- Newsletter
- Shanghai Jundong Info Tech Co.,LTD
Menu
Rolls are crucial in tension levelers and rolling mills within the metal – processing industry.
Tension Levelers: Rolls in tension levelers, along with applied tension, correct the shape of bent metal.
In multi - roll tension levelers, the metal is gradually bent against its original curvature. For example, in constructing high - rise buildings, parallel rolls in tension levelers straighten steel beams, ensuring they meet construction requirements.
Rolling Mills: Rolls in rolling mills reduce the thickness of metal slabs. The continuous rotation of rolls pulls the metal through the mill, and thickness reduction occurs in multiple passes.
For instance, a steel - making company uses work rolls and backup rolls to transform metal slabs into automotive - grade steel sheets.
Parallel rolls are common for straightening flat - shaped materials. Segmented rolls are for materials with complex cross - sections. Rolling Mills: Work rolls directly contact and deform the metal. Backup rolls support work rolls to ensure uniform thickness reduction.
Roll material needs high hardness, wear resistance, and strength. Alloy steel, with elements like chromium and nickel, is suitable for high - load applications. Cast iron is used in less - demanding scenarios due to its cost - effectiveness.
Ceramic rolls are for high - temperature and high - wear environments but are brittle.
Regular inspection for wear, cracks, or deformation is a must. Adequate lubrication reduces friction. Precise alignment is crucial; misaligned rolls can cause product defects.
In summary, proper roll design, material selection, and maintenance are vital for high - quality metal product production.