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Solutions › Metalworking 

Rebar Milling Plant 

Product Info


Rebar, or reinforcing bar, is an essential component of weight-bearing concrete structures.  When added to concrete, the rebar adds strength and flexibility, which concrete alone does not have. 
A typical configuration for a bar mill includes the following steps:
  • reheating
Batches of steel billets are preheated at about 1200oC in a reheating furnace. The preheating furnace can be either a pusher type or a walk-in beam type.
  • Rolling
The preheated billets are rolled through subsequent reductions in the stands to obtain desired diameters of bars. The hot rolling process is mainly carried out in three steps:
Roughing
In roughing the scales are removed and the billets are subjected to primary deformation. The roughing stand exit temperature is about 1050-1080oC. Roughing mill can be planed with horizontal and/or vertical stands of housingless or cantilever design.
Intermediate
In the second or intermediate step, the cross sections of billets are progressively reduced and lengths are increased. Intermediate mill can be designed with housingless horizontal and/or vertical stands.
Finishing
In the last or finish rolling step, bars are rolled to final diameters.In the case of rebar, the desired rib profile is embossed. The end rolling temperature is about 1080-1100oC. Finishing mill can be designed with housingless convertible horizontal and/or vertical stands and quick-change equipment. 
  • Cooling
Bars from the mill are quenched in the quenching and self-tempering facilities. After quenching, the excess water on the surface of bars is stripped off and the bars are dries. Then, the bars are delivered to the cooling bed via roller tables to cool down.
  • Finishing
Finishing facilities with cold shear, bundle forming equipment and wire tying machines end up the rebar production process.
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