Cooling Control of Non-Conventional Rolls for Steel Rolling

轧钢异型轧辊的冷却控制

• 批准号: 8709281
• 负责人: Ampere Tseng
• 金额: $ 6万
• 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: 1987-07-01 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8709281&HistoricalAwards=false
• 关键词: Cooling; Control; Non; Conventional; Rolls

The rolls used in the rolling of steel, even if undamaged by catastrophic fracture or other major failure, must be changed frequently because of wear and spalling. Proper cooling appears to have a significant effect on roll life, but there is very little definitive information about the why and how. The proposed study is aimed at providing a basic understanding of the influence of roll cooling on the thermal and mechanical responses of rolls. Alternative cooling practices will be sought for reducing roll wear and spalling caused by thermal failure stress. A laboratory apparatus has been developed at Drexel University which models the cooled rolls used in steel mills. The apparatus will be heavily instrumented to determine the heat transfer coefficient between the roll surface and the water spray which serves as a coolant. The thermal information will be used as input to a numerical model for determining the stress field in the roll.

用于轧钢的轧辊，即使未被 灾难性断裂或其他重大故障，必须更换 经常是因为磨损和剥落。 适当的冷却出现 对轧辊寿命有很大影响，但 关于为什么和如何发生的确切信息很少。 的 拟议的研究旨在提供一个基本的了解 轧辊冷却对热响应和力学响应的影响 卷。 将寻求替代冷却方法， 减少了由热失效应力引起的轧辊磨损和剥落。 德雷塞尔大学研制出一种实验装置 该模型模拟了在钢铁米尔斯中使用的冷却辊。 述的装置 将被大量的仪器来确定热传递 辊面与喷水之间的系数， 用作冷却剂。 热信息将被用作 输入到数值模型，用于确定 滚动。