Method to control the deformations of the sidewalls of a crystalliser
and continuous-casting crystalliser
    1.
    发明授权
    Method to control the deformations of the sidewalls of a crystalliser and continuous-casting crystalliser 失效
    控制结晶器和连续铸造结晶器侧壁变形的方法

    公开(公告)号:US5762127A

    公开(公告)日:1998-06-09

    申请号:US470453

    申请日:1995-06-06

    CPC分类号: B22D11/055 B22D11/22

    摘要: Crystalliser and method to control the deformations of the sidewalls of a crystalliser (11) for the continuous casting of billets/blooms/slabs (24), which is associated with a mould (10) and cooperates externally with a box-shaped structure (13) creating a cooling chamber (14), in which a cooling fluid circulates, and cooperates internally with the skin of the billets/blooms/slabs (24) being formed, the cooling chamber (14) containing an intermediate wall (20) creating a circulation channel (21) in cooperation with the outer surface of the sidewall (12) of the crystalliser (11), at least one upper zone (37) being included in cooperation at least with the vicinity of the meniscus and with the portion below the meniscus (27) of liquid metal, a lower zone (38) being also included and beginning in the vicinity of the zone of separation of the forming skin from the inner surface of the sidewall (12) of the crystalliser (11) and extending towards the outlet of the crystalliser (11), the pressure of the cooling fluid in the lower zone (38) of the crystalliser (11) being a function of the desired value (g1) of an air interspace (36) between the sidewall (12) of the crystalliser (11) and the skin of the forming billet/bloom/slab (24), this desired value of air interspace (36) tending towards a zero value.

    摘要翻译: 结晶器和控制结晶器(11)的侧壁的变形的方法,用于连续铸造与模具(10)相连的坯料/坯料(24),并且与外壳与箱形结构(13)配合 (14),其中冷却流体循环并与所形成的坯料/坯料/板坯(24)的表皮内部配合,所述冷却室包含中间壁(20),所述中间壁(20)形成 循环通道(21)与结晶器(11)的侧壁(12)的外表面协作,至少一个上部区域(37)至少与弯月面附近配合并且与下部的部分 液体金属的弯月面(27),还包括下部区域(38),并且从成形皮肤与分离器(11)的侧壁(12)的内表面分开的区域附近开始并向着 结晶器(11)的出口, 确定结晶器(11)的下部区域(38)中的冷却流体是结晶器(11)的侧壁(12)和皮肤(11)之间的空气间隙(36)的期望值(g1)的函数 形成坯料/坯料/板坯(24)时,空气间隙(36)的期望值倾向于零值。

    Continuous-casting crystalliser with increased heat exchange and method
to increase the heat exchange in a continuous-casting crystalliser
    2.
    发明授权
    Continuous-casting crystalliser with increased heat exchange and method to increase the heat exchange in a continuous-casting crystalliser 失效
    具有增加的热交换的连续铸造结晶器和用于增加连续铸造结晶器中的热交换的方法

    公开(公告)号:US5611390A

    公开(公告)日:1997-03-18

    申请号:US470454

    申请日:1995-06-06

    CPC分类号: B22D11/22 B22D11/055

    摘要: The crystalliser (11) cooperates externally with a box-shaped structure (13) creating cooling chambers (14), in which a cooling fluid circulates, and cooperates internally with the skin of the billets, blooms or slabs (24) being formed. The cooling chambers (14) containing intermediate walls (20) create circulation channels (21) in cooperation with the outer surfaces (12) of the sidewalls of the crystalliser (11), at least one upper zone (34) being included in cooperation at least with the vicinity of the meniscus and with the portion below the meniscus (33) of liquid metal, a lower zone (26) being also included and beginning in the vicinity of the zone of separation of the forming skin from the inner surfaces (12) of the crystalliser (11) and extending towards the outlet of the crystalliser (11). By acting on the cross-section and/or conformation of at least one longitudinal portion of at least one side of the cross-section of the circulation channels (21), e.g., by providing elements to disturb the flow of cooling fluid in the circulation channels (21), and by acting on the different pressures of the cooling fluid present between the inlet and outlet of that longitudinal portion of the circulation channels (21) a desired turbulence of the cooling fluid is created which is such as to increase the coefficient of heat exchange to a value greater than 40,000 W/m.sup.2 K. The side walls of the crystallizer preferably have a thickness between 4 and 15 mm.

    摘要翻译: 结晶器(11)在外部与一个形成冷却室(14)的箱形结构(13)配合,其中冷却流体循环,并与内部形成的坯料,花纹或板坯(24)的内部配合。 包含中间壁(20)的冷却室(14)与结晶器(11)的侧壁的外表面(12)配合产生循环通道(21),至少一个上部区域(34)在 至少与弯月面附近并且与液态金属的弯液面(33)下方的部分一起,还包括下部区域(26),并且从成形皮肤与内表面(12)的分离区域附近开始 )和结晶器(11)的出口延伸。 通过作用于循环通道(21)的横截面的至少一侧的至少一个纵向部分的横截面和/或构造,例如通过提供元件来扰乱循环中的冷却流体的流动 通道(21),并且通过作用于存在于循环通道(21)的该纵向部分的入口和出口之间的冷却流体的不同压力,产生了所需的冷却流体的湍流,这样使得系数 的热交换值大于40,000 W / m2K。 结晶器的侧壁优选地具有4至15mm的厚度。

    Method to load scrap for electric arc furnace and relative system

    公开(公告)号:US6157665A

    公开(公告)日:2000-12-05

    申请号:US381913

    申请日:1999-09-27

    摘要: Method to load scrap for electric arc furnace including at least a roof (13) associated with movable moving means (17) cooperating with second movable moving means (24), the roof (13) including at least a hole (15) to discharge the fumes (16), the scrap (22) being contained in baskets (21), there being included at least a system to process the fumes (32) connected with the chimney, the full basket (21) including at least a first position (21a) to pre-heat the scrap arranged at the side of and in proximity to the furnace (10) and a second position (21b) to unload the scrap arranged in cooperation with the mouth of the furnace (10), the movable moving means (24) of the basket (21) and the movable moving means (17) of the roof (13) being functionally associated at least momentarily, the basket (21) containing the scrap being installed in a removable manner on the second movable moving means (24) and being associated at least temporally with a covering system (29), which can be translated from a closed position to an open position, the fumes (16) leaving the fourth hole (15) of the furnace (10) being sent inside the basket (21) containing the scrap (22) through a discharge duct which connects an inlet aperture (27) included on the covering system (29) with the fourth hole of the furnace (13), the fumes (16) being made to leave the basket (21) through an outlet aperture cooperating with the bottom of the furnace (13), the fumes (16) being made to leave the basket (21) through an outlet aperture cooperating with the bottom of the basket (21) and directly connected with a combustion chamber (28), the roof (13) passing from its first closed position (13a) to its second open position (13b) in coordination with the passage of the basket (21) from its first pre-heating position (21a) to its second unloading position (21b).

    System to load pre-heated scrap by means of baskets for electric arc
furnace
    4.
    发明授权
    System to load pre-heated scrap by means of baskets for electric arc furnace 失效
    通过电弧炉筐装载预热废料的系统

    公开(公告)号:US6157664A

    公开(公告)日:2000-12-05

    申请号:US381912

    申请日:1999-09-27

    摘要: System to load pre-heated scrap by means of baskets for electric arc furnace, the furnace including a movable roof (28), at least one basket (15) loaded with scrap being arranged in a lateral position near the furnace, the basket (15) being associated with a movable covering system (18), there being included at least a pipe (20) connecting the fourth hole of the furnace with the inside of the basket (15) to convey the fumes leaving the furnace (12) with the function of pre-heating the scrap, the pipe (20) being associated with the covering system (18) and able to be moved therewith, the basket (15) being associated with moving means (16a).

    摘要翻译: PCT No.PCT / IB98 / 00428 Sec。 371 1999年9月27日第 102(e)1999年9月27日PCT PCT 1998年3月23日PCT公布。 第WO98 / 46956号PCT公开 日期1998年10月22日通过电弧炉用篮子装载预热废料的系统,炉子包括可移动屋顶(28),至少一个装有废料的篮子(15)布置在靠近炉子的侧面位置 ,所述篮子(15)与可移动覆盖系统(18)相关联,所述至少一个管道(20)将所述炉子的第四孔与所述篮子(15)的内部连接,以输送离开炉子的烟雾 (12)具有预热废料的功能,管道(20)与覆盖系统(18)相关联并且能够与其一起移动,篮子(15)与移动装置(16a)相关联。

    Cooled basket for steel plants
    5.
    发明授权
    Cooled basket for steel plants 失效
    钢厂冷却篮

    公开(公告)号:US6163561A

    公开(公告)日:2000-12-19

    申请号:US381914

    申请日:1999-09-27

    摘要: Basket to manipulate scrap in cooperation with an arc furnace (11) and with means to pre-heat the scrap by means of the fumes from the fourth hole (14), the basket being able to be associated with a movable covering system (16) and including a containing body, a bottom equipped with toothed lower closing means which may be momentarily opened, and lateral extensions for moving and positioning the basket, the containing body comprising a first upper part (10a) which acts as a buffer store to temporally increase the capacity of the basket (10) and a second lower part (10b) to contain the scrap, with a capacity substantially mating with the volume of the load of the melting furnace (110) which it has to feed, wherein the second lower part (10b) is associated with cooling means.

    摘要翻译: PCT No.PCT / IB98 / 00427 Sec。 371 1999年9月27日第 102(e)1999年9月27日PCT PCT 1998年3月23日PCT公布。 公开号WO98 / 42880 日期1998年10月1日用于与电弧炉(11)配合操作废料的垫片,并且借助于来自第四孔(14)的烟雾来预热废料的装置,该篮子能够与可移动的 覆盖系统(16)并且包括容纳体,底部配备有可以短暂打开的齿形下闭合装置和用于移动和定位篮子的侧向延伸部分,所述容纳体包括第一上部部分(10a) 缓冲存储器,以暂时地增加篮子(10)的容量和第二下部(10b)以容纳废料,其容量基本上与其必须进给的熔炉(110)的负载体积相配合, 其中所述第二下部(10b)与冷却装置相关联。

    Rolling stand which can be converted into a four-high stand or universal
stand, and rolling line which employs such convertible stand
    6.
    发明授权
    Rolling stand which can be converted into a four-high stand or universal stand, and rolling line which employs such convertible stand 失效
    可以转换成四高架或通用支架的滚动架,以及采用这种可转换架的轧制线

    公开(公告)号:US4905493A

    公开(公告)日:1990-03-06

    申请号:US218150

    申请日:1988-07-13

    摘要: Rolling stand which can be converted into a four-high stand or universal stand, comprising two coordinated pairs of roll standards (13) mounted on a base plate (11), said roll standards being able to support a universal stand roll assembly (24) or a four-high stand roll assembly (25), said roll standards being longitudinaly movable and able to be reciprocally positioned at least in their working position on said base plate (11), each pair of roll standards permanently bearing two main standardized housings (14) together with their associated devices (15) for adjusting the distance between the centers of the rolls, said devices (15) cooperating with supports (16) comprised in said roll standards (13), said main housings (14) supporting horizontal axis rolls (35), either the vertical axis rolls (28) belonging to an universal stand roll assembly (24) or the horizontal axis rolls (36) of a four-high roll assembly (25) being located within the interspace comprised between two main housings (14) of each pair of roll standards (13 ).Rolling line which comprises a plurality of stand bodies (10) with end frames (34), on which (34) are installed assemblies (24) for conversion of the stands into universal stands able to roll I-beams, H-beams and like sections.

    Plant to convert a metallic charge into semifinished products, and
connected smelting and casting method
    7.
    发明授权
    Plant to convert a metallic charge into semifinished products, and connected smelting and casting method 失效
    将金属电荷转化为半成品,并连接冶炼和铸造方法

    公开(公告)号:US4797154A

    公开(公告)日:1989-01-10

    申请号:US100615

    申请日:1987-09-24

    摘要: Integrated plant (10) to convert a metallic charge continuously into semi-finished products such as billets, blooms, slabs, bars or ingots, which comprises in close cooperation a chamber (14) to pre-heat a controlled metallic charge, the chamber (14) including a burner (15) and a terminal feeder (16) feeding an electric furnace (17) with a controlled flow, and comprises also the electric furnace (17), a continuously functioning transformer (26), a multifunction manipulator (20) with two independent arms able to rotate circumferentially and to move vertically to handle two ladles (18) at one and the same time at least between a tapping station of the electric furnace (17) and a casting and tapping station (21), and at least one casting and tapping station (21) served by a tundish feeding liquid metal continuously, a station to refine the liquid metal in the ladle (18) being located between the tapping station of the furnace (17) and the tapping and casting station (21).Smelting method obtained with the plant (10) of the claims hereinbefore, which feeds molten metal continuously at least to one casting station (21) by means of two ladles (18) feeding a tundish alternately and starts with a pre-set and variable metallic charge, such metallic charge being fed continuously in the opposite direction to heating means in a pre-heating chamber (14), such charge feeding continuously with an adjustable flow an electric furnace (17) when liquid metal is tapped regularly and partially into ladles (18) able to move along a circumference, in which method the liquid metal is treated and refined in the ladle (18) before being delivered by one of the ladles (18) alternately into a tundish which transfers it continuously to the casting station (21) while the other ladle (18) is engaged in succession in operations of preparation, charging and refining, the cycle proceeding continuously without operating interference.

    Plant to convert a metallic charge into semifinished products
    8.
    发明授权
    Plant to convert a metallic charge into semifinished products 失效
    将金属电荷转化成半成品的工厂

    公开(公告)号:US4898227A

    公开(公告)日:1990-02-06

    申请号:US261390

    申请日:1988-10-24

    摘要: Integrated plant (10) to convert a metallic charge continuously into semi-finished products such as billets, blooms, slabs, bars or ingots, which comprises in close cooperation a chamber (14) to pre-heat a controlled metallic charge, the chamber (14) including a burner (15) and a terminal feeder (16) feeding an electric furnace (17) with a controlled flow, and comprises also the electric furnace (17), a continuously functioning transformer (26), a multifunction manipulator (20) with two independent arms able to rotate circumferentially and to move vertically to handle two ladles (18) at one and the same time at least between a tapping station of the electric furnace (17) and a casting and tapping station (21), and at least one casting and tapping station (21) served by a tundish feeding liquid metal continuously, a station to refine the liquid metal in the ladle (18) being located between the tapping station of the furnace (17) and the tapping and casting station (21).Smelting method obtained with the plant (10) of the claims hereinbefore, which feeds molten metal continuously at least to one casting statio (21) by means of two ladles (18) feeding a tundish alternately and starts with a pre-set and variable metallic charge, such metallic charge being fed continuously in the opposite direction to heating means in a pre-heating chamber (14), such charge feeding continuously with an adjustable flow an electric furnace (17) when liquid metal is tapped regularly and partially into ladles (18) able to move along a circumference, in which method the liquid metal is treated and refined in the ladle (18) before being delivered by one of the ladles (18) alternately into a tundish which transfers it continuously to the casting station (21) while the other ladle (18) is engaged in succession in operations of preparation, charging and refining, the cycle proceeding continuously without operating interference.

    Extrusion press
    9.
    发明授权
    Extrusion press 失效
    挤压机

    公开(公告)号:US4895506A

    公开(公告)日:1990-01-23

    申请号:US168884

    申请日:1988-03-03

    摘要: A direct or indirect extrusion press is disclosed, which includes a container (20) that defines a chamber (19) to hold a billet (11) to be extruded, a ram (12), a die (14), a die holder (41), a base (13) and a shears (15) to shear heels (17) of the billets (11). The die (14) is movable axially to the container (20) or vice versa. The container (20) defines at least two chambers (19) and is movable in a plane perpendicular to the plane on which the axis of the chamber (19) and the die (14) lies. An extrusion plant which includes a press as described above is also disclosed. The extrusion plant includes three stations that perform extrusion (19a), charging (19b) and the cleaning and readying of chambers (19c) respectively, the stations cooperating respectively with the chambers (19).

    Furnace with refractory longitudianl members and with central charging
for heating and storing hot products
    10.
    发明授权
    Furnace with refractory longitudianl members and with central charging for heating and storing hot products 失效
    炉具有耐火纵向构件,中央充电用于加热和储存热产品

    公开(公告)号:US5391034A

    公开(公告)日:1995-02-21

    申请号:US884177

    申请日:1992-05-18

    摘要: Furnace with refractory longitudinal members and with central charging for heating and storing hot products, whereby the central charge arrives from a continuous casting plant or from previous hot processes, the furnace (10) comprising a first furnace portion (10a) for the introduction of a cold charge (12) and for storage and also a second furnace portion (10b) for discharge of the heated charge (15), the first (10a) and second (10b) furnace portions comprising stationary longitudinal members (23) and movable longitudinal members (24), the central charging taking place between the first (10a) and second (10b) furnace portions, a central intake and guide channel (22) being defined as a furnace bed by the plurality of stationary longitudinal members (23) cooperating with the respective plurality of movable longitudinal members (24a-24b) of the first (10a) and second (10b) furnace portions, the movable longitudinal members (24a-24b) in their raised position substantially facing each other, the width of the central intake and guide channel (22) and possibly the height of the movable longitudinal members (24) depending on the cross section of the hot product (26) being charged.

    摘要翻译: 具有耐火纵向构件并具有用于加热和储存热产物的中心充电的炉,由此中心电荷从连续铸造设备或从先前的热过程到达,炉(10)包括用于引入 第一(10a)和第二(10b)炉部分包括静止的纵向构件(23)和可移动的纵向构件 (24),在第一(10a)和第二(10b)炉部之间发生中心充电,中心进气和导向通道(22)被多个静止纵向构件(23)定义为炉床,所述静止纵向构件(23)与 第一(10a)和第二(10b)炉部分的相应的多个可移动纵向构件(24a-24b),可移动纵向构件(24a-24b)在其升高位置基本上面对每个 r,中央进气和导向通道(22)的宽度以及可能的可移动纵向构件(24)的高度,这取决于被加热的热产品(26)的横截面。