GB1135214A - Desulfurizing coating for ferrous material and method of using it - Google Patents
Desulfurizing coating for ferrous material and method of using itInfo
- Publication number
- GB1135214A GB1135214A GB52519/65A GB5251965A GB1135214A GB 1135214 A GB1135214 A GB 1135214A GB 52519/65 A GB52519/65 A GB 52519/65A GB 5251965 A GB5251965 A GB 5251965A GB 1135214 A GB1135214 A GB 1135214A
- Authority
- GB
- United Kingdom
- Prior art keywords
- maximum
- stock
- coating
- annealing
- cao
- 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
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title abstract 3
- 239000011248 coating agent Substances 0.000 title abstract 3
- 238000000576 coating method Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 title abstract 2
- 230000003009 desulfurizing effect Effects 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000000137 annealing Methods 0.000 abstract 3
- 229910018619 Si-Fe Inorganic materials 0.000 abstract 1
- 229910008289 Si—Fe Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 238000005097 cold rolling Methods 0.000 abstract 1
- 238000005098 hot rolling Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000001953 recrystallisation Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/72—Temporary coatings or embedding materials applied before or during heat treatment during chemical change of surfaces
-
- 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
- C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
- C21D3/02—Extraction of non-metals
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
Abstract
1,135,214. Desulphurizing ferrous material; annealing silicon-iron. ARMCO STEEL CORP. Dec.10, 1965 [Dec.21, 1964], No.52519/65. Headings C7A and C7D. [Also in Division B2] Ferrous stock, particularly Si-Fe containing 2À5 to 4% Si, maximum 0À04% C, maximum 0À03% S, 0À02 to 0À1% Mn, maximum 0À0035% oxide inclusions and balance Fe, is desulphurized, e.g. after hot and cold rolling to intermediate gauge and decarburizing in wet H 2 to reduce the C content to maximum 0À006%, by annealing the coiled stock at 2000-2300 F. in dry H 2 while the surfaces are covered with a coating containing 2 to 10% CaO and balance MgO until the S content is reduced to at most 6 ppm. The stock is preferably coated by means of rubber rolls using a slurry of the CaO-MgO mixture with water. After removing the coating the stock may be cold rolled to final gauge, coated with an alumina annealing separator, recoiled and subjected to a final box anneal at 1900-2300 F. for secondary recrystallization to form cube-on-face or (100) [001] texture.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US420091A US3379581A (en) | 1964-12-21 | 1964-12-21 | Desulfurizing coating for ferrous material and method of using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1135214A true GB1135214A (en) | 1968-12-04 |
Family
ID=23665042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB52519/65A Expired GB1135214A (en) | 1964-12-21 | 1965-12-10 | Desulfurizing coating for ferrous material and method of using it |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3379581A (en) |
| BE (1) | BE674019A (en) |
| CH (1) | CH473898A (en) |
| DE (1) | DE1458974B2 (en) |
| ES (1) | ES320848A1 (en) |
| FR (1) | FR1460444A (en) |
| GB (1) | GB1135214A (en) |
| SE (1) | SE319503B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3544396A (en) * | 1967-08-28 | 1970-12-01 | Armco Steel Corp | Silicon steel coated with magnesia containing chromic oxide |
| IT1116431B (en) * | 1977-04-27 | 1986-02-10 | Centro Speriment Metallurg | ANNEALING SEPARATOR |
| BE854833A (en) * | 1976-05-24 | 1977-09-16 | Centro Sperimentale Metallurgico Spa | Annealing separator |
| US4096001A (en) * | 1977-03-07 | 1978-06-20 | General Electric Company | Boron-containing electrical steel having a calcium borate coating and magnesia overcoating, and process therefor |
| US4160708A (en) * | 1978-04-24 | 1979-07-10 | General Electric Company | Coated silicon-iron product and process therefor using calcium formate |
| US4582547A (en) * | 1984-05-07 | 1986-04-15 | Allegheny Ludlum Steel Corporation | Method for improving the annealing separator coating on silicon steel and coating therefor |
| US5346563A (en) * | 1991-11-25 | 1994-09-13 | United Technologies Corporation | Method for removing sulfur from superalloy articles to improve their oxidation resistance |
| US5547519A (en) * | 1995-02-28 | 1996-08-20 | Armco Inc. | Magnesia coating and process for producing grain oriented electrical steel for punching quality |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA570532A (en) * | 1959-02-10 | W. Carpenter Victor | Coating silicon steel with alkaline earth metal oxide | |
| US1869025A (en) * | 1931-05-26 | 1932-07-26 | Westinghouse Electric & Mfg Co | Magnetic material and method of producing same |
| US2394047A (en) * | 1941-07-24 | 1946-02-05 | Westinghouse Electric Corp | Process of coating ferrous silicon magnetic material |
| BE629681A (en) * | 1962-03-19 | |||
| US3278348A (en) * | 1965-01-28 | 1966-10-11 | Westinghouse Electric Corp | Process for producing doubly oriented cube-on-face magnetic sheet material |
-
1964
- 1964-12-21 US US420091A patent/US3379581A/en not_active Expired - Lifetime
-
1965
- 1965-12-10 GB GB52519/65A patent/GB1135214A/en not_active Expired
- 1965-12-17 ES ES0320848A patent/ES320848A1/en not_active Expired
- 1965-12-18 DE DE19651458974 patent/DE1458974B2/en active Pending
- 1965-12-20 SE SE16488/65A patent/SE319503B/xx unknown
- 1965-12-20 BE BE674019D patent/BE674019A/xx unknown
- 1965-12-20 FR FR43007A patent/FR1460444A/en not_active Expired
- 1965-12-21 CH CH1756365A patent/CH473898A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ES320848A1 (en) | 1966-07-01 |
| DE1458974A1 (en) | 1970-01-08 |
| FR1460444A (en) | 1966-11-25 |
| SE319503B (en) | 1970-01-19 |
| BE674019A (en) | 1966-06-20 |
| CH473898A (en) | 1969-06-15 |
| DE1458974B2 (en) | 1972-01-27 |
| US3379581A (en) | 1968-04-23 |
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