A vacuum heat treatment apparatus according to the embodiment comprises a chamber; a thermal insulator in the chamber; a reaction container in the thermal insulator; a heating member between the reaction container and the the thermal insulator for heating the reaction container; and a temperature measuring member in or on a surface of the reaction container, wherein the temperature measuring member comprises a thermocouple and a protective tube surrounding the thermocouple, and the protective tube comprises tungsten (W), tantalum (Ta), or silicon carbide (SiC).

A vacuum heat treatment apparatus according to the embodiment comprises a chamber; a thermal insulator in the chamber; a reaction container in the thermal insulator; a heating member between the reaction container and the the thermal insulator for heating the reaction container; and a temperature measuring member in or on a surface of the reaction container, wherein the temperature measuring member comprises a thermocouple and a protective tube surrounding the thermocouple, and the protective tube comprises tungsten (W), tantalum (Ta), or silicon carbide (SiC).

The invention relates to an apparatus for passing at least one fiber tow multiple times through an oxidation furnace by means of godets, the at least one fiber tow being diverted via at least one godet that is arranged offset. According to the invention, the godet comprises a shaft on which at least two single rollers are arranged to be mounted, each single roller being arranged so as to be rotatable on the shaft.

The invention relates to an apparatus for passing at least one fiber tow multiple times through an oxidation furnace by means of godets, the at least one fiber tow being diverted via at least one godet that is arranged offset. According to the invention, the godet comprises a shaft on which at least two single rollers are arranged to be mounted, each single roller being arranged so as to be rotatable on the shaft.

A multi-chamber heat treatment device according to the present disclosure in which heating chambers are disposed with an intermediate transport chamber interposed therebetween in a top view, and a treatment object is stored in a heating chamber via the intermediate transport chamber, wherein the multi-chamber heat treatment device includes a gas cooling chamber which cools the treatment object using a cooling gas; and a cooling gas circulation device which includes an gas inlet and a gas outlet.

A multi-chamber heat treatment device according to the present disclosure in which heating chambers are disposed with an intermediate transport chamber interposed therebetween in a top view, and a treatment object is stored in a heating chamber via the intermediate transport chamber, wherein the multi-chamber heat treatment device includes a gas cooling chamber which cools the treatment object using a cooling gas; and a cooling gas circulation device which includes an gas inlet and a gas outlet.

A brazing furnace (1) includes a preheating chamber (2) and a brazing chamber (3). The preheating chamber (2) includes: a vacuum pump (21) for reducing the pressure inside the preheating chamber (2) while a material to be processed (100) is housed therein; a preheating apparatus (22), which preheats the material to be processed (100) in a reduced-pressure atmosphere; and a gas introducing apparatus (23), which introduces inert gas into the preheating chamber (2) to restore the pressure inside the preheating chamber (2) after the preheating. The brazing chamber (3) includes: a gas-replacing apparatus (31), which introduces inert gas into the brazing chamber (3); and a main heating apparatus (32), which heats the material to be processed (100) to a brazing temperature while it is housed in the brazing chamber (3).

Embodiments of the disclosure provide a system including: an enclosure having an interior sized to enclose and the workpiece and form a vacuum and pressurized atmosphere within the interior. A plurality of thermal applicators may be in thermal communication with first and second portions of the interior. First and second thermal applicators may independently heat and cool the first and second portions of the interior. The first thermal applicator may apply a first thermal treatment to a first portion of the workpiece in the first portion of the interior. A second thermal applicator may apply a second thermal treatment to a second portion of the workpiece in the second portion of the interior independently of the first thermal treatment.

An apparatus for separating and recovering the components of an alloy, particularly a noble alloy, including a high vacuum chamber housing at least one crucible for the alloy to be separated; at least one heating element arranged, during use, around the crucible; at least one condensation device, which faces, during use, an upper mouth of the crucible. The particularity of the present invention resides in that the condensation device includes at least one cold element and at least one deflector that is adapted to divert the flow of the aeriform substances derived from the melting and evaporation of the alloy toward the cold element. The invention also relates to a process for separating and recovering the components of an alloy, particularly a noble alloy.

An apparatus for separating and recovering the components of an alloy, particularly a noble alloy, including a high vacuum chamber housing at least one crucible for the alloy to be separated; at least one heating element arranged, during use, around the crucible; at least one condensation device, which faces, during use, an upper mouth of the crucible. The particularity of the present invention resides in that the condensation device includes at least one cold element and at least one deflector that is adapted to divert the flow of the aeriform substances derived from the melting and evaporation of the alloy toward the cold element. The invention also relates to a process for separating and recovering the components of an alloy, particularly a noble alloy.