付天亮,王昭东,韩钧,邓想涛,王国栋

• 1:东北大学轧制技术及连轧自动化国家重点实验室

摘要(Abstract)：

利用开发的特厚钢板射流淬火试验装置及多通道温度记录仪,测试了射流速度14.0~23.5 m/s、射流压力0.4~1.0 MPa条件下,84 mm、170 mm厚大断面钢板淬火温降曲线,采用有限元方法建立了三维反传热导热模型和表面换热系数模型,对比分析了射流参数和换热区分布对钢板厚向温降、温度梯度和冷速的影响。结果表明:84 mm厚钢板断面冷速与表面换热系数近似正比关系,射流速度为23.5 m/s时钢板心部冷速达3.7℃/s;170 mm厚钢板表面换热对厚向冷速影响减弱,相应的温度遗传效应和断面厚向温度梯度的影响增强。

关键词(KeyWords)： 特厚钢板;射流淬火;换热数学模型;冷速;温度梯度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51104045)

作者(Author): 付天亮,王昭东,韩钧,邓想涛,王国栋

DOI: 10.13289/j.issn.1009-6264.2016.12.029

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