Rolling device for nanometer bainitic steel production

Abstract

The invention relates to the technical field of rolled steel machining equipment, in particular to a rolling device for nanometer bainitic steel production. The rolling device comprises a bottom plate, a fixed supporting plate is fixedly connected to the right side of the top of the bottom plate, a transverse groove is formed in the bottom plate, a second air cylinder is fixedly arranged in the transverse groove, the output end of the second air cylinder is fixedly connected with a moving block, a movable supporting plate is fixedly connected to the moving block, mounting plates are fixedly connected to the middle end of the outer side wall of the movable supporting plate and the middle end of the outer side wall of the fixed supporting plate, motors are fixedly arranged on the mounting plates, the motors are connected with air expansion rollers, L-shaped rods are fixedly connected to the rear side wall of the movable supporting plate and the rear side wall of the fixed supporting plate, sleeves and springs are fixedly connected with the transverse parts of the L-shaped rods in a symmetrical mode, and the springs are fixedly connected with sliding rod. According to the device, thesecond air cylinder drives the movable block to move, the movable block drives the movable supporting plate to move, so that the distance between the movable plate supporting plate and the fixed supporting plate can be adjusted, and the device is suitable for rolling nanometer bainitic steel with different widths.

Description

technical field [0001] The invention relates to the technical field of coil steel processing equipment, in particular to a coiling device for producing nano-bainite steel. Background technique [0002] In 2003, Bhadeshia et al. found that the Fe-Si-Mn-Cr-Mo-V steel with a carbon content of 0.75-0.98wt% and its high-silicon high-carbon low-alloy steel with Co or Al added could be reduced by alloy design. Its martensite transformation temperature point (Ms) can provide a temperature range for low temperature bainite transformation. After austenitizing treatment, it is austempered to T=0.25Tm (Tm is the melting point expressed in absolute temperature), and after several days of isothermal heat treatment at this temperature, extremely fine nano-Bainian can be obtained. Its main structure is composed of nanoscale bainitic ferrite lath and carbon-rich retained austenite film between the laths. The bainite of this organization is called low temperature bainite (Low Temperature Bai...

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Problems solved by technology

[0008] In view of the above-mentioned shortcomings existing in the prior art, the present invention provides a coiling device for the production of nano-bainite steel, which can effectively overcome the problem that the prior art device cannot adapt to coiling of steels of different widths through adjustment.

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