GB947151A - Improvements in or relating to the preparation of silicon iron strip - Google Patents
Improvements in or relating to the preparation of silicon iron stripInfo
- Publication number
- GB947151A GB947151A GB812659A GB812659A GB947151A GB 947151 A GB947151 A GB 947151A GB 812659 A GB812659 A GB 812659A GB 812659 A GB812659 A GB 812659A GB 947151 A GB947151 A GB 947151A
- Authority
- GB
- United Kingdom
- Prior art keywords
- annealed
- compact
- sintered
- produce
- sintering
- 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.)
- Expired
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
- C21D8/1205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular fabrication or treatment of ingot or slab
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0026—Matrix based on Ni, Co, Cr or alloys thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Soft Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
In a process of producing sintered grain oriented silicon-iron strip, a mixture of Si and Fe powder, preferably 95-97 1/2 % Fe and 2 1/2 -5% Si, is compacted, sintered, cold rolled and annealed, the sintering and annealing being conducted in hydrogen containing a controlled proportion of water vapour so as to produce a dispersed phase of SiO2 in the compact, and the sintered compact is then cold-rolled with intermediate annealing to form a strip which is then annealed in a non-oxidizing atmosphere to produce the required secondary recrystallization. The pressed compact is preferably first deoxidized by heating in hydrogen at 300 DEG C. and the dispersed SiO2 phase is formed by sintering in moist hydrogen the dew point of which is adjusted according to the sintering temperature, e.g. -30 DEG C. at 1050 DEG C., -55 DEG C. at 1100 DEG C. and also the density of the "green compact". The sintered compact with the dispersed SiO2 phase is then cold rolled and annealed in stages and then annealed for 10 hours at 1350 DEG C. in a non-oxidizing atmosphere to produce the required structure. Final annealing at 1050-1350 DEG C. may then be effected after the final cold rolling to size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB812659A GB947151A (en) | 1959-03-09 | 1959-03-09 | Improvements in or relating to the preparation of silicon iron strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB812659A GB947151A (en) | 1959-03-09 | 1959-03-09 | Improvements in or relating to the preparation of silicon iron strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB947151A true GB947151A (en) | 1964-01-22 |
Family
ID=9846255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB812659A Expired GB947151A (en) | 1959-03-09 | 1959-03-09 | Improvements in or relating to the preparation of silicon iron strip |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB947151A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104342542A (en) * | 2014-11-04 | 2015-02-11 | 武汉钢铁(集团)公司 | Production method of Bi-containing high magnetic induction oriented silicon steel with excellent bottom layer |
-
1959
- 1959-03-09 GB GB812659A patent/GB947151A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104342542A (en) * | 2014-11-04 | 2015-02-11 | 武汉钢铁(集团)公司 | Production method of Bi-containing high magnetic induction oriented silicon steel with excellent bottom layer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB873149A (en) | Method of producing oriented silicon steel | |
| GB833115A (en) | Improvements in grain oriented sheet silicon steel | |
| GB1478948A (en) | Method of manufacturing a grain orientated steel sheet | |
| GB1001281A (en) | A deep drawing, non-ageing cold rolled steel sheet | |
| US4023990A (en) | Dynamo or electro band | |
| GB947151A (en) | Improvements in or relating to the preparation of silicon iron strip | |
| GB1090569A (en) | A process for the production of silicon steel | |
| GB1197800A (en) | Production of Cube-On-Edge Oriented Silicon-Iron. | |
| GB845167A (en) | Improvements in magnetic material | |
| GB964707A (en) | Method of producing a cube-on-face texture in silicon and/or aluminium-containing iron alloy sheet or strip | |
| GB1404388A (en) | Processes for the production of grain-oriented steel sheet | |
| GB945066A (en) | Improvements in or relating to a method of making ferromagnetic material from a nickel base alloy | |
| GB945581A (en) | Cube textured iron silicon magnetic alloy sheets and process for making the same | |
| GB870220A (en) | Non oriented silicon-iron sheet stock and process of making it | |
| GB852554A (en) | Improvements in or relating to iron-aluminium materials and to methods of producing such materials | |
| GB917576A (en) | Heavy gauge double oriented magnetic sheet material | |
| GB618293A (en) | Making products of powdered iron or iron alloys | |
| GB923678A (en) | Production of silicon steel sheets | |
| GB943448A (en) | Improvements in or relating to the production of electrical steel | |
| GB863989A (en) | Improvements in the rolling of strip from powder | |
| GB940234A (en) | Ferrite and method of making ferrite | |
| GB1030350A (en) | Method for making bidirectional iron-aluminium alloy magnetic sheet | |
| JPS5284117A (en) | Preparation of cold rolled high tension steel plate of good cold forma bility | |
| GB1083290A (en) | Method of improving the magnetic properties of silicon steel electrical sheets | |
| GB911660A (en) | Double oriented iron-silicon magnetic sheets |