A system for treatment of a first material with at least one hazardous material, the system comprising a manufacturing room configured according to safety standards to hold at least one hazardous material. The manufacturing room is configured for the treatment of the first material using the at least one hazardous material as a solvent. A holding room is not configured according to the safety standards and is separated from the manufacturing room by a wall common to the manufacturing room and the holding room. A vacuum oven is embedded in the wall, and has a rear portion in the manufacturing room and a front portion in the holding room. The front door of the oven is configured to be opened from the holding room for removing the first material from the inner cavity following removal of the at least one hazardous material from the first material and from the inner cavity and no electrical components of the vacuum oven extend into the manufacturing room.

A system for treatment of a first material with at least one hazardous material, the system comprising a manufacturing room configured according to safety standards to hold at least one hazardous material. The manufacturing room is configured for the treatment of the first material using the at least one hazardous material as a solvent. A holding room is not configured according to the safety standards and is separated from the manufacturing room by a wall common to the manufacturing room and the holding room. A vacuum oven is embedded in the wall, and has a rear portion in the manufacturing room and a front portion in the holding room. The front door of the oven is configured to be opened from the holding room for removing the first material from the inner cavity following removal of the at least one hazardous material from the first material and from the inner cavity and no electrical components of the vacuum oven extend into the manufacturing room.

A heating chamber (1) for a heating furnace is proposed, with which electrothermal vaporization of impurities from samples can be effected in order to be able to then analyze them spectrometrically. The heating chamber has a wall (3), a sample reception area (5), a nozzle area (7) and two electrical connection areas (9, 11). The heating chamber (1) is specially configured such that an electric current flows through the wall (3) in such a way that a heating capacity caused by it is higher in the nozzle area (7) than in the sample reception area (5). For example, the electrical connection areas (9, 11) may be arranged in a radial direction remoter from the longitudinal axis (8) than a part of the wall (3) surrounding the nozzle area (7), and the heating chamber (1) may be configured, for example by means of a locally constricted area (13), in such a way that the current between the two electrical connection areas (9, 11) is predominantly conducted radially inwards towards the part of the wall (3) surrounding the nozzle area (7). Advantageous heat distribution in the heating chamber (1) achievable thereby may have a positive effect on the analysis of sample impurities.

A furnace for a dental prosthesis or a partial dental prosthesis, in particular for dental ceramic, comprising a firing chamber which can be heated and in particular can also be evacuated, a control device for controlling the operation of the furnace on the basis of a firing program, which is based on a set of parameter values, and an operator control unit, which is assigned to the control device and is designed to display a representation of the firing program in the form of a firing process curve, wherein the operator control unit can be used in a simplified operating mode in which it displays together with the firing process curve at least one operator control area for adjusting a selected parameter value of the set of parameter values that relates to a prescribed program phase of the firing program, wherein the at least one operator control area is permanently arranged in the area of the displayed firing process curve that corresponds to the prescribed program phase.

A furnace for a dental prosthesis or a partial dental prosthesis, in particular for dental ceramic, comprising a firing chamber which can be heated and in particular can also be evacuated, a control device for controlling the operation of the furnace on the basis of a firing program, which is based on a set of parameter values, and an operator control unit, which is assigned to the control device and is designed to display a representation of the firing program in the form of a firing process curve, wherein the operator control unit can be used in a simplified operating mode in which it displays together with the firing process curve at least one operator control area for adjusting a selected parameter value of the set of parameter values that relates to a prescribed program phase of the firing program, wherein the at least one operator control area is permanently arranged in the area of the displayed firing process curve that corresponds to the prescribed program phase.

A sample encapsulation system includes a fixture, a base, a chamber having an inlet and a chamber housing. The housing has inner and outer housings. The chamber is mounted in the inner housing. The base, chamber and housing are affixed to one another and movable in the fixture. A cap has a first ram operably mounted thereto for engaging the chamber inlet. A second ram in the chamber opposite the inlet moves toward and away from the first ram. A heating assembly is positioned in the inner housing and a cooling assembly including a cooling jacket defined in part by the inner and outer housings includes a manifold. The chamber, housing and base are movable toward and away from the cap for engaging and disengaging the first ram with the chamber during and after the encapsulation cycle, respectively. The cooling system includes a vacuum breaker to self-drain following cooling.

A sample encapsulation system includes a fixture, a base, a chamber having an inlet and a chamber housing. The housing has inner and outer housings. The chamber is mounted in the inner housing. The base, chamber and housing are affixed to one another and movable in the fixture. A cap has a first ram operably mounted thereto for engaging the chamber inlet. A second ram in the chamber opposite the inlet moves toward and away from the first ram. A heating assembly is positioned in the inner housing and a cooling assembly including a cooling jacket defined in part by the inner and outer housings includes a manifold. The chamber, housing and base are movable toward and away from the cap for engaging and disengaging the first ram with the chamber during and after the encapsulation cycle, respectively. The cooling system includes a vacuum breaker to self-drain following cooling.

A double insulating wall structure heating furnace capable of preventing its inner pipe whose strength has decreased due to high-temperature heating from being damaged. A double insulating wall structure heating furnace 1 includes an outer pipe 2 and an inner pipe 3 disposed inside the outer pipe 2, in which a sealed space 8 formed between the outer and inner pipes 2 and 3 is depressurized and a heating space 13 formed inside the inner pipe 3 is heated, and in which a tubular reinforcing member 6 is disposed so as to cover an outer circumference of the inner pipe 3, the tubular reinforcing member being formed of a material having a higher heat resistance and a higher strength than those of the material of the inner pipe 3.

A double insulating wall structure heating furnace capable of preventing its inner pipe whose strength has decreased due to high-temperature heating from being damaged. A double insulating wall structure heating furnace 1 includes an outer pipe 2 and an inner pipe 3 disposed inside the outer pipe 2, in which a sealed space 8 formed between the outer and inner pipes 2 and 3 is depressurized and a heating space 13 formed inside the inner pipe 3 is heated, and in which a tubular reinforcing member 6 is disposed so as to cover an outer circumference of the inner pipe 3, the tubular reinforcing member being formed of a material having a higher heat resistance and a higher strength than those of the material of the inner pipe 3.

A system for making oxide material may comprise a preheating cyclone stage for receiving a solid carbonate material and operating at a temperature less than a calcination temperature of the solid carbonate material, a calcination cyclone stage for heating the preheated solid carbonate material and operating at a temperature of at least the calcination temperature to convert the preheated solid carbonate material to a solid oxide material and carbon dioxide gas, a cooling cyclone stage for cooling the solid oxide material and operating at a temperature less than the calcination temperature to cool the solid oxide material to ambient temperature, a first recirculating system to extract and recirculate a first gas from an outlet of the calcination cyclone stage to an inlet of the calcination cyclone stage zone, and a second recirculating system to extract and recirculate a second gas from the cooling cyclone stage to the preheating cyclone stage.