Claims
- 1. A non-oriented magnetic material produced by hot-rolling a slab consisting essentially of .ltoreq.0.065% C, .ltoreq.0.10% Al, 0.31 to 3.15% Si, .ltoreq.0.020% O, .ltoreq.0.01% N and B being present in such amounts that the ratio of B/N is in the range of 0.50 to 2.50, and the rest being Fe and unavoidable impurities to obtain a hot-rolled sheet, subjecting the thus-obtained hot-rolled sheet to at least one cold-rolling step with intermediate annealing, when a plurality of steps is used, followed by a continuous annealing step to produce a non-oriented magnetic material.
- 2. A non-oriented magnetic material produced by hot-rolling a slab consisting essentially of .ltoreq.0.065% C, .ltoreq.0.10% Al, 0.31 to 3.15% Si, .ltoreq.0.020% O, .ltoreq.0.01% N and B being present in such amounts that the ratio of B/N is in the range of 0.50 to 2.50, and the rest being Fe and unavoidable impurities to obtain a hot-rolled sheet, subjecting the thus-obtained hot-rolled sheet to at least one cold-rolling step with intermediate annealing, when a plurality of steps is used, followed by a continuous annealing step and subjecting the sheet to a reannealing step to produce a non-oriented magnetic material.
- 3. A non-oriented magnetic material according to claim 1 or 2 which contains .ltoreq.2.00% Si.
- 4. A non-oriented magnetic material according to claim 1 or 2 wherein the ratio of B/N is 0.65-1.50.
Priority Claims (1)
Number |
Date |
Country |
Kind |
53-72097 |
Jun 1978 |
JPX |
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CROSS REFERENCE TO RELATED APPLICATION
This invention is a continuation of application Ser. No. 76,734, filed Sept. 18, 1979 now abandoned, which in turn is a continuation-in-part of application Ser. No. 47,995, filed June 13, 1979 now abandoned.
US Referenced Citations (9)
Continuations (1)
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Date |
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76734 |
Sep 1979 |
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Continuation in Parts (1)
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Number |
Date |
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47995 |
Jun 1979 |
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