Workpieces are disposed between a pair of side walls in a heat treatment chamber. A centrifugal fan is disposed to face the workpieces inside the heat treatment chamber, and sucks gas from the workpiece side and generates air current. In regions at the respective side wall sides relative to an intermediate position between the pair of side walls, an air current regulation unit regulates the air current so as to restrict flows of the air current from the centrifugal fan to the respective side wall sides when a rotary blade of the centrifugal fan rotates in regions in which outer circumferential edge portions of the rotating rotary blade separate from the respective side walls, and allows the flows in regions in which the outer circumferential edge portions of the rotating rotary blade approach the respective side walls.
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
F27B 9/30 - Details, accessories or equipment specially adapted for furnaces of these types
F27B 9/10 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated heated by hot air or gas
2.
Supporting structure for induction heating coil, and induction heating device
Provided is a supporting structure for an induction heating coil and an induction heating device in which a surface of an induction heating coil is not formed of a coating film for insulation that generates a gas, and movement of the induction heating coil when the induction heating coil is energized can be suppressed. A supporting structure 4 of an induction heating device 1 includes a supporting column 20 and a plurality of restricting members 21. The supporting column 20 is disposed at an outer side in a radial direction of winding portions 13 of the induction heating coil 3, and extends in an axial direction S1. The restricting members 21 receive the induction heating coil 3 to restrict movement of the induction heating coil 3 in the axial direction S1 in an insulated state, and are supported by the supporting column 20.
An induction heating coil includes a coil section configured to heat a treatment target by induction, a power supply section configured to supply power to the coil section, and a cooling medium passage that is arranged in the power supply section and the coil section, and is configured to supply a cooling medium to the coil section. The coil section, the power supply section, and the cooling medium passage are formed using a metal additive fabrication method.
B23K 26/346 - Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups , e.g. in combination with resistance welding
Provided is a heat treatment apparatus capable of more reliably conveying a workpiece along a desired conveyance path by a simple configuration.
A heat treatment apparatus 1 includes a heating chamber 7, a cooling chamber 8 disposed adjacent to the heating chamber 7, a conveyance tray 2 to support the workpiece 100, and a first conveyance mechanism 3 to convey the conveyance tray 2 along a conveyance path B1 from the outside of the heating chamber 7 to the outside of the cooling chamber 8 through the heating chamber 7 and the cooling chamber 8.
F27B 9/26 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path on or in trucks, sleds, or containers
F27D 3/12 - Travelling or movable supports or containers for the charge
C21D 9/32 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for gear wheels, worm wheels, or the like
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races
C21D 9/34 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tyresHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for rims
F27D 3/00 - ChargingDischargingManipulation of charge
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
An induction heating coil includes a coil section configured to heat a treatment target by induction, a power supply section configured to supply power to the coil section, and a cooling medium passage that is arranged in the power supply section and the coil section, and is configured to supply a cooling medium to the coil section. The coil section, the power supply section, and the cooling medium passage are formed using a metal additive fabrication method.
B23K 26/346 - Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups , e.g. in combination with resistance welding
A fuel tank producing apparatus that allows the thickness of a resin on the surface of a tank container to be uniform and that is capable of improving the curing quality of the tank container. The fuel tank producing apparatus includes a conveyor for conveying the tank container, a plurality of heating chambers for heating the tank container during the conveyance, a cooling furnace for cooling the tank container at a position downstream of the plurality of heating chambers in the conveying direction, a gas supplier for supplying gas to the plurality of heating chambers, a plurality of nozzles for blowing the gas supplied from the gas supplier onto the surface of the tank container in the plurality of heating chambers, and a plurality of plug heaters for heating the gas between the gas supplier and the plurality of nozzles.
B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
F27B 9/10 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and chargeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity electrically heated heated by hot air or gas
B29C 70/32 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
F27B 9/12 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
A heat treatment apparatus 1 includes a coolant passage defining body 42 to define a coolant passage 48 to supply a coolant to a workpiece 100. The coolant passage defining body 42 includes an upper member 50 and a lower member 40 as a plurality of coolant passage defining members, and is configured so that, by displacing these members 49 and 50 so as to approach each other along an up-down direction Z1 crossing a conveyance direction, the coolant passage 48 is defined in a state housing the workpiece 100. In addition, the coolant passage defining body is configured so that, by displacing the members 49 and 50 described above so as to separate from each other along the up-down direction Z1, the workpiece 100 is allowed to be let into and out of the coolant passage 48 along the conveyance direction A1.
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
F27B 9/26 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path on or in trucks, sleds, or containers
F27D 3/12 - Travelling or movable supports or containers for the charge
F27B 9/12 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
F27B 9/02 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-track typeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-chamber typeCombinations of furnaces
C21D 1/00 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
Provided is a fuel tank producing apparatus capable of uniformly heating a tank container in a short period of time. The fuel tank producing apparatus includes a heat curing furnace for heating the tank container and a hot air generator for generating hot air. The heat curing furnace is internally provided with a nozzle for blowing the hot air onto the surface of the tank container, and externally provided with a rotating portion for rotating the tank container about the central axis thereof. The nozzle is located at a position displaced to the left relative to the vertical direction to the central axis of the tank container as viewed from the direction of the central axis of the tank container. The rotating portion is configured to rotate the tank container in the reverse direction of a direction in which the hot air is blown from the nozzle.
Provided are an induction heating coil supporting structure and an induction heating device, whereby an induction heating coil surface is not formed of a gas-generating coating film for insulation, and the occurrence of movement of an induction heating coil can be suppressed when the induction heating coil is energized. A supporting structure 4 of an induction heating device 1 has a supporting column 20, and a plurality of regulation members 21. The supporting column 20 is disposed radially outside of a winding section 13 of the induction heating coil 3, and extends in the axis direction S1. The regulation members 21 receive, in an insulating state, the induction heating coil 3 for the purpose of regulating movement of the induction heating coil 3 in the axis direction S1, and are supported by means of the supporting column 20.
C21D 1/18 - HardeningQuenching with or without subsequent tempering
C21D 9/32 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for gear wheels, worm wheels, or the like
Provided is a fluid supply device with which the allowable amount of rotation of each nozzle around a prescribed rotational axis can be further increased, and the load acting on piping can be further reduced. This fluid supply device 5 has: first piping 31A-31L connected to nozzles 11A-11C and 12F-12J; a rotation support unit 10 that supports the nozzles 11A-11C and 12F-12J and the first piping 31A-31L; second flexible piping 33A-33L; and a linear guide 15. One end 33a of the second flexible piping 33A-33L is configured so as to be capable of rotating in conjunction with each first piping 31A-31L around a rotational axis L1. A movable guide part 51 of the linear guide 15 is configured so as to be capable of linear displacement in accordance with deformation of each second flexible piping 33A-33L in conjunction with the rotation of each first piping 31A-31L.
Provided is a metal component manufacturing method with which it is possible to reduce heat-treatment-induced warping in a circular metal workpiece such as a ring member, and to shorten the time that the workpiece is heat-treated. A metal workpiece (100) formed in a circular shape and a heater unit (6) for radiating heat in a predetermined main radiation direction (D2) are caused to face one another. The workpiece (100) is disposed such that the inferior angle (θ1) formed by the main radiation direction (D2) and the axial direction (D1) of the workpiece (100) is 45° or less (including zero). The workpiece (100) is heated using the heater unit (6).
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races
C21D 1/00 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
C21D 9/32 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for gear wheels, worm wheels, or the like
12.
RING MEMBER MANUFACTURING METHOD, AND RING HOLDER FOR HEAT TREATMENT
Provided are a ring member manufacturing method and a ring holder for heat treatment, with which it is possible to reduce variation in heat treatment quality and to heat-treat many ring members at once when heat-treating metal ring members. A plurality of workpieces (100) are arrayed such that opening parts (100c) and end faces (100d) of the workpieces (100) are stood so as to be sideways, and such that the opening parts (100c) face a predetermined first array direction (E1) side. The positions of two workpieces (100) adjacent in the first array direction (E1) are mutually shifted in a second array direction (E2) orthogonal to the first array direction (E1).
C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for ringsHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for bearing races
C21D 1/00 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
Provided is a heat treatment apparatus capable of, with a simple configuration, conveying an object to be treated along an intended conveying path in a reliable manner. This heat treatment apparatus 1 is equipped with: a heating chamber 7; a cooling chamber 8 disposed adjacent to the heating chamber 7; a conveyance tray 2 for supporting an object to be treated 100; and a first conveying mechanism 3 for conveying the conveyance tray 2 along a conveying path B1 that runs through the heating chamber 7 and the cooling chamber 8 from the outside of the heating chamber 7 to the outside of the cooling chamber 8.
F27B 9/02 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-track typeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-chamber typeCombinations of furnaces
C21D 1/00 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
F27B 9/12 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
F27B 9/26 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path on or in trucks, sleds, or containers
F27D 3/12 - Travelling or movable supports or containers for the charge
Provided is a heat treatment apparatus that is capable of attaining a compact configuration. This heat treatment apparatus 1 has a refrigerant channel-forming body 42 for forming a refrigerant channel 48 through which a refrigerant is supplied to a to-be-treated object 100. The refrigerant channel-forming body 42 includes, as a plurality of refrigerant channel-forming members, an upper member 50 and a lower member 49, and is configured such that, when these members 49, 50 are displaced closer to each other in a vertical direction Z1 intersecting a conveying direction, the refrigerant channel 48 is formed while the to-be-treated object 100 is being held therein. The refrigerant channel-forming body 42 is also configured to allow movement of the to-be-treated object 100 along the conveying direction A1 in and out of the refrigerant channel 48 when the members 49, 50 are displaced away from to each other in the vertical direction Z1.
F27B 9/12 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
C21D 1/00 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
F27B 9/02 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-track typeFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity of multiple-chamber typeCombinations of furnaces
F27B 9/26 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path on or in trucks, sleds, or containers
F27D 3/12 - Travelling or movable supports or containers for the charge
Provided is a tank cooling device that can cool a tank with greater quickness. A tank cooling device 4 has a nozzle 40. The nozzle 40 is configured so as to supply a cooling gas for cooling a tank 100 to an outer surface of the tank 100, using a compressed gas. The tank 100 has a tank body 101 made of a synthetic resin, and an end member 102 made of a metal. The nozzle 40 supplies a gas flow to the tank body 101 and the end member 102.
A shaft of a stirring fan for a heat treatment apparatus includes a blade fixing portion for fixing a plurality of blades. The blade fixing portion has a cylindrical portion extending in a shaft direction of the shaft. A hole inside the cylindrical portion is open to one end face of the shaft. The stirring fan has a discharge portion for discharging gas inside the cylindrical portion to the outside of the blade fixing portion. The discharge portion is open to the outside of the blade fixing portion, at a position away from the one end face of the shaft.
Disclosed is a heat treatment apparatus provided with a treatment chamber, a heating source provided within the treatment chamber to emit infrared rays, and support members provided within the treatment chamber to support an object to be treated, so that the object is opposite to the heating source. The object is heat-treated by radiant heat of the infrared rays emitted from the heating source. Furthermore, the support members are formed so as to extend in parallel with one another, and the distance between the axes of the adjacent support members is defined so as to be 225-330 mm.
F27D 5/00 - Supports, screens or the like for the charge within the furnace
F27B 5/04 - Muffle furnacesRetort furnacesOther furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
F27B 5/06 - Details, accessories or equipment specially adapted for furnaces of these types
Disclosed is a thermal treatment device comprising: a treatment chamber; a heating source which is arranged in the treatment chamber and can emit an infrared ray; and a support member which is arranged in the treatment chamber and can support a material of interest so that the material faces the heating source. The material is thermally treated by a radiant heat generated by the action of the infrared ray emitted from the heating source. The support member is so arranged as to be overlaid only on a part of the material, and the material-side surface of the support member has multiple protrusions on which the material is to be supported.
Disclosed is an induction heating coil (7) configured to induction heating a pulley shaft (1) having a disk-like pulley portion (3) and a shaft portion (2) over a wide range for carburizing, wherein the configuration can be simplified. The induction heating coil (7) is equipped with a first coil portion (10) for induction heating at least the shaft portion (2), and a second coil portion (20) provided around the pulley portion (3) from the front surface (4) across the back surface (5) thereof and induction heating the pulley portion (3). The first coil portion (10) and the second coil portion (20) are integrated in series.
A heat-insulating material (10) for heat treatment ovens and an electrical heating unit (20) for heat treatment ovens which each comprises a base material (1) made of ceramic fibers comprising alumina and silica and a coating layer (2) formed by applying a coating material comprising a base ingredient comprising water and a water-soluble aluminum phosphate and a pigment comprising silicon carbide to that surface of the base material (1) which serves as an oven-wall inner side and thenmatériau drying the coating material. Since the aluminum phosphate contained in the coating layer (2) has a high affinity for the alumina as a component of the base material (1), the coating layer (2) formed on the surface of the base material (1) is adherent thereto at high bond strength. The surface of the base material (1) is hence prevented from generating dust in the oven over long.
An electrical heating unit (10) for heat treatment ovens which comprises: a base material (1) which is a ceramic fiber molding comprising alumina and silica; and a coating layer (2) formed by applying a coating material comprising a base ingredient comprising water and a water-soluble aluminum phosphate and a pigment comprising silicon carbide to that surface of the base material (1) which serves as an oven-wall inner side and then drying the coating material. Since the aluminum phosphate contained in the coating layer (2) has a high affinity for the alumina as a component of the base material (1), the coating layer (2) formed on the surface of the base material (1) is adherent thereto at high bond strength. The surface of the base material (1) is hence prevented from generating dust in the oven over long.
A furnace wall component is provided with a heat insulating block (11) having a furnace inner surface (21) and a furnace outer surface (22). A slit (31) is formed on the furnace outer surface (22). The heat insulating block (11) is provided with a high heat insulating core material (41) and a fireproof heat insulating coating material (42) covering the core material (41). The core material (42) is provided with an inner block (61) occupying the furnace inner surface (21), and a plurality of outer blocks (62) which face the inner block (61) and occupy the furnace outer surface (22). The outer blocks (62) are arranged in a direction along the furnace outer surface (22) with spaces which form the slits (31) between the blocks.
A carburization furnace has a vertical tubular furnace body (12) with closed upper end, a graphite tubular heat producing body (13) covering the inner surface of the furnace body (12), a movable bed (13) vertically movably placed so that it can open and close a lower end opening of the furnace body (12), a holding jig (14) supported by the movable bed (13) and holding pieces of work W in multiple stages, and an induction heating coil (16) placed so that it can heat the pieces of work W held by the movable bed (13) and the holding jig (14).
F27B 5/04 - Muffle furnacesRetort furnacesOther furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
patents
