Control device and technology for corner cracks of microalloy steel sheet billet
A technology of micro-alloy steel and control equipment, which is applied in the field of thin slab continuous casting and rolling of steel, can solve the problems of reducing micro-alloy and nitrogen content, difficulty in stable control, and high difficulty, so as to reduce stress, increase cooling speed, and improve Effects on Tissue Plasticity
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[0038] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.
[0039] The following is a further description of an embodiment of a CSP producing an SS400-B steel thin slab with a mold thickness of 90 mm at a continuous casting speed of 4.0 m / min with reference to the accompanying drawings.
[0040] In this embodiment, the edge and corner crack control equipment of the microalloyed steel thin slab includes a secondary cooling water distribution system, a mold and a new enhanced spray system in the narrow-surface foot roll area of the mold. Among them, the secondary cooling water distribution system of the slab wide face adopts the original secondary cooling water distribution system based on target surface temperature control. The mold used is a high-eff...
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