JPS5573818A - Production of directional electromagnetic steel plate - Google Patents
Production of directional electromagnetic steel plateInfo
- Publication number
- JPS5573818A JPS5573818A JP14332478A JP14332478A JPS5573818A JP S5573818 A JPS5573818 A JP S5573818A JP 14332478 A JP14332478 A JP 14332478A JP 14332478 A JP14332478 A JP 14332478A JP S5573818 A JPS5573818 A JP S5573818A
- Authority
- JP
- Japan
- Prior art keywords
- annealing
- steel plate
- cold rolling
- time
- slab
- 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 economically produce the superior captioned steel plate by rolling the slab blank for the directional electromagnetic steel plate of low C contents to the final plate thickness by a twice cold rolling method of performing cold rolling of the first time at the specific draft or more then subjecting the steel plate to box annealing or open coil annealing. CONSTITUTION:The slab for directional electromagnetic steel plate which is made C0.02% or less in the molten steel stage and is then made to a slab by a continuous casting method or ingot making method is used as a blank. Said blank is rolled to the final plate thickness by a twice cold rolling method in which intermediate annealing is done after hot rolling. At this time, the cold rolling of the first time is accomplished at draft 50% or less to break the texture and microsturcture of the hot rolled plate down to immediate before secondary recrystallization annealing, thereby fining the structure to a moderate degree. Intermediate annealing is accomplished in a decarburizing atmosphere containing wet hydrogen to cause decarburization, thence long-time hot and annealing such as box annealing or open coil annealing is performed after the cold rolling of the second time, whereby the secondary recrystals are stably formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14332478A JPS5573818A (en) | 1978-11-22 | 1978-11-22 | Production of directional electromagnetic steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14332478A JPS5573818A (en) | 1978-11-22 | 1978-11-22 | Production of directional electromagnetic steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5573818A true JPS5573818A (en) | 1980-06-03 |
| JPS5759287B2 JPS5759287B2 (en) | 1982-12-14 |
Family
ID=15336130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14332478A Granted JPS5573818A (en) | 1978-11-22 | 1978-11-22 | Production of directional electromagnetic steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5573818A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5613433A (en) * | 1979-07-07 | 1981-02-09 | Nippon Steel Corp | Preparation of anisotropic electromagnetic steel plate having good cold rolling property |
| DE3232518A1 (en) * | 1981-12-11 | 1983-06-30 | Nippon Steel Corp., Tokyo | METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRO-STEEL SHEET |
| JP2008008702A (en) * | 2006-06-28 | 2008-01-17 | Yazaki Corp | Meter apparatus |
| CN100374601C (en) * | 2002-03-28 | 2008-03-12 | 新日本制铁株式会社 | Grain oriented electric silicon steel sheet or strip with extremely high adherence to coating and process for producing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5558332A (en) * | 1978-10-25 | 1980-05-01 | Nippon Steel Corp | Production of anisotropic electrical sheet |
-
1978
- 1978-11-22 JP JP14332478A patent/JPS5573818A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5558332A (en) * | 1978-10-25 | 1980-05-01 | Nippon Steel Corp | Production of anisotropic electrical sheet |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5613433A (en) * | 1979-07-07 | 1981-02-09 | Nippon Steel Corp | Preparation of anisotropic electromagnetic steel plate having good cold rolling property |
| DE3232518A1 (en) * | 1981-12-11 | 1983-06-30 | Nippon Steel Corp., Tokyo | METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRO-STEEL SHEET |
| US4592789A (en) * | 1981-12-11 | 1986-06-03 | Nippon Steel Corporation | Process for producing a grain-oriented electromagnetic steel sheet or strip |
| CN100374601C (en) * | 2002-03-28 | 2008-03-12 | 新日本制铁株式会社 | Grain oriented electric silicon steel sheet or strip with extremely high adherence to coating and process for producing the same |
| JP2008008702A (en) * | 2006-06-28 | 2008-01-17 | Yazaki Corp | Meter apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5759287B2 (en) | 1982-12-14 |
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