CA2665220C - Affinage de l'acier - Google Patents
Affinage de l'acier Download PDFInfo
- Publication number
- CA2665220C CA2665220C CA2665220A CA2665220A CA2665220C CA 2665220 C CA2665220 C CA 2665220C CA 2665220 A CA2665220 A CA 2665220A CA 2665220 A CA2665220 A CA 2665220A CA 2665220 C CA2665220 C CA 2665220C
- Authority
- CA
- Canada
- Prior art keywords
- calcium
- amount
- steel
- molten steel
- containing silicon
- 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.)
- Active
Links
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
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C2300/00—Process aspects
- C21C2300/08—Particular sequence of the process steps
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
Un procédé de formation et daffinage dacier portant du silicium fondu par addition dun additif au silicium contenant du calcium. On détermine si la quantité de calcium dans ladditif au silicium contenant du calcium est supérieure ou inférieure à la quantité de calcium souhaitée dans lacier fini. Si elle est supérieure à la quantité de calcium souhaitée dans lacier fini, on ajoute la quantité dadditif au silicium contenant du calcium correspondant au calcium en excès précocement dans la désoxydation ou laffinage pour combinaison avec de loxygène, du soufre et dautres impuretés dans laffinage, et on ajoute ladditif au silicium contenant du calcium contenant la quantité totale de calcium souhaitée dans lacier fini après la désulfurisation de lacier fondu et avant coulage. Si la quantité de calcium dans ladditif au silicium contenant du calcium ne fournit pas la quantité totale de calcium souhaitée dans lacier fini, on ajoute une quantité supplémentaire de calcium après désulfurisation de lacier fondu et avant coulage à lacier fondu pendant laffinage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2665220A CA2665220C (fr) | 2009-05-01 | 2009-05-01 | Affinage de l'acier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2665220A CA2665220C (fr) | 2009-05-01 | 2009-05-01 | Affinage de l'acier |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2665220A1 CA2665220A1 (fr) | 2010-11-01 |
CA2665220C true CA2665220C (fr) | 2019-02-19 |
Family
ID=43063699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2665220A Active CA2665220C (fr) | 2009-05-01 | 2009-05-01 | Affinage de l'acier |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2665220C (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115449599B (zh) * | 2022-10-11 | 2023-09-19 | 安徽富凯特材有限公司 | 一种钢水钙脱氧的方法 |
-
2009
- 2009-05-01 CA CA2665220A patent/CA2665220C/fr active Active
Also Published As
Publication number | Publication date |
---|---|
CA2665220A1 (fr) | 2010-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request |
Effective date: 20140429 |