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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
Applicant: ALD VACUUM TECHNOLOGIES GMBH
Inventor： Sergejs Spitans , Henrik Franz , Bjoern Sehring , Markus Holz
Abstract: 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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公开(公告)号：US10900141B2
公开(公告)日：2021-01-26
申请号：US16306110
申请日：2017-02-21
Applicant: WOONGJIN ENERGY CO., LTD.
Inventor： Woo Seok Nam
Abstract: A heater for an ingot growing apparatus is provided. The heater, disposed outside a crucible so as to heat the crucible, for an ingot growing apparatus comprises: a body part including a flow path through which a heat source, for generating heat for heating the crucible, flows; and a heat increasing part formed by being inwardly cut at a predetermined depth along a circumferential direction at an upper side of the body part, wherein a portion of the body part, at which the heat increasing part is formed, has a thickness (d3) formed to be less than a thickness (d2) of the other portion of the body part such that the heat can be intensively generated at the heat increasing part.
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公开(公告)号：US10508328B2
公开(公告)日：2019-12-17
申请号：US15716570
申请日：2017-09-27
Applicant: Novelis Inc.
Inventor： Julio Malpica , Cedric Wu , Rahul Vilas Kulkarni , Rodger Brown , Duane E. Bendzinski
IPC: B21D22/02 , C22F1/04 , B21C47/18 , B21C47/34 , H05B6/10 , B21C47/16 , B65H29/00 , B65H29/20 , B21D37/16 , C21D1/42 , F27D99/00 , H05B6/32 , H05B6/36 , B21B39/02 , B21B39/34 , B21C37/02 , C21D1/04 , C22C21/02 , C22C21/06 , C22C21/10 , C22C21/12 , B65G54/02 , C22F1/02 , H02N15/00 , F27D19/00
Abstract: Systems and methods of hot forming a metal blank include receiving the metal blank at a heater and positioning the blank adjacent a magnetic rotor of the heater. The systems and methods also include heating the metal blank through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal blank such that the metal blank is heated.
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公开(公告)号：US07736586B2
公开(公告)日：2010-06-15
申请号：US12370220
申请日：2009-02-12
Applicant: Kenzo Takahashi
Inventor： Kenzo Takahashi
CPC classification number: C22B21/0084 , B01F13/0809 , C22B9/003 , F27B14/08 , F27D27/00 , H05B6/34 , Y02P10/253
Abstract: There is provided a melting furnace with an agitator. The melting furnace with an agitator includes a melting furnace that contains melt, and an agitator that agitates the melt by an electromagnetic force. The agitator includes a first electrode that is provided at an arbitrary position of the melting furnace so as to come in contact with the melt contained in the melting furnace, a second electrode that is provided near a bottom wall of the melting furnace so as to come in contact with the melt, a first magnetic field device that is provided outside the melting furnace so as to face the bottom wall of the melting furnace and makes a north pole face the bottom wall, and a second magnetic field device that is provided outside the melting furnace so as to face the bottom wall of the melting furnace and makes a south pole face the bottom wall. The first and second magnetic field devices are disposed with a gap in a certain direction.
Abstract translation: 提供了一种具有搅拌器的熔炉。 具有搅拌器的熔化炉包括熔融炉，其熔融熔化炉和通过电磁力搅拌熔体的搅拌器。 搅拌器包括：第一电极，其设置在熔炉的任意位置以与熔炉内容纳的熔体接触;第二电极，设置在熔化炉底壁附近，以便到达熔融炉 与所述熔体接触的第一磁场装置，其设置在所述熔化炉的外部，以面向所述熔炉的底壁，并使北极面向所述底壁;以及第二磁场装置， 熔化炉，以面对熔炉的底壁，使南极面向底壁。 第一和第二磁场装置以特定方向间隔设置。
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公开(公告)号：US5892790A
公开(公告)日：1999-04-06
申请号：US939652
申请日：1997-09-29
Applicant: Kenji Abiko , Hitoshi Kawano , Masanori Tsuda , Tadahito Nakajima
Inventor： Kenji Abiko , Hitoshi Kawano , Masanori Tsuda , Tadahito Nakajima
CPC classification number: H05B6/32 , F27B14/063 , H05B6/24
Abstract: A cold crucible induction melting furnace is provided with a plurality of segments separated by a plurality of slits that surround a bottom member which together form the melting chamber. Each lower end of each segment is overlapped with and spaced from a short part of a vertically extending side wall of the bottom member so as to form a horizontal gap there between. A radially and outwardly extending flange protrudes from the bottom member side wall below each segment lower end to form a lower gap there between. An induction coil is disposed around and spaced from an outer face of the segments with a lower end adjacent to each of the lower segment ends and an upper end adjacent to an upper part of each segment that is in turn connected with an adjacent upper segment part to form a short circuited part. The radial thickness of each segment from the upper end of the coil to the lower end of the segments is the same and the magnetic flux generated by the induction coil passing through the lower gap and the horizontal gap provides increased magnetic flux density at least adjacent to the region adjacent to the bottom member and the lower ends of the segments.
Abstract translation: 冷坩埚感应熔炼炉设置有多个由多个狭缝隔开的段，所述多个狭缝围绕底部构件，所述底部构件一起形成熔化室。 每个段的每个下端与底部构件的垂直延伸的侧壁的短部分重叠并间隔开，从而在其之间形成水平间隙。 径向和向外延伸的凸缘从每个段下端下方的底部构件侧壁突出，以在其之间形成较小间隙。 一个感应线圈设置在该片段的外表面周围并与该片段的外表面间隔开，并具有与每个下段末端相邻的下端，以及与每个片段的上部相邻的上端，该上端又与相邻的上片段连接 形成短路部分。 从线圈的上端到段的下端的每个段的径向厚度是相同的，并且由感应线圈产生的通过下间隙和水平间隙的磁通量提供至少相邻的线圈的增加的磁通密度 邻近底部构件的区域和段的下端。
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公开(公告)号：US5319670A
公开(公告)日：1994-06-07
申请号：US918095
申请日：1992-07-24
Applicant: Richard J. Fox
Inventor： Richard J. Fox
IPC: H05B6/32
CPC classification number: H05B6/32
Abstract: A system for damping oscillatory and spinning motions induced in an electromagnetically levitated material. Two opposed field magnets are located orthogonally to the existing levitation coils for providing a DC quadrupole field (cusp field) around the material. The material used for generating the DC quadrupole field must be nonconducting to avoid eddy-current heating and of low magnetic permeability to avoid distorting the induction fields providing the levitation.
Abstract translation: 一种用于阻尼在电磁悬浮材料中引起的振荡和旋转运动的系统。 两个相对的磁场磁体与现有的悬浮线圈正交设置，用于在材料周围提供一个直流四极场（尖点场）。 用于产生直流四极场的材料必须是不导电的，以避免涡流加热和低磁导率，以避免扭曲提供悬浮的感应场。
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公开(公告)号：US5003551A
公开(公告)日：1991-03-26
申请号：US526865
申请日：1990-05-22
Applicant: John H. Mortimer
Inventor： John H. Mortimer
CPC classification number: F27D99/0006 , C21D1/42 , C30B13/20 , H05B6/32 , H05B2213/02 , Y02P10/253
Abstract: An apparatus and method for inductively melting a quantity of metal, without having to contain the metal in a crucible, is described. The solid metal to be melted is placed within a first induction coil excited by an alternating current and adapted to provide a greater electromagnetic force towards the lower portion of the quantity of metal. The solid metal rests on a support, having an opening therethrough, which also comprises means for keeping the support at a low temperature relative to the metal as it melts. When energy in the form of the alternating current is provided to the coil, the metal melts from the top downward, but the concentration of electro-magnetic force towards the bottom of the metal causes the liquid metal to retain a cylindrical shape. A non-varying electromagentic field is applied to the quantity of metal to minimize violent stirring of the molten portion of the quantity of metal caused by the time-varying field.
Abstract translation: 描述了一种用于在不必将坩埚中包含金属的情况下感应地熔化一定数量的金属的装置和方法。 待熔化的固体金属放置在由交流电激励的第一感应线圈中，并且适于向金属量的下部提供更大的电磁力。 固体金属位于具有穿过其中的开口的支撑件上，该支撑件还包括当支撑件融化时相对于金属保持低温的装置。 当向线圈提供以交流电形式的能量时，金属从顶部向下熔化，但是向金属底部的电磁力的浓度导致液态金属保持圆柱形状。 对金属量施加非变化的电磁场以最小化由时变场引起的金属量的熔融部分的剧烈搅拌。
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公开(公告)号：US3809846A
公开(公告)日：1974-05-07
申请号：US34388273
申请日：1973-03-22
Applicant: SIEMENS AG
Inventor： BAUMGARTNER W , KELLER W , SCHNOELLER M
CPC classification number: C30B13/20
Abstract: An induction heating coil which is detachably mounted on a holding member of an induction heating device having a chamber receiving at least a portion of the coil, which device is adapted for use in a process of zone melting of a rod of material, characterized by the coil comprising a tube of insulating glasslike material, such as glass or quartz, which is both heat resistant and vacuum-tight, receiving a metal conductor therein. Each end of the coil is provided with an intermediate member of a good conducting material which member is electrically connected to the conductor and is sealed in a vacuum-tight relationship with both the tube of the coil and the holding member of the device. Preferably, a cooling agent such as water is circulated through the tube to cool the metal conductor during a heating operation. To form the seal with the intermediate member, the tube is either provided with a metalized end that is soldered to the intermediate member or the intermediate member is provided with a ring of silicon rubber which is compressed between the tube and intermediate member by an appropriate clamping device.
Abstract translation: 一种感应加热线圈，其可拆卸地安装在感应加热装置的保持构件上，所述感应加热装置具有容纳线圈的至少一部分的腔室，该装置适于在材料棒的区域熔化过程中使用，其特征在于， 线圈，其包括耐热和真空密封的玻璃或石英等绝缘玻璃状材料管，在其中容纳金属导体。 线圈的每个端部设置有良好导电材料的中间构件，该构件与导体电连接并且与线圈的管和装置的保持构件以真空密封的关系密封。 优选地，诸如水的冷却剂在加热操作期间通过管循环以冷却金属导体。 为了与中间构件形成密封，管或者设置有焊接到中间构件的金属化端，或者中间构件设置有硅橡胶环，其通过适当的夹紧在管和中间构件之间被压缩 设备。
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9.发明授权Device for crucible-free or floating-zone melting a crystalline rod, especially a semiconductor rod 失效用于无结块或浮动区域熔化的装置一个晶体管，特别是一个半导体器件
公开(公告)号：US3601569A
公开(公告)日：1971-08-24
申请号：US3601569D
申请日：1969-10-07
Applicant: SIEMENS AG
Inventor： KELLER WOLFGANG
IPC: H05B6/32 , C30B13/20 , H01L21/208 , H05B5/00 , H05B9/02
CPC classification number: C30B13/20
Abstract: Device for floating-zone melting a crystalline rod includes a flat-wound induction heating coil adapted to encircle a crystalline rod so as to maintain a molten zone therein, and a slotted hollow member of electrically conductive material disposed coaxially to the flat-wound coil in close coupling therewith, the hollow member having an axial length many times greater than that of the flat-wound coil.
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公开(公告)号：US3507144A
公开(公告)日：1970-04-21
申请号：US3507144D
申请日：1968-03-21
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： HICKAM WILLIAM M
CPC classification number: H05B6/32 , G01N33/203
