Cooling Bed in a Rolling Mill during Convective Heat Transfer

IF 0.4 Q4 METALLURGY & METALLURGICAL ENGINEERING Russian Metallurgy (Metally) Pub Date : 2023-12-05 DOI:10.1134/S0036029523070042

T. V. Brovman

引用次数: 0

Abstract—The cooling of a metal during heat removal via radiation and convection is considered. The cooling beds used in modern section rolling mills are calculated using the quantity of heat transfer. A formula is proposed for calculating the time of metal cooling from 850 to 50°C. It gives a result 1.78 times less than the formula that does not take into account the influence of convective heat transfer. For large-thickness workpieces, the surface temperature differs from the average; therefore, the use of the temperature averaged over the cooling bed volume in calculations leads to errors. The refinement of the calculation of the radiation surfaces has increased the accuracy of calculating the cooling process.

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对流换热过程中的轧机冷却床

摘要:本文考虑了金属在辐射和对流散热过程中的冷却问题。用换热量对现代型钢轧机的冷却床进行了计算。提出了850 ~ 50℃金属冷却时间的计算公式。计算结果比不考虑对流换热影响的公式小1.78倍。对于大厚度工件，表面温度与平均温度不同;因此，在计算中使用冷却床体积上的平均温度会导致误差。辐射面计算的精细化提高了冷却过程计算的准确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Russian Metallurgy (Metally) METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

0.70

自引率

25.00%

发文量

140

期刊介绍： Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.