45results about "Furnaces without endless core" patented technology

The invention relates to an electromagnetic heating rotary kiln which comprises a rotary kiln body provided with at least two heating areas which are arranged side by side in the axial direction of the kiln body. The heating units are arranged in the axial direction of the kiln at intervals, each heating unit corresponds to the corresponding heating area in a one-to-one mode, and when the kiln rotates, electromagnetic fields generated by the heating units in the working state completely cover the corresponding heating areas, so that the heating areas generate heat to heat materials located in the heating areas. According to the electromagnetic heating rotary kiln, at least two sets of heating units are arranged in the axial direction of the kiln at intervals, each set of heating unit corresponds to one heating area in a one-to-one mode, and the heating units are configured in the mode that when the kiln rotates, an electromagnetic field generated in the working state completely covers the corresponding heating areas; according to the kiln, the heating area generates heat to heat materials in the heating area, so that a heating dead area is avoided when the kiln rotates, the heating uniformity of the kiln is improved, and the materials can be fully heated.

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.

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.

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.

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.

A system and method for manipulating or heating conductive material. The system comprises: a first electromagnet; a second electromagnet; the first electromagnet and the second electromagnet each comprising: a body; a first pole, the first pole proximal to a working surface; a second pole, the second pole distal to a working surface; a coil at least partially disposed around the body; a modulating controller configured to selectively apply a current to the first or the second electromagnet; the current configured to produce a time-varying flux density at the first pole; and a working volume in communication with the first pole. Manipulation of the material may be contactless and may include, but is not limited to, rotating, levitating, moving, and / or shaping the conductive material.

Embodiments of the present disclosure provide a heating system and a high-frequency power supply applied to the heating system. The heating system comprises a pot body configured to contain powder to be heated; a high-frequency power supply configured to supply an output signal with a power of not less than 5 kw and a frequency of not less than 1 MHz; and a resonant assembly configured to generate an electromagnetic field for directly heating the powder to be heated under driving of the output signal. The present disclosure provides a high-frequency signal to the resonant assembly through the high-frequency power supply, drives the resonant assembly to generate an electromagnetic field that directly acts on the powder, heats the powder while reducing the energy transmitted to the pot body, and avoids distortion or evaporation of the pot body due to heating, thereby realizing the heating of high-melting-point powder.

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.

The utility model discloses battery cell heating equipment, which relates to the technical field of battery production and manufacturing, and comprises a moving mechanism and a plurality of electromagnetic heating modules, the plurality of electromagnetic heating modules are sequentially arranged on a moving path of a battery cell, and the electromagnetic heating modules are arranged on the moving path of the battery cell. And the positions of heating areas generated by the plurality of electromagnetic heating modules on the battery cell are different. According to the technical scheme provided by the utility model, the battery cell is directly heated by utilizing the characteristic of high electromagnetic heating efficiency, so that the energy consumption is low, and the heating efficiency is high; through the plurality of electromagnetic heating modules which are arranged, the problem of non-uniform temperature distribution in the heating process can be solved, and the structure is simple and reliable.

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 heater for an evaporator includes a heating wire and a support, and the heating wire includes a tunnel part that surrounds an outer surface of a container in which an organic material is accommodated and is coiled in a cylindrical shape, a flange part that is connected to an upper end of the tunnel part and has a spiral structure in which a radius increases in a plane direction, a first straight part extending downward from a lower end of the tunnel part, and a second straight part extending downward from a distal end of the flange part, and the support includes a ring part that supports a lower surface of the flange part, and a plurality of bars extending downward form the ring part.

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.

A magnetic induction furnace (1) suitable for heating solid or tubular billets (5) of various lengths and diameters, made of non-ferrous material, for example to be extruded, comprises a fixed body or structure (16) housing an electric motor having an electric stator (23), into which an annular electric rotor (25) is inserted, coupled to a rotor body or tubular support (26) carrying a plurality of permanent magnets (27) arranged to form a hollow magnetic cylinder with a hollow bore (10) suitable for housing the non-rotating billet (5) to be heated. The permanent magnets (27) of the rotor body (26) comprise primary permanent magnets (27A) magnetized radially relative to the annular electric rotor (25) and secondary permanent magnets (27B) magnetized axially, the primary permanent magnets (27A) and secondary permanent magnets (27B) generating a magnetic field flux (X) directed toward the interior of the hollow bore (10) adapted to receive the billet (5) to improve induced heat generation compared to conventional magnetic structures.

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.

A ladle-less vacuum casting furnace can include a melt pour cup configured to directly melt a charge, a susceptor configured to heat the melt pour cup, and a mold cavity, formed by additive manufacturing, configured to receive the melted charge, where the vacuum casting furnace does not have a ladle. The susceptor can have a barrel part and at least one dome shaped part. The at least one mold cavity is lowered out of the furnace with the assistance of a nickel isolation shutter with a ceramic shield. A method casting in a ladle-less vacuum casting furnace includes placing a metal charge in the melt pour cup, heating the metal charge with the susceptor to form a melt, and pouring the melt into the at least one mold cavity, the pouring being performed without a ladle, and lowering the mold cavity out of the furnace to solidify the workpiece.

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.

The invention relates to a method for melting and treating, in particular mixing, electrically conductive material with high gangue and slag-formers, in particular sponge iron using at least one induction crucible furnace (1) and by coupling at least one alternating-current magnetic field into the material by means of at least one first and at least one second coil arrangement (4,5), which surround a crucible (2) of the induction crucible furnace (1) with a crucible volume (3) for receiving the material, wherein the method comprises melting and stirring the molten material during simultaneous operation of the first and the second coil arrangements (4, 5), wherein the phase angle of the alternating voltage of the first and / or second coil arrangements (4, 5), in particular during operation of the induction crucible furnace (1), is set such that the phase angle of the alternating voltage of the first coil arrangement (4) is shifted with respect to the phase angle of the alternating voltage of the second coil arrangement (5) at least temporarily during a operation. The invention further relates to an induction crucible furnace (1) for carrying out the method.