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Increasing Roll Life for Steel Rolling Processes

提高轧钢工艺的轧辊寿命

基本信息

批准号：
8613492
负责人：
Ampere Tseng
金额：
$ 6.73万
依托单位：
Drexel University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1987
资助国家：
美国
起止时间：
1987-06-01 至 1989-03-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8613492&HistoricalAwards=false
关键词：
Increasing Roll Life Steel Rolling

项目摘要

This proposal is to study the cooling systems used in hot steel mills with the goal of improving productivity of the steel rolling process by increasing roll life and by reducing coolant consumption. The research consists of an experimental portion to obtain reliable heat transfer coefficient values and a modeling portion to simulate the heating, cooling and mechanical response of rolls during the rolling process. An instrumented apparatus has been developed which resembles the cooling systems used in steel mills and will be employed to accurately measure the heat transfer characteristics of various roll-cooling designs. This experimentally determined heat transfer coefficient data will be utilized for input to the numerical simulation portion of this research. The proposed study will provide a basic understanding of the influence of roll cooling on the resulting thermal and mechanical responses of the rolls and seek alternative cooling designs which reduce roll wear or spalling caused by the thermal fatigue stress. The results could be used to develop cooling design guidelines to increase roll life and to reduce coolant consumption. Results of this research could lead to improved productivity in steel rolling processes and should contribute fundamental information on the basic heat transfer mechanisms. The investigator is well qualified to perform this work successfully, having worked extensively in this research area.

这项建议是为了研究热轧钢厂使用的冷却系统，目的是通过延长轧辊寿命和降低冷却剂消耗来提高轧钢过程的生产率。研究包括获得可靠的换热系数值的实验部分和模拟轧辊在轧制过程中的加热、冷却和机械响应的建模部分。一种类似于钢厂使用的冷却系统的仪器已经被开发出来，它将被用来精确地测量各种轧辊冷却设计的传热特性。该实验确定的换热系数数据将用于本研究的数值模拟部分的输入。这项拟议的研究将对轧辊冷却对轧辊产生的热和机械响应的影响有一个基本的了解，并寻求替代的冷却设计，以减少由热疲劳应力引起的轧辊磨损或剥落。研究结果可用于制定冷却设计指南，以延长轧辊寿命和降低冷却剂消耗。这项研究的结果可能会提高轧钢过程的生产率，并将为基本的传热机理提供基础信息。调查员在这一研究领域进行了广泛的工作，完全有资格成功地完成这项工作。