Research and Application of Remanufacturing Technology for Hot Straightening Rolls of Wide and Thick Plates
A systematic analysis was conducted on the material of the original scrapped size work rolls,and a remanufacturing process was determined and implemented.The remanufactured straightening rolls can fully meet the production needs.An analysis was conducted on the causes of frequent adhesion of oxidized iron sheets to hot straightening rolls,which resulted in roll marks.It was determined that the main reason was a decrease in the hardness of the working roll body.By optimizing the composition and hardness of the working layer of the straightening roller,improving the structure of the support roller shaft head,refining the grinding process parameters of the hot straightening roller,and assembling technical parameters,not only has the online use cycle of the straightening roller been extended,but the quality of straightening has also been improved,laying a foundation for improving the production capacity of the production line.
wide and thick boardhot straightening rollerremanufacturing
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