The invention relates to a cooling device (100) for cooling at least one element (150, 151) passing through said device, comprising a metal block (115), having a first side and a second side, and comprising a cooling channel (130) for cyrogenic gas. The at least one element (150, 151) can be guided along the sides of the first side of the metal block (115), the cooling channel (130) is at least partially in heat conductive connection with the second side of the metal block (115), and the cooling channel (130) has an attachment (131) on a first end for the entry of cryogenic gas and an attachment on a second end for the exit of cryogenic gas. The invention also comprises a hardening device having such a cooling device (100) and a method for cooling at least one element (150, 151) passing through said device.

The present disclosure relates to a cooling device for heat treatment that performs heat treatment by cooling individually or as a whole a heated metal object. The cooling device for heat treatment includes: a chamber within which a plurality of objects is disposed; an individual cooling unit configured to individually cover the object and to spray a cooling medium onto the object; and a driving unit configured to be provided on the chamber and to move the individual cooling unit in an up and down direction.

A cooling device configured to cool an article to be processed by spraying a coolant includes a cooling chamber configured to accommodate the article to be processed, a header pipe having a connecting pipe protruding from a main body section to which a nozzle is attached and into which the coolant supplied into the main body section is supplied, and disposed in the cooling chamber, and an attachment section formed at the cooling chamber and into which the connecting pipe is inserted from an inside of the cooling chamber to an outside of the cooling chamber.

A solidifying device is for solidifying a substrate which includes a middle and two side portions. The thermostability of the middle portion is greater than that of the side portions. The solidifying device includes a housing, a heating member, a temperature control air-floating member and a conveyor. The housing defines a working space. The heating member is in the working space. The substrate has a heat receiving surface facing the heating member. The temperature control air-floating member is in the working space and below the heating member. The conveyor is for transporting the substrate into the working space and between the temperature control air-floating member and the heating member. The heating member is for providing heat to the substrate. The temperature control air-floating member is for supplying air towards the substrate to allow the substrate to float in the working space and form a high-temperature and two low-temperature areas.

An apparatus for cooling a material includes: at least one reactor, substantially tubular, which is rotatable and which includes a rotating tubular structure defining inside it a chamber for receiving and passing through the material to be cooled; and means for indirectly cooling the material passing through said chamber by means of a cooling fluid, the means for indirect cooling comprise at least one dispensing device for the cooling fluid. The at least one dispensing device includes at least two dispensing mouths defined by respective slots, with substantially longitudinal development, for the escape of the refrigerant fluid, the device being arranged with respect to the tubular structure in so that the flow outgoing from said two slits affects and laps two respective areas, distinct from each other, of the external surface of the tubular structure.

A cooling apparatus includes: cooling nozzles which are disposed around an object to be treated accommodated inside a cooling room and spray a cooling medium onto the object to be treated; a header pipe communicating with the cooling nozzles; and a cooling pump which supplies the cooling medium to the header pipe. The cooling nozzles are divided into groups. The header pipe is provided in each of the groups of the cooling nozzles.

A cooling device configured to cool an article to be processed by spraying a coolant includes a cooling chamber configured to accommodate the article to be processed, a header pipe having a connecting pipe protruding from a main body section to which a nozzle is attached and into which the coolant supplied into the main body section is supplied, and disposed in the cooling chamber, and an attachment section formed at the cooling chamber and into which the connecting pipe is inserted from an inside of the cooling chamber to an outside of the cooling chamber.

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.

A concrete products curing kiln and kiln closure apparatus comprising a pressure door shaped to cover an opening of the kiln, and an expandable chamber. The expandable chamber is positioned such that inflation of the chamber causes the chamber to expand and press on, and at least partially seal, the pressure door against a kiln door frame defining the kiln opening.