SU187255A1 - METHOD CASTING INGOTS - Google Patents

METHOD CASTING INGOTS

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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
Application number
SU1020283A
Other languages
Russian (ru)
Original Assignee
Э. А. Иодко, А. Б. Капуста , Е. М. Щелухин
Publication of SU187255A1 publication Critical patent/SU187255A1/en

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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. .

SU1020283A METHOD CASTING INGOTS SU187255A1 (en)

Publications (1)

Publication Number Publication Date
SU187255A1 true SU187255A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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