Method and apparatus for monitoring a continuous steel casting process

    公开(公告)号:US11673187B2

    公开(公告)日:2023-06-13

    申请号:US16963415

    申请日:2018-12-19

    IPC分类号: B22D11/18

    CPC分类号: B22D11/182

    摘要: A method, an apparatus and a computer readable-medium for monitoring a continuous steel casting process where molten steel is poured from a ladle into a tundish to be transferred through an exit nozzle into a mold. The method includes obtaining a critical superheat temperature value for the molten steel; measuring temperature values of the molten steel over a time period; determining superheat temperature values corresponding to the measured temperature values by comparing the measured temperature values with a liquidus temperature of the molten steel; and predicting a forecast time instance when the critical superheat temperature value is reached.

    Temperature measurement in a chill mold by a fiber optic measurement method
    3.
    发明授权
    Temperature measurement in a chill mold by a fiber optic measurement method 有权
    通过光纤测量方法在冷却模具中进行温度测量

    公开(公告)号:US08939191B2

    公开(公告)日:2015-01-27

    申请号:US13003344

    申请日:2009-07-07

    摘要: A method for measuring the temperature in a mold by a fiber-optic measurement method and a correspondingly designed mold. For this purpose, light waveguides, through which laser light is conducted, are arranged in grooves in the outside surface of the copper mold plate. The temperature at several measurement points along the measurement fiber is determined by a temperature detection system. In particular, the method makes it possible to achieve much greater local resolution of the temperature measurements than that achieved by thermocouples.

    摘要翻译: 一种通过光纤测量方法和相应设计的模具测量模具中的温度的方法。 为此,在铜模板的外表面的沟槽中布置有通过激光照射的光波导。 沿着测量光纤的几个测量点的温度由温度检测系统确定。 特别地,该方法使得可以实现比由热电偶实现的更大的温度测量的局部分辨率。

    Method for estimating and controlling flow pattern of molten steel in continuous casting and apparatus therefor
    4.
    发明授权
    Method for estimating and controlling flow pattern of molten steel in continuous casting and apparatus therefor 有权
    用于连续铸造中的钢水流量图的估计和控制方法及其设备

    公开(公告)号:US06712122B2

    公开(公告)日:2004-03-30

    申请号:US09944029

    申请日:2001-08-31

    IPC分类号: B22D1118

    CPC分类号: B22D11/182 B22D11/16

    摘要: The method for controlling flow pattern of molten steel in continuous casting, comprises the steps of: (a) continuously casting a molten steel injected through an immersion nozzle; (b) measuring temperatures of a copper plate on longer side of the mold in width direction thereof at plurality of points; (c) detecting a flow pattern of the molten steel in the mold based on the time-sequential variations of temperatures of the copper plate at individual measurement points; and (d) controlling the flow pattern to establish a specified pattern on the basis of the detected result. The temperatures of mold copper plate are measured by plurality of temperature measurement elements buried in the rear face of the mold copper plate for continuous casting. The temperature measurement elements are arranged in a range of from 10 to 135 mm distant from the melt surface in the mold in the slab-drawing direction.

    摘要翻译: 用于控制连续铸造中的钢水流动方式的方法包括以下步骤:(a)连续铸造通过浸入式喷嘴喷射的钢水; (b)在多个点处在模具的宽度方向测量模具的长边上的铜板的温度; (c)基于各个测量点处的铜板的温度的时间顺序变化来检测模具中的钢水的流动模式; 以及(d)基于检测结果控制流动模式以建立指定的模式。 模具铜板的温度由埋在模具铜板背面的多个温度测量元件测量,用于连续铸造。 温度测量元件在坯料拉伸方向上与模具中的熔体表面相距10至135mm的范围内布置。

    Apparatus for detecting the level of a molten metal in a mold
    5.
    发明授权
    Apparatus for detecting the level of a molten metal in a mold 失效
    用于检测模具中的熔融金属的水平的装置

    公开(公告)号:US4126041A

    公开(公告)日:1978-11-21

    申请号:US788963

    申请日:1977-04-19

    CPC分类号: G01F23/247 B22D11/182

    摘要: An apparatus for detecting the level of molten metal such as steel in a mold which is particularly effective in continuous casting equipment. The structure is such that, even if any wire in the thermocouples arranged in the direction of the height of the mold breaks, accurate judgement of the level can be made without any difficulty by effective control of a signal processing apparatus connected thereto.

    摘要翻译: 一种用于检测在连续铸造设备中特别有效的模具中的诸如钢等熔融金属的水平的装置。 该结构使得即使沿着模具的高度方向布置的热电偶中的任何线断裂,也可以通过有效地控制与其连接的信号处理装置来进行准确的水平判断。

    Process for predicting the emergence of longitudinal cracks during continuous casting
    7.
    发明授权
    Process for predicting the emergence of longitudinal cracks during continuous casting 有权
    连续铸造期间纵向裂纹的出现预测方法

    公开(公告)号:US08649986B2

    公开(公告)日:2014-02-11

    申请号:US12997778

    申请日:2009-04-30

    IPC分类号: G01B21/30

    摘要: A process for predicting longitudinal cracks during continuous casting of steel slabs. The local strand temperature is measured by thermocouples distributed in the mold wall. In this process, the risk of the strand rupturing as a result of longitudinal cracking is assessed statistically taking into account the current temperature values measured by the thermocouples arranged in the mold and the temperature values determined when no cracks are present.

    摘要翻译: 一种用于预测钢板连铸过程中纵向裂纹的方法。 局部绞线温度是通过分布在模具壁上的热电偶来测量的。 在这个过程中,考虑到当前温度值由布置在模具中的热电偶测量的当前温度值以及当没有裂纹时确定的温度值,在纵向破裂的情况下对断裂线的破裂风险进行了评估。

    CAST SLAB SURFACE TEMPERATURE MEASURING DEVICE USED IN CONTINUOUS CASTING MACHINE
    8.
    发明申请
    CAST SLAB SURFACE TEMPERATURE MEASURING DEVICE USED IN CONTINUOUS CASTING MACHINE 有权
    连铸机中使用的铸铁表面温度测量装置

    公开(公告)号:US20130315279A1

    公开(公告)日:2013-11-28

    申请号:US13984377

    申请日:2012-02-14

    IPC分类号: G01J5/02

    摘要: A temperature measuring device, which is used in a continuous casting machine, measures the surface temperature of a part or all of a cast slab in a width direction of the cast slab, which is drawn from a mold and conveyed by rollers, in a secondary cooling zone of the continuous casting machine. The temperature measuring device includes a support member that is installed on the side of roller support parts by which the rollers are rotatably supported; an arm member of which a proximal portion is rotatably mounted on the support member; and a radiation thermometer which is provided at a distal end portion of the arm member and of which a light receiving opening is disposed at a position corresponding to a height in the range of 1.0 to 4.5 m from the surface of the cast slab.

    摘要翻译: 在连续铸造机中使用的温度测量装置测量从模具拉出并由辊输送的铸坯的宽度方向上的铸坯的一部分或全部的表面温度在次级 连铸机冷却区。 所述温度测量装置包括:支撑部件,其安装在所述辊支撑部分的侧面上,所述辊可旋转地支撑; 臂构件,其近端部分可旋转地安装在支撑构件上; 以及辐射体温计,其设置在所述臂部件的前端部,并且在与所述铸坯的表面相对应的高度为1.0〜4.5μm的位置处设置有光接收口。

    Casting composite ingot with metal temperature compensation
    9.
    发明授权
    Casting composite ingot with metal temperature compensation 有权
    铸造复合锭与金属温度补偿

    公开(公告)号:US08418748B2

    公开(公告)日:2013-04-16

    申请号:US12931724

    申请日:2011-02-09

    IPC分类号: B22D11/00 B22D11/16

    摘要: An exemplary embodiment of the invention provides a method of direct chill casting a composite metal ingot. The method involves sequentially casting two or more metal layers to form a composite ingot by supplying streams of molten metal to two or more casting chambers within a casting mold of a direct chill casting apparatus. Inlet temperatures of one or more of the streams of molten metal are monitored at a position adjacent to an inlet of a casting chamber fed with the stream, and the inlet temperatures are compared with a predetermined set temperature for the stream to determine if there is any difference. A casting variable that affects molten metal temperatures entering or within the casting chambers (e.g. casting speed) is then adjusted by an amount based on the difference of the compared temperatures to eliminate adverse casting effects caused by the difference of the inlet temperature and the set temperature. Preferably an adjustment is selected that causes the monitored temperature to approach the set temperature. Another exemplary embodiment provides equipment for operation of the method.

    摘要翻译: 本发明的示例性实施例提供了一种直接冷却铸造复合金属锭的方法。 该方法包括顺序地浇铸两个或更多个金属层以通过将熔融金属流供应到直接冷却铸造设备的铸模内的两个或多个铸造室中而形成复合锭。 一个或多个熔融金属流的入口温度在与流入的流化室的入口相邻的位置处被监测,并且将入口温度与流的预定设定温度进行比较,以确定是否存在 区别。 然后调整影响进入或流入铸造室内的熔融金属温度(例如铸造速度)的铸造变量,该量基于比较温度的差值,以消除由入口温度和设定温度的差引起的不利铸造效应 。 优选地,选择使所监视的温度接近设定温度的调节。 另一示例性实施例提供了用于该方法的操作的设备。

    Pouring of melts
    10.
    发明授权
    Pouring of melts 失效
    苦口苦

    公开(公告)号:US3570713A

    公开(公告)日:1971-03-16

    申请号:US3570713D

    申请日:1969-04-14

    申请人: SCHLOEMANN AG

    发明人: TROMEL KRISTOF

    摘要: In pouring superheated metal melts from a pouring vessel into an ingot mould or a chill mould, the molten metal is passed through a teeming tube of relatively small cross-sectional area into the mould, and during this passage the whole of the superheat and part of the heat of fusion is withdrawn from the melt, and measurements of the temperature of the melt are made at certain points in the teeming tube and employed for controlling the flow of the molten metal.