• 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:
    A method of cooling a flow of a molten material involves simultaneously subjecting the flow to a stirring action which is such that the temperature of the material is substantially the same at any point in any one plane perpendicular to the direction of flow. The cooling may be applied to a molten material to bring it either closer to its melting point or liquidus temperature or to bring it within its freezing range where this is desired as in, for example, the production of metallic slurries. In apparatus for cooling a flow of a molten material having means for cooling and means for simultaneously stirring the flow, both means preferably comprise at least one element extending transversely within a duct through which the flow is directed. The element, which may be a hollow rod arranged to carry a flow of a coolant, is preferably made of a highly conducting material e.g. graphite or a metal whereas the walls of the duct are preferably of a insulating material. By this means nearly all of the cooling effect can be concentrated In the elements which permits close control over the cooling action. The number, arrangement and size of the elements will depend on the degree of cooling required and on the amount of stirring which is necessary to achieve even cooling along the duct. The cooled flow, after passing through the duct, is conveniently led into a mould or series of moulds or into a casting machine in which solidification to give a shaped article takes place.
    公开号:SU1170960A3
    申请号:SU792859603
    申请日:1979-11-26
    公开日:1985-07-30
    发明作者:Фогель Альфредо
    申请人:Министр Промышленности；
    IPC主号:
    专利说明:

    I
    The invention relates to metallurgy, in particular to the unwieldy process of metals and alloys.
    The aim of the invention is to improve the quality of products.
    FIG. 1 schematically shows the proposed device, a general view, in FIG. 2 is a section LL in FIG. one.
    A device for continuous casting of metal products comprises a container 1 with an outlet 2 and a glass 3 connected by means of a casting pipe 4 arranged horizontally with a mold 5, for example, a mold of a continuous casting machine. The casting tube 4 is made of a refractory heat-insulating material, for example refractory ceramics, and has cooling elements 6 arranged perpendicular to the flow of molten metal, and at least one cooling element is made of a material with high thermal conductivity, such as graphite. The cooling elements 6 are made in the form of rods passing through the holes 7 drilled in the wall of the casting tube A and may extend beyond the outer surface of the casting tube 4. The cooling elements 6 are hollow to allow passage of a cooler, for example, water or air, and are located along the longitudinal axis of the casting tube 4, while the axes of the adjacent cooling elements 6 are mutually perpendicular to each other. The casting mold 5, for example, the mold maker of the continuous casting, contains a cooled ringed copper casing 8 in which a graphite block 9 is placed, bonded to the end of the casting tube 4, a hapa of pulling rollers 10 is placed. 11 and 12.
    The ycTposicTBa rasppa is implemented as follows.
    The melt is poured into the tank 1 and after being pumped through the pouring tube 4 into the mold of the continuous casting machine into which the seed has been previously introduced. At the same time, a coolant is supplied to the cooling elements 6.
    and the molten metal, the passage through the filling pipe 4 with the cooled rods 6 placed in it, is cooled and a suspension is formed.
    The metal slurry enters the crystallizer where the ingot is formed and with the help of pulling rollers 10 the ingot is drawn out of the crystallizer.
    Example. The molten LM4 aluminum alloy is poured into the tank 1, where it is held at 660 C. From the tank 1, the molten alloy is fed through the nozzle 3 and the pouring tube 4 to the continuous casting mold. The casting tube 4 is made of a refractory ceramic material GC50, which is alumina, reinforced with silica or nioxide fibers. The length of the casting tube is 425mm, the inner diameter is 38 mm, the minimum wall thickness is 29 mm. Ten hollow graphite cooling rods are located across the pipe, each of which has a length of 96 mm and an internal diameter of 15 mm. Rods
    arranged mutually perpendicular to each other at a distance of 20 mm. Air is supplied through the rods, more specifically only in the last two, the temperature of the alloy after the last stretch of the rod is 592 C. An ingot with a diameter of 59 mm is cast at a casting speed of 220 mm / min.
    The invention makes it possible to improve the structure of cast ingots and improve their quality.
    权利要求:
    Claims (7)
    [1]
    1. DEVICE FOR CONTINUOUS CASTING OF METAL PRODUCTS, containing a container with an outlet for molten metal, connected by means of a casting pipe made of refractory heat-insulating material, with a casting mold, characterized in that, in order to improve the quality of products, it is equipped with cooling elements installed in the pipe perpendicular to the flow of molten metal, and at least one cooling element is made of a material with high thermal conductivity.
    [2]
    2. The device according to π. 1, characterized in that the cooling elements are made in the form of rods. .
    [3]
    3. The device according to paragraphs. 1 and 2, characterized in that at least one cooling element is made of graphite.
    [4]
    4. The device according to paragraphs. 1-3, characterized in that at least one cooling element extends beyond the outer surface of the casting pipe.
    [5]
    5. The device according to paragraphs. 1-4, characterized in that at least one cooling element is made hollow for the passage of the cooler - water or air.
    [6]
    6. The device according to paragraphs. 1 and 2, characterized in that the cooling elements are located along the longitudinal axis of the casting pipe, while the axes of adjacent cooling elements are mutually perpendicular to each other.
    [7]
    7. The device according to paragraphs. 1-6, characterized in that the walls of the casting pipe are made of refractory ceramics.
    SU (1 „1170960
    1 I
    类似技术:
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    FI69972C|1986-09-12|METAL CONTAINER CONTAINER
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    同族专利:
    公开号 | 公开日
    CA1178781A|1984-12-04|
    EP0013076B1|1983-09-14|
    GB2037634B|1983-02-09|
    AU5316879A|1980-05-29|
    JPS5573445A|1980-06-03|
    GB2037634A|1980-07-16|
    ES8101955A1|1980-12-16|
    US4434839A|1984-03-06|
    ES486332A0|1980-12-16|
    EP0013076A1|1980-07-09|
    DE2966164D1|1983-10-20|
    AT4629T|1983-09-15|
    AU534529B2|1984-02-02|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB7846197|1978-11-27|
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