The HTF chamber furnace range for industrial is designed to operate at maximum temperatures of 1600°C, 1700°C, or 1800°C, and molybdenum disilicide elements heat it. The furnace is available in various sizes, ranging from 27 to 560 litres, and it comes with independent over-temperature protection as standard, allowing for safe, unattended operation.
It is important to note that the HTF furnace is only suitable for heat treatment in air. However, an additional gas supply can be provided upon request, resulting in slightly modifying the atmosphere inside the furnace that will suppress the oxygen levels. This feature makes HTF ideal for sintering ceramics and oxide ceramics.
For debinding before sintering, Carbolite Gero provides a debinding package for the HTF furnace. The debinding package includes an inlet for preheated air, several gas inlets, and an afterburner. The preheated air is symmetrically purged at several gas inlets into the furnace, which improves temperature uniformity at low temperatures and sample envelopment by the incoming air. All gaseous by-products generated during the debinding process are combusted in an afterburner driven by propane gas and compressed air. After the completion of debinding, the furnace temperature will increase to begin the sintering process.
APPLICATION EXAMPLES
annealing, ceramic injection moulding (CIM), debinding, debinding in air, degassing, drying, sintering, sintering in air, sublimation, synthesis, and tempering.
Standard Features
- 1600 °C, 1700 °C & 1800 °C maximum operating temperatures
- From 27 to 560-litre capacities
- Programmable EPC3016P1 controller
- Over-temperature protection
- High-quality molybdenum disilicide heating elements
- Advanced refractory interior, used in combination with energy-efficient low thermal mass insulation
- Automatic movement of the door
- Controller mounted on a user-friendly satellite
- Ethernet communications
Options (SPECIFY THESE AT TIME OF ORDER)
- A range of sophisticated digital controllers, multisegment programmers and data loggers with digital communication options is available – more information about controllers
- Fast cooling option to reduce the natural cool-down time below 600 °C
- Current-voltage display
- Debinding options on request
- Gas supply with manually adjustable flow meter
- Modification of the atmosphere in the furnace chamber can be achieved, but oxygen cannot be removed completely because it is not gas-tight
TECHNICAL DETAILS
View inside the 1700 °C and 1800 °C HTF chamber furnace:
- heating elements (MoSi2)
- ceramic fibre insulation
- front door
- supporting frame
- thermocouple
- usable space
MoSi2, U-shaped heating elements are mounted in a vertical, hanging position in the HTF. Heat is insulated with ceramic fibre plates constructed in layers with a suited thickness for improved temperature uniformity. The maximum temperature of the plates is selected depending on the maximum temperature of the furnace.
Water cooling is not required as the insulation material has low heat conductance. The system is externally cooled by convection of ambient air and encased by metallic plates. The MoSi2 heating elements are especially suited for high-temperature processes. At high temperatures, the MoSi2 naturally creates a protective oxide layer. Outstanding temperature uniformity and compact design are unique features of the HTF chamber furnace.