Abstract: In this report, the researches on five-rollor straightener have been discussed in detail.
The characteristics of the straightener's structure, the methods used for measurements and analysis, are proposed.The results obtained from the measurements and analysis on the straightening forces of the straightener, and the frictionai coefficients between the rollor and the billet under thenormal and high temperature conditions are all introduced.
These researches and results will be helpful to the designs of billet caster straightener.