A method of induction hardening a bearing ring includes positioning first and second inductors at a start zone on the bearing ring and a preheat inductor in an end zone on the bearing ring spaced one hundred eighty degrees from the start zone. A first traversing element moves the first inductor circumferentially from the start zone toward the end zone along a first half of the bearing ring circumference while the first inductor heats the bearing ring, and a second traversing element moves the second inductor circumferentially from the start zone toward the end zone along a second half of the bearing ring circumference while the second inductor heats the bearing ring. A third traversing element moves the preheat inductor circumferentially within the end zone so as to traverse a portion of each half of the bearing ring circumference while the preheat inductor heats the end zone.

A method of induction hardening a bearing ring includes positioning first and second inductors at a start zone on the bearing ring and a preheat inductor in an end zone on the bearing ring spaced one hundred eighty degrees from the start zone. A first traversing element moves the first inductor circumferentially from the start zone toward the end zone along a first half of the bearing ring circumference while the first inductor heats the bearing ring, and a second traversing element moves the second inductor circumferentially from the start zone toward the end zone along a second half of the bearing ring circumference while the second inductor heats the bearing ring. A third traversing element moves the preheat inductor circumferentially within the end zone so as to traverse a portion of each half of the bearing ring circumference while the preheat inductor heats the end zone.

The present disclosure relates to a system for manufacturing a hybrid component including a first thermal supplier configured to heat a steel plate, a rolling roll for undercut configured to pressurize the steel plate heated by the first thermal supplier, and to form an undercut on one surface of the steel plate, a first molding roll configured to pressurize the steel plate formed with the undercut to mold the steel plate in a shape of a component to be manufactured, a composite material feeder configured to supply a composite material tape to be seated on one surface of the steel plate formed with the undercut through the first molding roll, and a composite material pressurization roll configured to pressurize the steel plate on which the composite material tape is seated.

A method and apparatus for treating a workpiece such as a mold grid includes moving the workpiece laterally along a conveyor assembly into a furnace for heating in a carbon-rich atmosphere to form a heated workpiece. The heated workpiece is then received from the furnace onto the conveyor assembly in an enclosed vestibule whereupon it is clamped under pressure between an overhead mechanical press and the conveyor assembly to form a clamped assembly. The clamped assembly, including a portion of the conveyor, is then lowered into a quenching bath via an elevator assembly until the heated workpiece is quenched, whereupon the clamped assembly is raised out of the bath and the clamping force released. This clamping during quenching acts to maintain the workpiece in a planar orientation while reducing warpage during the quenching process.

Provided is a method for producing a Ni- or Ti-based alloy product, the method capable of reliably locally cooling and effectively cooling. The method includes the steps: heating and holding a hot working material of a Ni- or Ti-based alloy after hot forging or hot ring rolling at a solution treatment temperature to obtain a material held in a heated state, and cooling the material held in a heated state to obtain a solution-treated material. The cooling step includes carrying out local cooling by contacting a cooling member with a part of a surface of the material held in a heated state.

This cooling device includes a first cooling mechanism and a second cooling mechanism. The first cooling mechanism includes a first nozzle disposed to be aligned with a heating coil on a downstream side and whose injection direction of a refrigerant is a first injection direction, a second nozzle disposed to be aligned with the first nozzle on a downstream side and whose injection direction of the refrigerant is a second injection direction intersecting the first injection direction, a first valve selectively switching a supply destination of the refrigerant between one and the other of the first nozzle and the second nozzle, and a first control unit controlling the first valve. The second cooling mechanism includes a third nozzle disposed on a side opposite to the first nozzle and the second nozzle with the extension line sandwiched therebetween and whose injection direction of the refrigerant is a third injection direction forming an angle of 20 degrees or more and 70 degrees or less with respect to a bent inner circumferential surface of a bent portion.

Provided is a method for producing a Ni- or Ti-based alloy product, the method capable of locally increasing the cooling rate and effectively cooling. The method includes the steps: preliminarily processing a hot working material of a Ni- or Ti-based alloy after hot working into a predetermined shape; heating and holding the material at a solution treatment temperature to obtain a material held in a heated state; and cooling the material held in a heated state to obtain a solution-treated material. The cooling step includes placing a flow path-forming member having a space for forming a flow path for a fluid on a surface of the material held in a heated state to form a fluid flow path defined by the surface of the material held in a heated state and an inner surface of the space of the flow path-forming member; and allowing a fluid to flow in the fluid flow path so that the fluid in the flow path locally cools a part of the surface of the material held in a heated state.

An orifice-type quenching nozzle for an induction hardening system includes a body having a plurality of nozzle orifices configured to apply a quenching fluid onto a to-be-quenched workpiece. The nozzle orifices are arranged on at least one surface of the body in rows and in columns, and the plurality of nozzle orifices are positioned such that each nozzle orifice is located a same distance from each directly adjacent nozzle orifice.

An orifice-type quenching nozzle for an induction hardening system includes a body having a plurality of nozzle orifices configured to apply a quenching fluid onto a to-be-quenched workpiece. The nozzle orifices are arranged on at least one surface of the body in rows and in columns, and the plurality of nozzle orifices are positioned such that each nozzle orifice is located a same distance from each directly adjacent nozzle orifice.

The present description concerns a gas cooling cell, comprising: a chamber; at least one opening in the chamber, of access to a treatment space internal to the chamber; at least one door for closing the opening; and a system (4), internal to the chamber, comprising at least one wall (42) mobile between a first position where this wall forms a screen between the opening and the treatment space, and a second position where said wall clears the access to the treatment space from the opening.