Method for continuously preparing high-silicon steel sheet by thermal diffusion and continuous rolling device for high-silicon steel sheet

Abstract

The invention discloses a method for continuous preparation of a high-silicon sheet iron by thermal diffusion. The method consists five steps of: preparation of a hollow low-silicon steel sheet belt, material distribution, rolling, high-temperature diffusion and reeling, wherein a material distribution step is used for realizing uniform distribution of high-silicon powder between two low-silicon steel sheets, a rolling step is used for realizing tight mechanical bonding between the high-silicon powder and the low-silicon steel sheets, a high-temperature diffusion step is used for realizing metallurgical bonding, and an unreeling step and a reeling step are used for realizing possibility of continuous preparation of a high-silicon sheet iron belt in a silicon content not lower than 6.5 wt / %Si. The invention further provides a high-silicon sheet iron continuous rolling device. The high-silicon sheet iron continuous rolling device comprises a material distribution device, an unreeling guiding device, a rolling device, a high-temperature diffusion device and a reeling device, which are sequentially arranged from top to bottom. According to the method for the continuous preparation of the high-silicon sheet iron by the thermal diffusion and the high-silicon sheet iron continuous rolling device, the problem of large fragility of silicon steel prepared by the traditional rolling method is solved, the continuous preparation of a near-net-shaped high-silicon steel ribbon can be realized, the rolling process is simple, the energy consumption is low, and the rate of yield is high; and the method for the continuous preparation of the high-silicon sheet iron by the thermal diffusion and the high-silicon sheet iron continuous rolling device belong to green and pollution-free clean preparative techniques and are easily applied to industrial production.

Description

technical field [0001] The invention relates to a silicon steel preparation process and equipment, in particular to a high-silicon steel production process and equipment, which are applied in the field of continuous production of 6.5wt.% Si high-silicon steel sheets. Background technique [0002] Silicon steel is an important magnetic material used in the electric power and telecommunications industry to manufacture generators, motors, transformers, transformers, relays and other electrical instruments. The magnetostriction coefficient of high silicon steel with a silicon content of 6.5wt. It has the largest conductivity, high resistivity, and small eddy current loss. It is an ideal iron core material with low noise and low iron loss. However, due to the increase of silicon content, the brittleness of silicon steel sheet increases, and the traditional rolling method is difficult to process. Therefore, the silicon content of silicon steel sheet produced in large quantities is...

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Problems solved by technology

[0004] In order to solve the problems of the prior art, the object of the present invention is to overcome the defects of the prior art, provide a method for continuously preparing high-silicon steel sheets by thermal diffusion and a continuous rolling device for high-silicon steel sheets, and solve the problem of preparing high-silicon steel sheets by traditional rolling methods. The problem of high brittleness of silicon steel in the process can be used to continuously prepare high-silicon steel thin strips near the final shape. The rolling process is simple, the energy consumption is low, and the yield is high. It is a green and pollution-free clean preparation technology and is easy to apply to industrial production.

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