GB1167391A - Method and Apparatus for the Continuous Oxygen Content Monitoring of Molten Steel During Vacuum Deoxidation - Google Patents
Method and Apparatus for the Continuous Oxygen Content Monitoring of Molten Steel During Vacuum DeoxidationInfo
- Publication number
- GB1167391A GB1167391A GB48194/66A GB4819466A GB1167391A GB 1167391 A GB1167391 A GB 1167391A GB 48194/66 A GB48194/66 A GB 48194/66A GB 4819466 A GB4819466 A GB 4819466A GB 1167391 A GB1167391 A GB 1167391A
- Authority
- GB
- United Kingdom
- Prior art keywords
- molten steel
- oxygen
- fed
- rate
- analogue
- 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
- 229910000831 Steel Inorganic materials 0.000 title abstract 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract 5
- 239000001301 oxygen Substances 0.000 title abstract 5
- 229910052760 oxygen Inorganic materials 0.000 title abstract 5
- 239000010959 steel Substances 0.000 title abstract 5
- 238000012544 monitoring process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 6
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 238000005086 pumping Methods 0.000 abstract 2
- 238000007872 degassing Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 238000009849 vacuum degassing Methods 0.000 abstract 1
Classifications
-
- 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
- C21C7/10—Handling in a vacuum
-
- 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
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
1,167,391. Monitoring the degassing of molten steel. LECTROMELT CORP. 27 Oct., 1966 [18 Nov., 1965], No. 48194/65. Heading B1X. The rate of oxygen removal from vacuum degassing apparatus for treating molten steel, comprising a vacuum chamber connected to evacuating means, is determined by combining measurements of the proportion of at least one of the oxygen-containing gases in the discharge gases from the chamber, of the amount of molten metal treated therein, and of the rate of gas removal therefrom. As shown, molten steel 12 is drawn from a ladle 11 into a vacuum vessel 10 by the action of a steam ejector pumping system 25; the weight of the metal treated is determined by a strain gauge 66 attached to the ram 19 supporting the vessel 10, or by a measuring device 65 below the ladle 11, and this information is fed to a recorder 68 and to an analogue computer 30. The rate of gas removal is measured by determining the suction pressure of the pumping system 25 and converting it by means of an analogue function generator 70 into an electrical signal which is also fed to the analogue computer 30. A portion of the discharge gases is withdrawn through filters 44 and 51 and analysed for percentages of H 2 , CO, and CO 2 by a gas analyser 38, e.g. by a thermal conductivity cell for the H 2 and by infra-red cells for the CO and CO 2 . These percentages are recorded by recorders 58, 60, and that of the CO is transmitted also to the analogue computer 30. The original amount of oxygen present in the grade of steel being treated is determined empirically, and this information is also fed into the computer 30, enabling it to determine the amount of combined and free oxygen remaining in the melt.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50844065A | 1965-11-18 | 1965-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1167391A true GB1167391A (en) | 1969-10-15 |
Family
ID=24022759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB48194/66A Expired GB1167391A (en) | 1965-11-18 | 1966-10-27 | Method and Apparatus for the Continuous Oxygen Content Monitoring of Molten Steel During Vacuum Deoxidation |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE689825A (en) |
| DE (1) | DE1598822A1 (en) |
| FR (1) | FR1498869A (en) |
| GB (1) | GB1167391A (en) |
| NL (1) | NL6615870A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6173817A (en) * | 1984-09-18 | 1986-04-16 | Sumitomo Electric Ind Ltd | Molten steel controlled refining method and refining equipment |
-
1966
- 1966-10-27 GB GB48194/66A patent/GB1167391A/en not_active Expired
- 1966-11-08 FR FR82841A patent/FR1498869A/en not_active Expired
- 1966-11-10 NL NL6615870A patent/NL6615870A/xx unknown
- 1966-11-16 DE DE19661598822 patent/DE1598822A1/en active Pending
- 1966-11-17 BE BE689825D patent/BE689825A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE689825A (en) | 1967-05-02 |
| FR1498869A (en) | 1967-10-20 |
| NL6615870A (en) | 1967-05-19 |
| DE1598822A1 (en) | 1970-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |