Thermomechanical Rod Rolling for Uniform Coil Cooling

The patent applies preliminary action by performing thermomechanical rolling and controlled cooling to establish a uniform microstructure before the steel is wound into coils. The sizing blocks and cooling devices are positioned upstream of the coil winder, ensuring the microstructural transformation occurs while the steel is still in a manageable state, preventing later cooling inconsistencies that would arise from winding hot steel.

The patent segments the rolling process into multiple stages with dedicated sizing blocks between rolling stands, allowing independent control of each segment. This segmentation enables precise temperature and deformation control in each zone, ensuring uniform cooling characteristics throughout the steel product before it enters the coil winder.

The patent applies dynamics by implementing a dynamic thermomechanical process where rolling and cooling are continuously coordinated. The sizing blocks dynamically adjust deformation parameters while cooling devices simultaneously control temperature reduction, creating a balanced process that achieves both strength through martensite formation and homogeneity through controlled cooling rates throughout the steel cross-section.

The patent employs parameter changes by systematically varying temperature and deformation parameters throughout the rolling process. The steel undergoes controlled temperature reduction from austenite region through controlled rolling in sizing blocks, with cooling rates and deformation amounts precisely adjusted to achieve uniform martensitic transformation throughout the microstructure.