JPS5770215A - Controlling method for finish temperature of converter operation - Google Patents
Controlling method for finish temperature of converter operationInfo
- Publication number
- JPS5770215A JPS5770215A JP14436480A JP14436480A JPS5770215A JP S5770215 A JPS5770215 A JP S5770215A JP 14436480 A JP14436480 A JP 14436480A JP 14436480 A JP14436480 A JP 14436480A JP S5770215 A JPS5770215 A JP S5770215A
- Authority
- JP
- Japan
- Prior art keywords
- amount
- finish temperature
- converter operation
- temperature rise
- temperature
- 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
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
- C21C5/32—Blowing from above
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
PURPOSE:To improve the adequteness degree of the finish temperature of a converter operation and control the finish temperature at the optimum value by a method wherein a correction term determined by the mixing ratios of molten pig iron is added to a temperature rise model used for a dynamic control of the finish temperature of a converter operation for refining. CONSTITUTION:For the dynamic control of the finish temperature of the converter operation for refining, a temperature rise model is used which represents the temperature rise rate per unit amount of blown oxygen dT/dQ in terms of the factors as follows: dT/dQ=F([C]i, Bi, Fi, Ei, Oi, Ii, Ki,). where i is the heat number, [C] is the carbon content of the steel bath, Q is the amount (Nm<3>) of blown oxygen, B is the blowing pattern, F is the amount of flux charged, E is the contents of other components (Si, Mn, P, etc.), O is the amount of iron ores charged, I is the initial conditions and K is a model factor. To this basis temperature rise model is added the correction term which depends on the amount of undissolved scraps and is determined by the mixing ratios of the molten pig iron. Accordingly, it is made possible to control the finish temperature following up to the change in the mixing ratios of the molten pig iron.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14436480A JPS5770215A (en) | 1980-10-17 | 1980-10-17 | Controlling method for finish temperature of converter operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14436480A JPS5770215A (en) | 1980-10-17 | 1980-10-17 | Controlling method for finish temperature of converter operation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5770215A true JPS5770215A (en) | 1982-04-30 |
Family
ID=15360382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14436480A Pending JPS5770215A (en) | 1980-10-17 | 1980-10-17 | Controlling method for finish temperature of converter operation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5770215A (en) |
-
1980
- 1980-10-17 JP JP14436480A patent/JPS5770215A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1087079A (en) | Improvements in or relating to metallurgical converter control systems and methods | |
JPS5687617A (en) | Steel making method using arc furnace | |
ES8302787A1 (en) | Process for refining high-chromium steels | |
US4113468A (en) | Continuous smelting method | |
JPS5770215A (en) | Controlling method for finish temperature of converter operation | |
CA1237583A (en) | System and method for producing steel in a top-blown vessel | |
JPS62158810A (en) | Method for determining main material charging quantity in converter operation | |
JPS56130420A (en) | Refining method of molten iron and molten steel | |
JPS5521504A (en) | Controlling method for decarburization of molten steel | |
FR2230732A1 (en) | Controlling foaming of slag in steel refining - using values determined from off-gases | |
KR890013198A (en) | Method for manufacturing low chromium-containing molten iron | |
JPS57140810A (en) | Refining method for steel | |
JPS55152113A (en) | Operating method of blast furnace | |
JPS5723016A (en) | Arc furnace steel making method | |
JPS5743923A (en) | Method for preventing rephosphorization | |
JPS6447805A (en) | Production of silicon-containing cast iron | |
JPS55107715A (en) | Blowing method of dephosphorizer to bottom blowing converter | |
JPS5732315A (en) | Method for dephosphorization in basic oxygen converter steel making method | |
Pozhivanov | Oxygen Injection of a Converter Bath With Cyclic Variation in Oxygen Consumption | |
JPS5591908A (en) | Decarburizing method for molten cast iron | |
Didkovskii et al. | The Oxidation of Low Carbon Steel in a Converter and the Possibilities of Controlling it by Changing the Blowing Parameters | |
JPS57145920A (en) | Batch type continuous refining method of molten pig iron | |
JPS5445611A (en) | Treating molten metal | |
GB1459956A (en) | Method of controlling temperature in q-bop steel making process | |
Egger et al. | Desiliconization and Dephosphorization of Molten Pig Iron During Desulfurization and Its Effect on the Material and Heat Balance of the LD Process |