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公开(公告)号：US11197351B2
公开(公告)日：2021-12-07
申请号：US17049526
申请日：2019-07-09
发明人： Sergejs Spitans , Henrik Franz , Bjoern Sehring , Egon Bauer , Andreas Krieger
摘要： The invention relates to a levitation melting process and a device for producing castings with movable induction units. In this process, induction units are used in which the opposite ferrite poles with the induction coils are movable and move in opposite directions. In this way, the induction units for melting the batches can be arranged close together in order to increase the efficiency of the induced magnetic field. When casting the molten batch, the induced magnetic field is reduced by increasing the distance between the ferrite poles with the induction coils, thus preventing the melt from touching the ferrite poles or the induction coils.
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公开(公告)号：US11919089B2
公开(公告)日：2024-03-05
申请号：US17634834
申请日：2020-08-12
发明人： Henrik Franz , Sergejs Spitans
IPC分类号： B22F9/08
CPC分类号： B22F9/082 , B22F2009/0824 , B22F2009/0836 , B22F2009/084 , B22F2009/0844 , B22F2999/00
摘要： The invention relates to a method for splitting an electrically conductive liquid, in particular a melt jet, comprising the steps providing the electrically conductive liquid which moves in a first direction (12) in the form of a liquid jet (10); and generating high-frequency travelling electromagnetic fields surrounding the liquid jet (10) which travel in the first direction (12) and accelerate the liquid jet (10) in the first direction (12), thereby atomizing the liquid jet (10).
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公开(公告)号：US11192179B2
公开(公告)日：2021-12-07
申请号：US17049534
申请日：2019-07-09
发明人： Sergejs Spitans , Henrik Franz , Bjoern Sehring
摘要： The invention relates to a levitation melting process and an apparatus for producing castings comprising a ring-shaped element of a conductive material for introducing the casting of a molten batch into a casting mould. In the process, the ring-shaped element is introduced into the region of the alternating electromagnetic field between the induction coils in order to cast the molten batch, thereby initiating a targeted run-off of the melt into the casting mould by influencing the induced magnetic field.
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4.发明授权公开(公告)号：US11102850B1
公开(公告)日：2021-08-24
申请号：US17049537
申请日：2019-07-09
发明人： Sergejs Spitans , Henrik Franz , Bjoern Sehring , Markus Holz , Andreas Krieger
摘要： The invention relates to a levitation melting method and an apparatus for producing casting bodies with tilted induction units. During this method, induction units are employed in which the opposing ferrite poles with the induction coils are not arranged lying in one plane, but tilted at a determined angle to the levitation plane. In this way, an increase in efficiency of the induced magnetic field for melting the batches can be achieved with the induction units. The tilted arrangement increases the portion of the induced magnetic field that effectively contributes to the holding force of the field for levitation of the melt.
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公开(公告)号：US12048081B2
公开(公告)日：2024-07-23
申请号：US17635141
申请日：2020-08-12
CPC分类号： H05B6/18 , B22F9/082 , B33Y80/00 , H05B6/367 , B22F2009/0836 , B22F2009/0848
摘要： The invention relates to an EIGA coil (10) for partial melting an electrode (40). The EIGA coil (10) comprises a plurality of windings (12A, 12B, 12C) which are coaxially arranged with respect to a center axis (M) and axially spaced from each other, wherein each of the plurality of windings (12A, 12B, 12C) is formed in the shape of a ring interrupted by a gap (14A, 14B, 14C) and equidistant with respect to the center axis (M) and extending in a plane perpendicular to the center axis (M). Adjacent windings (12A, 12B; 12B, 12C) of the plurality of windings (12A, 12B, 12C) are respectively connected to each other via a connecting portion (20AB, 20BC; 120AB, 120BC).
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公开(公告)号：US11370020B2
公开(公告)日：2022-06-28
申请号：US17048842
申请日：2019-04-18
发明人： Sergejs Spitans , Henrik Franz , Bjoern Sehring , Markus Holz
摘要： The invention relates to a method for producing casting bodies in a levitation melting method in which a batch of an electrically conductive material is brought into the sphere of influence of at least one alternating electromagnetic field by means of a starting material having a plurality of pre-separated batches separated by regions of reduced cross-section so that the batch is kept in a state of levitation. The regions are designed in such a way that separation of the pre-separated batches takes place only during melting in an alternating electromagnetic field. The melt is then cast into casting moulds.
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