RU98108373A - METHOD OF EXTENSION HEATING OF STEEL - Google Patents
METHOD OF EXTENSION HEATING OF STEELInfo
- Publication number
- RU98108373A RU98108373A RU98108373/02A RU98108373A RU98108373A RU 98108373 A RU98108373 A RU 98108373A RU 98108373/02 A RU98108373/02 A RU 98108373/02A RU 98108373 A RU98108373 A RU 98108373A RU 98108373 A RU98108373 A RU 98108373A
- Authority
- RU
- Russia
- Prior art keywords
- steel
- melt
- oxygen
- aluminum
- consumption
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims 5
- 229910052751 metal Inorganic materials 0.000 claims 5
- 239000002184 metal Substances 0.000 claims 5
- 229910000831 Steel Inorganic materials 0.000 claims 4
- 229910052782 aluminium Inorganic materials 0.000 claims 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 4
- 239000010959 steel Substances 0.000 claims 4
- 239000000126 substance Substances 0.000 claims 4
- 239000000155 melt Substances 0.000 claims 3
- 239000001301 oxygen Substances 0.000 claims 3
- 229910052760 oxygen Inorganic materials 0.000 claims 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 3
- 238000010926 purge Methods 0.000 claims 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims 2
- 238000007664 blowing Methods 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 2
- 239000011261 inert gas Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 230000036284 oxygen consumption Effects 0.000 claims 2
- 229910052786 argon Inorganic materials 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 230000001264 neutralization Effects 0.000 claims 1
Claims (2)
где
t - требуемая температура нагрева стали, oC;
PAl- расход алюминия, вводимого в ковш, кг/т;
C - содержание углерода в стали, % (марка стали);
(0,05-0,06); (3,6-7,7); (20-25); 0,47 - эмпирические коэффициенты,
при этом кислородную продувку ведут с интенсивностью 0,1-0,4 м3(мин•т) при заглублении выходных срезов продувочных сопел фурмы в расплав металла на 0,10-0,6 высоты уровня расплава металла, а нейтральный газ для усреднения по температуре и химическому составу подают с интенсивностью 0,0025-0,0040 м3(мин•т).1. The method of secondary heating of steel, including the introduction of aluminum into the molten metal in the ladle, blowing the melt with oxygen through the submerged tuyere, chemical heating in the melt, and its subsequent averaging over temperature and chemical composition by blowing with an inert gas, characterized in that determine the consumption of input aluminum taking into account the carbon content in the melt while maintaining the specific volume flow rate of oxygen in the range of 0.5-0.75 m 3 / kg of introduced aluminum, and the oxygen consumption for chemical heating of the molten metal is determined according to the following dependency:
Where
t is the required heating temperature of steel, o C;
P Al - consumption of aluminum introduced into the ladle, kg / t;
C - carbon content in steel,% (steel grade);
(0.05-0.06); (3.6-7.7); (20-25); 0.47 - empirical coefficients,
however, oxygen purging is carried out with an intensity of 0.1-0.4 m 3 (min • t) when the output sections of the purge nozzles of the tuyere are buried into the metal melt at 0.10-0.6 of the height of the metal melt, and the neutral gas is averaged over temperature and chemical composition are fed with an intensity of 0.0025-0.0040 m 3 (min • t).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU98108373A RU2125614C1 (en) | 1998-05-06 | 1998-05-06 | Method of ladle heating of steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU98108373A RU2125614C1 (en) | 1998-05-06 | 1998-05-06 | Method of ladle heating of steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2125614C1 RU2125614C1 (en) | 1999-01-27 |
| RU98108373A true RU98108373A (en) | 1999-04-27 |
Family
ID=20205540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU98108373A RU2125614C1 (en) | 1998-05-06 | 1998-05-06 | Method of ladle heating of steel |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2125614C1 (en) |
-
1998
- 1998-05-06 RU RU98108373A patent/RU2125614C1/en not_active IP Right Cessation
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