CA2054395A1 - Method of making high silicon, low carbon regular grain oriented silicon steel - Google Patents
Method of making high silicon, low carbon regular grain oriented silicon steelInfo
- Publication number
- CA2054395A1 CA2054395A1 CA 2054395 CA2054395A CA2054395A1 CA 2054395 A1 CA2054395 A1 CA 2054395A1 CA 2054395 CA2054395 CA 2054395 CA 2054395 A CA2054395 A CA 2054395A CA 2054395 A1 CA2054395 A1 CA 2054395A1
- Authority
- CA
- Canada
- Prior art keywords
- silicon steel
- silicon
- rate
- hot band
- gauge
- 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
Landscapes
- Soft Magnetic Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
A process of producing high silicon, low melt carbon regular grain electrical silicon steel having a final gauge of from 14 mils (0.35 mm) to about 6 mils (0.15 mm) or less, including the steps of providing a hot band and removing the hot band scale, if needed. The silicon steel is cold rolled to intermediate gauge and subjected to an intermediate anneal at a soak temperature of about 1650° F
(900° C) to about 1700° F (930° C). Thereafter, the silicon steel is cooled in a first stage slow cooling at a rate of about 500° F (280° C) to about 1050° F
(585° C) per minute down to about 1100° F ~ 50° F
(595° C ~ 30° C). The silicon steel is then subjected to a second stage fast cooling down to from about 600° F (315° C) to about 1000° F (540° C) at acooling rate of from about 2500° F (1390° C) to about 3500° F (1945° C) per minute followed by a water quench. The silicon steel is cold rolled to final gauge, decarburized, coated with an annealing separator and final annealed. Preferably, but optionally, the hot band is annealed prior to the first cold rolling. Preferably, but optionally, the final gauge silicon steel prior to decarburization is subject to an ultra-rapid annealing treatment at a rate greater than 180° F (100° C) per second to a temperature greater than 1250° F (675° C).
(900° C) to about 1700° F (930° C). Thereafter, the silicon steel is cooled in a first stage slow cooling at a rate of about 500° F (280° C) to about 1050° F
(585° C) per minute down to about 1100° F ~ 50° F
(595° C ~ 30° C). The silicon steel is then subjected to a second stage fast cooling down to from about 600° F (315° C) to about 1000° F (540° C) at acooling rate of from about 2500° F (1390° C) to about 3500° F (1945° C) per minute followed by a water quench. The silicon steel is cold rolled to final gauge, decarburized, coated with an annealing separator and final annealed. Preferably, but optionally, the hot band is annealed prior to the first cold rolling. Preferably, but optionally, the final gauge silicon steel prior to decarburization is subject to an ultra-rapid annealing treatment at a rate greater than 180° F (100° C) per second to a temperature greater than 1250° F (675° C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2054395 CA2054395C (en) | 1991-10-28 | 1991-10-28 | Method of making high silicon, low carbon regular grain oriented silicon steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2054395 CA2054395C (en) | 1991-10-28 | 1991-10-28 | Method of making high silicon, low carbon regular grain oriented silicon steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2054395A1 true CA2054395A1 (en) | 1993-04-29 |
| CA2054395C CA2054395C (en) | 1998-02-10 |
Family
ID=4148652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2054395 Expired - Fee Related CA2054395C (en) | 1991-10-28 | 1991-10-28 | Method of making high silicon, low carbon regular grain oriented silicon steel |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2054395C (en) |
-
1991
- 1991-10-28 CA CA 2054395 patent/CA2054395C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2054395C (en) | 1998-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |