crucible more even at the in-process of stirring, also can improve stirring efficiency simultaneously.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A vacuum melting induction coil apparatus comprises a melting furnace crucible (1), an induction coil apparatus (2) and an isolating protective layer (3), wherein the melting furnace crucible (1) is used for melting molten metal,
the induction coil device (2) is used for generating a magnetic field to enable molten metal in the crucible (1) to flow, and the isolation protection layer (3) is used for preventing cracks generated by the crucible (1) from affecting the induction coil device (2), and is characterized in that: the induction coil device (2) comprises a main magnetic field generating device (4) and an auxiliary magnetic field generating device (5), the main magnetic field generating device (4) is arranged on the outer side of a melting furnace crucible (1) and is used for generating a rotating magnetic field to enable molten metal to flow, the auxiliary magnetic field generating device (5) is arranged at the bottom of the melting furnace crucible (1) and is used for applying an alternating electromagnetic field in cooperation with the main magnetic field generating device (4) to strengthen the convection motion of the molten metal, the main magnetic field generating device (4) and the auxiliary magnetic field generating device (5) are composed of an electromagnetic coil (6), an upper water cooling coil (7), a lower water cooling coil (8) and a shell (9), the inside of the main magnetic field generating device (4) is provided with a double-layer electromagnetic coil (6), the upper water cooling coil (7) and the lower water cooling coil (8) and is used for generating a superimposed rotating magnetic field, the shell (9) is used for placing and protecting the electromagnetic coil (6), the upper water cooling coil (7) and the lower water cooling coil (8) and the electromagnetic coil (6),
aerogel (10) is arranged in the shell (9) and used for insulating heat and providing expansion spaces of the electromagnetic coil (6), the upper water cooling ring (7) and the lower water cooling ring (8), the aerogel (10) comprises flaky aerogel and granular aerogel, the flaky aerogel is arranged on two sides of the electromagnetic coil (6), the upper water cooling ring (7) and the lower water cooling ring (8), the granular aerogel is arranged among the electromagnetic coil (6), the upper water cooling ring (7) and the lower water cooling ring (8),
the length of the main magnetic field generating device (4) is 1.5-2 times of that of the melting furnace crucible (1), the main magnetic field generating device can move up and down outside the melting furnace crucible under the drive of external equipment, the heating surface between the inner side of the main magnetic field generating device (4) and the melting furnace crucible (1) can be continuously changed, one heating surface is prevented from being continuously heated, and a plurality of surfaces are alternately heated.
2. A vacuum melting induction coil apparatus as set forth in claim 1 wherein: the isolating protective layer (3) is made of mica plates.
3. A vacuum melting induction coil apparatus as set forth in claim 1 wherein: the aerogel (10) is a silica aerogel.
4. A vacuum melting induction coil apparatus as set forth in claim 1 wherein: the housing (9) is made of a ceramic material.
5. A vacuum melting induction coil apparatus as set forth in claim 1 wherein: the top of the shell (9) is provided with a material adding port (11), and the bottom is provided with a material outlet (12).
6. A vacuum melting induction coil apparatus as set forth in claim 1 wherein: the shell (9) is provided with a water nozzle (13) matched with the upper water cooling ring (7) and the lower water cooling ring (8).
7. A vacuum melting induction coil apparatus as set forth in claim 1 wherein: the upper water cooling ring (7) and the lower water cooling ring (8) are wound by copper pipes which are the same as the electromagnetic coil (6).
CN202011168734.2A 2020-10-28 2020-10-28 Vacuum smelting induction coil device Active CN112325641B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011168734.2A CN112325641B (en) 2020-10-28 2020-10-28 Vacuum smelting induction coil device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011168734.2A CN112325641B (en) 2020-10-28 2020-10-28 Vacuum smelting induction coil device

Publications (2)

Publication Number Publication Date
CN112325641A CN112325641A (en) 2021-02-05
CN112325641B true CN112325641B (en) 2024-02-20

Family

ID=74297747

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011168734.2A Active CN112325641B (en) 2020-10-28 2020-10-28 Vacuum smelting induction coil device

Country Status (1)

Country Link
CN (1) CN112325641B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113340113B (en) * 2021-08-04 2021-10-15 佛山市南海区辉泰科技机械有限公司 Hierarchical smelting furnace and using method thereof
CN114318510B (en) * 2021-12-30 2023-09-19 无锡晶名光电科技有限公司 Indium antimonide crystal growth method and crystal growth furnace

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101782324A (en) * 2010-02-05 2010-07-21 新星化工冶金材料(深圳)有限公司 Electromagnetic induction electric melting furnace for controlling average nominal diameter of TiB2(TiC) particle group in Al-Ti-B (Al-Ti-C) alloy
CN104422290A (en) * 2013-09-10 2015-03-18 西安邦合电气设备有限公司 Induction coil device of medium frequency induction smelting furnace
CN106334799A (en) * 2016-11-21 2017-01-18 张森 Method for producing metal powder
CN206865780U (en) * 2017-05-22 2018-01-09 山东神州电炉有限公司 A kind of frequency conversion electric furnace induction coil and upper and lower water cooling circle integral structure
CN108726850A (en) * 2018-06-25 2018-11-02 中国建筑材料科学研究总院有限公司 Pressure controls glass melting device and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101782324A (en) * 2010-02-05 2010-07-21 新星化工冶金材料(深圳)有限公司 Electromagnetic induction electric melting furnace for controlling average nominal diameter of TiB2(TiC) particle group in Al-Ti-B (Al-Ti-C) alloy
CN104422290A (en) * 2013-09-10 2015-03-18 西安邦合电气设备有限公司 Induction coil device of medium frequency induction smelting furnace
CN106334799A (en) * 2016-11-21 2017-01-18 张森 Method for producing metal powder
CN206865780U (en) * 2017-05-22 2018-01-09 山东神州电炉有限公司 A kind of frequency conversion electric furnace induction coil and upper and lower water cooling circle integral structure
CN108726850A (en) * 2018-06-25 2018-11-02 中国建筑材料科学研究总院有限公司 Pressure controls glass melting device and method

Also Published As

Publication number Publication date
CN112325641A (en) 2021-02-05

Similar Documents

Publication Publication Date Title
CN112325641B (en) Vacuum smelting induction coil device
TW201243261A (en) Open bottom electric induction cold crucible for use in electromagnetic casting of ingots
CN1509402A (en) Furnace with bottom induction coil
JP2000515235A (en) Induction furnace for melting glass in cold crucibles
CN201688691U (en) Water cooling-free intermediate frequency furnace of inductor
CN209310483U (en) Crucible type electromagnetic melting furnace
CN107326152B (en) A kind of magnetic heat treatment furnace that performance is stablized
CN107421328A (en) Heating seethes rabble furnace with stirring interlock type electromagnetism
CN202307401U (en) Permanent magnet water-cooled interval winding rotating magnetic field generating device
CN208175019U (en) A kind of high-frequency induction heating apparatus
CN111397367A (en) Furnace shell for medium-frequency induction furnace
CN101122441A (en) Short cold crucible for continuous melting and directional solidification flat blank
CN207113586U (en) Heating seethes rabble furnace with stirring interlock type electromagnetism
JP5186374B2 (en) Melting furnace with an inductor device having a single loop of multiple conductors
CN103591793B (en) A kind of vacuum sintering furnace
CN105222586A (en) A kind of annular water jacketed copper crucible
CN205897846U (en) Intermediate frequency furnace is mended to crucible cover that can effectively increase furnace wall life
CN201828137U (en) Vertical type high temperature spheroidizing furnace
CN219934624U (en) GYT power frequency cored induction furnace
CN214371693U (en) Sectional type intermediate frequency induction smelting electric furnace
CN204100797U (en) induction main frequency furnace
CN217005323U (en) High temperature induction heating furnace inductor, induction heating furnace
CN214950573U (en) High-frequency electromagnetic induction heating smelting furnace
CN108533962A (en) A kind of molten aluminum transport pipe system
KR101307741B1 (en) Cold crucible induction melter including a metal sector having a curved outer surface

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant