ABSTRACT

When designing a new material for hot rolling rolls, it is necessary to be aware of the conditions in the later utilisation phase. The first step is to quantify stresses, and temperatures the material must tolerate operating in the rolling mills. These characteristics are evaluated by direct measurements and hot rolling simulations. Simulations targeted the identification of the temporal and spatial temperature distribution permeating the roll during the entire rolling process. As a major influence varying cooling conditions had to be accounted for roll temperatures. As an output value the minimum yield stress was identified – the determining factor for the development of a high strength roll material for cast rolls.

摘要

在设计热轧辊新材料时，需要了解后期使用阶段的条件。第一步是量化应力和材料在轧机中运行时必须承受的温度。这些特性通过直接测量和热轧模拟进行评估。模拟的目标是识别在整个轧制过程中贯穿轧辊的时间和空间温度分布。作为主要影响因素，必须考虑到轧辊温度变化的冷却条件。作为输出值，最小屈服应力被确定——这是开发用于铸轧辊的高强度轧辊材料的决定性因素。