A Secondary Cooling Nozzle Arrangement Method for Silicon Steel Slab Continuous Casting Production

Abstract

The invention provides a secondary cooling nozzle arranging method for silicon steel slab continuous casting. The method includes that six nozzles are arranged on the inner arc and the outer arc of each roller gap of a continuous casting machine in the width direction to spray a continuous casting slab in a vertical bending section, wherein four nozzles are arranged in the middle, and the other two nozzles are arranged on the edge. In an arc section and a straightening section, four nozzles are arranged on the inner arc and the outer arc of each roller gap of the continuous casting machine in the width direction to spray the continuous casting slab, wherein two nozzles are arranged in the middle, and the other two are arranged on the edge. In a horizontal section, two nozzles are arranged on the inner arc and the outer arc of each roller gap of the continuous casting machine in the width direction to spray the continuous casting slab, and a nozzle is arranged on the inner arc and the outer arc of each roller gap of the continuous casting machine in the width direction to spray a continuous casting roller. By means of the nozzle arranging method, evenness of transverse temperature of the casting slab is greatly improved, corner crack is basically removed, and meanwhile the requirement of silicon steel production for different secondary cooling area cooling strengths is met.

Description

technical field [0001] The invention relates to the technical field of metal casting, in particular to a method for arranging secondary cooling nozzles for continuous casting of silicon steel slabs. Background technique [0002] The production process of continuously casting high-temperature molten steel into a billet with a certain cross-sectional shape and a certain size specification is called continuous steel casting. The equipment required to complete this process is called continuous casting equipment. The electromechanical and hydraulic integration of steel pouring equipment, continuous casting machine body equipment, cutting area equipment, dummy bar collection and conveying equipment constitutes the core equipment of continuous steel casting, which is customarily called continuous casting machine. [0003] Continuous casting machines can be classified in various forms. According to the structural shape, the continuous casting machine can be divided into vertical c...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a secondary cooling nozzle arrangement method for silicon steel slab continuous casting, to solve the problem that the existing technology cannot produce silicon steel due to the limitation of nozzle arrangement and other factors, and the probability of corner cracks is high, which seriously affects the casting process. billet quality and problems that limit the production of silicon steel

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