24results about "Endless core furnaces" patented technology

A microwave process and apparatus for processing ore, including a supply of reaction gases from Unipolar electrolysis, which provides an efficient and economical source of reaction gases The process and apparatus includes a reaction gas microwave pre-heat zone to pre-heat the reaction gases to a first temperature prior to input into a main reactor body where the temperature is raised to a higher second temperature to melt the ore and process it into desirable products, such as green steel in an energy efficient manner with reduced emissions.

To provide a heating-melting device that can produce fine metal powder stably and efficiently.SOLUTION: A heating-melting device 100 has a cylindrical body 31 that has a hollow shape having openings 31 at both ends and is formed of a conductive material, an induction coil 32 wound around the outer face of the cylindrical body 31, and a third voltage supply circuit 44 for feeding an AC voltage to pass a high-frequency current through the induction coil 32. The cylindrical body 31 is disposed between a crucible 21 and a storage part 15 with the openings pointing up and down. The cylindrical body 31 generates ultrasound by a current passed through the induction coil 32, so that the dissolved raw material passing through the cylindrical body 31 is powderized.SELECTED DRAWING: Figure 1

The utility model belongs to the technical field of induction cookers. The induction cooker comprises a bottom shell, a partition plate, a coil panel and a panel, the bottom shell is provided with a shell cavity with an opening in the upper side. The partition plate is arranged in the bottom shell, the shell cavity is divided into a coil panel placement area and an electric control area which are arranged up and down, an electric control board and a cooling fan are arranged in the electric control area, and cooling holes are formed in the side portion, located in the electric control area, of the bottom shell; the at least one coil panel is installed in the coil panel placement area and comprises a support, a magnetic conductive structure arranged on the support and a heating coil, and the heating coil is a single-strand flat aluminum wire coil; and the panel covers the opening of the shell cavity. A heating coil of the coil panel adopts a single-strand flat aluminum coil, so that the coil panel has a larger sectional area and more uniform current distribution, the contact resistance in the coil panel is greatly reduced, and the local overheating phenomenon caused by resistance heating is reduced. Meanwhile, due to the shape design of the flat aluminum wire, the overall strength and stability of the wire coil are better improved in the winding process of the coil.

The invention discloses a preparation method of a melt cold crucible wall. The preparation method comprises the following steps: determining to-be-tested melt material powder contained in a test of a melt cold crucible; selecting components of melt material powder used for preparing the melt cold crucible wall according to the components of the to-be-detected melt material powder; preparing a pasty mixture based on the melt material powder; the pasty mixture is smeared in a gap between adjacent cold crucible cooling pipes, and a cold crucible wall is formed; a heating pipe is fixed in the wall of the cold crucible; and the heating pipe is heated, so that the wall of the cold crucible is dried. The method can greatly reduce the influence of partial melting of the cold crucible wall on the test, and has the advantages of low economic cost, simplicity and convenience in operation, high reliability and the like compared with a traditional cold crucible wall preparation method.

A microwave process and apparatus for processing ore, including a supply of reaction gases from Unipolar electrolysis, which provides an efficient and economical source of reaction gases The process and apparatus includes a reaction gas microwave pre-heat zone to pre-heat the reaction gases to a first temperature prior to input into a main reactor body where the temperature is raised to a higher second temperature to melt the ore and process it into desirable products, such as green steel in an energy efficient manner with reduced emissions.

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

A description is given of an extrusion head for the additive manufacture of a moulded body comprising a tubular body (5) of a ferromagnetic material, which opens out in an extrusion die (4), on the feed side is held in a carrier (2), and forms an extrusion channel (3), and also comprising at least one induction coil (6), which encloses the tubular body (5) between the carrier (2) and the extrusion die (4). To make advantageous melting conditions possible, it is proposed that the tubular body (5) has for the induced magnetic field a guide flange (7), which is arranged between the induction coil (6) and the carrier (2) in the axial direction and protrudes radially outwards.

The present invention relates to a continuous casting furnace (10) for melting non-ferrous metals, in particular for jewellery making, comprising a supporting frame (11) on which there are arranged a melting and casting head (12), a pulling unit (13) for the extraction of a profile (P) descending from said melting and casting head (12), and a cabinet (14), said cabinet (14) containing an electric generator unit (15), a hydraulic cooling unit (16), an inert gas circuit (17), and comprising an electronic control unit (U). The pulling unit (13) comprises two pairs of shaped drive rollers, respectively a first pair of upper shaped drive rollers (71, 72) and a second pair of lower shaped drive rollers (73, 74), a first upper shaped roller (71) and a first lower shaped roller (73) being mounted on a first horizontally moving slide (75), while the second upper shaped roller (72) and the second lower shaper roller (74) are mounted on a second horizontally moving slide (76), said first slide (75) and second slide (76) being slidable on respective horizontal guides (81, 82) towards and away from each other.

The present invention relates to a continuous casting furnace structure (10) for melting non-ferrous metals, in particular for jewellery making, comprising a supporting frame (11) on which there are arranged a melting and casting head (12), a pulling unit (13) for the extraction of a profile descending from said melting and casting head (12), and a cabinet (14), said cabinet (14) containing an electric generator unit (15), a hydraulic cooling unit (16), an inert gas circuit (17) and an electronic control unit. In particular, the head (12) is removably mounted on a support shelf (31) of said supporting frame (11).

The present invention relates to a continuous casting furnace (10) for melting non-ferrous metals, in particular for jewellery making, comprising a supporting frame (11) on which there are arranged a melting and casting head (12), a pulling unit (13) for the extraction of a profile (P) descending from said melting and casting head (12), and a cabinet (14), said cabinet (14) containing an electric generator unit (15), a hydraulic cooling unit (16), an inert gas circuit (17), and comprising an electronic control unit (U). The pulling unit (13) comprises two pairs of shaped drive rollers, respectively a first pair of upper shaped drive rollers (71, 72) and a second pair of lower shaped drive rollers (73, 74), a first upper shaped roller (71) and a first lower shaped roller (73) being mounted on a first horizontally moving slide (75), while the second upper shaped roller (72) and the second lower shaper roller (74) are mounted on a second horizontally moving slide (76), said first slide (75) and second slide (76) being slidable on respective horizontal guides (81, 82) towards and away from each other.

This invention provides a cooking device, relating to the field of household appliance technology. The cooking device includes a control panel; a coil for generating an alternating magnetic field; and a non-magnetic conductor, which is disposed on the side of the control panel facing the coil, or on the side of the control panel away from the coil, and is configured to generate heat in the alternating magnetic field. The cooking device provided by this invention is applicable to cookware made of different materials, exhibiting high applicability.

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.

The present invention relates to a continuous casting furnace structure (10) for melting non-ferrous metals, in particular for jewellery making, comprising a supporting frame (11) on which there are arranged a melting and casting head (12), a pulling unit (13) for the extraction of a profile descending from said melting and casting head (12), and a cabinet (14), said cabinet (14) containing an electric generator unit (15), a hydraulic cooling unit (16), an inert gas circuit (17) and an electronic control unit. In particular, the head (12) is removably mounted on a support shelf (31) of said supporting frame (11).

The present invention relates to a continuous casting furnace (10) for melting non-ferrous metals, in particular for jewellery making, comprising a supporting frame (11) on which there are arranged a melting and casting head (12), a pulling unit (13) for the extraction of a profile (P) descending from said melting and casting head (12), and a cabinet (14), said cabinet (14) containing an electric generator unit (15), a hydraulic cooling unit (16), an inert gas circuit (17), and comprising an electronic control unit (U). The pulling unit (13) comprises two pairs of shaped drive rollers, respectively a first pair of upper shaped drive rollers (71, 72) and a second pair of lower shaped drive rollers (73, 74), a first upper shaped roller (71) and a first lower shaped roller (73) being mounted on a first horizontally moving slide (75), while the second upper shaped roller (72) and the second lower shaper roller (74) are mounted on a second horizontally moving slide (76), said first slide (75) and second slide (76) being slidable on respective horizontal guides (81, 82) towards and away from each other.

A low-voltage large-current metal annealing furnace comprises a shell, a heat preservation and insulation material, an inner container and at least two sets of electric heating components, the electric heating components are arranged in the shell, the heat preservation and insulation material or the inner container, the shell is cylindrical, the inner container is surrounded by the at least two sets of electric heating components, and the electric heating components are arranged in the shell, the heat preservation and insulation material or the inner container. The electric heating assemblies are overlapped layer by layer and are connected through the supporting pieces; the electric heating assembly is a parallel circuit and is formed by connecting a plurality of current shunting pieces end to end, the two ends of the electric heating assembly are connected through connecting pieces to form a closed loop, the connecting pieces are made of insulating materials, and each current shunting piece comprises an inlet end, a current shunting section and an outlet end. Compared with the prior art, the heating method is more energy-saving, higher in heat efficiency and shorter in heating time. In addition, the ductility of the heated metal is higher than that of the prior art.

A microwave process and apparatus for treating ore comprising a supply of reaction gas from unipolar electrolysis that provides an effective and economical source of reaction gas. The method and apparatus include a reaction gas microwave preheating zone for preheating a reaction gas to a first temperature before it is input into a main reactor body; in the main reactor main body, the temperature is raised to a higher second temperature, so that the ore is melted and treated into the required product in an energy-saving and emission-reducing manner, such as green steel.

The present invention relates to an EIGA coil (10) for partially fusing an electrode (40). The EIGA coil (10) includes a plurality of windings (12A, 12B, 12C) arranged coaxially about a central axis (M), with the windings (12A, 12B, 12C) spaced apart from one another in the axial direction. Each of the plurality of windings (12A, 12B, 12C) is formed in the shape of a ring interrupted by a gap (14A, 14B, 14C), is equidistant from the central axis (M), and extends in a plane perpendicular to the central axis (M). Adjacent windings (12A, 12B; 12B, 12C) of the plurality of windings (12A, 12B, 12C) are connected to one another via respective connection portions (20AB, 20BC; 120AB, 120BC).

This invention provides a high-frequency excitation heating device and a method for manufacturing iron cores for stationary equipment that are suitable for the practical application of annealing by high-frequency excitation. [Solution] A high-frequency excitation heating device comprising a first core support member disposed on the inside of the core, a second core support member disposed on the outside of the core, and a fastening member that fastens the first and second core support members together while insulating them, wherein the first and second core support members are non-annular, and a high-frequency induction coil disposed around the first and second core support members and the core, a power supply that supplies AC power, a function generator that generates AC, and a program regulator that generates control signals to command the function generator, a temperature sensor in either the first or second core support member, the measured value of the temperature sensor being input to the program regulator, and the program regulator providing feedback control of the AC power according to the measured value of the temperature sensor.

The present invention relates to a continuous casting furnace structure (10) for melting non-ferrous metals, in particular for jewellery making, comprising a supporting frame (11) on which there are arranged a melting and casting head (12), a pulling unit (13) for the extraction of a profile descending from said melting and casting head (12), and a cabinet (14), said cabinet (14) containing an electric generator unit (15), a hydraulic cooling unit (16), an inert gas circuit (17) and an electronic control unit. In particular, the head (12) is removably mounted on a support shelf (31) of said supporting frame (11).

There are provided a magnetic field generation device and a molten metal stirring system capable of generating a magnetic field having sufficient strength while excelling in heat dissipation and generating a small amount of heat. A magnetic field generation device 1 according to an embodiment includes a plurality of iron cores 11 arranged at gaps from each other, coils 21 and 22 for energizing an R-phase current, coils 23 and 24 for energizing an S-phase current, and coils 25 and 26 for energizing a T-phase current. The magnetic poles 11a to 11f of each iron core 11 are arranged along a predetermined direction to constitute first to sixth magnetic pole groups, respectively. The coils 21 to 26 are wound around each of the first to sixth magnetic pole groups.