A pressing arrangement (100) is disclosed. The pressing arrangement (100) comprises a pressure vessel (2) and a furnace chamber (18) arranged within the pressure vessel (2). The furnace chamber (18) is at least partly enclosed by a heat insulated casing (6, 5 7, 8) and arranged so that pressure medium can enter and exit the furnace chamber (18). The pressing arrangement (100) comprises a plurality of pressure medium guiding passages (10, 11) in fluid communication with the furnace chamber (18) and arranged to form an outer cooling loop within the pressure vessel (2). The pressing arrangement (100) comprises a heat absorbing element (20) which is arranged within the pressure vessel (2) and which is 10 configured to absorb heat from pressure medium having exited the furnace chamber (18).

A method for hot isostatic pressing includes the steps of providing or obtaining an article of manufacture, which optionally includes a copper or nickel alloy, disposing the article of manufacture in a shroud, the shroud defining an enclosed volume wherein the article of manufacture is disposed, the shroud being configured as a multi-piece joined structure to retard gaseous mass transport from outside the shroud to inside the enclosed volume, disposing the shroud in a containment vessel of a hot isostatic pressing apparatus and disposing a getter material in the shroud and/or in the containment vessel, and introducing an inert gas at an elevated temperature and pressure into the containment vessel for hot isostatic pressing.

Provided is a hot isostatic pressing (HIP) device that improves the heat uniformity of a hot zone during a pressurization process of an object being processed. This HIP device (100) is provided with: an outer casing (4) having an open outer opening part (4H); an inner casing (5) having an open inn opening part (5H); a heat-insulating body (R) disposed between the outer casing (4) and the inner casing (5); a gas flow generation part (30); and a plurality of first gas conduits (12), A hot zone (P) in which a pressurization process is performed is formed inside the inner casing (5). During the pressurization process, a low-temperature pressurization medium gas which has been generated by the gas flow generation part (30) and has passed through the first gas conduits (12) moves upward in an inner flow passage (L1) between the casings, and then flows into the hot zone (P) from the inner opening part (5H), Even when the pressurization medium gas leaks from the vicinity of a bottom all part (20) and flows into the hot zone (P), the heat uniformity of the hot zone (P) is maintained.

To provide a hydrostatic pressure type high temperature and high-pressure treatment apparatus by a wet method and a dry method for efficiently mass-producing high-quality and large-sized synthetic diamond. In the treatment apparatus, a high-pressure cell prevented from the intrusion of a pressure medium into the inside is housed in a high-pressure container, and hydrostatic pressurization is performed by the liquid pressure medium. At least one pressurizing mechanism 10 for the pressure medium 6 is provided, and a pressure medium having a known compressibility and volume change rate is used. A heating mechanism for the pressure medium and a measuring means for the average temperature in the vertical direction are provided, the pressure medium is heated to a predetermined temperature to be thermally expanded, treatment is continued while maintaining the pressure even after the pressurizing mechanism is stopped, and two or more high-pressure cells 9 can be simultaneously subjected to high-temperature and high-pressure treatment at uniform pressure without directionality.

A method in a pressing arrangement is disclosed. The pressing arrangement comprises a pressure vessel arranged to hold pressure medium therein during use of the pressing arrangement, the pressure vessel including a treatment region therein, wherein the treatment region is arranged to accommodate at least one article. The pressing arrangement is arranged so that pressure medium can enter and exit the treatment region. The pressing arrangement comprises at least one controllable pressure medium supplying device configured to transport pressure medium during a cooling phase from another region in the pressing arrangement to the treatment region, wherein the temperature of the pressure medium in the other region is lower than the temperature of the pressure medium in the treatment region during at least part of the cooling phase. At least one value indicative of at least one temperature in the pressure vessel is obtained. Based on the at least one value indicative of at least one temperature in the pressure vessel, at least one operational parameter of the at least one controllable pressure medium supplying device is adjusted, whereby the pressure medium supplying rate of the at least one pressure medium supplying device is adjusted. A pressing arrangement in which the method may be carried out is also disclosed.

A pressing arrangement for treatment of articles by hot pressing includes a pressure vessel including a furnace chamber and a furnace to hold the articles. A fan circulates a pressure medium within the furnace chamber, and enhances an inner convection loop at a load compartment. The inner convection loop pressure medium has an upward flow through the load compartment, and a downward flow along a peripheral portion of the furnace chamber. A flow generator generates a flow of pressure medium into the load compartment downstream the fan to enhance the inner convection loop. The flow is generated by transporting the pressure medium upwards from a space below a bottom insulating portion and above a bottom end portion, and by injecting the pressure medium into the load compartment downstream the fan to enhance the inner convection loop.

An apparatus and a method for treating an object manufactured from a material having a defined melting temperature, by subjecting the object to hot isostatic pressing to reduce porosity and increase a density thereof. The method comprises arranging the object in a pressure chamber interior cavity, submerged in a liquid partially filling the cavity, heating the liquid to a below melting temperature, pressurizing the liquid by pressurizing gas above a liquid surface in the cavity, then moving the object out of the liquid, but still within the cavity, subsequently heating the liquid to an above melting temperature, and resubmerging the object in the liquid. Subsequently, the object is withdrawn from the liquid and moved above the liquid. The apparatus comprises the pressure chamber, a movable object support in the cavity, a liquid heater, and a gas inlet and outlet selectively introducing gas into and venting gas from the cavity.

There is provided an arrangement and method for handling a load for isostatic pressure treatment in a high-pressure arrangement. The arrangement comprises a transportation unit arranged in a first space, wherein the transportation unit is configured for horizontal transportation of a pressure vessel comprising the load into the high-pressure arrangement before pressure treatment of the load, and out of the high-pressure arrangement after pressure treatment of the load, respectively. The arrangement further comprises an elevator unit vertically operable between the first space and a second space provided below the first space, wherein the elevator unit is configured to lift the load from the second space into the pressure vessel before pressure treatment of the load, and to lower the load from the pressure vessel to the second space after pressure treatment of the load, respectively.

The present disclosure provides a method for manufacturing an aluminum alloy member capable of suppressing deterioration in ductility thereof. In the method for manufacturing an aluminum alloy member, an aluminum alloy casting material that contains 2.0 to 5.5 mass % of Cu, and 4.0 to 7.0 mass % of Si in which a content of Mg is 0.5 mass % or less, a content of Zn is 1.0 mass % or less, a content of Fe is 1.0 mass % or less, a content of Mn is 0.5 mass % or less and the balance is made of Al and inevitable impurities is used. The method for manufacturing an aluminum alloy member includes a heating and holding step of heating and holding the aluminum alloy casting material within a solid-liquid coexisting temperature region; and a quenching step of rapidly cooling the aluminum ally casting material after performing the heating and holding step.

A method involves heating fiber-reinforced semi-finished products of differing wall thickness to a required temperature above the glass transition range or the matrix melting temperature of a plastic matrix of the semi-finished product to be heated. In a first step, the semi-finished product to be heated is heated by thermal conduction to below the glass transition range or the matrix melting temperature. In a further step, the remaining amount of heat for reaching the required temperature above the glass transition range or the matrix melting temperature is introduced by thermal radiation or thermal convection.