PROCESS DESCRIPTION OF ROLLING MILL On receipt of requirements identified in production plan from marketing department, it is ensure that billets of required specs are available. Billets are rolled into TMT (HSD) bars & rolled sections of specified requirements. As per required chemical & Physical properties conforming to Specification for High Strength Deformed Steel bars and wires as per IS-1786:2008 and desired lengths are charged in pulverized coal fired Reheating furnace. Billets moved into Reheating furnace by hydraulic pusher. In Preheating, Heating & Soaking zones billets are properly heated & soaked at 1180˚C to 1280˚C then discharged for rolling. These billets are then processed into two 18” Rouging stand and then after continuous 12 stand as per required size. After that final shape, bar passed into Thermax Quenching system and Cooling bed. In this system three stage thermo- mechanical treatment as Quenching, Tempering and Atmospheric Cooling are done. After cooling on cooling bed these bars are cut in single length as per customer requirements at cold shear machine. These bars then are stacked in stock yard as per their size & grade.
On receipt of requirements identified in production plan from
marketing department, it is ensure that billets of required specs
are available. Billets are rolled into TMT (HSD) bars & rolled
sections of specified requirements.
As per required chemical & Physical properties conforming to
Specification for High Strength Deformed Steel bars and wires as
per IS-1786:2008 and desired lengths are charged in pulverized coal
fired Reheating furnace. Billets moved into Reheating furnace by
hydraulic pusher. In Preheating, Heating & Soaking zones
billets are properly heated & soaked at 1180C to 1280C then
discharged for rolling.
These billets are then processed into two 18 Rouging stand and
then after continuous 12 stand as per required size. After that
final shape, bar passed into Thermax Quenching system and Cooling
bed. In this system three stage thermo- mechanical treatment as
Quenching, Tempering and Atmospheric Cooling are done.
After cooling on cooling bed these bars are cut in single length
as per customer requirements at cold shear machine. These bars then
are stacked in stock yard as per their size & grade.
