SU187255A1 - METHOD CASTING INGOTS - Google Patents
METHOD CASTING INGOTSInfo
- Publication number
- SU187255A1 SU187255A1 SU1020283A SU1020283A SU187255A1 SU 187255 A1 SU187255 A1 SU 187255A1 SU 1020283 A SU1020283 A SU 1020283A SU 1020283 A SU1020283 A SU 1020283A SU 187255 A1 SU187255 A1 SU 187255A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ingot
- electromagnetic
- casting ingots
- method casting
- electrodes
- Prior art date
Links
- 238000005266 casting Methods 0.000 title description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000005712 crystallization Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005288 electromagnetic effect Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- QXUAMGWCVYZOLV-UHFFFAOYSA-N boride(3-) Chemical compound [B-3] QXUAMGWCVYZOLV-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Description
Известны способы отливки слитков с электромагнитным воздействием на кристаллизацию металла.Known methods of casting ingots with an electromagnetic effect on the crystallization of the metal.
Описываемый способ отличаетс тем, что в осевой зоне слитка создают взаимодействие радиального и азимутального электромагнитных полей с излучением электромагнитных сил направленных вдоль оси слитка в направлении , противоположном конвективному потоку.The described method is characterized in that in the axial zone of the ingot they create interaction of radial and azimuthal electromagnetic fields with radiation of electromagnetic forces directed along the axis of the ingot in the direction opposite to the convective flow.
В осевую зону жидкой сердцевины слитка, формируюш,егос в изложнице, помеш,аетс электромагнитное устройство, состо н1,ее из внутреннего электрода и наружного электрода, вынолненного в виде трубы с боковыми отверсти ми . Электроды сделаны из жаростойкого и относнтельно высокоэлектропроводного материала , нанример борида циркони .In the axial zone of the liquid core of the ingot, forming, egos in the mold, an electromagnetic device, the state n1, of the inner electrode and the outer electrode, made in the form of a pipe with side openings, is placed. The electrodes are made of heat-resistant and relatively highly electrically conductive material, such as zirconium boride.
К электродам нрикладываетс разность потенциалов , создаюш,а в расплаве между электродами радиальное посто нное электрическое ноле. Ток, протекающий но центральному электроду, наводит посто нное азимутальное магнитное ноле, взаимодействие которого сThe potential difference is applied to the electrodes, creating a radial constant electric field in the melt between the electrodes. The current flowing through the central electrode induces a constant azimuthal magnetic field, the interaction of which with
радиальным электрическим полем приводит к по вленню в жидком металле, заключенном в зазоре между электродами, электромагнитных объемных сил, направленных вдоль оси слитка вниз. Под действием этих сил в осевой зоне слитка возникают нисход щие нотоки л идкого металла, компенсирующие восход щие конвективные потоки в этой зоне. Интенсивность потоков, возбуждаемых электромагнитными силами, регулируетс во времени изменением силы тока.a radial electric field leads to the appearance of a liquid metal enclosed in the gap between the electrodes, electromagnetic volume forces directed down the ingot axis. Under the action of these forces, in the axial zone of the ingot, descending Loki metal currents arise, compensating for the upward convective currents in this zone. The intensity of the fluxes excited by the electromagnetic forces is regulated in time by changing the current.
Предмет изобретени Subject invention
Снособ отливки слитков с электромагнитным воздействием на нроцесс кристаллизации, огличающийс тем, что, с целью устранени ликвации и удалени неметаллических включений, в осевой зоне слитка создают взаимодействие радиального и азимутального электромагнитных полей с излучением электромагнитных сил, направленных вдоль оси слитка в направлении , противоположном конвективному потоку .An ingot casting method with an electromagnetic effect on the crystallization process, which means that in order to eliminate segregation and removal of non-metallic inclusions, radial and azimuthal electromagnetic fields in the axial zone of the ingot interact with the radiation of electromagnetic forces directed along the ingot axis in the opposite direction to the convective flow. .
Publications (1)
Publication Number | Publication Date |
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SU187255A1 true SU187255A1 (en) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4709747A (en) * | 1985-09-11 | 1987-12-01 | Aluminum Company Of America | Process and apparatus for reducing macrosegregation adjacent to a longitudinal centerline of a solidified body |
US5246060A (en) * | 1991-11-13 | 1993-09-21 | Aluminum Company Of America | Process for ingot casting employing a magnetic field for reducing macrosegregation and associated apparatus and ingot |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4709747A (en) * | 1985-09-11 | 1987-12-01 | Aluminum Company Of America | Process and apparatus for reducing macrosegregation adjacent to a longitudinal centerline of a solidified body |
US5246060A (en) * | 1991-11-13 | 1993-09-21 | Aluminum Company Of America | Process for ingot casting employing a magnetic field for reducing macrosegregation and associated apparatus and ingot |
US5375647A (en) * | 1991-11-13 | 1994-12-27 | Aluminum Company Of America | Process for ingot casting employing a magnetic field for reducing macrosegregation and associated apparatus and ingot |
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