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    • 43. 发明专利
    • Heat treatment apparatus
    • 热处理设备
    • JP2010037572A
    • 2010-02-18
    • JP2008198550
    • 2008-07-31
    • Kanai Hiroaki金井 宏彰
    • SASAKURA NOBUHIKO
    • C21D9/56C21D1/00C21D1/74C21D1/76C21D9/573F27D7/06
    • PROBLEM TO BE SOLVED: To provide a heat treatment apparatus which continuously heat-treats a steel wire material by heating and cooling it, and can prevent the steel wire material from being decarbonized or oxidized while suppressing energy consumption.
      SOLUTION: The heat treatment apparatus has a heating furnace 1 for heating the wire (steel wire material) w with a burner 11 in a reductive atmosphere, a cooling furnace 2 for cooling the heated wire w by passing the wire through a fluidized bed z of sand that is stirred by the spouted air a, while the atmosphere temperature is adjusted with a burner 12, and a connecting furnace (connecting space) 3 which is located between the heating furnace 1 and the cooling furnace 2 and cools the steel wire material w to an intermediate temperature. The heat treatment apparatus feedback-controls a composition of the atmosphere in the connecting furnace 3 by detecting the composition of the atmosphere in the connecting furnace 3 with a sensor (CO sensor 6) and controlling an amount of the gas which flows through a bypass pipe 4 by opening and closing a valve 5, keeps the atmosphere in the heating furnace 1 at the reductive atmosphere, and prevents the wire (steel wire material) w from being decarbonized or oxidized.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供一种通过加热冷却而对钢丝材料进行连续热处理的热处理装置,能够防止钢丝材料脱碳或氧化,同时抑制能量消耗。 解决方案:热处理装置具有用于在还原性气氛中用燃烧器11加热线(钢丝材料)w的加热炉1,用于通过使线穿过流化床来冷却加热丝w的冷却炉2 通过喷射空气a搅拌的沙子z,同时用燃烧器12调节大气温度,以及位于加热炉1和冷却炉2之间的连接炉(连接空间)3,并冷却钢 线材w到中间温度。 热处理装置通过利用传感器(CO传感器6)检测连接炉3中的气氛的组成来反馈控制连接炉3中的气氛的组成,并控制流过旁通管的气体量 如图4所示,通过打开和关闭阀5,将加热炉1中的气氛保持在还原气氛下,防止钢丝(钢丝材料)w脱碳或氧化。 版权所有(C)2010,JPO&INPIT
    • 50. 发明专利
    • Method for controlling temperature of continuous heat treatment furnace for steel strip
    • 钢丝连续加热炉温度控制方法
    • JP2008308731A
    • 2008-12-25
    • JP2007157749
    • 2007-06-14
    • Nippon Steel Engineering Co Ltd新日鉄エンジニアリング株式会社
    • KUNIKATA YASUO
    • C21D9/56C21D9/573
    • PROBLEM TO BE SOLVED: To provide a method for controlling the temperature of a continuous heat treatment furnace by which the most suitable cooling can be obtained while avoiding the insufficient cooling and the over-cooling when changing an operational condition in a slow cooling zone of the continuous heat treatment furnace for steel strip. SOLUTION: In the temperature control method of the continuous heat treatment furnace for steel strip, by which the rear end part of a front steel strip 11 and the front end part of a rear steel strip 12, are welded to form a continuous steel strip 13, and the continuous steel strip 13 is heated while passing through a heating zone in the continuous heat treatment furnace for steel strip and slow-cooled while passing through a slow cooling zone 15 blowing the cooling blast with a blower 14; at the time of steady-state operation, in which the change of the furnace temperature with a heater 16 arranged in the slow cooling zone 15 and the change of the rotation number of the blower deciding the total blasting amount blown in the slow cooling zone 15, are not performed, the adjustment of the strip temperature in the slow cooling zone 15 is performed with a feedback control, and in the other side, at the time of changing the operational condition for changing only the rotation number of the blower and the furnace temperature in the slow cooling zone 15, the feedback control is interrupted and the rotation number of the blower or the furnace temperature in the slow cooling zone 15 is performed with the feed-foreward control. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种用于控制连续热处理炉的温度的方法,通过该方法可以在缓慢冷却中改变操作条件时避免冷却不足和过冷却而获得最合适的冷却 钢带连续热处理炉区。 解决方案:在用于钢带的连续热处理炉的温度控制方法中,前钢带11的后端部分和后钢带12的前端部分被焊接以形成连续的 钢带13,连续钢带13在通过用于钢带的连续热处理炉中的加热区域进行加热,并在通过鼓风机14吹入冷却风的缓慢冷却区域15中缓慢冷却; 在稳态运行时,配置在缓慢冷却区域15中的加热器16的炉温变化以及鼓风机的转数的变化决定了在慢冷却区域15中吹出的总爆破量 ,则通过反馈控制来进行缓慢冷却区域15中的带材温度的调整,另一方面,在改变仅改变鼓风机和炉子的转数的操作条件的时候 在缓慢冷却区域15中的温度,反馈控制被中断,并且通过前馈控制来执行缓慢冷却区域15中的鼓风机转速或炉温。 版权所有(C)2009,JPO&INPIT