Disclosed are a device and method for continuously performing grain boundary diffusion and heat treatment, characterized in that the alloy workpiece or the metal workpiece are arranged in a relatively independent processing box together with a diffusion source; the device comprises, in successive arrangement, a grain boundary diffusion chamber, a first cooling chamber, a heat treatment chamber, and a second cooling chamber, and a transfer system provided between various chambers for delivering the processing box; each of the first cooling chamber and the second cooling chamber uses an air cooling system, and the cooling air temperature of the first cooling chamber is above 25° C. and at least differs by 550° C. from the grain boundary diffusion temperature of the grain boundary diffusion chamber; the cooling air temperature of the second cooling chamber is above 25° C. and at least differs by 300° C. from the heat treatment temperature of the heat treatment chamber; and the cooling chamber has a pressure of 50 kPa to 100 kPa. The device provided by the present invention can increase the cooling rate and production efficiency, and improve product consistency.

A dental treatment device with an energy source is provided which is arranged at least partially in or on a working chamber, comprising a stamp which is movable in relation to the dental treatment device as for the rest and which comprises a receiving plate for dental restoration parts. It is provided that the working chamber has a through-opening at the top, into which the receiving plate (16) is at least partially movable. Further, a drive is provided for the transfer of the stamp from a working position into a presentation position, and optionally vice versa. A cover (32) is mounted, in particular hinged, on the dental treatment device as for the rest, by which cover the through-opening (26) is closable.

A dental treatment device with an energy source is provided which is arranged at least partially in or on a working chamber, comprising a stamp which is movable in relation to the dental treatment device as for the rest and which comprises a receiving plate for dental restoration parts. It is provided that the working chamber has a through-opening at the top, into which the receiving plate (16) is at least partially movable. Further, a drive is provided for the transfer of the stamp from a working position into a presentation position, and optionally vice versa. A cover (32) is mounted, in particular hinged, on the dental treatment device as for the rest, by which cover the through-opening (26) is closable.

Described herein are glass forming apparatuses with cooled muffle assemblies and methods for using the same to form glass ribbons. According to one embodiment, a muffle assembly for a fusion forming apparatus may include a muffle frame comprising a back wall, a front wall opposite the back wall, and a pair of sidewalls joining the front wall to the back wall in a closed-loop. At least one first cooling tube may extend through the back wall and the front wall across the closed-loop. At least one second cooling tube may extend through the back wall and the front wall across the closed loop such that the at least one second cooling tube is spaced apart from and parallel with the at least one first cooling tube.

Described herein are glass forming apparatuses with cooled muffle assemblies and methods for using the same to form glass ribbons. According to one embodiment, a muffle assembly for a fusion forming apparatus may include a muffle frame comprising a back wall, a front wall opposite the back wall, and a pair of sidewalls joining the front wall to the back wall in a closed-loop. At least one first cooling tube may extend through the back wall and the front wall across the closed-loop. At least one second cooling tube may extend through the back wall and the front wall across the closed loop such that the at least one second cooling tube is spaced apart from and parallel with the at least one first cooling tube.

A waterless portable precision heating device includes an ingredient container to contain a food-related, a health-related, or a crafting-related ingredient; a thin heating element configured to surround and contact the ingredient container; an insulation layer configured to surround and contact the heating element; an outer shell surrounding the insulation layer; a lid that encloses the product container and fluidly seals it from the environment; at least one sensor configured to detect the temperature of the device; and a circuit board with a controller that controls the heating of the heating in response to signals received from the at least one sensor indicating whether the product container has reached a threshold temperature.

A waterless portable precision heating device includes an ingredient container to contain a food-related, a health-related, or a crafting-related ingredient; a thin heating element configured to surround and contact the ingredient container; an insulation layer configured to surround and contact the heating element; an outer shell surrounding the insulation layer; a lid that encloses the product container and fluidly seals it from the environment; at least one sensor configured to detect the temperature of the device; and a circuit board with a controller that controls the heating of the heating in response to signals received from the at least one sensor indicating whether the product container has reached a threshold temperature.

The invention concerns a dental furnace, with a furnace base and with a furnace hood, wherein the furnace hood includes a firing chamber for the accommodation of dental restorations, with a temperature sensor that records the temperature of the dental restoration and which is connected to a control device which controls the dental furnace, and the dental furnace (10) includes a drive unit (18) for the furnace hood (16) and the control device (30) controls the drive unit (18) based on the temperature recorded by the temperature sensor (20), namely opens the furnace hood.

The invention concerns a dental furnace, with a furnace base and with a furnace hood, wherein the furnace hood includes a firing chamber for the accommodation of dental restorations, with a temperature sensor that records the temperature of the dental restoration and which is connected to a control device which controls the dental furnace, and the dental furnace (10) includes a drive unit (18) for the furnace hood (16) and the control device (30) controls the drive unit (18) based on the temperature recorded by the temperature sensor (20), namely opens the furnace hood.

The invention relates to a dental furnace, in particular a firing furnace or press furnace, for firing or pressing a dental restoration part which is receivable in the furnace, possibly after pre-heating in a pre-heating furnace, and which is placeable on a base, in particular centrally thereon, wherein the dental furnace comprises a firing chamber whose diameter is larger than, in particular at least twice as large as, the largest dental restoration part to be fired, and which comprises a control device and an operating unit at the or for the dental furnace (10), wherein by means of the operating unit (26) the size and/or the weight and/or the number of the dental restoration part(s) (18) to be fired or pressed is adjustable in units.