GB1087053A - Process for measuring the value of carbon content of a steel bath in an oxygen top-blowing converter - Google Patents
Process for measuring the value of carbon content of a steel bath in an oxygen top-blowing converterInfo
- Publication number
- GB1087053A GB1087053A GB39206/64A GB3920664A GB1087053A GB 1087053 A GB1087053 A GB 1087053A GB 39206/64 A GB39206/64 A GB 39206/64A GB 3920664 A GB3920664 A GB 3920664A GB 1087053 A GB1087053 A GB 1087053A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbon content
- steel
- decarburization
- decarburizing
- calculated
- 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
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/202—Constituents thereof
- G01N33/2022—Non-metallic constituents
- G01N33/2025—Gaseous constituents
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/205—Metals in liquid state, e.g. molten metals
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
<PICT:1087053/C6-C7/1> In a process for tapping steel from an oxygen top-blowing converter at a predetermined carbon content involving the use of predetermined standard values of carbon content to compensate for errors in continual carbon content measurement, the flowrate of waste gas issuing from the converter in Nm3/hr [Fi], and the % volume of carbon monoxide [(CO)i] and carbon dioxide [(CO2)i] in the waste gas are continually measured, the decarburization velocity - dc/dt is calculated from the formula <FORM:1087053/C6-C7/1> , the decarburizing acceleration is obtained by differentiating - dc/dt , the times of peculiar change points in the decarburizing acceleration are noted, the carbon content of the steel at the time of said changes is calculated by double integration of the decarburizing acceleration, the correct amount of decarburization (D Ci) is calculated from the formula D Ci' = S Co-(C)% x weight of molten steel, where S Co is the total carbon content of the charged material iron and (C)% is the predetermined standard value of carbon content of the steel bath corresponding to the time the above-mentioned peculiar change is detected, the amount of decarburization as D Ci is calculated by integrating the decarburizing velocity, D Ci is amended by the said correct amount of decarburization D Ci' and the steel is tapped at the exact time the carbon content of the steel reaches the predetermined value.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5139463 | 1963-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1087053A true GB1087053A (en) | 1967-10-11 |
Family
ID=12885705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB39206/64A Expired GB1087053A (en) | 1963-09-26 | 1964-09-25 | Process for measuring the value of carbon content of a steel bath in an oxygen top-blowing converter |
Country Status (5)
Country | Link |
---|---|
US (1) | US3329495A (en) |
AT (1) | AT278881B (en) |
BE (1) | BE653544A (en) |
DE (1) | DE1433701B2 (en) |
GB (1) | GB1087053A (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1402856A (en) * | 1963-12-03 | 1965-06-18 | Siderurgie Fse Inst Rech | Method and device for monitoring oxidation reactions during refining of a metal bath |
US3475599A (en) * | 1965-03-30 | 1969-10-28 | Leeds & Northrup Co | Process measurement system for basic oxygen refining of steel |
US3485619A (en) * | 1965-10-04 | 1969-12-23 | Beteiligungs & Patentverw Gmbh | Method of automatic control and adjustment of oxygen blowing processes |
US3619174A (en) * | 1965-11-27 | 1971-11-09 | Sumitomo Metal Ind | Method for controlling the carbon content in and/or the temperature of the steel |
US3520657A (en) * | 1965-12-27 | 1970-07-14 | Dravo Corp | Method and apparatus for the analysis of off-gases in a refining process |
US3528800A (en) * | 1966-02-14 | 1970-09-15 | Leeds & Northrup Co | Optimized blowing control for basic oxygen furnaces |
US3640119A (en) * | 1966-02-14 | 1972-02-08 | Leeds & Northrup Co | Carbon content measurement in a basic oxygen furnace |
US3450867A (en) * | 1966-03-14 | 1969-06-17 | Leeds & Northrup Co | Estimated tap temperature calculator for basic oxygen furnace |
LU50939A1 (en) * | 1966-04-20 | 1966-10-20 | ||
US3432288A (en) * | 1966-06-29 | 1969-03-11 | Allegheny Ludlum Steel | Process control of top-blown oxygen converter |
US3510262A (en) * | 1966-09-16 | 1970-05-05 | United States Steel Corp | Carbon analyzing system |
US3489518A (en) * | 1966-11-02 | 1970-01-13 | Koppers Co Inc | Carbon determination method and apparatus |
US3540879A (en) * | 1967-06-27 | 1970-11-17 | Westinghouse Electric Corp | Method for controlling phosphorus removal in a basic oxygen furnace |
US3720404A (en) * | 1967-06-27 | 1973-03-13 | Westinghouse Electric Corp | System for controlling carbon removal in a basic oxygen furnace |
US3500029A (en) * | 1967-08-17 | 1970-03-10 | Leeds & Northrup Co | Charge computer for basic oxygen furnace |
US3534143A (en) * | 1968-10-25 | 1970-10-13 | Westinghouse Electric Corp | Computer control of metal treatment furnace operation |
US3653650A (en) * | 1968-12-27 | 1972-04-04 | Yawata Iron & Steel Co | Method of controlling the exhaust gas flow volume in an oxygen top-blowing converter |
US3607230A (en) * | 1969-01-21 | 1971-09-21 | Koppers Co Inc | Process for controlling the carbon content of a molten metal bath |
US3816720A (en) * | 1971-11-01 | 1974-06-11 | Union Carbide Corp | Process for the decarburization of molten metal |
US3773497A (en) * | 1972-03-02 | 1973-11-20 | Steel Corp | Steelmaking |
US3779744A (en) * | 1972-04-05 | 1973-12-18 | Westinghouse Electric Corp | Modification and improvement to dynamic bof control |
US4073619A (en) * | 1974-10-28 | 1978-02-14 | British Steel Corporation | Sampling gas for analysis |
SU813216A1 (en) * | 1977-06-13 | 1981-03-15 | Ордена Ленина Институт Кибернетикиан Украинской Ccp | Device for measuring carbon concentration in liquid metal |
SU752162A1 (en) * | 1977-06-13 | 1980-07-30 | Ордена Ленина Институт Кибернетики Ан Украинской Сср | Device for monitoring the concentration of carbon in molten metal |
SE428400B (en) * | 1977-06-28 | 1983-06-27 | Inst Kib Akademii Nauk Uk Ssr | SET FROM PSENSE EFFECTS SEPARATE SEPARATE THERMAL PHASE CONVERSION EFFECTS ON COOLING OF A METAL OR METAL ALLOY, AND DEVICE FOR IMPLEMENTATION OF THE SET |
JPS5442323A (en) * | 1977-09-10 | 1979-04-04 | Nisshin Steel Co Ltd | Control procedure of steel making process using mass spectormeter |
CN113009103A (en) * | 2019-12-19 | 2021-06-22 | 上海梅山钢铁股份有限公司 | On-line calculation method for carbon content of converter mouth |
CN113076505B (en) * | 2020-01-05 | 2024-06-04 | 上海梅山钢铁股份有限公司 | Converter molten steel decarburization rate calculation method |
CN113106188B (en) * | 2021-04-09 | 2022-07-01 | 福建三宝钢铁有限公司 | Preparation method of HRB500E niobium-containing titanium alloy deformed steel bar |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2595792A (en) * | 1950-05-26 | 1952-05-06 | Jordan James Fernando | Method of observing and controlling the process of a continuous bessemer process |
US3218842A (en) * | 1963-04-30 | 1965-11-23 | United States Steel Corp | Apparatus for analyzing cement kiln exit gases |
-
1964
- 1964-09-22 US US398337A patent/US3329495A/en not_active Expired - Lifetime
- 1964-09-24 AT AT816764A patent/AT278881B/en active
- 1964-09-25 BE BE653544D patent/BE653544A/xx unknown
- 1964-09-25 DE DE19641433701 patent/DE1433701B2/en not_active Withdrawn
- 1964-09-25 GB GB39206/64A patent/GB1087053A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE653544A (en) | 1965-01-18 |
US3329495A (en) | 1967-07-04 |
AT278881B (en) | 1970-02-10 |
DE1433701A1 (en) | 1968-11-28 |
DE1433701B2 (en) | 1971-02-25 |
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