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무방향성 규소강판에서 냉간압연이 자기적 성질에 미치는 영향
박인식,한봉희,우종수 대한금속재료학회(대한금속학회) 1983 대한금속·재료학회지 Vol.21 No.6
The effect of cold rolling on the magnetic properties of nonoriented electrical steel sheet containing 3% silicon was examined by the observation of microstructure and texture analysis. Grain size of each specimen was maximum when the reduction rate of 2nd cold rolling was 5% and it gradually reduced as the rate increased. It was thought that grain growth of 2nd cold rolled specimen was occurred by random, abnormal grain growth. In view of the texture of final product, specimens processed by single cold rolling method had (222) texture, which is unfavorable to magnetic properties, but the ones processed by double cold rolling method had nearly random texture. Specimen with 2nd cold reduction of 5%, thus, had the minimum iron-core loss.