RU2006144614A - METHOD FOR PRODUCING HIGH-STRENGTH IRON - Google Patents
METHOD FOR PRODUCING HIGH-STRENGTH IRON Download PDFInfo
- Publication number
- RU2006144614A RU2006144614A RU2006144614/02A RU2006144614A RU2006144614A RU 2006144614 A RU2006144614 A RU 2006144614A RU 2006144614/02 A RU2006144614/02 A RU 2006144614/02A RU 2006144614 A RU2006144614 A RU 2006144614A RU 2006144614 A RU2006144614 A RU 2006144614A
- Authority
- RU
- Russia
- Prior art keywords
- modification
- primary
- iron
- ligature
- metal
- Prior art date
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Classifications
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- 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
Abstract
1. Способ получения высокопрочного чугуна из исходного чугуна с содержанием серы выше 0,04%, включающий расплавление шихты в плавильном агрегате, доведение температуры расплава до 1420÷1460°С, первичное модифицирование его лигатурой с содержанием редкоземельных металлов и кремния и вторичное модифицирование, отличающийся тем, что лигатура при первичном модифицировании равномерно подается на струю металла через специально сконструированный дозатор при сливе металла в раздаточный ковш.2. Способ по п.1, отличающийся тем, что предварительный оценочный расчет количества первичной лигатуры производится исходя из содержания серы в исходном чугуне.3. Способ по п.1 или 2, отличающийся тем, что при получении вермикулярного графита на изломе контрольного образца после первичного модифицирования при вторичном модифицировании вместе с вторичной лигатурой в расплав вносится дополнительно первичная лигатура в количестве до 0,5% от массы жидкого чугуна.4. Способ по п.1 или 2, отличающийся тем, что после первичного и вторичного модифицирования металл обязательно выдерживается 4÷6 и 0,5÷1,0 мин соответственно для всплытия шлака, который снимается с поверхности жидкого чугуна.1. A method for producing high-strength cast iron from initial cast iron with a sulfur content above 0.04%, including melting the charge in a smelting unit, bringing the melt temperature to 1420 ÷ 1460 ° C, primary modification of it with an alloy containing rare earth metals and silicon and secondary modification, which is different the fact that the ligature during the initial modification is uniformly fed to the metal stream through a specially designed dispenser when pouring the metal into the distributing ladle. 2. The method according to claim 1, characterized in that the preliminary estimated calculation of the amount of the primary master alloy is made based on the sulfur content in the original pig iron. The method according to claim 1 or 2, characterized in that when receiving vermicular graphite at the fracture of the control sample after primary modification during secondary modification, together with the secondary master alloy, an additional primary master alloy is added to the melt in an amount of up to 0.5% of the weight of liquid iron. The method according to claim 1 or 2, characterized in that after the primary and secondary modification, the metal must be kept for 4 ÷ 6 and 0.5 ÷ 1.0 minutes, respectively, to float up the slag, which is removed from the surface of the liquid iron.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2006144614A RU2341562C2 (en) | 2006-12-15 | 2006-12-15 | Method of high-duty cast iron receiving |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2006144614A RU2341562C2 (en) | 2006-12-15 | 2006-12-15 | Method of high-duty cast iron receiving |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2006144614A true RU2006144614A (en) | 2008-07-20 |
RU2341562C2 RU2341562C2 (en) | 2008-12-20 |
Family
ID=40375343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2006144614A RU2341562C2 (en) | 2006-12-15 | 2006-12-15 | Method of high-duty cast iron receiving |
Country Status (1)
Country | Link |
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RU (1) | RU2341562C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2497954C1 (en) * | 2012-03-05 | 2013-11-10 | Открытое акционерное общество "АВТОВАЗ" | METHOD FOR OBTAINING HIGH-STRENGTH CAST-IRON WITH VERMICULAR GRAPHITE BY INTRA-MOULD MODIFICATION USING ALLOY COMBINATIONS OF Fe-Si-REM SYSTEM |
RU2586730C1 (en) * | 2015-03-25 | 2016-06-10 | Руслан Николаевич Зенкин | Method of producing high-strength cast iron |
-
2006
- 2006-12-15 RU RU2006144614A patent/RU2341562C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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RU2341562C2 (en) | 2008-12-20 |
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