Study On The Roll Using Technology Of 1420 Cold Tandem Mill

In recent years,most users have improved the quality requirements of cold rolled strip.At the same time,with the increasingly fierce competition in the steel market,the profits of the strip products are declining.How to improve the production efficiency and reduce the production cost on the premise of guaranteeing the quality of the strip has become the focus of the field technology.Roll is one of the most important parts and consuming parts in rolling process.It is not only related to the production efficiency of the whole mill,but also affects the quality of the strip.The intermediate roll and backup roll of 1420 Cold Tandem Mill in a steel mill often appear the burst roll problem,which seriously destroys the production stability and reduces the production benefit.Around this problem,this paper has done some study of the following.First of all,in order to solve the burst roll problem in the rolling process,the working environment of rolls is investigated in this paper.The experimental tracking lays a solid foundation for the development of the roll using technology.Then,on the basis of fully combining the characteristics of the unit's equipment and technology,this paper developed a set of roll using technology to prevent the roll spalling and bursting.The main research contents include the following four aspects: the profile optimization of intermediate roll and backup roll,the original roughness optimization of the work roll,the optimization of roll matching technology and roll dynamic adjustment parameters,and the optimization of rolling process parameters.The distribution of the pressure between rolls became homogenized and the peak was reduced by the research.At the same time,a series of optimization software has been developed to effectively reduce the roll consumption.Finally,the roll using technology is applied to production practice by taking a 1420 Cold Tandem Mill in a steel mill as the research object.Since the adoption of roll using technology,it is found that the field roller resources have been effectively allocated,the roll consumption has been significantly improved,and the roll spalling and bursting has been greatly reduced.On the premise of guaranteeing the quality of strip production,this technology effectively reduces the roll consumption and has achieved good economic benefit.