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    • 2. 发明申请
    • METHOD OF ESTIMATING TEMPERATURE DISTRIBUTION HISTORY
    • 估计温度分布历史的方法
    • US20100286945A1
    • 2010-11-11
    • US12743901
    • 2008-11-21
    • Yoshihiko TangoMorinobu IshiyamaNaoki OsawaKiyoshi HashimotoJunji Sawamura
    • Yoshihiko TangoMorinobu IshiyamaNaoki OsawaKiyoshi HashimotoJunji Sawamura
    • G01K3/00G06F15/00
    • H05B6/104H05B6/06H05B2213/07
    • A method is provided for estimating a temperature distribution history in the case of line-heating flat-plate steel by high frequency induction. The method of estimating the temperature distribution history includes a first step of measuring a history of temperature distribution that is generated when a test piece of sheet steel is spot-heated; a second step of analyzing an induction current distribution that is generated when the sheet steel is spot-heated; a third step of expressing the induction current distribution by an approximation equation of the initial induction current distribution at an initial temperature and temperature dependent correction factor of the initial induction current distribution, and identifying the initial induction current distribution and the temperature dependent correction factors based on the temperature distribution history and the induction current distribution; a fourth step of analyzing internal heat generation from the initial induction current distribution, the temperature dependent correction factor, and a temperature dependency of electrical resistivity of the sheet steel; and a fifth step of analyzing the temperature distribution history generated during the line heating by applying the internal heat generation to the sheet steel while the internal heat generation is being moved. According to the method, the temperature distribution history in the case where the flat-plate steel is line-heated by high frequency induction can be efficiently estimated at high precision.
    • 提供了一种在通过高频感应线路加热平板钢的情况下估计温度分布历史的方法。 估计温度分布历史的方法包括:测量钢板试样点火加热时产生的温度分布历史的第一步骤; 分析当钢板点加热时产生的感应电流分布的第二步骤; 通过初始感应电流分布的初始温度和温度相关校正因子的初始感应电流分布的近似方程来表达感应电流分布的第三步骤,以及基于初始感应电流分布的初始感应电流分布和温度依赖校正因子 温度分布历史和感应电流分布; 从初始感应电流分布,温度依赖校正因子和钢板的电阻率的温度依赖性分析内部发热的第四步骤; 以及第五步骤,通过在内部发热移动期间对钢板进行内部发热来分析在线路加热期间产生的温度分布历程。 根据该方法,可以高精度地有效地估计在平板钢通过高频感应线路加热的情况下的温度分布历史。
    • 8. 发明授权
    • Method of estimating temperature distribution history
    • 温度分布历史估算方法
    • US09271336B2
    • 2016-02-23
    • US12743901
    • 2008-11-21
    • Yoshihiko TangoMorinobu IshiyamaNaoki OsawaKiyoshi HashimotoJunji Sawamura
    • Yoshihiko TangoMorinobu IshiyamaNaoki OsawaKiyoshi HashimotoJunji Sawamura
    • H05B6/10H05B6/06
    • H05B6/104H05B6/06H05B2213/07
    • A method is provided for estimating a temperature distribution history in the case of line-heating flat-plate steel by high frequency induction. The method of estimating the temperature distribution history includes a first step of measuring a history of temperature distribution that is generated when a test piece of sheet steel is spot-heated; a second step of analyzing an induction current distribution that is generated when the sheet steel is spot-heated; a third step of expressing the induction current distribution by an approximation equation of the initial induction current distribution at an initial temperature and temperature dependent correction factor of the initial induction current distribution, and identifying the initial induction current distribution and the temperature dependent correction factors based on the temperature distribution history and the induction current distribution; a fourth step of analyzing internal heat generation from the initial induction current distribution, the temperature dependent correction factor, and a temperature dependency of electrical resistivity of the sheet steel; and a fifth step of analyzing the temperature distribution history generated during the line heating by applying the internal heat generation to the sheet steel while the internal heat generation is being moved. According to the method, the temperature distribution history in the case where the flat-plate steel is line-heated by high frequency induction can be efficiently estimated at high precision.
    • 提供了一种在通过高频感应线路加热平板钢的情况下估计温度分布历史的方法。 估计温度分布历史的方法包括:测量钢板试样点火加热时产生的温度分布历史的第一步骤; 分析当钢板点加热时产生的感应电流分布的第二步骤; 通过初始感应电流分布的初始温度和温度相关校正因子的初始感应电流分布的近似方程来表达感应电流分布的第三步骤,以及基于初始感应电流分布的初始感应电流分布和温度依赖校正因子 温度分布历史和感应电流分布; 从初始感应电流分布,温度依赖校正因子和钢板的电阻率的温度依赖性分析内部发热的第四步骤; 以及第五步骤,通过在内部发热移动期间对钢板进行内部发热来分析在线路加热期间产生的温度分布历程。 根据该方法,可以高精度地有效地估计在平板钢通过高频感应线路加热的情况下的温度分布历史。