RU2010100629A - METHOD FOR ELECTRIC SLAG Smelting of Ferroalloys Based on Refractory Metals or Their Oxides - Google Patents
METHOD FOR ELECTRIC SLAG Smelting of Ferroalloys Based on Refractory Metals or Their Oxides Download PDFInfo
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- RU2010100629A RU2010100629A RU2010100629/02A RU2010100629A RU2010100629A RU 2010100629 A RU2010100629 A RU 2010100629A RU 2010100629/02 A RU2010100629/02 A RU 2010100629/02A RU 2010100629 A RU2010100629 A RU 2010100629A RU 2010100629 A RU2010100629 A RU 2010100629A
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Abstract
1. Способ электрошлаковой выплавки ферросплавов на основе тугоплавких металлов или их окислов, включающий переплав тугоплавкого металла или окисла тугоплавкого металла и стальной стружки порциями в шлаковой ванне в водоохлаждаемом кристаллизаторе путем подвода электрического тока в шлак через нерасходуемый электрод, отличающийся тем, что перед подачей в кристаллизатор порции тугоплавкого металла или окисла наводят металлическую ванну на основе порции стальной стружки, а расплавление каждой порции тугоплавкого металла или окисла производят совместно с термитной смесью, подавая ее в кристаллизатор одновременно с тугоплавким металлом или окислом в соотношении (0,2-0,5):1. ! 2. Способ по п.1, отличающийся тем, что в качестве термитной смеси используют смесь порошков алюминия и аммиачной селитры в соотношении (1,5-2,0):1. ! 3. Способ по п.1, отличающийся тем, что в качестве термитной смеси используют смесь порошков алюминия и бертолетовой соли в соотношении (3,0-4,5):1. ! 4. Способ по п.1, отличающийся тем, что в качестве термитной смеси используют смесь порошков алюминия и окисла переплавляемого тугоплавкого металла в соотношении (1,5-2,0):1,2. ! 5. Способ по п.1, отличающийся тем, что тугоплавкие металлы или их окислы подают в кристаллизатор в виде порошков фракцией не более 3 мм. 1. A method of electroslag smelting of ferroalloys based on refractory metals or their oxides, comprising remelting a refractory metal or oxide of a refractory metal and steel shavings in batches in a slag bath in a water-cooled mold by supplying electric current to the slag through a non-consumable electrode, characterized in that before feeding to the mold portions of the refractory metal or oxide induce a metal bath based on the portion of the steel chips, and the melting of each portion of the refractory metal or oxide is plague together with thermite mixture, feeding it into the mold simultaneously with the refractory metal or oxide in a ratio of (0.2-0.5): 1. ! 2. The method according to claim 1, characterized in that the mixture of aluminum and ammonium nitrate powders in a ratio of (1.5-2.0): 1 is used as a thermite mixture. ! 3. The method according to claim 1, characterized in that as a thermite mixture, a mixture of aluminum powders and bertholite salt is used in a ratio of (3.0-4.5): 1. ! 4. The method according to claim 1, characterized in that the mixture of aluminum powders and oxide of the refractory refractory metal in a ratio of (1.5-2.0): 1.2 is used as a thermite mixture. ! 5. The method according to claim 1, characterized in that the refractory metals or their oxides are fed to the crystallizer in the form of powders with a fraction of not more than 3 mm.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2010100629/02A RU2010100629A (en) | 2010-01-11 | 2010-01-11 | METHOD FOR ELECTRIC SLAG Smelting of Ferroalloys Based on Refractory Metals or Their Oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2010100629/02A RU2010100629A (en) | 2010-01-11 | 2010-01-11 | METHOD FOR ELECTRIC SLAG Smelting of Ferroalloys Based on Refractory Metals or Their Oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU2010100629A true RU2010100629A (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2010100629/02A RU2010100629A (en) | 2010-01-11 | 2010-01-11 | METHOD FOR ELECTRIC SLAG Smelting of Ferroalloys Based on Refractory Metals or Their Oxides |
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| RU (1) | RU2010100629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607455A (en) * | 2019-10-30 | 2019-12-24 | 上海电气上重铸锻有限公司 | Chemical composition control method for large stainless steel electroslag remelting steel ingot |
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2010
- 2010-01-11 RU RU2010100629/02A patent/RU2010100629A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607455A (en) * | 2019-10-30 | 2019-12-24 | 上海电气上重铸锻有限公司 | Chemical composition control method for large stainless steel electroslag remelting steel ingot |
| CN110607455B (en) * | 2019-10-30 | 2021-12-10 | 上海电气上重铸锻有限公司 | Chemical composition control method for large stainless steel electroslag remelting steel ingot |
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| FA93 | Acknowledgement of application withdrawn (no request for examination) |
Effective date: 20130114 |