Preparation method of premixed raw material of ferrite magnet presintering material

Abstract

The invention relates to a preparation method of a premixed raw material of a ferrite magnet presintering material, belonging to the production field of the raw material of manufacturing industry. The method comprises the following steps: firstly, sending coarse slurry which is prepared by mixing premixed coarse material in a tube mill, performing continuous mixing and grinding in the tube mill to prepare uniform, regular and fine premixed raw material, then sending the premixed raw material to a large capacity precisely-controlled tank, and performing homogenizing treatment to the premixed raw material through the longitudinal circular stirring of pump delivery, the transverse stirring of the agitation impeller and the edge stirring of the vertical fins on the tank wall; and secondly, detecting the components, and adjusting accurately to prepare the premixed raw material with accurate components and uniform grain size. The method of the invention adopts continuous production and does not adopt the traditional and extensive batch production method of the ball mill, thus the production efficiency can be obviously increased, the labor intensity of the operator and the production cost can be reduced, the working environment can be improved, the grain size and components of the premixed raw material slurry product can be highly consistent and accurate and a solid foundation can be laid for the improvement of the quality grades of the downstream magnetic products.

Description

technical field [0001] The invention discloses a method for preparing premixed raw materials for permanent magnet ferrite pre-fired material, which belongs to the field of raw material production in manufacturing industry, and particularly relates to a raw material production method for wet production of permanent magnet ferrite pre-fired material. Background technique [0002] When preparing premixed raw materials for permanent magnet ferrite calcined materials, the key is to control the uniformity of the particle size of the premixed raw materials and the accuracy of the mixing ingredients. Accurate, it will inevitably lead to different sintering temperature of the pre-sintered material in subsequent production, thus causing a lot of waste products, even if the pre-sintered material is barely sintered and formed after adjusting the sintering temperature, the sintering temperature will also be different in the subsequent production of magnetic devices, which will eventually ...

AI Technical Summary

Problems solved by technology

[0006] Combined ball mill and sand mill are used to make materials, and the way of opening and closing the door of the ball mill is changed to pre-mixing, and then enter the ball mill through the pipeline, and add the auxiliary abrasive of the follow-up sand mill. This method solves the problem of improving production compared with ball mill feeding Efficiency improves the uniformity of mixing, but it is still intermittent production, and there is still a large mechanical footprint, and the slurry is still easy to pollute the environment

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