RU2009113959A - METHOD FOR ALLOYING STEELS BY NITROGEN - Google Patents
METHOD FOR ALLOYING STEELS BY NITROGEN Download PDFInfo
- Publication number
- RU2009113959A RU2009113959A RU2009113959/02A RU2009113959A RU2009113959A RU 2009113959 A RU2009113959 A RU 2009113959A RU 2009113959/02 A RU2009113959/02 A RU 2009113959/02A RU 2009113959 A RU2009113959 A RU 2009113959A RU 2009113959 A RU2009113959 A RU 2009113959A
- Authority
- RU
- Russia
- Prior art keywords
- nitrogen
- nitrided
- ferrochrome
- ladle
- amount
- Prior art date
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract 14
- 238000000034 method Methods 0.000 title claims abstract 9
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract 7
- 238000005275 alloying Methods 0.000 title claims abstract 3
- 229910000604 Ferrochrome Inorganic materials 0.000 claims abstract 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract 4
- 239000000956 alloy Substances 0.000 claims abstract 4
- 239000010959 steel Substances 0.000 claims abstract 4
- 238000003723 Smelting Methods 0.000 claims abstract 2
- 229910052786 argon Inorganic materials 0.000 claims abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims abstract 2
- 239000012535 impurity Substances 0.000 claims abstract 2
- 238000002844 melting Methods 0.000 claims abstract 2
- 230000008018 melting Effects 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims abstract 2
- 239000000203 mixture Substances 0.000 claims abstract 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract 2
- 230000003647 oxidation Effects 0.000 claims abstract 2
- 238000007254 oxidation reaction Methods 0.000 claims abstract 2
- 239000001301 oxygen Substances 0.000 claims abstract 2
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 2
- 238000007670 refining Methods 0.000 claims abstract 2
- 238000009628 steelmaking Methods 0.000 claims abstract 2
- 238000012935 Averaging Methods 0.000 claims 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
1. Способ выплавки азотсодержащей стали, включающий расплавление шихты в сталеплавильном агрегате, окисление примесей, рафинирование, раскисление и легирование, в том числе азотом в виде азотированного сплава, отличающийся тем, что в качестве азотированного сплава используют азотированный феррохром с содержанием азота 8-12%, плотностью 4-6,5 г/см3 и с содержанием кислорода не более 0,5%, который вводят в печь за 5-15 мин до выпуска в количестве 0,1-5 кг/т. ! 2. Способ по п.1, отличающийся тем, что азотированный феррохром используется в виде кусков размером 20-99 мм. ! 3. Способ по п.1, отличающийся тем, что производится корректировка состава стали путем дополнительного введения в ковш азотированного феррохрома в количестве 0,1-0,5 кг/т. ! 4. Способ по п.1, отличающийся тем, что осуществляется усреднительная продувка металла в ковше аргоном и/или азотом в течение 3-5 мин с удельным расходом газа 0,5-1 м3/т.1. The method of smelting nitrogen-containing steel, including the melting of the charge in the steelmaking unit, the oxidation of impurities, refining, deoxidation and alloying, including nitrogen in the form of a nitrided alloy, characterized in that nitrided ferrochrome with a nitrogen content of 8-12% is used as a nitrided alloy , with a density of 4-6.5 g / cm3 and with an oxygen content of not more than 0.5%, which is introduced into the furnace 5-15 minutes before release in an amount of 0.1-5 kg / t. ! 2. The method according to claim 1, characterized in that the nitrided ferrochrome is used in the form of pieces of 20-99 mm in size. ! 3. The method according to claim 1, characterized in that the steel composition is adjusted by additionally introducing nitrated ferrochrome into the ladle in an amount of 0.1-0.5 kg / t. ! 4. The method according to claim 1, characterized in that the metal is blown averaged in the ladle with argon and / or nitrogen for 3-5 minutes with a specific gas flow rate of 0.5-1 m3 / t.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2009113959/02A RU2394107C2 (en) | 2009-04-13 | 2009-04-13 | Procedure for alloying steel with nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2009113959/02A RU2394107C2 (en) | 2009-04-13 | 2009-04-13 | Procedure for alloying steel with nitrogen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2009113959A true RU2009113959A (en) | 2010-02-20 |
| RU2394107C2 RU2394107C2 (en) | 2010-07-10 |
Family
ID=42126820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2009113959/02A RU2394107C2 (en) | 2009-04-13 | 2009-04-13 | Procedure for alloying steel with nitrogen |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2394107C2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014142699A1 (en) * | 2013-03-13 | 2014-09-18 | Parshin Vladimir Andreevich | Method for double alloying and nanophase modification of steel by atomic nitrogen |
| RU2665658C1 (en) * | 2017-05-11 | 2018-09-03 | Общество с ограниченной ответственностью "НАУЧНО-ПРОИЗВОДСТВЕННОЕ ПРЕДПРИЯТИЕ ВакЭТО" (ООО НПП ВакЭТО) | Method of iron alloying by nitrogen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1261964A1 (en) * | 1985-03-11 | 1986-10-07 | Институт проблем литья АН УССР | Method of producing nitrogen-containing die steel |
| RU2161205C1 (en) * | 1999-06-01 | 2000-12-27 | Открытое акционерное общество "Кузнецкий металлургический комбинат" | Method of rail steel production |
| RU2266338C2 (en) * | 2004-02-05 | 2005-12-20 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | Method of micro-alloying of steel with nitrogen |
-
2009
- 2009-04-13 RU RU2009113959/02A patent/RU2394107C2/en active
Also Published As
| Publication number | Publication date |
|---|---|
| RU2394107C2 (en) | 2010-07-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC43 | Official registration of the transfer of the exclusive right without contract for inventions |
Effective date: 20210611 |