公开(公告)号：US20140041414A1

公开(公告)日：2014-02-13

申请号：US14058697

申请日：2013-10-21

Applicant: Inductotherm Corp.

Inventor： Oleg S. FISHMAN

IPC: C01B33/021

CPC classification number: C01B33/021 ,  C01B33/02 ,  C01B33/023 ,  C01B33/039 ,  C30B11/002 ,  C30B11/003 ,  C30B11/007 ,  C30B28/06 ,  C30B28/08 ,  C30B28/10 ,  C30B29/06

Abstract: Solid or semi-solid feedstock is melted in an open bottom electric induction cold crucible furnace. Directionally solidified multi-crystalline solid purified material continuously exits the bottom of the furnace and may optionally pass through a thermal conditioning chamber before being gravity fed into a transport mold where an ingot of the purified multi-crystalline solid material is transported to a remote holding area after the transport mold is filled with the multi-crystalline material and cut from the continuous supply of material. Cool down of the ingot is accomplished remote from the open bottom of the electric induction cold crucible furnace.

Abstract translation: 固体或半固体原料在开口底部电感冷坩埚炉中熔化。 定向凝固的多晶固体纯化材料连续地离开炉底，并且可以选择性地通过热调节室，然后重力加入到运输模具中，其中纯化的多晶固体材料的锭被输送到远程保持区域 运输模具填充多晶材料后，从连续供料中切割。 铸锭的冷却是远离电动感应冷坩埚炉的开口底部完成的。

公开(公告)号：US20140010257A1

公开(公告)日：2014-01-09

申请号：US14021455

申请日：2013-09-09

Applicant: Inductotherm Corp.

Inventor： Oleg S. FISHMAN

IPC: H05B6/34 ,  H05B6/36 ,  H05B6/06

CPC classification number: H05B6/34 ,  F27B14/061 ,  F27B14/14 ,  F27D99/0006 ,  H05B6/067 ,  H05B6/24 ,  H05B6/32 ,  H05B6/367 ,  H05B6/44 ,  H05B2213/02

Abstract: Apparatus and method are provided for electric induction heating and melting of a transition material that is non-electrically conductive in the solid state and electrically conductive in the non-solid state in an electric induction heating and melting process wherein solid or semi-solid charge is periodically added to a heel of molten transition material initially placed in a refractory crucible. Induction power is sequentially supplied to a plurality of coils surrounding the exterior height of the crucible at high power level and high frequency with in-phase voltage until a crucible batch of transition material is in the crucible when the induction power is reduced in power level and frequency with voltage phase shifting to the induction coils along the height of the crucible to induce a unidirectional electromagnetic stir of the crucible batch of material.

公开(公告)号：US20140250950A1

公开(公告)日：2014-09-11

申请号：US14281114

申请日：2014-05-19

Applicant: Inductotherm Corp.

Inventor： Oleg S. FISHMAN

IPC: C01B33/037

CPC classification number: C01B33/037 ,  C30B11/003 ,  C30B29/06

Abstract: The present invention is apparatus for, and method of, purification of silicon by electric induction heating and melting of silicon in a crucible or susceptor vessel, with subsequent directional partial cooling of the silicon melt to an initial amorphous-to-crystalline (solidification) temperature to produce a directionally solidified purified quantity of silicon and a separate quantity of high impurity silicon. The quantity of high impurity silicon is removed from the vessel and the purified quantity of silicon at solidification temperature is remelted in the vessel for removal from the vessel or further processing.

Abstract translation: 本发明是通过在坩埚或基座容器中的电感应加热和熔化硅来纯化硅的装置和方法，随后将硅熔体定向部分冷却至初始的无定形至晶态（凝固）温度 以产生定向凝固的纯化量的硅和单独量的高杂质硅。 从容器中除去高杂质硅的量，并将固化温度下的纯化硅量重新熔化在容器中以从容器中取出或进一步加工。

公开(公告)号：US20140029644A1

公开(公告)日：2014-01-30

申请号：US14021574

申请日：2013-09-09

Applicant: Inductotherm Corp.

Inventor： Oleg S. FISHMAN

IPC: H05B6/34 ,  H05B6/06 ,  H05B6/44 ,  F27B14/06

CPC classification number: H05B6/34 ,  F27B14/061 ,  F27B14/14 ,  F27D99/0006 ,  H05B6/067 ,  H05B6/24 ,  H05B6/32 ,  H05B6/367 ,  H05B6/44 ,  H05B2213/02

Abstract: Apparatus and method are provided for electric induction heating and melting of a transition material that is non-electrically conductive in the solid state and electrically conductive in the non-solid state in an electric induction heating and melting process wherein solid or semi-solid charge is periodically added to a heel of molten transition material initially placed in a refractory crucible. Induction power is sequentially supplied to a plurality of coils surrounding the exterior height of the crucible at high power level and high frequency with in-phase voltage until a crucible batch of transition material is in the crucible when the induction power is reduced in power level and frequency with voltage phase shifting to the induction coils along the height of the crucible to induce a unidirectional electromagnetic stir of the crucible batch of material.

Abstract translation: 提供了用于电感应加热和熔融固态的非导电性的转换材料的电感应加热和熔融，并且在电感应加热和熔融过程中以非固态导电，其中固体或半固体电荷为 定期添加到最初放置在耐火坩埚中的熔融过渡材料的跟部。 感应电力以高功率电平和高频率的同相电压被顺序提供给围绕坩埚的外部高度的多个线圈，直到当功率电平降低感应功率时，过渡材料的坩埚批次在坩埚中，并且 频率，其电压相位沿着坩埚的高度移动到感应线圈，以引起坩埚批料的单向电磁搅拌。

公开(公告)号：US20140010256A1

公开(公告)日：2014-01-09

申请号：US14021520

申请日：2013-09-09

Applicant: Inductotherm Corp.

Inventor： Oleg S. FISHMAN

IPC: H05B6/06 ,  H05B6/34 ,  H05B6/24

CPC classification number: H05B6/34 ,  F27B14/061 ,  F27B14/14 ,  F27D99/0006 ,  H05B6/067 ,  H05B6/24 ,  H05B6/32 ,  H05B6/367 ,  H05B6/44 ,  H05B2213/02

Abstract: Apparatus and method are provided for electric induction heating and melting of a transition material that is non-electrically conductive in the solid state and electrically conductive in the non-solid state in an electric induction heating and melting process wherein solid or semi-solid charge is periodically added to a heel of molten transition material initially placed in a refractory crucible. Induction power is sequentially supplied to a plurality of coils surrounding the exterior height of the crucible at high power level and high frequency with in-phase voltage until a crucible batch of transition material is in the crucible when the induction power is reduced in power level and frequency with voltage phase shifting to the induction coils along the height of the crucible to induce a unidirectional electromagnetic stir of the crucible batch of material.