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WO1991009143A1 - Procede de fusion d'acier d'usage general - Google Patents

Procede de fusion d'acier d'usage general Download PDF

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Publication number
WO1991009143A1
WO1991009143A1 PCT/SU1989/000308 SU8900308W WO9109143A1 WO 1991009143 A1 WO1991009143 A1 WO 1991009143A1 SU 8900308 W SU8900308 W SU 8900308W WO 9109143 A1 WO9109143 A1 WO 9109143A1
Authority
WO
WIPO (PCT)
Prior art keywords
chτο
steel
gas
maτeρialοv
aluminum
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.)
Ceased
Application number
PCT/SU1989/000308
Other languages
English (en)
Russian (ru)
Inventor
Anatoly Yakovlevich Nakonechny
Vitaly Jurievich Tabunschikov
Alexandr Jurievich Zaitsev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Donetsky Politekhnichesky Institut
Original Assignee
Donetsky Politekhnichesky Institut
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Donetsky Politekhnichesky Institut filed Critical Donetsky Politekhnichesky Institut
Priority to PCT/SU1989/000308 priority Critical patent/WO1991009143A1/fr
Publication of WO1991009143A1 publication Critical patent/WO1991009143A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C21C5/005—Manufacture of stainless steel
    • 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
    • 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
    • C21C5/35—Blowing from above and through the bath
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Definitions

  • the mass steel for its own part may contain, by weight #: extreme to 0.6 5 aluminum to 0.08 and other elements.
  • the invention may have been used in conjunction with an inverted steel mass supply in an emergency, used.
  • the most effective invention may be used in the case of manganese-containing steel.
  • the quality of the user is the quality of the user.
  • This method includes acid refining and bottom loading, oxidizing slag pumping, and 5 melting waste products Alloying elements ** enter the volume of the metal by removing them from the newly formed slag by supplying the storage medium to the mains and to remove the masses.
  • a well-known method does not allow to produce steel of high quality and to achieve high degrees of extraction of the alloying element.
  • ch ⁇ is ⁇ lz ⁇ vanie in ⁇ aches ⁇ ve v ⁇ ss ⁇ a n ⁇ vi ⁇ elya ⁇ emniya s ⁇ s ⁇ bs ⁇ vue ⁇ ⁇ b ⁇ az ⁇ vaniyu in shla ⁇ v ⁇ m ⁇ as ⁇ - lava ⁇ udn ⁇ v ⁇ ss ⁇ an ⁇ vimy ⁇ sili ⁇ a ⁇ v ma ⁇ gantsa form ⁇ • ⁇ • w-z ⁇ ⁇ ⁇ , ⁇ a ⁇ ⁇ a ⁇ dnim of ⁇ du ⁇ v ⁇ ea ⁇ tsii v ⁇ ss ⁇ a- n ⁇ vleniya ma ⁇ gantsa yavlyae ⁇ sya ⁇ emnezem.
  • the method for the smelting of manganese-containing steels ( ⁇ , ⁇ , 98136) is made possible by the introduction of alloying elements in the form of low-solids-containing manganese 0 E ⁇ s ⁇ s ⁇ b v ⁇ lyuchae ⁇ vy ⁇ lav ⁇ u s ⁇ ali in ⁇ nve ⁇ e ⁇ e, ⁇ - zv ⁇ lyayuschem ⁇ susches ⁇ vlya ⁇ ⁇ mbini ⁇ vannuyu ⁇ duv ⁇ u and za ⁇ lyucha- e ⁇ sya in ⁇ m, ch ⁇ in ⁇ nve ⁇ e ⁇ ⁇ dayu ⁇ ⁇ sled ⁇ va ⁇ eln ⁇ zhid ⁇ y iron, shla ⁇ b ⁇ azuyuschie ma ⁇ e ⁇ ialy, ⁇ duvayu ⁇ ⁇ as ⁇ lav ⁇ isl ⁇ - ⁇ d ⁇ m, ud
  • a well-known method implements delivery in the form of a slag for large quantities of lime, which results in a large amount of free goods. This results in a significant increase in the amount of slag in the converter and a decrease in the concentration of manganese oxides in the slag, as well as an deteriorating heat content.
  • submission of lime extends the process of the homogenization of slag melt.
  • ⁇ ⁇ ⁇ dyaschy in s ⁇ s ⁇ av gaz ⁇ v ⁇ y mixture yavlya- ⁇ i ⁇ dny gas e ⁇ sya d ⁇ lni ⁇ elnym is ⁇ chni ⁇ m B ⁇ ss ⁇ an ⁇ vleniya vsleds ⁇ vie ⁇ g ⁇ , ch ⁇ ⁇ n ⁇ azlagae ⁇ sya on u ⁇ le ⁇ d and v ⁇ d ⁇ d, ch ⁇ in sv ⁇ yu - 8 - in the end, it ensures the creation of a ventilating atmosphere over slag melt, as well as a solid storage tank.
  • the products are located in the case of lying one. gas - water and waste, which do not produce non-metallic inclusions. ⁇ In its turn, lowering the content of acid in the alloy in the event of a more favorable treatment of the recovery.
  • 35 part of the alloy which has a temperature of less than about 5 grams, increased the tempera- ture of the exhausted steel rather than slightly, since it does not increase the increase in extraction - 9 -
  • a significant increase in the temperature of the unit also results in a reduction in the incidence of minor incidents as a result of 5 increased wear ⁇
  • the proposed technology provides an increase in the extraction of lightweight elements and a decrease in the content of non-metallic inclusions.
  • the best option of carrying out the invention by the proposed method can be delivered to steel, destined to be sold in bulk, by weight. : carbon 0.05 - 1, 00. manganese 0.25 - 2, 50 iron, other 5, other than steel, the steel of mass appointment in its own right can contain, weight ⁇ : the last to 0.6 aluminum to 0.08
  • the method of smelting is mass experience with the use of oxide materials containing alloying elements, which are carried out in the following way.
  • the consumable uses aluminum and aluminum materials, which are removed from the car- USE OF A HOUSEHOLD AND ALUMINUM-CONTAINING MATERIALS IN THE CONDITION OF SELECTED FROM A CONNECTING MATERIAL OF ALUMINUM
  • the optimal thermal mode is based on the use of foreigners with the use of good thermal effects.
  • the bottom melting mixture is a mixture of neutral and natural gas.
  • P ⁇ i is ⁇ lyuchenii ⁇ duv ⁇ i ⁇ isl ⁇ d ⁇ m ⁇ sle vv ⁇ da ⁇ sid- ny ⁇ ma ⁇ e ⁇ ial ⁇ v udinyae ⁇ sya ts ⁇ tsess ⁇ lavleniya and g ⁇ m ⁇ genizatsii5 shla ⁇ v ⁇ g ⁇ ⁇ as ⁇ lava, snizhae ⁇ sya eg ⁇ ⁇ e ⁇ shchn ⁇ s ⁇ , ch ⁇ zade ⁇ zhi- vae ⁇ nachal ⁇ ⁇ ea ⁇ tsy v ⁇ ss ⁇ an ⁇ vleniya and snizhae ⁇ s ⁇ e ⁇ en of extracting the legi ⁇ u ⁇ schi ⁇ elemen ⁇ v.
  • the alloy After delivery to the boiler, liquid cast iron and slag-forming materials, the alloy is of important importance for the souring - 17 - an acid of 940 rpm / min for 8 minutes and the oxidizing slag was removed. After this, they introduced an oxide of manganese-containing material with a yield of 14.0 kg / t (3500 kg) and allowed them to take a little less than 8 minutes.
  • the ratio of carbon to aluminum was 1: 1.
  • Ready steel was poured into bars weighing 12.5 tons, they were poured onto sheets with a thickness of 10–20 mm and conducted metal surveys.
  • the method of manufacture became mass-purpose, containing manganese, was disintegrated in the 250-th part of the country, which was reimbursing the I.
  • EXAMPLE 7 The method of production of steel products, containing manganese, was carried out in the 250-year invasion of the Kyrgyz Republic.
  • C is 0.11; 31 - 0.24; ⁇ - 0.57; 3 - 0.010; ⁇ - 0.007;
  • the method of smelting of manganese-containing steel was realized in the 250th part of the turn, which caused the existence of the concomitant disaster, which was driven out of the wake of the war.
  • the intentional use of the invention may be used in conjunction with an inbuilt appliance.
  • the most effective present invention can be used in case of manganese-containing steel with manganese content up to 2.5 wt.%.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Le procédé de l'invention consiste, pendant la fusion de l'acier, à introduire de l'oxygène en une quantité permettant l'obtention d'un bain de fusion ayant une température de 5 à 50 degrés supérieure à celle de l'acier à fondre. On utilise, en tant qu'agent de réduction, des matières contenant du carbone et de l'aluminium, en quantités correspondant au rapport entre le carbone de la matière contenant du carbone et l'aluminium de la matière contenant de l'aluminium, égal à 1:(1-3) respectivement, et l'on insuffle un mélange d'un gaz inerte et d'un gaz naturel dans le bain de fusion, par le fond. On peut utiliser l'invention, notamment, dans la production d'acier au manganèse.
PCT/SU1989/000308 1989-12-08 1989-12-08 Procede de fusion d'acier d'usage general Ceased WO1991009143A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SU1989/000308 WO1991009143A1 (fr) 1989-12-08 1989-12-08 Procede de fusion d'acier d'usage general

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1989/000308 WO1991009143A1 (fr) 1989-12-08 1989-12-08 Procede de fusion d'acier d'usage general

Publications (1)

Publication Number Publication Date
WO1991009143A1 true WO1991009143A1 (fr) 1991-06-27

Family

ID=21617603

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SU1989/000308 Ceased WO1991009143A1 (fr) 1989-12-08 1989-12-08 Procede de fusion d'acier d'usage general

Country Status (1)

Country Link
WO (1) WO1991009143A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1025229A (en) * 1962-07-06 1966-04-06 Gussstahlwerk Witten Ag Process for the production of alloy steels
GB1148829A (en) * 1967-04-26 1969-04-16 Stora Kopparbergs Bergslags Ab Method of refining a carbonaceous metal bath
SU910779A1 (ru) * 1980-01-28 1982-03-07 Донецкий политехнический институт Способ выплавки стали в конвертере
SU981376A1 (ru) * 1981-01-05 1982-12-15 Донецкий Ордена Трудового Красного Знамени Политехнический Институт Способ выплавки марганецсодержащих сталей
SU1013489A1 (ru) * 1981-03-18 1983-04-23 Донецкий Ордена Трудового Красного Знамени Политехнический Институт Способ выплавки стали в конвертере
EP0090452A1 (fr) * 1982-03-26 1983-10-05 Hoogovens Groep B.V. Procédé pour produire de l'acier dans un convertisseur à partir de fonte et de ferraille

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1025229A (en) * 1962-07-06 1966-04-06 Gussstahlwerk Witten Ag Process for the production of alloy steels
GB1148829A (en) * 1967-04-26 1969-04-16 Stora Kopparbergs Bergslags Ab Method of refining a carbonaceous metal bath
SU910779A1 (ru) * 1980-01-28 1982-03-07 Донецкий политехнический институт Способ выплавки стали в конвертере
SU981376A1 (ru) * 1981-01-05 1982-12-15 Донецкий Ордена Трудового Красного Знамени Политехнический Институт Способ выплавки марганецсодержащих сталей
SU1013489A1 (ru) * 1981-03-18 1983-04-23 Донецкий Ордена Трудового Красного Знамени Политехнический Институт Способ выплавки стали в конвертере
EP0090452A1 (fr) * 1982-03-26 1983-10-05 Hoogovens Groep B.V. Procédé pour produire de l'acier dans un convertisseur à partir de fonte et de ferraille

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