Leveler / Flattener Rolls For Rolling Mill
Being very small in diameter and longer in length, this is the most
difficult item to make amongst all the rolls. DEETEE is the only company in
India who is manufacturing the leveler rolls from the route of induction
hardening. The minimum diameter leveler roll that Dee Dee is manufacturing
is of 25mm dia.
Since the
application is concerned with finished coils, it is very important that the
rolls meet the following parameters :-
-
Good surface finish
-
Minimum variation( cylindricity and ovality) in the roll diameter
-
Ability to absorb bending forces and retain original shape.
Thru
induction hardening, the skin of the roll gets hardened but the core
remains soft. This allows the roll to absorb the bending force and
retain its original shape automatically during application.
A combination of center less and cylindrical grinding yields the desired
cylindricity, circularity and outness in rolls. |
