Full continuous rolling technology of steel bar hot rolling mill

The rolling mill production is about 400,000 tons per year, and the finish rolling speed is less than 16m/s. Although, the rolling mill can produce the round steel(Φ14-Φ40mm), the ribbed rebar(Φ12-Φ40mm), the steel grade are ordinary carbon structure steel, low alloy steel, alloy steel, high-quality carbon structure steel, standard parts steel, anchor steel,etc.

The line is full continuous steel bar hot rolling mill, all of the mill has 18 rolling units. The units consists of rough rolling unit, medium rolling unit and finish rolling unit. Each rolling unit has 6 short stress line rolling machines by horizontal-vertical alternately arranged. It is worthy noting that, the No.16 and No.18 rolling machine are horizontal-vertical convertible rolling machines.

Besides, all of the units are driven alone by DC motor.

The whole rolling line adopts full continuous and no tension rolling, and the rough and medium rolling units adopt micro tension rolling. After the 12th rolling mill, vertical loopers are set between the respective rolling rack to realize tensionless rolling, thereby producing High precision products. The rolling line adopts computer automatic control to realize single-line full continuous rolling, and the maximum speed of finishing rolling is 16m/s.

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