WO1991000487A1 - Unite de fusion pour un four a induction de fusion de metal - Google Patents

Unite de fusion pour un four a induction de fusion de metal Download PDF

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Publication number
WO1991000487A1
WO1991000487A1 PCT/SU1989/000176 SU8900176W WO9100487A1 WO 1991000487 A1 WO1991000487 A1 WO 1991000487A1 SU 8900176 W SU8900176 W SU 8900176W WO 9100487 A1 WO9100487 A1 WO 9100487A1
Authority
WO
WIPO (PCT)
Prior art keywords
melting
crucible
metal
unit
induction furnace
Prior art date
Application number
PCT/SU1989/000176
Other languages
English (en)
Russian (ru)
Inventor
Vladimir Fedorovich Solinov
Oleg Vladimirovich Shaev
Raisa Ivanovna Grichevskaya
Zoya Fedorovna Nesterova
Tatyana Fedorovna Ivanova
Mikhail Borisovich Borisov
Tamara Alexandrovna Pashkova
Serafim Maximovich Brekhovskikh
Anatoly Filippovich Trefilov
Boris Lazarevich Soloviev
Vasily Matveevich +Di Stepanov
Original Assignee
Stepanova, Nina Mikhailovna +Hf
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 Stepanova, Nina Mikhailovna +Hf filed Critical Stepanova, Nina Mikhailovna +Hf
Priority to PCT/SU1989/000176 priority Critical patent/WO1991000487A1/fr
Publication of WO1991000487A1 publication Critical patent/WO1991000487A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/06—Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/22—Furnaces without an endless core
    • H05B6/24—Crucible furnaces

Definitions

  • the invention applies to induction melting furnaces, 5 a b More specifically, to the melting units of an induction furnace for metal smelting.
  • a melting unit is known ( ⁇ , ⁇ , 349863, 49 ⁇ 8 ⁇ ), containing a stuffed crucible.
  • ⁇ , ⁇ , 349863, 49 ⁇ 8 ⁇ A melting unit is known ( ⁇ , ⁇ , 349863, 49 ⁇ 8 ⁇ ), containing a stuffed crucible.
  • the use of these crucibles 10 in induction furnaces leads to an increased rejection of the surface and the melting of the metal for zas ⁇ rakam and plenam.
  • a melting unit is known (° ⁇ , ⁇ , 3602244) containing a melting crucible placed in a protective glass, which is inductively sealed.
  • a melting unit When operating a furnace with such a melting unit, the entire unit will be replaced with the next addition of all power supply and water lines, which complicates the operation of the induction melting furnace and increases the labor costs of its maintenance.
  • Known melting unit ⁇ v, ⁇ , 4160796
  • the melting crucible is made of zirconia
  • the capsule is made of aluminosilicate.
  • the bottom of the crucible is made concave to create certain conditions for the contact of the metal ingot with the bottom of the crucible to avoid the occurrence of heat shocks 30 strokes. This ensures minimal heat transfer between the crucible and the metal ingot.
  • Pigel is made with the use of static pressing. During the operation of the melting unit, to the extent necessary, they replace the entire ceramic installation - a crucible with a welded capsule - by extracting it from ⁇ zhu ⁇ a.
  • the specified instruction is difficult to manufacture and operate, so it is necessary to observe the accuracy of coupling the external surface of the capsule with the internal versatility ⁇ zhu- ⁇ a. This leads to difficulties in the manufacture of a smelter - 2 - node, "also when installing a crucible with a capsule and its quick 8. zne. observance is required
  • Zinc crucibles have a few metal fittings
  • the problem is solved by the fact that in the melting unit of an induction furnace for melting metal, containing a melting crucible placed in a protective ceramic shell, and ⁇ hozed ind ⁇ , ⁇ attractive protective
  • the melting crucible is made in the form of glasses, axially mounted and turned to each other ⁇ nny parts with ⁇ formation ⁇ of the entire ⁇ ve ⁇ n ⁇ sti sta ⁇ an ⁇ in z ⁇ a, filled ⁇ nn ⁇ g ⁇ tepl ⁇ pr ⁇ dn ⁇ y mass ⁇ y, ⁇ providing the specified
  • the melting unit is installed on the base, it is equipped with rods located along its perimeter with - - clamping bars installed on the lower bar with the possibility of reverse-transitional movement through the bar and interaction with the water cooled indu ⁇ m and ⁇
  • the proposed invention allows the replacement of the melting crucible in the process of operation within 3-5 minutes and does not require dismantling of the melting unit.
  • the crucible is freely installed in the nest of the indus in the smelting unit - Yu la.
  • a melting unit with a quick-change crucible ensures the preservation of the current purity of the metal and has an increased guaranteed work resource (at least 60 melts) pr and ⁇ su the effects of the interaction of the melt with the material of the crucible, which provides the possibility of operation on the
  • the melting unit is installed on base 7, which is equipped with rods 8, located along its perimeter, and clamping bars 9.
  • Glasses 1.2 of the melting pot and protective skin ⁇ 5 are made of
  • Cup I is made with a protruding downcomer and is protected by a metal-resistant coating 4, which ensures the absence of interaction between the melt and
  • the development of the smelting crucible is carried out on a standard operation by known methods from cheap, non-deficient raw materials.
  • the manufacturing technology of the melting crucible is highly productive and requires low energy consumption.
  • glass I When assembling the melting crucible, glass I is inserted into glass 2 with full confidence.
  • the filling is filled with heat-water granules with a mass of 3 with ⁇ mi ⁇ - solid ⁇ i, transiently za ⁇ and excluding pr ⁇ and life metal falling granular mass 3 into the melt and precipitation of it pr and ⁇ te ⁇ igla.
  • the calorific mass 3 compensates for the earthen shocks created during heating, melting and compressing the metal into the iron mold. This higher temperature of the melting crucible under conditions of higher values of the temperature gradient prevents the formation and development of ⁇ cracks, reduces temperature gradients along the height and thickness of the crucible wall, which contributes to an increase in its work efficiency.
  • the surface of the inductor 6 is developed by the daily layer of glass, is installed on the base 7 and a protective glass is inserted into it zhu ⁇ 5, ⁇ y in the case of melting of the smelting crucible pred ⁇ anyaet twists and v ⁇ g ⁇ g ⁇ tsdu ⁇ réelle 6 ⁇ ⁇ falling into the bottom of the melting metal.
  • the smelting unit is fixed on base 7, ⁇ m ⁇ g ⁇ , with the help of the clamping plan 9, the northward movement of the smelter is limited needle.
  • the smelting unit After installation of the smelting unit, it is ready for operation without additional heating of the crucible.
  • Replacing the melting crucible under the conditions of continuous operation of the induction furnace is carried out as follows. Planks 9, which press the melting crucible, move it into the wall, effortlessly remove the hot melter with tongs - 5 - crucible from the protective sleeve 5;
  • the smelting crucible is not required before operation.
  • Heating of metal 5 for a temperature of ⁇ 650 ° C Alla, ⁇ aya is determined by the power of the generator.
  • the metal can be loaded into the crucible in the form of a compact, the concrete in the form of a solid return, which does not affect the work -
  • the proposed design of the melting unit with a ceramic composite melting crucible which has the highest thermal stability and metalloustoychivnostyu, allows replace it during operation within 3-5 minutes.
  • the proposed melting furnaces ensure the preservation of the use of the current purity of the metal, the melting of the metal in any mode of operation of the induction furnace for s due to the absence of interaction between the metal melt and the material of the crucible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Furnace Details (AREA)

Abstract

L'unité de fusion, selon l'invention, comprend un creuset de fusion situé dans une enveloppe de protection en céramique (5) entourée par un inducteur refroidi par de l'eau. Le creuset de fusion se compose de manchons (1, 2) montés coaxialement et dont les parties inférieures sont tournées l'une vers l'autre. Lesdits manchons (1, 2) sont montés de manière à présenter un espace sur toute leur longueur, cet espace étant rempli d'une masse thermoconductrice (3). La surface intérieure du manchon intérieur (1) comporte un revêtement résistant au métal.
PCT/SU1989/000176 1989-06-29 1989-06-29 Unite de fusion pour un four a induction de fusion de metal WO1991000487A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SU1989/000176 WO1991000487A1 (fr) 1989-06-29 1989-06-29 Unite de fusion pour un four a induction de fusion de metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1989/000176 WO1991000487A1 (fr) 1989-06-29 1989-06-29 Unite de fusion pour un four a induction de fusion de metal

Publications (1)

Publication Number Publication Date
WO1991000487A1 true WO1991000487A1 (fr) 1991-01-10

Family

ID=21617498

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SU1989/000176 WO1991000487A1 (fr) 1989-06-29 1989-06-29 Unite de fusion pour un four a induction de fusion de metal

Country Status (1)

Country Link
WO (1) WO1991000487A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677166A (zh) * 2012-06-08 2012-09-19 常州天合光能有限公司 一种多晶硅铸锭用梯度坩埚的制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU171874A1 (ru) * В. И. Сауков , Б. С. Уткин Тигель вакуумной плавильной печи
US3151852A (en) * 1958-07-09 1964-10-06 Chrysler Corp Process for obtaining metal carbide coatings on base materials and metal carbide structures produced thereby
GB1442129A (en) * 1973-01-17 1976-07-07 British Aluminium Co Ltd Containers for molten metal
SU659869A1 (ru) * 1976-02-04 1979-04-30 Предприятие П/Я М-5812 Многослойный тигель
SU1328653A1 (ru) * 1985-12-29 1987-08-07 Предприятие П/Я М-5409 Индукционна плавильна печь

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU171874A1 (ru) * В. И. Сауков , Б. С. Уткин Тигель вакуумной плавильной печи
SU187949A1 (fr) *
US3151852A (en) * 1958-07-09 1964-10-06 Chrysler Corp Process for obtaining metal carbide coatings on base materials and metal carbide structures produced thereby
GB1442129A (en) * 1973-01-17 1976-07-07 British Aluminium Co Ltd Containers for molten metal
SU659869A1 (ru) * 1976-02-04 1979-04-30 Предприятие П/Я М-5812 Многослойный тигель
SU1328653A1 (ru) * 1985-12-29 1987-08-07 Предприятие П/Я М-5409 Индукционна плавильна печь

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677166A (zh) * 2012-06-08 2012-09-19 常州天合光能有限公司 一种多晶硅铸锭用梯度坩埚的制备方法
CN102677166B (zh) * 2012-06-08 2015-06-03 常州天合光能有限公司 一种多晶硅铸锭用梯度坩埚的制备方法

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