Selecting the roller correctly to meet the production requirement

The residual stress and thermal stress will occur in the preparatory process before the roller is made and used. The effect of various periodic stresses is further affected by the application, including twists, turns, shear force, contact stress and thermal stress. The stress distribution along the roller body is uneven, changing, the reason is not only the planning elements, but also in the use of roller wear, temperature and roll shape changes. In addition, the rolling conditions often show abnormal conditions. After cooling, the roller will be damaged by thermal stress. In addition to the wear and tear, but also often crack, fracture, spalling, indentation and other parts of the damage and surface damage. A good roll, its strength, wear resistance and other performance indicators should have a better match. In this way, it is not only durable under normal rolling condition, but also can be damaged in some abnormal rolling condition. Therefore, in order to enhance the bearing capacity of the roller, it is necessary to strictly control the metallurgical quality of the roll or with external measures.
There are many kinds of rolling mill for the production of long products. Therefore, the selection and layout of the mill type, the selection of the roll material, the determination of the roll size and the selection range are very wide. At the same time, the different mill rolls are also different.
Long product mill
In order to increase the productivity and improve the quality of the product, it is necessary to have a good understanding of the types and configurations of the mill.