Heat residual stress control during steel plate controlled-cooling process
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摘要: 確定了中厚板ACC冷卻系統的換熱邊界條件,建立了鋼板溫度場和應力場有限元計算模型.利用現場實測數據對溫度場計算結果進行驗證,利用間接耦合方法對鋼板的應力場進行計算.分析了不同集管開啟方式、不同輥道速度和不同冷卻介質溫度對鋼板熱殘余應力的影響規律.Abstract: The exchange heat boundary conditions of an accelerated controlled-cooling system (ACC) were decided, and a finite element model of temperature and stress field was constructed. The calculated result of temperature field was proved by testing data, and the stress field of steel plates was computed by using the coupling method. Finally, the effects of parameters such as header combination, running speed and cooling medium temperature on the heat residual stress were analyzed.
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