Working Principle of Roller Straightening Machine
Roller straightening machine is used to straighten steel pipe, remove the longitudinal bending of steel pipe after forming, welding and transverse section of the out-of-roundness and other defects, and at the same time eliminate the high temperature due to welding on the steel pipe weld at the organizational stress.
The size and direction of the original bending curvature of the metal is different, roller straightening machine to make the metal by many repeated bending to eliminate the unevenness of the curvature, so that the curvature from large to small and make it straight.
Roller straightening machine, according to each roller to make the metal to produce the amount of deformation (the amount of pressure down) of different, and divided into two kinds of envisaged correction program: small deformation correction program and large deformation correction program.
Small deformation correction program: the so-called small deformation correction program is the assumption that the straightening machine rows of work rollers each roller can be adjusted individually, and each roller under the amount of adjustment principle: into the roll of the metal after bending and bouncing back, the larger original curvature should be completely eliminated, that is, the part to be flat and straight.
Large deformation correction program: due to changes in the original curvature of the metal being straightened and difficult to accurately determine, so in the production of large deformation correction program is often adopted.