FR2393850A2 - Oxygen refining of steel in a converter - where the temp. of the molten steel can be predicted - Google Patents
Oxygen refining of steel in a converter - where the temp. of the molten steel can be predictedInfo
- Publication number
- FR2393850A2 FR2393850A2 FR787817384A FR7817384A FR2393850A2 FR 2393850 A2 FR2393850 A2 FR 2393850A2 FR 787817384 A FR787817384 A FR 787817384A FR 7817384 A FR7817384 A FR 7817384A FR 2393850 A2 FR2393850 A2 FR 2393850A2
- Authority
- FR
- France
- Prior art keywords
- steel
- temp
- speed
- heat
- bath
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 3
- 238000007670 refining Methods 0.000 title abstract 3
- 239000010959 steel Substances 0.000 title abstract 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052760 oxygen Inorganic materials 0.000 title abstract 2
- 239000001301 oxygen Substances 0.000 title abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 239000007789 gas Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 238000009628 steelmaking 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
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The temp. (Ta) of a molten bath of steel during oxygen refining is predicted by measuring the value dP/dt is measured to determine the time (t) at which dP/dt is zero, where P is the bath wt. The bath temp. (T) is measured at time (t), and from this time, the decarburisation speed (dC/dt), and the speed (dO1/dt) at which O2 enters the slag, are measured and used in the equation: In the equation, Q is the quantity of heat in the bath; HC is the heat of combustion of carbon; F is the mole wt. factor for converting %O2 into the Fe lost by combustion; HFe is the heat of combustion of iron; QGU is the quantity of heat in the gases used; d(GI)/dt is the speed of prodn. of the gases used; d(PT)/dt is the speed of the unaccountable thermal losses. The result is the calculation of Ta at t+dt. Used specifically in steel making, the process can also be applied to the refining of nonferrous metals, e.g. Cu or Ni.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2407977 | 1977-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2393850A2 true FR2393850A2 (en) | 1979-01-05 |
Family
ID=10206033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR787817384A Pending FR2393850A2 (en) | 1977-06-09 | 1978-06-09 | Oxygen refining of steel in a converter - where the temp. of the molten steel can be predicted |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS544810A (en) |
| AU (1) | AU3667078A (en) |
| BE (1) | BE867924R (en) |
| DE (1) | DE2825265A1 (en) |
| FR (1) | FR2393850A2 (en) |
| IT (1) | IT1203185B (en) |
| LU (1) | LU79781A1 (en) |
| NL (1) | NL7806285A (en) |
-
1978
- 1978-05-30 AU AU36670/78A patent/AU3667078A/en active Pending
- 1978-06-06 IT IT68305/78A patent/IT1203185B/en active
- 1978-06-07 LU LU79781A patent/LU79781A1/en unknown
- 1978-06-07 BE BE188414A patent/BE867924R/en active
- 1978-06-08 DE DE19782825265 patent/DE2825265A1/en not_active Withdrawn
- 1978-06-08 JP JP6932278A patent/JPS544810A/en active Pending
- 1978-06-09 FR FR787817384A patent/FR2393850A2/en active Pending
- 1978-06-09 NL NL7806285A patent/NL7806285A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| IT1203185B (en) | 1989-02-15 |
| AU3667078A (en) | 1979-12-06 |
| BE867924R (en) | 1978-10-02 |
| LU79781A1 (en) | 1978-11-28 |
| JPS544810A (en) | 1979-01-13 |
| NL7806285A (en) | 1978-12-12 |
| IT7868305A0 (en) | 1978-06-06 |
| DE2825265A1 (en) | 1978-12-21 |
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