• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An electromagnetic casting process and apparatus is described and claimed for electromagnetically casting ingots having at least one corner or region of small curvature, e.g. rectangular ingots, in which means are provided which locally reduce the magnitude of the electromagnetic force field used to shape the ingot in the region of the corners so that metal flow into the corners is promoted. The localised reduction of electromagnetic force field is obtained either by using a non-magnetic screen (32) which provides increased screening in the corner regions of the ingot or by shaping the inductor (11) to provide a greater air gap between the inductor and the ingot in those corner regions. Optionally cooling fluid is applied asymmetrically to the ingot surface so that the solid-liquid interface (25) is locally lowered in the corner regions. Non-magnetic screens which provide increased screening and localised reduction of the force field in the corner regions of the ingot are also claimed.
    公开号:SU1269734A3
    申请号:SU802968563
    申请日:1980-07-10
    公开日:1986-10-07
    发明作者:Колин Ярвурд Джон；Ли Унгарин Гейри；Карл Гол Герхард；Эдвард Тайлер Дерек
    申请人:Олин Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to metal shlurgii, namely to continuous casting of ingots in an electromagnetic field.
    The aim of the invention is to reduce metal losses during subsequent rolling,
    Fig. 1 shows the proposed device, a partial cross-sectional view in Fig. 2, a non-magnetic screen with an increased height of the corner corner sections of the general view; Fig. 3 shows the same with depressions to the outside of the corner sections of the screen; FIGS. 4 and 5 show a non-magnetic screen with an inclination of its walls to the vertical axis of the device, a general view; Fig 6 and 7 - the same, partial cross-section; in fig. 8 and 9 non-magnetic screen with a variable section along its height; in fig. 10 and 11 is the same, partial section; FIG. 12, the screen, is made with a cooling system; Fig 13 15 inductor.
    The device consists of an inductor 1 of a non-magnetically shielded screen 2 and a pipe 3 for supplying a cooler to the ingot 4, and also contains a power source 5 of indy side 1
    Non-magnetic screen 2 is made with different shielding ability around the perimeter of the ingot 4, i.e. the screen 2 can be made with different heights of its corner sections, namely increased compared to the side sections (FIG. 2), with recesses of the corner sections relative to its longitudinal axis (FIG. 3), with inclination of the walls to the vertical axis of the device, with In this case, the angle of inclination of the corner sections is less than the angle of inclination of the adjacent sections (FIGS. 4 and 5), with a cross-section with variable height (FIGS. 8 and 9) or in one piece with the cooling system (FIG. 12).
    In addition, the inductor 1 has a shape that creates an electromagnetic field with different intensity perimeter, and can be made with cavities outward relative to its longitudinal axis, the angular portions of the inductor may have a triangular (FIG. 13) or rectangular (FIG. 14) transverse section and can be connected to adjacent side portions using curved transition portions (FIG. 15).
    The device works as follows.
    Molten metal is fed into inductor 1, where ingot 4 is formed by holding it in the inductor's electromagnetic field and cooling it with the aid of the cooler supplied from pipeline 3. Due to the different design of the non-magnetic screen 2 and inductor 1, the electromagnetic field is weakened in the corner sections of the ingot, and thereby reducing the radius of curvature at the corners of the cast ingot.
    The proposed device allows to reduce metal losses during subsequent rolling.
    权利要求:
    Claims (10)
    [1]
    1. A device for forming in
    the electromagnetic field of continuously cast rectangular ingots containing an inductor, a non-magnetic screen of a closed form and a pipeline for
    supply of a cooler, characterized in that, in order to reduce metal losses during the subsequent interim shielding capacity around the perimeter,
    [2]
    2. A pop device, 1, characterized in that the height of the corner portions of the screen exceeds the height of the adjacent side portions,
    [3]
    3. Device PS PS, 1, o t l and that the corner sections of the screen are made with depressions outward relative to its longitudinal axis.
    [4]
    4. The device According to 1, about tl and which is so that the screen you -. It is filled with a constant cross section, and its walls are inclined to the vertical axis of the device, with the angle of inclination of the corner sections being less than the angle of inclination of the adjacent side sections.
    [5]
    5, the Device in PP. 1-4,
    characterized in that the screen is made with variable m in height with a cross section, wherein the wall thickness of the lower part of the corner parts of the screen exceeds the wall thickness of the adjacent side sections.
    [6]
    6. The device according to claim 1, wherein the ecrad is made in one piece with the laser cooling system and represents a part of its inner wall
    [7]
    7. A device for forming continuously cast rectangular ingots in an electro-magnetic field, which contains an inductor, a non-magnetic screen of a closed form and a pipe for supplying a cooler, characterized in that, in order to reduce metal losses during the subsequent rolling, the inductor is shaped to create an electromagnetic field with different intensity around the perimeter
    [8]
    8. The device according to claim 7, characterized in that the angular portions of the inductor are made r out to the outside of its longitudinal axis, 344
    [9]
    9. The device according to claim 7, characterized in that the angular portions of the inductor have a triangular cross section.
    [10]
    10. The device according to claim 7, wherein the angular portions of the inductor have a rectangular cross section, AND, the device according to claim 7, about the same. that the angular portions of the inductor are connected to adjacent side portions by means of curvilinear transition portions, Priority points: 07.11.79 pp, 1-6 23,11.79 pp, 7-11,
    ..
    X
     &
    AND
    FIG. 7
    /

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    HHHHHHHCHCHCH
    needles
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    同族专利:
    公开号 | 公开日
    DE3063473D1|1983-07-07|
    ES8107068A1|1981-10-01|
    EP0022649A3|1981-01-28|
    ES495710A0|1981-10-01|
    ES492813A0|1981-05-16|
    US4321959A|1982-03-30|
    ES8104930A1|1981-05-16|
    CA1165089A|1984-04-10|
    MX148165A|1983-03-22|
    EP0022649B1|1983-05-25|
    EP0022649A2|1981-01-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2477193C2|2011-02-22|2013-03-10|Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" |Method of making ingots from nonferrous metal alloys|US3702155A|1970-12-09|1972-11-07|Kuibyshevsky Metallurigchesky|Apparatus for shaping ingots during continuous and semi-continuous casting of metals|
    AU462513B2|1971-11-16|1975-06-26|Ordona Trudovogo Krasnogo Znameni Kuibyshevsky Metallurgichesky Zavod Imerti Vi. Lenina|A method FOR CONTINUOUS AND SEMICONTINUOUS CASTING OF METALS ANDAN APPARATUS FOR ARRIVING SAME|
    US4135568A|1977-11-15|1979-01-23|Reynolds Metals Company|Shield for electromagnetic continuous casting system|
    CH625441A5|1977-12-05|1981-09-30|Alusuisse|
    IT1113478B|1978-02-13|1986-01-20|Olin Corp|PROCESS AND APPARATUS FOR COPPER AND COPPER ALLOYS|
    US4161206A|1978-05-15|1979-07-17|Olin Corporation|Electromagnetic casting apparatus and process|
    US4158379A|1978-07-03|1979-06-19|Olin Corporation|Electromagnetic casting method and apparatus|
    US4215738A|1979-03-30|1980-08-05|Olin Corporation|Anti-parallel inductors for shape control in electromagnetic casting|US4471832A|1980-12-04|1984-09-18|Olin Corporation|Apparatus and process for electromagnetically forming a material into a desired thin strip shape|
    US4606397A|1983-04-26|1986-08-19|Olin Corporation|Apparatus and process for electro-magnetically forming a material into a desired thin strip shape|
    US4612972A|1982-01-04|1986-09-23|Olin Corporation|Method and apparatus for electro-magnetic casting of complex shapes|
    US4469165A|1982-06-07|1984-09-04|Olin Corporation|Electromagnetic edge control of thin strip material|
    DE3427940C2|1984-07-28|1995-01-19|Friedhelm Prof Dr Ing Kahn|Methods and devices for controlling the filling of spaces by metal melting with the aid of electromagnetic fields|
    AU589704B2|1985-11-25|1989-10-19|Swiss Aluminium Ltd.|Device and process for the continuous casting of metals|
    FR2609656B1|1987-01-15|1989-03-24|Cegedur|METHOD OF ADJUSTING THE CONTACT LINE OF THE FREE METAL SURFACE WITH THE LINGOTIERE IN A VERTICAL CAST OF PRODUCTS OF ANY SECTION|
    US4796689A|1987-03-23|1989-01-10|Swiss Aluminium Ltd.|Mold for electromagnetic continuous casting|
    US5246060A|1991-11-13|1993-09-21|Aluminum Company Of America|Process for ingot casting employing a magnetic field for reducing macrosegregation and associated apparatus and ingot|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US5646379A| true| 1979-07-11|1979-07-11|
    US06/096,763|US4321959A|1979-07-11|1979-11-23|Electromagnetic casting shape control by differential screening and inductor contouring|
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