IE27831B1 - Improvements relating to alloys of iron and chromium - Google Patents
Improvements relating to alloys of iron and chromiumInfo
- Publication number
- IE27831B1 IE27831B1 IE35264A IE35264A IE27831B1 IE 27831 B1 IE27831 B1 IE 27831B1 IE 35264 A IE35264 A IE 35264A IE 35264 A IE35264 A IE 35264A IE 27831 B1 IE27831 B1 IE 27831B1
- Authority
- IE
- Ireland
- Prior art keywords
- ladle
- slag
- iron
- reductant
- alloy
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/005—Manufacture of stainless steel
-
- 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
-
- 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
- C22C33/00—Making ferrous alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A process for the production of extra low carbon stainless steel comprises simultaneously introducing into a ladle a solid crushed reductant alloy of iron and silicon (e.g. Fe-Si containing 45-75% Si) and a molten basic iron ore slag, reladling the contents of the ladle, removing the slag and then adding any necessary alloying ingredients to make the stainless steel. The alloying additions may be made in any or all of the following ways: (a) suitable oxides or other compounds may be included in the slag for reduction; (b) they may be included in the reductant alloy; (c) they may be added to the ladle reaction mixture in the solid or molten state; (d) they may be added to the remelted cast product.
[GB1004443A]
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA631393 | 1963-04-01 | ||
| ZA634805 | 1963-10-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE27831L IE27831L (en) | 1964-10-01 |
| IE27831B1 true IE27831B1 (en) | 1968-09-25 |
Family
ID=27130908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE35264A IE27831B1 (en) | 1963-04-01 | 1964-04-01 | Improvements relating to alloys of iron and chromium |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT266190B (en) |
| BE (1) | BE645983A (en) |
| DE (1) | DE1433619A1 (en) |
| ES (1) | ES298202A1 (en) |
| FR (1) | FR1386936A (en) |
| GB (1) | GB1004443A (en) |
| IE (1) | IE27831B1 (en) |
| NL (1) | NL6403394A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO20180804A1 (en) * | 2018-06-11 | 2019-12-12 | Elkem Materials | Silicon based alloy, method for the production thereof and use of such alloy |
-
1964
- 1964-03-25 GB GB12719/64A patent/GB1004443A/en not_active Expired
- 1964-03-26 DE DE19641433619 patent/DE1433619A1/en active Pending
- 1964-03-31 ES ES298202A patent/ES298202A1/en not_active Expired
- 1964-03-31 NL NL6403394A patent/NL6403394A/xx unknown
- 1964-04-01 IE IE35264A patent/IE27831B1/en unknown
- 1964-04-01 FR FR969338A patent/FR1386936A/en not_active Expired
- 1964-04-01 BE BE645983D patent/BE645983A/xx unknown
- 1964-04-01 AT AT284264A patent/AT266190B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| AT266190B (en) | 1968-11-11 |
| DE1433619A1 (en) | 1968-12-05 |
| BE645983A (en) | 1964-07-31 |
| FR1386936A (en) | 1965-01-22 |
| NL6403394A (en) | 1964-10-02 |
| IE27831L (en) | 1964-10-01 |
| ES298202A1 (en) | 1964-08-16 |
| GB1004443A (en) | 1965-09-15 |
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