英语翻译INFLUENCE OF ROLLING CONDITIONS ON THE QUALITY OF HOT-RO

英语翻译
INFLUENCE OF ROLLING CONDITIONS ON THE
QUALITY OF HOT-ROLLED STEEL STRIP
Yu.D.Zheleznov,Yu.A.Mukhin,
S.L.Kotsar',V.F.Usenko,and V.V.Chvilev
The temperature and speed conditions in roiling are a very important factor in determining the geometry and mechanical properties of hot-rolled strip.By maintaining the specified temperature at the end of roiling and by regulating the temperature of the steel during coiling,it is possible to maintain a stable thickness and the required mechanical properties over the length of the coil without further heat treatment.The temperature drop over the length of the strip may be decreased by accelerating the finishing group of the mill with the steel in the rolls.
The building of new hot-rolled strip mills,such as the 2000 mill at Novo-Lipets Plant or the 1700 mill at Karaganda Combine,equipped with systems for accelerating the finishing group with the metal in the rolls,requires many-sided study of the influence of acceleration on the temperature conditions of the rolling and on the quality of the sheet.
To study the relationship between accelerating roiling and the quality of hot-rolled strip steel,experimental rollings were made on the 2000 continuous wide-strip mill of Novo-Lipets Metallurgical Plant of 1.2×1050 mm strip of St.3kp steel and 2.0×1050 strip of St.2kp steel with varying amounts of acceleration.The strip was rolled from 170×1070×5000 turn slabs,using the method normally used on the mill.Acceleration of the finishing group was started after the strip was grasped by the coilers,at a distance of 230－240m from the finishing stand.As a result,the first half of the strip was rolled without acceleration,and the second,with the specified amount.
To determine the influence of acceleration on the mechanical properties and structure of the strip,six samples -- three longitudinal and three transverse - were taken at the start and finish of the accelerated portion.The samples were tensile-tested according to GOST 1497－61.The tensile strength,yield strength,and elongation were recorded.The experimental data obtained was handled statistically.The relationship of the tensile strength and its spread to the acceleration in rolling the 2.0×1050 strip is as follows:

真正的人工翻译!
影响热轧钢板质量的轧制条件
Yu.D.Zheleznov,Yu.A.Mukhin,
S.L.Kotsar',V.F.Usenko,and V.V.Chvilev
在轧制过程中温度和速度条件是非常重要的两个因素,最终决定热轧钢板的几何尺寸和机械性能.通过保持轧制结束时特定的温度和调控卷绕钢板的温度,就有可能获得整卷板材稳定的厚度和理想的机械性能,而不用额外的热处理工序.通过加快板材在精轧阶段的轧制速度,可以减小板材温度降低的范围.
新建成的热轧板材项目,如Novo-Lipets工厂的2000热轧,或Karaganda Combine的1700热轧装备了精轧机架组板材轧制加速系统,这要求研究由于加速导致的对温度条件和板材质量的多方面影响.
为了研究轧制加速和热轧板材的关系,在Novo-Lipets冶金工厂的2000连续宽幅热轧线上以不同加速度试轧了厚度为1.2和2毫米厚的1050毫米幅宽的St.3kp钢.
轧制的板坯是170×1070×5000规格,使用的方法是常规方法.当卷曲机开始抓住板材时加速精轧机架组的轧制速度,也就是相距230到240米的距离.
结果就是板卷的前半部分是正常轧制速度,而后半部分以特定的速度轧制.为了决定加速对板材机械性能和材料结构的影响,6个样品,3个横向,3个纵向,分别从加速开始和结束部分取样.试样按照GOST 1497－61的标准做了拉伸试验.记录了不同加速度下的材料拉伸强度和屈服强度.整个实验的数据被统计和整理.材料拉伸强度与轧制2.0×1050规格的加速度范围的对照关系如下：