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RU99103721A - METHOD FOR Smelting RAIL STEEL OF HIGH PURITY BY NON-METAL INCLUSIONS IN THE ELECTRIC MELTING ARC - Google Patents

METHOD FOR Smelting RAIL STEEL OF HIGH PURITY BY NON-METAL INCLUSIONS IN THE ELECTRIC MELTING ARC

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Publication number
RU99103721A
RU99103721A RU99103721/02A RU99103721A RU99103721A RU 99103721 A RU99103721 A RU 99103721A RU 99103721/02 A RU99103721/02 A RU 99103721/02A RU 99103721 A RU99103721 A RU 99103721A RU 99103721 A RU99103721 A RU 99103721A
Authority
RU
Russia
Prior art keywords
steel
amount
high purity
furnace
rail steel
Prior art date
Application number
RU99103721/02A
Other languages
Russian (ru)
Other versions
RU2198228C2 (en
Inventor
А.И. Катунин
В.Ф. Царев
Н.А. Козырев
М.В. Обшаров
А.Л. Никулина
А.В. Шуклин
Original Assignee
Открытое акционерное общество "Кузнецкий металлургический комбинат"
Filing date
Publication date
Application filed by Открытое акционерное общество "Кузнецкий металлургический комбинат" filed Critical Открытое акционерное общество "Кузнецкий металлургический комбинат"
Priority to RU99103721/02A priority Critical patent/RU2198228C2/en
Priority claimed from RU99103721/02A external-priority patent/RU2198228C2/en
Publication of RU99103721A publication Critical patent/RU99103721A/en
Application granted granted Critical
Publication of RU2198228C2 publication Critical patent/RU2198228C2/en

Links

Claims (1)

Способ выплавки рельсовой стали повышенной чистоты по неметаллическим включениям в дуговой электросталеплавильной печи, включающий завалку шихты, плавление, окислительный и восстановительный периоды, выпуск стали из печи, отличающийся тем, что в завалку дополнительно вводится железная руда в количестве 0,5-1,0 кг на тонну метадлошихты, после скачивания окислительного шлака в конце окислительного периода в печь присаживается смесь, состоящая из плавикового шпата и извести в соотношении (0,1-0,5):(1,5-2,5) в количестве 1,5-3,5% от массы металла, в восстановительный период проводится дополнительное раскисление шлака смесью порошка кокса, дробленого ферросилиция, гранулированного алюминия в количестве по 0,80-1,20 кг на тонну стали каждого, а во время выпуска из печи в ковш присаживается смесь, состоящая из извести, плавикового шпата, силикокальция и чушкового алюминия в соотношении (1,2-1,5): (0,3-0,4):(0,65-0,85):(0,010-0,020) при расходе смеси 14-20 кг на тонну стали.The method of smelting high-purity rail steel by non-metallic inclusions in an electric arc furnace, including charging the charge, melting, oxidation and reduction periods, the release of steel from the furnace, characterized in that the iron ore is additionally introduced into the filling in an amount of 0.5-1.0 kg per tonne of meta-charge, after downloading the oxidizing slag at the end of the oxidation period, a mixture consisting of fluorspar and lime in the ratio (0.1-0.5) :( 1.5-2.5) in the amount of 1.5- 3.5% by weight of metal, in re During the recovery period, additional slag deoxidation is carried out with a mixture of coke powder, crushed ferrosilicon, granular aluminum in an amount of 0.80-1.20 kg per ton of steel each, and during discharge from the furnace, a mixture consisting of lime, fluorspar, silicocalc and pig aluminum in the ratio (1.2-1.5): (0.3-0.4) :( 0.65-0.85) :( 0.010-0.020) with a mixture flow rate of 14-20 kg per ton of steel .
RU99103721/02A 1999-02-22 1999-02-22 Method of melting rail steel of high purity relative to nonmetallic inclusions in electric arc steel melting furnace RU2198228C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU99103721/02A RU2198228C2 (en) 1999-02-22 1999-02-22 Method of melting rail steel of high purity relative to nonmetallic inclusions in electric arc steel melting furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU99103721/02A RU2198228C2 (en) 1999-02-22 1999-02-22 Method of melting rail steel of high purity relative to nonmetallic inclusions in electric arc steel melting furnace

Publications (2)

Publication Number Publication Date
RU99103721A true RU99103721A (en) 2000-12-27
RU2198228C2 RU2198228C2 (en) 2003-02-10

Family

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Family Applications (1)

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RU99103721/02A RU2198228C2 (en) 1999-02-22 1999-02-22 Method of melting rail steel of high purity relative to nonmetallic inclusions in electric arc steel melting furnace

Country Status (1)

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RU (1) RU2198228C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2235790C1 (en) * 2003-02-26 2004-09-10 ООО "Рельсы Кузнецкого металлургического комбината" Rail steel melting method
RU2312902C1 (en) * 2006-02-10 2007-12-20 Открытое акционерное общество "Новокузнецкий металлургический комбинат" Method of refining rail steel in furnace-ladle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1224340B (en) * 1962-09-04 1966-09-08 Boehler & Co Ag Geb Process for the production of practically slag-free steels in a basic electric arc furnace or in a basic induction furnace
SU502958A1 (en) * 1972-09-15 1976-02-15 Уральский научно-исследовательский институт черных металлов Method for the production of steel for railway rails
CS233609B1 (en) * 1982-09-14 1985-03-14 Karel Balcar A method for treating recoverable waste of non-alloyed steels with a content of 0.08 to 0.6% by weight. carbon
US4586956A (en) * 1985-07-17 1986-05-06 Labate M D Method and agents for producing clean steel
RU2038433C1 (en) * 1991-07-03 1995-06-27 Конструкторско-технологический институт монокристаллов СО РАН Method for growing of single crystals of chrysoberyl activated with ions of trivalent titanium
RU2041961C1 (en) * 1994-03-30 1995-08-20 Товарищество с ограниченной ответственностью компания "Металл" Method for steel making
RU2113504C1 (en) * 1996-08-29 1998-06-20 Акционерное общество "Кузнецкий металлургический комбинат" Method for production of rail steel in electric furnaces

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