HEATPROOF DOMAIN REFINNING METHOD USING CHEMICALLY ETCHED PITS ON THE SURFACE OF GRAIN-ORIENTED 3-PERCENT SI-FE

被引：12

作者：

YABUMOTO, M ^{[1
]}

KOBAYASHI, H ^{[1
]}

NOZAWA, T ^{[1
]}

HIROSE, K ^{[1
]}

TAKAHASHI, N ^{[1
]}

机构：

[1] NIPPON STEEL CO,HIROHATA WORKES,HIMEJI 67111,JAPAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1987年 / 23卷 / 05期

关键词：

MAGNETIC CORES - Magnetic Properties - SILICON STEEL - STEEL HEAT TREATMENT - Annealing;

D O I：

10.1109/TMAG.1987.1065411

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The experimental results of a new heat proof domain refining method for grain-oriented 3% Si-Fe sheets are described. By using laser irradiation and nitric acid etching, small and shallow pits arranged in lines transverse to rolling direction were made on the surface of Si-Fe sheets. Typically the size of these pits was 0. 3 mm in diameter and 0. 02 mm in depth, spot distance was 0. 3 mm and line distance was 5 mm. After recoating and stress relief annealing at 800 degree C for 2 hours, the iron losses of these Si-Fe sheets were reduced beyond 15%. These materials reduce iron losses of wound type cores which need a high temperature annealing in the manufacture.

引用

页码：3062 / 3063

页数：2

共 3 条

[1] DOMAIN CONTROL BY SPARK ABLATION [J].