Hot rolling can improve the processing performance
of metal and alloy, that is, the coarse grain in casting state is
broken, the crack is obviously healed, the casting defect is reduced or
eliminated, the cast structure is changed into deformed structure, and
the processing performance of alloy is improved.
Advantages
(1) Hot rolling can significantly reduce energy consumption and cost.High plasticity and low deformation resistance greatly reduce the energy consumption of metal deformation during hot rolling.
(2) Hot rolling can improve the processing performance of metal and alloys.Because
the coarse grain in the casting state is broken, the crack is obviously
healed, the casting defects are reduced or eliminated, the as-cast
microstructure is transformed into deformation microstructure, and the
processing performance of alloy is improved.
(3) Hor rolling can improve the production efficiency and rolling speed.Hot
rolling usually adopts large ingot casting and large reduction rolling,
which not only improves the production efficiency, but also creates
conditions for improving the rolling speed and realizing the continuity
and automation of the rolling process.
