抄録
Steel rolls have been predominantly adopted for cold rolling of thin strip. They, however, appear to be approaching the limit of rolling performance.
To provide rolls with performance levels that steel can never attain, the use of ceramics has been studied, because ceramics generally possess higher hardness, larger Young's modulus than those of steel and a nonadhesion property to rolled strip, etc.
In this work, sialon ceramic was selected and its characteristics and performance in cold rolling were examined.
Results obtained were as follows:
(1) The rolling fatigue strength was higher than 2.8 GPa.
(2) 25% thinner gage under 9% lighter load was obtained in rolling mild steel.
(3) 30% glossier rolled surface was obtained in rolling stainless steel.
