IT1069068B - Grain oriented silicon steel annealing separator - based on magnesium oxide and contg. rare earth oxides or metal silicates - Google Patents
Grain oriented silicon steel annealing separator - based on magnesium oxide and contg. rare earth oxides or metal silicatesInfo
- Publication number
- IT1069068B IT1069068B IT4962576A IT4962576A IT1069068B IT 1069068 B IT1069068 B IT 1069068B IT 4962576 A IT4962576 A IT 4962576A IT 4962576 A IT4962576 A IT 4962576A IT 1069068 B IT1069068 B IT 1069068B
- Authority
- IT
- Italy
- Prior art keywords
- rare earth
- sheet
- contg
- grain oriented
- magnesium oxide
- Prior art date
Links
Landscapes
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
An annealing separator for grain oriented Si steel sheets based on MgO contains in addn. oxides of rare earth metals, cpds. of rare earth metals which thermally decompose to oxides, or silicates. The separator economically improves the annealing operation and also improves the magnetic and electrical properties of the sheet. The surface of the annealed sheet has cavities contg. a glass film which affects the roughness and the resistivity. Rates of denitriding and desulphurisation are increased. The adhesion of vitreous films to the sheet is also increased. By reducing the roughness the drawability is improved, leading to improved magnetic properties. The final annealing time is reduced. In certain cases the additional insulating glass can be eliminated. There is also fewer problems when mechanically treating the sheet.
Priority Applications (18)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4962576A IT1069068B (en) | 1976-05-24 | 1976-05-24 | Grain oriented silicon steel annealing separator - based on magnesium oxide and contg. rare earth oxides or metal silicates |
BE6046014A BE854833A (en) | 1976-05-24 | 1977-05-18 | Annealing separator |
BG7736360A BG39978A3 (en) | 1976-05-24 | 1977-05-19 | Composition of diluting agent for annealing |
DE19777716282U DE7716282U1 (en) | 1976-05-24 | 1977-05-23 | GRAIN-ORIENTED SILICON STEEL TAPE |
NO771781A NO147035C (en) | 1976-05-24 | 1977-05-23 | MAGNESIUM OXIDE BASE GLASS SEPARATOR AND USE OF SAME |
DE2723174A DE2723174C2 (en) | 1976-05-24 | 1977-05-23 | Annealing separator for grain-oriented silicon steel strips |
FR7715632A FR2352888A1 (en) | 1976-05-24 | 1977-05-23 | Annealing separator |
SE7706015A SE439020B (en) | 1976-05-24 | 1977-05-23 | annealing |
RO7790439A RO71135A (en) | 1976-05-24 | 1977-05-23 | MATERIAL FOR COVERING SEMIFABRICATES OF FIRE-SILICON ALIENS |
LU77395A LU77395A1 (en) | 1976-05-24 | 1977-05-23 | |
DD7700199063A DD130664A5 (en) | 1976-05-24 | 1977-05-23 | RELEASE AGENT FOR GLOWING HISTORIZED CORNORIENTED SILICON STEEL STRIP |
GB21571/77A GB1563853A (en) | 1976-05-24 | 1977-05-23 | Annealing separators |
PL1977198370A PL114517B1 (en) | 1976-05-24 | 1977-05-24 | Annealing separator |
JP5949477A JPS534714A (en) | 1976-05-24 | 1977-05-24 | Annealing separating agent |
CS343077A CS207458B1 (en) | 1976-05-24 | 1977-05-24 | annealing separator |
HU77CE1134A HU181650B (en) | 1976-05-24 | 1977-05-24 | Separating agent for heat treating textured silicon steel hands |
ES459101A ES459101A1 (en) | 1976-05-24 | 1977-05-24 | Annealing separators |
NL7705718A NL7705718A (en) | 1976-05-24 | 1977-05-24 | PROCESS FOR THE PREPARATION OF A RELIEF DETERMINANT. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT4962576A IT1069068B (en) | 1976-05-24 | 1976-05-24 | Grain oriented silicon steel annealing separator - based on magnesium oxide and contg. rare earth oxides or metal silicates |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1069068B true IT1069068B (en) | 1985-03-25 |
Family
ID=11271194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT4962576A IT1069068B (en) | 1976-05-24 | 1976-05-24 | Grain oriented silicon steel annealing separator - based on magnesium oxide and contg. rare earth oxides or metal silicates |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1069068B (en) |
-
1976
- 1976-05-24 IT IT4962576A patent/IT1069068B/en active
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