Method of controlling steel strip temperature in continuous heating
equipment
    10.
    发明授权
    Method of controlling steel strip temperature in continuous heating equipment 失效
    连续加热设备钢带温度控制方法

    公开(公告)号:US4239483A

    公开(公告)日:1980-12-16

    申请号:US91818

    申请日:1979-11-06

    CPC分类号: C21D11/00 C21D9/56

    摘要: A method of controlling steel strip temperature in a process of continuously heating steel strip in heating equipment having a preheating zone and a rapid-heating zone. The preheating zone has a number of gas-injecting preheating units that can be individually put into and taken out of operation. In normal operation, the in-operation length of the preheating zone is prefixed irrespective of strip thickness, and the temperature of the rapid-heating zone is preset depending on the strip thickness so that the strip acquires the desired temperature at the exit end thereof. In such operation, the strip is preheated in the preheating zone of the prefixed in-operation length and rapidly heated in the rapid-heating zone at the preset temperature. In irregular operation, such as treating a following strip the thickness of which has changed, the temperature of the rapid-heating zone is changed from the preset one to a second one optimum for the following strip. In the transition period in which the preset temperature of the rapid-heating zone changes to the second one, the in-operation length of the preheating zone is adjusted to control the strip temperature at the exit end thereof. Thus the desired strip temperature at the exit end of the rapid-heating zone can be achieved irrespective of strip thickness.

    摘要翻译: 在具有预热区域和快速加热区域的加热设备中连续加热钢带的过程中控制钢带温度的方法。 预热区具有多个气体注入预热单元,可单独投入并取出运行。 在正常操作中,无论条带厚度如何,预加热区域的工作长度都是预先设定的,并且快速加热区域的温度是根据带材厚度预先设定的,以使带材在出口端处获得所需的温度。 在这种操作中,条带在预加工操作长度的预热区域中预热,并在预热温度下在快速加热区域快速加热。 在不规则的操作中,例如处理其厚度已经改变的随后的条,将快速加热区的温度从预设的一个改变到对于下一个条最佳的一个。 在快速加热区域的预设温度变为第二温度的过渡期间,调整预热区域的工作长度,以控制其出口端的带材温度。 因此,无论带厚度如何,都可以实现快速加热区出口端所需的带材温度。