SU872584A1 - Device for liquid metal refining with gases - Google Patents
Device for liquid metal refining with gases Download PDFInfo
- Publication number
- SU872584A1 SU872584A1 SU802879366A SU2879366A SU872584A1 SU 872584 A1 SU872584 A1 SU 872584A1 SU 802879366 A SU802879366 A SU 802879366A SU 2879366 A SU2879366 A SU 2879366A SU 872584 A1 SU872584 A1 SU 872584A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- gases
- liquid metal
- metal refining
- melt
- sodium
- Prior art date
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Description
(54) УСТРОЙСТВО ДЛЯ РАФШИРОВАНИЯ ЖИДКОГО ЙФТАЛЛАI(54) DEVICE FOR RAUSHING OF LIQUID YFTALA
Изобретение относитс к металлургии цветных металлов и сплавов, в частности к рафинированию расплавленных металлов от металлических примесей и может быть использовано при рафинировании алюмини от натри .The invention relates to the metallurgy of non-ferrous metals and alloys, in particular to the refining of molten metals from metallic impurities and can be used in the refining of aluminum from sodium.
Установлено отрицательное вли ние натри на пластичрость при гор чей прокатке слитков группы А1-Мд. НаприMepj при гор чей обработке (прокатке) сплавы с содержанием 5% Мд склонгал к трещинообразованию, если в них содержание натри превышает 0,001 %. При обычных производственных услови х загр знени натрием очень трудно избежать , его содержание в электролитическом алюминии обычно составл ет 0.004-0.Ов7%.The negative effect of sodium on the plasticity was established during the hot rolling of A1-MD group ingots. For example, during the hot treatment (rolling), alloys with a content of 5% Md tend to crack, if their sodium content exceeds 0.001%. Under normal operating conditions, sodium contamination is very difficult to avoid, its content in electrolytic aluminum is usually 0.004-0. ОВ7%.
Существуют следующие способы снижени содержани натри в алюминии: продувка расплавленного металла хлором или газообразными хлористыми соединени ми; селективное окисление натри на поверхности расплавленцьщ.The following methods exist for reducing the sodium content of aluminum: purging the molten metal with chlorine or gaseous chloride compounds; selective oxidation of sodium on the surface of the melt.
J ; -, .J; -,
. ГАЗАМИ(. GASES (
металлов при наличии турбулентности создаваемой струей азота через расплав ; рафинирование алюмини и его сплавов, при котором расплав покрывают флюсом, не содержащим щелочных металлов и через расплав при 850-960®С продувают воздух} продувка расплава парами воды, наход щейс в газообразном состо нии, совместно с газом-носителем , например, азотом; продувка расплава газами, полученными продуктами сухой перегонки материалов древесного происхождени , которые помещают в закрытую газопроницаемую емкость под зеркало металла.metals in the presence of turbulence created by a stream of nitrogen through the melt; the refining of aluminum and its alloys, in which the melt is coated with a flux containing no alkali metals and air is blown through the melt at 850-960®С} blowing the melt with water vapor that is in a gaseous state, together with a carrier gas, such as nitrogen; purging the melt with gases obtained from dry distillation of wood-based materials, which are placed in a closed gas-permeable container under the metal mirror.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802879366A SU872584A1 (en) | 1980-02-06 | 1980-02-06 | Device for liquid metal refining with gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802879366A SU872584A1 (en) | 1980-02-06 | 1980-02-06 | Device for liquid metal refining with gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU872584A1 true SU872584A1 (en) | 1981-10-15 |
Family
ID=20876314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802879366A SU872584A1 (en) | 1980-02-06 | 1980-02-06 | Device for liquid metal refining with gases |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU872584A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4328045A1 (en) * | 1993-08-20 | 1995-02-23 | Leybold Durferrit Gmbh | Process for decarburizing carbon-containing metal melts |
-
1980
- 1980-02-06 SU SU802879366A patent/SU872584A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4328045A1 (en) * | 1993-08-20 | 1995-02-23 | Leybold Durferrit Gmbh | Process for decarburizing carbon-containing metal melts |
| DE4328045C2 (en) * | 1993-08-20 | 2001-02-08 | Ald Vacuum Techn Ag | Process for decarburizing carbon-containing metal melts |
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