摘要硅钢广泛应用于日常生活生产中，冷轧是制作硅钢片中最常见的一个工艺，然而轧制硅钢边部开裂是冷轧过程中经常遇见的问题，这直接导致了产品质量的下降和成品率的下降。本文针对高牌号硅钢的冷轧边裂的问题，从轧制工艺入手，分别从摩擦，压下，来料厚度，来料板宽，张力来分析不同的轧制工艺对冷轧高牌号硅钢的轧制边裂所造成的不同影响。以此来研究在轧制过程中，应当制定怎样的轧制方案，来减小轧制边裂。研究结果表明：来料板宽并不会对轧制边裂造成影响，摩擦会对轧制边裂造成较小的影响，摩擦系数较小时，其轧制边裂的损伤最大值较大，其影响并不明显，来料厚度越小时其边裂的损伤值越大；而张力越大时，其损伤值也越大，圧下率越大时其损伤值显著提升。综合上述分析，我们在实际轧制时，要选择恰当的来料厚度，合理安排五连轧每道次的压下量，控制其各个轧辊的转速，不要造成过大的前后张力，来控制冷轧硅钢的轧制边裂，以确保材料的成材率。80877

关键词： 冷轧；边裂；高牌号硅钢；轧制工艺

Abstract

Silicon steel is widely used in daily production, cold rolling is the most common production of silicon steel a process, but the rolling silicon steel edge cracking is cold rolling process often encountered problems, which led directly to the decline in product quality and yield The decline。 In this paper, the problem of cold rolling edge cracking of high grade silicon steel is studied。 From the rolling process, the paper analyzes the effects of different rolling processes on the cold rolling high grade silicon steel from the aspects of friction, pressure reduction, incoming thickness, The different effects caused by rolling edges。 In order to study the rolling process, what kind of rolling scheme should be developed to reduce the rolling edge crack。 The results show that the width of the slab does not affect the rolling edge crack, and the friction will have a smaller effect on the rolling edge crack。 When the friction coefficient is small, the maximum damage of the rolling edge is larger The greater the tension, the greater the damage value, the greater the rate of depression when the damage value is significantly improved。 Based on the above analysis, we in the actual rolling, to select the appropriate thickness of the material, reasonable arrangements for each rolling times to control the speed of each roll, do not cause excessive tension before and after, to control the cold Rolling the rolling of silicon steel to ensure that the material into the material rate。

KeyWords：cold rolling；Edge crack；silicon steel；rolling process

c目录

1 绪论 4

1。1 文献综述 4

1。1。1 硅钢概述 4

1。1。2 冷轧硅钢的生产工艺概述 4

1。1。3 边裂现象以及其研究现状 5

1。1。4 有限元方法及Marc简介 6

1。2 研究内容 6

1。3 研究的目的和意义 6

2 有限元分析模型的建立 8

2。1 材料力学参数的确定 8

2。2 轧制仿真模型的建立 8

2。2。1 几何模型的建立 8

2。2。2 网格的划分 11

2。2。3 材料的设定 11

2。2。4 接触条件的设定