67results 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.

A cold crucible for casting metals includes:a metal body having walls defining an internal volume inside which a material is received, the walls are divided into segments by a plurality of slits;an induction coil wound around said body and configured so as to melt the material;a cooling system to maintain circulation of a fluid between one or more fluid inlets and one or more fluid outletsThe cooling system includes a heat exchanger, integrated within a volume of the segments, made up of interconnected structures, fluidically connected to each other, and fluidically connected to the one or more fluid inlets and to the one or more fluid outlets so that the fluid can circulate inside the heat exchanger along one or more paths extending between the fluid inlets and the fluid outlets, with a net mass flow between the fluid inlets and outlets.

Induction Oven Inductor This description relates to an induction oven inductor (20) comprising a first tube (30), through which a cooling fluid is intended to circulate, and a second tube (40), the first tube being housed within the second tube, an internal volume (50), containing a material such as a liquid, a gas, or a porous solid, or being under vacuum, being present between at least a portion of the first tube (30) and the second tube (40). Figure for the abbreviation: Figure 3

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.

The embodiment of the invention relates to a boiler heating and scale inhibiting and removing device which comprises a single-phase inverter circuit, an electromagnetic coil and a control system. The single-phase inverter circuit is used for outputting a first pulse current and a second pulse current to the electromagnetic coil under the control of the control system; the electromagnetic coil is wound on a heating part of the boiler, is used for receiving a first pulse current to generate an eddy current on the heating part for heating, and is used for receiving a second pulse current to generate a pulse magnetic field for scale inhibition and removal of the heating part; and the control system is used for generating a first clock signal to control the single-phase inverter circuit to output a first pulse current to the electromagnetic coil and generating a second clock signal to control the single-phase inverter circuit to output a second pulse current to the electromagnetic coil. The device is accurate in temperature control, uniform in heating and capable of inhibiting and removing scale.

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 provide a method for producing a crystal and a crystal production apparatus that achieve a stable heating step.SOLUTION: A method for producing a crystal using a high-frequency heating device including a circuit including a heating coil for heating a raw material includes a melting step for a raw material to grow a crystal and a crystal growth step. At least one of the melting step and crystal growth step, the method includes the steps of: applying a high-frequency voltage and a high-frequency current generated by the high-frequency heating device to the heating coil included in the circuit; and performing heating by controlling a drive frequency of induction heating on the basis of a phase difference between the high-frequency voltage and the high-frequency current or a phase difference between a gate voltage of a transistor for determining a frequency of the high-frequency heating device and the high-frequency current when a phase difference falls below a lower limit threshold.SELECTED DRAWING: Figure 1

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.

The invention relates to a temperature control device (6) comprising: a first temperature control element (7) which progresses in a spiral manner at least in some sections; and at least one second temperature control element (8) which also progresses in a spiral manner at least in some sections, the first and the second temperature control elements (7, 8) being positioned so as to be at least in part nested within one another.

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.

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 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).

A magnetic induction furnace (1) suitable for heating, for example, solid or tubular metal blanks (5) to be extruded, made of non-ferrous metal material, having various lengths and diameters, comprising a fixed body or framework (16) in which an electric motor (21) defined by an electric stator (23) is arranged, the invention relates to a heating device (1) comprising an electric stator (2) into which an annular electric rotor (25) connected to a rotor body or tubular support (26) carrying a plurality of permanent magnets (27) arranged to define a hollow magnetic barrel in which a cavity (10) adapted to receive a non-rotating blank (5) to be heated is provided; the permanent magnets (27) of the rotor body (26) comprise main permanent magnets (27A) magnetized in the radial direction and auxiliary permanent magnets (27B) magnetized in the axial direction with respect to the rotor body (25), said magnets (27A, 27B) generating flux lines of the magnetic field (X), said flux lines pointing deeply into the interior of a cavity (10) adapted to receive the blank (5), in order to improve the induction heating of the blank relative to conventional magnetic arrangements.

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

The invention relates to a temperature control device (6), comprising a first temperature control element (7), which has a helical profile at least in sections, and comprising at least one second temperature control element (8), which also has a helical profile at least in sections, the first and the second temperature control element (7, 8) are arranged at least partially nesting one another.