Simulation Trial and Finite Element Simulation Study on Temperature Field of Pipes in Walking Beam Reheating Furnace

Xu Letian; Liu Liangyong; Li Yunlong; Xu Yaowen; Wan Wuxia

doi:10.20057/j.1003-8620.2023-00073

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Simulation Trial and Finite Element Simulation Study on Temperature Field of Pipes in Walking Beam Reheating Furnace

Forming and Phase Transition | 更新时间：2026-01-21

- Simulation Trial and Finite Element Simulation Study on Temperature Field of Pipes in Walking Beam Reheating Furnace
- Special Steel Vol. 44, Issue 6, Pages: 89-95(2023)
- 作者机构：
  
  1.武汉科技大学材料科学与工程学院，武汉 430081
  2.大冶特殊钢有限公司钢管研究所，黄石 435001
- 作者简介：
- 基金信息：
- DOI：10.20057/j.1003-8620.2023-00073
  CLC： TG156.1
- Received：09 May 2023，
  
  Published：01 December 2023
- 稿件说明：
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徐乐天,刘良勇,李云龙等.步进式加热炉内管材温度场模拟试验与有限元模拟[J].特殊钢,2023,44(06):89-95.

Xu Letian,Liu Liangyong,Li Yunlong,et al.Simulation Trial and Finite Element Simulation Study on Temperature Field of Pipes in Walking Beam Reheating Furnace[J].Special Steel,2023,44(06):89-95.
徐乐天,刘良勇,李云龙等.步进式加热炉内管材温度场模拟试验与有限元模拟[J].特殊钢,2023,44(06):89-95. DOI： 10.20057/j.1003-8620.2023-00073.

Xu Letian,Liu Liangyong,Li Yunlong,et al.Simulation Trial and Finite Element Simulation Study on Temperature Field of Pipes in Walking Beam Reheating Furnace[J].Special Steel,2023,44(06):89-95. DOI： 10.20057/j.1003-8620.2023-00073.

摘要

采用试验及三维有限元数值模拟的方法研究了4140合金钢管材在步进式加热炉内的加热过程，分析了管材的温度变化与温度分布。结果表明，先入炉的钢管头部温度比中尾部高30～50 ℃，沿钢管周向存在受热不均的现象，当温度超过800 ℃时，管材各部分温差逐渐减小，整体温度趋于均匀；在奥氏体化温度以下，钢管升温速率由0.35 ℃/s逐渐减低至0 ℃/s，相变完成之后小幅升高后再次降低；钢管头尾端部温度高于中部，影响区在200 mm以内，400 ℃左右与端面温差达到最大117 ℃，计算终了温差逐渐减小至2 ℃以内；模型计算结果与实测温度吻合较好，当钢管内表面按绝热边界处理时，对温度影响较小，在精度允许的条件下可以以此简化模型。

Abstract

The heating process of 4140 alloy steel pipe in the walking beam reheating furnace was studied by means of experiment and three-dimensional finite element numerical simulation， the temperature change and distribution of the pipe were analyzed. The results showed that the temperature of the head of the steel pipe entering the furnace first was 30-50 ℃ higher than that of the middle and tail part，and there was uneven heating phenomenon along the circumference of the steel pipe. When the temperature exceeded 800 ℃，the temperature difference between each part of the pipe gradually decreased，and the overall temperature tended to be uniform. Below the austenitizing temperature，the heating rate gradually decreased from 0.35 ℃/s to 0 ℃/s，and when the austenitization was complete，it increased slightly and then decreased again. Compared to the middle section， the temperature was higher at both the end and the head of the steel pipe，and the influencing area was less than 200 mm. When the temperature was about 400 ℃，the temperature difference between the end surface and the middle was the largest，reaching 117 ℃. However，the temperature difference gradually decreased to less than 2 ℃ at the end of the calculation. The simulation results were in good agreement with the measured value. When the inner surface of the steel pipe was treated as adiabatic boundary， it had relatively little influence on the temperature，which could make it possible to simplify the model roughly.

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