Double-high bar producing device and process

Abstract

The invention discloses a double-high bar producing device, and belongs to the technical field of metallurgy. The double-high bar producing device comprises a main rolling bay and a finished product bay. The main rolling bay comprises a furnace delivery table, a rough rolling unit, first flying shears, an intermediate rolling unit, a front end water tank, second flying shears, a finish rolling unit, middle water tanks, third flying shears, a module rolling mill, a middle rear end water tank, a tail end water tank, high-speed flying shears, a bar tail maker, a double drum, a cold bed, cold shear and a first conveying roller table in sequential connection. The finished product bay comprises a second conveying roller table and a collecting table frame in sequential connection. The first conveying roller table of the main rolling bay is connected with the second conveying roller table through a cross-bay table frame. The invention further discloses a process of the device. A production line is divided into two at the finish rolling unit, and the line difference of produced products is small; the multiple water tanks are arranged on the production line to perform online heat treatment on rolled pieces, the mechanical property of finished products is ensured, and the yield strength is not smaller than 500 MPa; and meanwhile, by means of the online heat treatment process, the additionof a vanadium-nitrogen alloy in the products is reduced, and production cost is reduced.

Description

Technical field [0001] The invention belongs to the field of metallurgical technology, and specifically relates to a double high rod production equipment and process. Background technique [0002] The current bar production line production technology scheme mainly has the following two schemes: The first technical scheme adopts slitting rolling to produce bars, the production speed is lower than 18m / s, a heating furnace, rough rolling unit, cutting head flying shear, middle Rolling mill, cutting head flying shear, finishing mill (slicing), water penetration device, double-length flying shear, cooling bed, cold shear, cross-chain, collecting device. The second technical solution is to produce bars with a single high rod, the production speed is lower than 40m / s, a heating furnace, roughing mill, cutting flying shear, intermediate rolling mill, water tank, cutting flying shear, finishing rolling unit, water tank, Modular rolling mill, water tank, high-speed steel loading device, c...

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to solve the problems existing in the prior art, the present invention provides a double-high rod production equipment to solve the problems of low product mechanical properties and low output; another purpose of the present invention is to provide its process

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