Structural Mill - Rolled Steel Profile Products
Profile products - universal columns, parallel flanged beams, channels, angles, rounds, and billets are rolled in Evraz Highveld’s universal structural mill, a semi- automatic combination installation. It is also equipped to produce rails up to a mass of 57 kilograms / metre and up to 24 metres in length.
The continuously cast blooms from the steel plant are heated in a 120 ton / hour pusher furnace that is fired with a mixture of Elkem smelter furnace gas and Gascor gas.
To roll channels, angles, rounds or rails, the blooms are first rough-shaped in a breakdown stand, passed to and further shaped in a roughing stand and then transferred to the combination finishing stand for final rolling.
For universal beams , the blooms are rough-shaped and transferred to the universal stand, comprising a universal main mill and universal edger. The main roll stand forms the beam’s flanges and web simultaneously, while the edger forms the flange tips. The universal shape then passes to the combination finishing mill equipped with universal rolls. All sections are sawn to length using hot saws, cooled on two walking beam cooling banks and finally passed through a roll-straightener.
After straightening , the sections are inspected and placed on automatic pilers prior to stacking by crane or mobile side loader.
When rails are rolled, the finished product is dispatched after straightening to a separate bay where the ends are squared and drilled before final inspection.