SU258344A1 - METHOD OF REFINING SILICON ALLOYS - Google Patents
METHOD OF REFINING SILICON ALLOYSInfo
- Publication number
- SU258344A1 SU258344A1 SU1283511A SU1283511A SU258344A1 SU 258344 A1 SU258344 A1 SU 258344A1 SU 1283511 A SU1283511 A SU 1283511A SU 1283511 A SU1283511 A SU 1283511A SU 258344 A1 SU258344 A1 SU 258344A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- aluminum
- nickel
- alloys
- silicon alloys
- refining silicon
- Prior art date
Links
- 238000007670 refining Methods 0.000 title description 4
- 229910000676 Si alloy Inorganic materials 0.000 title description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 13
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 6
- -1 aluminum-nickel Chemical compound 0.000 description 3
- 229910000765 intermetallic Inorganic materials 0.000 description 3
- 229910001151 AlNi Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910005347 FeSi Inorganic materials 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001590 oxidative Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001603 reducing Effects 0.000 description 1
- 239000003638 reducing agent Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Description
Известен способ рафинировани кремнистых сплавов, заключающийс в обработке их окислительными порошками, вдуваемыми в металл.There is a known method of refining siliceous alloys, which consists in processing them with oxidizing powders blown into the metal.
Отличием описываемого способа от известного вл етс введение в металл никельсодержащих добавок в количестве, достаточном дл св зывани алюмини в интерметаллические соединени типа алюминий - никель.The difference between the described method and the known method is the introduction into the metal of nickel-containing additives in an amount sufficient to bind aluminum into intermetallic compounds of the aluminum-nickel type.
Цель изобретени - увеличить степень удалени алюмини из сплавов.The purpose of the invention is to increase the degree of removal of aluminum from alloys.
Дл этого предлагаетс в шихту печей, в которых выплавл ют кремнистые сплавы, или в ковш добавл ть небольшое количество никельсодержаш,его сырь (стальна стружка с никелем, руда, концентраты, шлаки и др.). Если никель беретс в окисной форме, требуетс небольшое количество коксика на восстановление. Никель образует прочное интерметаллическое соединение с алюминием AlNi с т. пл. 1627°С, имеющее больший удельный вес, чем FeSi.For this, it is proposed to mix furnaces in which silicon alloys are melted, or to add a small amount of nickel-containing material and its raw materials (steel chips with nickel, ore, concentrates, slags, etc.) to the ladle. If nickel is taken in an oxide form, a small amount of coxy is required for reduction. Nickel forms a strong intermetallic compound with aluminum AlNi with m. Pl. 1627 ° C, having a larger specific gravity than FeSi.
После выпуска металла из печи, в период его выдержки, AlNi осаждаетс на дно ковша,After the metal is released from the furnace, during its holding, AlNi is deposited on the bottom of the ladle,
благодар чему достигаетс глубока очистка сплава от алюмини . После разливки сплава на поддоны или в изложницы разливочной машины нетрудно отобрать большую часть полученного металла, содержащего низкий процент (до 0,1) алюмини . Оставшуюс часть ферросилици обогащенную никелем и алюминием, можно использовать в качестве раскислител дл широкой гаммы марок стали или в качестве восстановител в силикотермических способах получени металлов и сплавов.due to which deep cleaning of the alloy from aluminum is achieved. After casting the alloy into pallets or into molds of the casting machine, it is easy to select most of the obtained metal containing a low percentage (up to 0.1) of aluminum. The rest of the ferrosilicon is enriched with nickel and aluminum, can be used as a deoxidizing agent for a wide range of steel grades or as a reducing agent in silicothermic processes for the production of metals and alloys.
15Пред мет изобретени 15Pred of the invention
Способ рафинировани кремнистых сплавов, заключающийс в ведении в металл рафинирующих добавок, отличающийс тем, что, 20 с целью удалени из сплавов алюмини , в металл ввод т никельсодержащие материалы в количестве, достаточном дл св зывани алюмини в интерметаллические соединени системы алюминий - никель.A method of refining siliceous alloys, consisting in maintaining refining additives into metal, characterized in that, 20 in order to remove aluminum from alloys, nickel-containing materials are introduced into the metal in a quantity sufficient to bind aluminum into intermetallic compounds of the aluminum-nickel system.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU258344A1 true SU258344A1 (en) |
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