Method for manufacturing high-silicon composite electrical steel narrow-band product

Abstract

The invention relates to a method for manufacturing a high-silicon composite electrical steel narrow-band product. The method comprises the following steps that 1), the silicon content of a high-silicon composite material base material ranges from 0.0% to 4.0%; 2), the silicon content of high-silicon iron powder is more than 3.5%, and the particle size of the high-silicon iron powder is more than60 meshes; 3), core-spun yarn preparation technology is adopted, and the high-silicon iron powder is warpped by the base material so as to produce a high-silicon composite core-spun yarn; and a high-silicon composite core-spun flat belt is prepared by adopting a mechanical compaction mode or a cold roll pressing mode; 4), the high-silicon composite core-spun flat belt is sent into a furnace for heating so as to integrally sintering the high-silicon iron powder and the base material; and 5), the technological process for producing the high-silicon composite electrical steel narrow-strip productcan be selectively provided with working processes of acid pickling, cold rolling, heat treatment, coating and finishing. According to the method for manufacturing the high-silicon composite electrical steel narrow-band product, industrial production of the high-silicon composite electrical steel narrow-band product can be achieved, operation is simple, the cost is low, the technology is easy tocontrol, the operation efficiency is high, and an obtained high-performance high-silicon steel soft magnetic material is suitable for the field of manufacturing of high, refined, sharp electromagnet cores.

Description

technical field [0001] The invention relates to the technical field of electrical steel production, in particular to a method for manufacturing a high-silicon composite electrical steel narrow strip product. Background technique [0002] The silicon content in the electrical steel matrix reaches 6.5% to obtain the best comprehensive performance, but in industrial production, theoretically, the silicon content reaches 3.3%, and cold working cannot be carried out. For special-purpose high-silicon electrical steel materials, gas-phase silicon infiltration, cast-rolled thin strips, amorphous materials, powder die-casting and rolling technologies are often used for small-scale production according to requirements, and industrial-scale production cannot be realized, and the production process is complicated and expensive. High, the process is not easy to control, and the operating efficiency is low. Contents of the invention [0003] The present invention provides a method for ...

AI Technical Summary

Problems solved by technology

[0002] The silicon content in the electrical steel matrix reaches 6.5% to obtain the best comprehensive performance, but in industrial production, theoretically, the silicon content reaches 3.3%, and cold working cannot be carried out

For special-purpose high-silicon electrical steel materials, gas-phase silicon infiltration, cast-rolled thin strips, amorphous materials, powder die-casting and rolling technologies are often used for small-scale production according to requirements, and industrial-scale production cannot be realized, and the production process is complicated and expensive. High, the process is not easy to control, and the operation efficiency is low