恒轧制力控制在铝合金复合锭热轧中的开发和应用  

Development and Application of Constant Rolling Force Control in Hot Rolling of Aluminum Alloy Composite Ingots

作　　者：林洪记 LIN Hongji

机构地区：[1]广西南南铝加工有限公司,广西南宁530031

出　　处：《今日自动化》2024年第11期1-3,共3页Automation Today

摘　　要：文章介绍了铝热粗轧机原有自动化系统的相关控制功能和算法,在充分掌握这些功能算法的基础上开发并应用了热粗轧机恒轧制力、恒辊缝的自动控制功能,以及实现了铸锭在水平方向上的运动和辊缝垂直方向变化的相互配合,使面板、包覆层在当前辊型下获得均一厚比和均匀分布。根据包铝板复合轧制的特点,需要从复合锭长度中间为分界,作两次恒轧制力静压,压实的最大力可在操作界面设定,设定参数后辊缝将根据设定轧制力调节压下量从铸锭任意位置开始并实现恒定速度的自动轧制。均匀排除气泡的过程以全自动的方式得到了实现,提高了生产效率,实际应用效果表明该功能的应用对复合板轧制时面板起折和干轧排气有非常有效的改善作用。Aluminum alloy composite materials have the characteristics of high added value and excellent performance,and have been widely used in the aerospace and automotive manufacturing industries.The successful rolling of aluminum alloy composite materials requires certain process techniques,and one of the key factors is to evenly discharge the bubbles between different coating layers in the first few passes of rough rolling,to avoid peeling of the plate surface due to residual bubbles between the coating layers.The relevant control functions and algorithms of the original automation system were introduced.Based on a full understanding of these functional algorithms,the automatic control functions of constant rolling force and constant roll gap of the hot roughing mill were developed and applied.The coordination between the horizontal movement of the ingot and the vertical variation of the roll gap was also achieved,so that the panel and cladding layer could obtain a uniform thickness ratio and uniform distribution under the current roll type.According to the characteristics of composite rolling of aluminum clad plates,it is necessary to perform two constant rolling force static pressures from the middle of the composite ingot length as the boundary.The maximum compaction force can be set on the operation interface.After setting the parameters,the roll gap will be adjusted according to the set rolling force to achieve automatic rolling at a constant speed from any position of the ingot.The process of uniformly eliminating bubbles has been achieved in a fully automated manner,improving production efficiency.The actual application effect shows that the application of this function has a very effective improvement effect on panel folding and dry rolling exhaust during composite plate rolling.

关 键 词：恒轧制力 恒辊缝 包铝板复合轧制 干轧排气 

分 类 号：TG333.7[金属学及工艺—金属压力加工]