Review of Research and Application on Surface Strengthening Progress for Pinch Rolls of Hot Strip Mill Coiler
The coiler pinch roll has a great influence on the stable production of the hot rolling mill,the surface quality of the hot rolled strip,and the appearance of the coil.With the development and application of hot-rolled new-generation high-strength steel,ultra-high-strength steel and fine blanking tool steel,the wear resistance,heat resistance,impact resistance and other properties of the pinch roll surface material are required higher.The application of surface strengthening technology to improve the service life of the pinch roll can realize the repeated surface repair and strengthening of the pinch roll,save costs,and the related process and material technology have attracted attention.It reviews the current process methods and material technologies for improving the service life of pinch roll of hot rolling coilers,and focuses on the current situation and existing problems of surface strengthening technology such as surfacing welding,spray welding,laser cladding,laser alloying,etc,which applied to pinch rolls,and analyzes the types and performance characteristics of hardfacing alloy materials used in metallurgical e-quipment parts such as pinch roll and auxiliary roll produced in China and abroad in recent years.The research direction of surface strengthe-ning technology for further improving the service life of pinch roll under the toughest working conditions was discussed.
hot strip mill coilerpinch rollsurface strengthening progresssurfacing
万方数据
维普
