JPS5789433A - Production of unidirectionally oriented electromagnetic steel plate having high magnetic flux density - Google Patents
Production of unidirectionally oriented electromagnetic steel plate having high magnetic flux densityInfo
- Publication number
- JPS5789433A JPS5789433A JP55165537A JP16553780A JPS5789433A JP S5789433 A JPS5789433 A JP S5789433A JP 55165537 A JP55165537 A JP 55165537A JP 16553780 A JP16553780 A JP 16553780A JP S5789433 A JPS5789433 A JP S5789433A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- steel plate
- production
- magnetic flux
- flux density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
Abstract
PURPOSE:To produce the titled steel plate stably by a method wherein magnetic stirring or unltrasonic vibration is applied to a molten silicon steel of specified composition to produce a slab having columnar crystal in a specified ratio, and the slab is cold rolled at a reduction ratio according to the heating temperature. CONSTITUTION:A melt of a silicon steel containing, by weight 2-4.5% of Si, 0.01-0.08% of C, 0.02-0.15% of Mn and a total amount of 0.005-0.1% of at least one element selected from the group consisting of S, Se, Sb, Bi, Pb, Sn and B is subjected to continuous casting in which it is applied with magnetic stirring or ultrasonic vibration during the solidification process, to obtain the slab having a volumetric ratio of columnar crystal adjusted to 30-70%. A steel strip produced from the slab by heating to 1,100-1,250 deg.C followed by hot rolling is subjected to two runs of cold rolling, with a process annealing therebetween, to attain a finished plate thickness and then decarburizing and final annealing treatments are conducted. The reduction ratio R(%) for the secondary cold rolling is set in accordance with the temperature T( deg.C) to which the slab was heated, so as to satisfy the condition of the expression.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55165537A JPS5843446B2 (en) | 1980-11-25 | 1980-11-25 | Manufacturing method of high magnetic flux density unidirectional electrical steel sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55165537A JPS5843446B2 (en) | 1980-11-25 | 1980-11-25 | Manufacturing method of high magnetic flux density unidirectional electrical steel sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5789433A true JPS5789433A (en) | 1982-06-03 |
JPS5843446B2 JPS5843446B2 (en) | 1983-09-27 |
Family
ID=15814263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55165537A Expired JPS5843446B2 (en) | 1980-11-25 | 1980-11-25 | Manufacturing method of high magnetic flux density unidirectional electrical steel sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5843446B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5185043A (en) * | 1987-12-26 | 1993-02-09 | Kawasaki Steel Corporation | Method for producing low iron loss grain oriented silicon steel sheets |
US5261971A (en) * | 1989-04-14 | 1993-11-16 | Nippon Steel Corporation | Process for preparation of grain-oriented electrical steel sheet having superior magnetic properties |
EP0648847A1 (en) * | 1993-10-19 | 1995-04-19 | Nippon Steel Corporation | Production method of grain oriented electrical steel sheet having excellent magnetic characteristics |
US5512110A (en) * | 1992-04-16 | 1996-04-30 | Nippon Steel Corporation | Process for production of grain oriented electrical steel sheet having excellent magnetic properties |
US5597424A (en) * | 1990-04-13 | 1997-01-28 | Nippon Steel Corporation | Process for producing grain oriented electrical steel sheet having excellent magnetic properties |
EP0837149A2 (en) * | 1996-10-21 | 1998-04-22 | Kawasaki Steel Corporation | Grain-oriented electromagnetic steel sheet and process for producing the same |
-
1980
- 1980-11-25 JP JP55165537A patent/JPS5843446B2/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5472521A (en) * | 1933-10-19 | 1995-12-05 | Nippon Steel Corporation | Production method of grain oriented electrical steel sheet having excellent magnetic characteristics |
US5185043A (en) * | 1987-12-26 | 1993-02-09 | Kawasaki Steel Corporation | Method for producing low iron loss grain oriented silicon steel sheets |
US5261971A (en) * | 1989-04-14 | 1993-11-16 | Nippon Steel Corporation | Process for preparation of grain-oriented electrical steel sheet having superior magnetic properties |
US5597424A (en) * | 1990-04-13 | 1997-01-28 | Nippon Steel Corporation | Process for producing grain oriented electrical steel sheet having excellent magnetic properties |
US5512110A (en) * | 1992-04-16 | 1996-04-30 | Nippon Steel Corporation | Process for production of grain oriented electrical steel sheet having excellent magnetic properties |
EP0648847A1 (en) * | 1993-10-19 | 1995-04-19 | Nippon Steel Corporation | Production method of grain oriented electrical steel sheet having excellent magnetic characteristics |
EP0837149A2 (en) * | 1996-10-21 | 1998-04-22 | Kawasaki Steel Corporation | Grain-oriented electromagnetic steel sheet and process for producing the same |
EP0837149A3 (en) * | 1996-10-21 | 1998-07-15 | Kawasaki Steel Corporation | Grain-oriented electromagnetic steel sheet and process for producing the same |
US6039818A (en) * | 1996-10-21 | 2000-03-21 | Kawasaki Steel Corporation | Grain-oriented electromagnetic steel sheet and process for producing the same |
US6331215B1 (en) | 1996-10-21 | 2001-12-18 | Kawasaki Steel Corporation | Process for producing grain-oriented electromagnetic steel sheet |
Also Published As
Publication number | Publication date |
---|---|
JPS5843446B2 (en) | 1983-09-27 |
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