30results about "Furnaces without endless core" patented technology

An ion source has an arc chamber defining an arc chamber volume. An inductively heated dopant material source is in fluid communication with the arc chamber volume, and has a crucible containing a dopant species and an inductive heater. An induction heater power supply is coupled to the inductive heater to supply an induction current to the induction heater. A controller controls the induction current such that the inductive heater heats the dopant species to a predetermined temperature based on the induction current and selectively flows the dopant species from the crucible to the arc chamber volume. A material monitoring system determines an amount of the dopant species in the crucible based on an induction current supplied to the induction heater. An intermediary receptor can be heated in the crucible by the induction heater to aid a melting of the dopant species within the crucible.

To reduce the dislocation loop defect density that causes stacking faults in a silicon wafer.SOLUTION: The silicon wafer is 300 mm in diameter. The dopant is phosphorus. The resistivity is 0.6 mΩ cm or more and 1.2 mΩ cm or less. The carbon concentration is 3.5×1015atoms / cm3 or more and 5×1017atoms / cm3 or less.SELECTED DRAWING: Figure 5

In one embodiment, a method for producing a high-purity copper alloy includes the steps of providing raw materials to a melting furnace and melting the raw materials. The method further includes the step of bubbling an inert gas into the molten copper alloy to form a high-purity copper alloy. In one embodiment, the raw materials have a composition configured to form a molten copper alloy containing at least 50% by weight of copper, and the melting furnace is configured to rotate around a central axis. The embodiment also covers apparatus for producing a high-purity copper alloy and a method for manufacturing the apparatus.

To reduce the dislocation loop defect density that causes stacking faults in a silicon wafer.SOLUTION: The silicon wafer is 300 mm in diameter. The dopant is phosphorus. The resistivity is 0.6 mΩ cm or more and 1.2 mΩ cm or less. The carbon concentration is 3.5×1015atoms / cm3 or more and 5×1017atoms / cm3 or less.SELECTED DRAWING: Figure 5

The invention relates to an induction crucible furnace having a refractory crucible, a coil extending around the crucible and having a plurality of coil sections which are arranged one above the other in the coil longitudinal direction and between which an insulation is arranged, and having a plurality of magnetic return elements which are arranged on the outer wall of the coil so as to extend in the coil longitudinal direction, wherein the insulation has a plurality of bags in an elongate form which are filled with a pourable material.

The present disclosure discloses a heater in a Hot-Zone of a single crystal pulling apparatus and a single crystal pulling apparatus. The heater in the Hot-Zone of the single crystal pulling apparatus includes a side-main heater and an auxiliary heater. Each of the side-main heater and the auxiliary heater is a cylindrical structure with openings at two ends thereof. Each of the side-main heater and the auxiliary heater includes a top open end and a bottom open end. The auxiliary heater is sleeved around the side-main heater, and the top open end of the auxiliary heater extends out of the top open end of the side-main heater.

In an aspect, a method of manufacturing a high purity copper-based alloy comprises providing in a melting furnace a feedstock and melting the feedstock. The method additionally includes bubbling an inert gas into the molten copper-based alloy to form the high purity copper-based alloy. Aspects are also directed to an apparatus and a method of fabricating an apparatus for manufacturing the high purity copper-based alloy.

An ingot growing apparatus is disclosed. An ingot growing apparatus comprising a heater according to an aspect of the present invention may comprise: a crucible for accommodating molten silicon; a growth furnace having an inner space in which the crucible is installed; a susceptor having an inner surface shaped to correspond to an outer surface of the crucible and surrounding the outer surface of the crucible; and a heater for heating the susceptor, wherein the heater may comprise: a coil which is fixed at a position spaced a predetermined distance apart from an outer surface of the susceptor, is formed to be wound along the outer surface of the susceptor to generate a magnetic field, and heats the susceptor by electromagnetic induction due to the magnetic field; and a shield which is formed to surround an outer surface of the coil to support the coil and blocks the coil from being exposed to the inner space of the growth furnace.

This invention relates to a method for melting and processing, particularly mixing, conductive materials, especially sponge iron, having a high content of gangue and slagging agent, using at least one induction furnace (1) and coupling at least one alternating magnetic field to the material via at least one first coil assembly (4) and at least one second coil assembly (5), the first and second coil assemblies surrounding a melting crucible (2) of the induction furnace (1) having a crucible volume (3) for containing the material, wherein the method comprises melting and stirring the molten material while the first coil assembly (4) and the second coil assembly (5) are operating simultaneously, wherein, particularly during operation of the induction furnace (1), the phase angle of the alternating voltage of the first coil assembly (4) and / or the second coil assembly (5) is adjusted such that, during stirring operation, the phase angle of the alternating voltage of the first coil assembly (4) is at least temporarily offset relative to the phase angle of the alternating voltage of the second coil assembly (5). The invention also relates to an induction furnace (1) for carrying out the method.

The invention discloses a strip steel transverse magnetic flux induction heater, a heating device and a heating method, and belongs to the technical field of electromagnetic heating. A transverse magnetic induction coil module is arranged in the strip steel transverse magnetic flux induction heater and comprises a plurality of upper induction coil modules and lower induction coil modules, and a servo mechanism for driving the upper induction coil modules and the lower induction coil modules to move is arranged in the cabinet body. A muffle furnace is arranged between the upper induction module and the lower induction module; each of the upper induction coil module and the lower induction coil module comprises a first coil and a second coil which are split, the mounting frame is provided with a sliding structure for respectively driving the first coil and the second coil to horizontally slide, and the mounting frame is provided with a shielding structure for shielding the induction coils. By adopting the strip steel transverse magnetic flux induction heater, the heating device and the heating method provided by the invention, the problem of poor heating uniformity of the existing hot galvanizing and silicon steel thin strip in the width direction above the Curie temperature can be solved.

A magnetic induction furnace (1) adapted to heat solid or tubular metal billets (5), of various lengths and diameters, made of non-ferrous materials, for example to be extruded, comprises a fixed body or carcass (16) in which there is arranged an electric motor (21) defined by an electric stator (23) into which it is inserted an annular electric rotor (25) connected to a rotor body or tubular support (26) carrying a plurality of permanent magnets (27) arranged so as to define a hollow magnetic cylinder in which there is provided for a cavity (10) adapted to contain a non-rotating billet (5) to be heated; the permanent magnets (27) of the rotor body (26) comprise main permanent magnets (27A) magnetised in the radial direction with respect to such rotor body (25) and auxiliary permanent magnets (27B) magnetised in the axial direction, said magnets (27A, 27B) generating flux lines of the magnetic field (X) directed in depth towards the internal of the cavity (10) adapted to contain the billet (5) so as to improve the heating thereof induced with respect to a conventional magnetic arrangement.

A sample reservoir (104) containing a sample (118), a nozzle (106), and a heated element (108) are arranged in a vacuum chamber (102). An induction coil (114) is located on the outside of the vacuum chamber (102). The heated element (108) is located around the sample reservoir (104) and the nozzle (106). Electromagnetic power is wirelessly transferred from the induction coil (114) to the heated element (108), whereby the heated element (108) is heated. Heating of the heated element (108) causes the sample reservoir (104) and the nozzle (106) to be heated, whereby the sample (118) in the sample reservoir (104) is heated. An atomic beam generated by the heating of the sample (118) is emitted from the nozzle (106).

The present invention relates to silicon wafers and epitaxial silicon wafers. Silicon wafers are provided in which the dopant is phosphorus, the resistivity is 1.2 mΩ-cm or less, and the carbon concentration is 3.5 x 10 15 atoms / cm 3 or more. The carbon concentration near the surface of the silicon wafer is reduced by 10% or more compared to the center depth of the silicon wafer.

To prevent leakage of an electromagnetic field generated by an induction coil.SOLUTION: An induction heating assembly (22) for a vapor generating device (10) includes an induction coil (32) and a heating compartment (24) arranged to receive an induction heatable cartridge (26). A first electromagnetic shield layer (36) is arranged outside the induction coil (32), and a second electromagnetic shield layer (46) is arranged outside the first electromagnetic shield layer (36). The first and second electromagnetic shield layers (36, 46) differ in one or both of their electric conductivity and their magnetic permeability.SELECTED DRAWING: Figure 1

A sample reservoir containing a sample, a nozzle, and a heated element are arranged in a vacuum chamber. An induction coil is located on the outside of the vacuum chamber. The heated element is located around the sample reservoir and the nozzle. Electromagnetic power is wirelessly transferred from the induction coil to the heated element, whereby the heated element is heated. Heating of the heated element causes the sample reservoir and the nozzle to be heated, whereby the sample in the sample reservoir is heated. An atomic beam generated by the heating of the sample is emitted from the nozzle.

Various embodiments of the present invention relate to an aerosol generating device and an aerosol generating system including the same. In one embodiment, the aerosol generating system includes an aerosol generating product and an aerosol generating device that heats the aerosol generating product inserted into a cavity. The aerosol generating product includes a first susceptor arranged in a first portion and a second susceptor arranged in a second portion different from the first portion. The aerosol generating device includes a first coil arranged in a first region of the cavity and a second coil arranged in a second region of the cavity different from the first region, and a control unit that controls the power supplied to the first coil and the second coil.

Disclosed is a heating method and a heating system for heating a body made of semiconductor material (1), the method comprising: - applying polarization to the body made of semiconductor material via polarization electrodes (2), - applying induction heating to the body made of semiconductor material via electrical windings (3) arranged close to the body made of semiconductor material, the electrical windings being traversed by an alternating current; use in particular for silicon carbide (SiC); and use in particular for molten salt fusion in the context of a Generation IV nuclear reactor.

An adjustable shunt system of an induction furnace and method of use thereof. The adjustable shunt system may include a shunt that operably engages with at least one cooling coil of the induction furnace and a power coil of the induction furnace. The adjustable shunt system may also include a support column operably engaged with an outer shell of the induction furnace. The adjustable shunt system may also include at least one shunt drive assembly operably engaged with the support column and the shunt. The at least one shunt drive assembly is configured to automatically adjust the shunt along an axis angled relative to the support column.

The invention provides a magnesium alloy electromagnetic heating material pipe which comprises a material pipe, and the outer portion of the material pipe is coated with a heat preservation layer. An eddy current coil is wound outside the thermal insulation layer; the eddy current coil is provided with a heat-resistant insulating outer layer. An alternating magnetic field is generated through an eddy current coil, molten magnesium alloy flowing through a material pipe induces eddy current heating, active heating is achieved, the problem that temperature reduction and solidification can still be achieved through pure heat insulation is solved, and the problems that in a traditional resistance wire heating mode, on one hand, heating efficiency cannot be guaranteed, and on the other hand, resistance wires are prone to breakage and short in service life are solved. And high temperature in the pipeline is ensured, so that the metal fluid in the pipeline keeps good flowability, and the smoothness of the material pipe is ensured.

A magnetic induction furnace configured to heat solid or tubular metal billets, of various lengths and diameters, made of non-ferrous materials. The furnace includes a fixed body in which there is arranged an electric motor having an annular rotor rotatably disposed in a stator. The annular rotor is joined to a rotor body carrying a plurality of permanent magnets arranged so as to define a hollow magnetic cylinderhaving a cavity configured to contain a non-rotating billet to be heated. The permanent magnets of the rotor body comprise main permanent magnets magnetized in the radial direction with respect to such rotor body and auxiliary permanent magnets magnetized in the axial direction. The permanent magnets generate flux lines of a magnetic field directed inwardly, towards an interior of the cavity configured to contain the billet so as to improve the heating thereof.

Disclosed herein is a device for manufacturing a single crystal comprising a furnace that includes a furnace wall; a quartz tube disposed concentrically within the furnace wall; an induction coil disposed in an annulus between the quartz tube and the furnace wall; a crucible disposed at a bottom surface of the furnace within the quartz tube; where the crucible includes a wall extending upward from a bottom crucible surface; and a refractory lining being disposed in an annulus between the quartz tube and the crucible; where a portion of the refractory lining has a different composition, property, geometry, or a combination thereof from the remainder of the crucible.

In one aspect, a method of making a high purity copper-based alloy includes providing a feedstock in a furnace and melting the feedstock. The method additionally includes bubbling an inert gas into the molten copper-based alloy to form a high purity copper-based alloy. Various aspects also relate to an apparatus for manufacturing a high purity copper-based alloy and a method of manufacturing the apparatus.

A coreless induction furnace that is automatically adjustable during assembly operations or melting operations. The furnace may include an outer shell, a set of adjustable shunt systems that operably engages with the outer shell, at least one cooling coil that operably engages with the set of adjustable shunt systems, and a power coil that operably engages with the at least one cooling coil and the set of adjustable shunt systems. The furnace is configured to automatically adjust at least one shunt of the set of adjustable shunt systems relative to at least one of the at least one cooling coil and the power coil. The furnace may also include an adjustable head system that operably engages with the outer shell. The adjustable head system is configured to automatically adjust a head of the adjustable head system relative to the at least one cooling coil and the power coil.

Methods of monitoring pressure on one or both of a shunt and a head of an induction furnace during a melting process. Methods include steps of engaging at least one shunt drive assembly with a support column and the shunt or engaging at least one head drive assembly with an apron and the head. Methods may also include steps of providing at least one load cell with the shunt at a first position and with the at least one shunt drive assembly or at least one load cell with the head at a first position and with the at least one head drive assembly. Methods may also include connecting a controller with the at least one load cell of the shunt system and / or the head system. Methods may also include connecting the controller with the at least one shunt drive assembly and / or the at least one head drive assembly.

This invention provides a small, efficient, and lightweight electromagnetic shielding structure that reduces leakage of the electromagnetic field generated by the induction coil, thereby providing a smaller induction heating assembly and, consequently, a smaller steam generation device. [Solution] An induction heating assembly (22) for a steam generating device (10) includes an induction coil (32) and a heating compartment (24) arranged to receive an induction-heatable cartridge (26). A first electromagnetic shielding layer (36) is located outside the induction coil (32), and a second electromagnetic shielding layer (46) is located outside the first electromagnetic shielding layer (36). The first and second electromagnetic shielding layers (36, 46) differ in their conductivity and / or their magnetic permeability.

A heat treatment device includes an object to be transported that contains a treatment target and includes at least a heating element that heats the treatment target, a transport device that transports the object to be transported, and an induction heating device that includes a heating coil that is movable to advance and retract with respect to the object to be transported, and makes a magnetic field act on the object to be transported to generate heat from the heating element.

Heating method and heating system for heating a body made of semiconductor material (1) the method comprising: - applying a polarization to the body made of semiconductor material via polarization electrodes (2), - applying induction heating to the body made of semiconductor material via electrical windings (3) arranged near the body made of semiconductor material, the electrical windings being traversed by an alternating current, application in particular to silicon carbide (SiC), and application in particular to the melting of molten salts in the context of a fourth generation nuclear reactor.

An induction crucible furnace includes a fireproof crucible and a coil including an outer wall and is configured to extend around the crucible. The coil includes a plurality of coil portions arranged one above the other in a longitudinal direction of the coil. An insulation is positioned between each of the plurality of coil portions and a plurality of magnetic return elements are positioned on the outer wall of the coil and are configured to extend the longitudinal direction of the coil. The insulation includes a plurality of elongated pouches filled with a pourable material.

Disclosed herein is an apparatus for manufacturing a single crystal, the apparatus comprising: a furnace comprising a furnace wall; the quartz tube is concentrically arranged in the furnace wall; the induction coil is arranged in an annular part between the quartz tube and the furnace wall; the crucible is arranged on the bottom surface of the furnace in the quartz tube; wherein the crucible comprises a wall extending upwardly from a bottom crucible surface; the refractory lining is arranged in the annular part between the quartz tube and the crucible; wherein a portion of the refractory liner has a different composition, property, geometry, or combination thereof than the remainder of the crucible.

An adjustable head system of an induction furnace and method of use thereof. The adjustable head system includes a head, an apron that operably engages with an outer shell of the induction furnace, and at least one head drive assembly that operably engages with the apron. The at least one head drive assembly is configured to automatically adjust the head along an axis angled relative to the apron upon assembly of the induction furnace, upon disassembly of the induction furnace, or during a melting operation of the induction furnace.