特厚钢板射流冲击淬火过程厚向冷速试验研究

材料热处理学报, 2016, 37(12): 180-188.

特厚钢板射流冲击淬火过程厚向冷速试验研究

付天亮 ^1, , 王昭东 ^2, , 韩钧 ^3, , 邓想涛 ^4, , 王国栋 ^5,

1.东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳,110819

2.东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳,110819

3.东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳,110819

4.东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳,110819

5.东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳,110819

基金项目: 国家自然科学基金(51104045)

关键词：特厚钢板 , 射流淬火 , 换热数学模型 , 冷速 , 温度梯度

Experimental studies on thickness direction cooling rate of water jet impingement quenching for ultra heavy plate

Keywords： ultra heavy plate , jet impingement quenching , heat transfer model , cooling rate , temperature gradient

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.

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材料期刊网

特厚钢板射流冲击淬火过程厚向冷速试验研究

Experimental studies on thickness direction cooling rate of water jet impingement quenching for ultra heavy plate

参考文献