{"title":"对流换热过程中的轧机冷却床","authors":"T. V. Brovman","doi":"10.1134/S0036029523070042","DOIUrl":null,"url":null,"abstract":"<div><div><p><b>Abstract</b>—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.</p></div></div>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Cooling Bed in a Rolling Mill during Convective Heat Transfer\",\"authors\":\"T. V. Brovman\",\"doi\":\"10.1134/S0036029523070042\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div><p><b>Abstract</b>—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.</p></div></div>\",\"PeriodicalId\":769,\"journal\":{\"name\":\"Russian Metallurgy (Metally)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2023-12-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Metallurgy (Metally)\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0036029523070042\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Metallurgy (Metally)","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0036029523070042","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Cooling Bed in a Rolling Mill during Convective Heat Transfer
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.
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.
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