High-Temperature Bottom Loading Furnace up to 1650 ยฐC with Integrated Speed Cooling System for Sintering of Translucent Zirconia
Due to their maximum temperature of 1650 ยฐC and their large furnace chamber, the high-temperature bottom loading furnaces are perfectly suited for sintering translucent zirconia. The motor-driven lifting table significantly simplifies the charging of the high-temperature furnace. The all-around heating of the cylindrical furnace chamber ensures a very even temperature uniformity.
Equipped with special heating elements made of molybdenum di-silicide, chemical interactions between the charge and the furnace components are almost avoided. The sintered material is placed in saggars made of technical ceramics. Up to two batch containers for max. 15 single crowns per level can be accommodated in the LHT 01/17 LB Speed. The LHT 02/17 LB Speed offers space for up to three saggars for max. 25 individual crowns per level and thus guarantees high productivity.
ย
The high-temperature bottom loading furnaces are additionally equipped with a drying as well as a forced cooling function. For residual drying, the oven remains open gap wise during heating up to a defined temperature and thus ensures reliable removal of moisture. For accelerated cooling, the furnace is automatically opened step by step under program control. Depending on the batch used and the saggars, these high-temperature furnaces can achieve total cycle times of less than two and a half hours. The furnaces can be individually programmed for all recommended sintering curves of all zirconia manufacturers
ย Tmax 1650 ยฐC
ย Furnace chamber with a volume of 1 or 2 liters, table with large floor space
ย High-quality heating elements made of molybdenum disilicide offer very good protection against chemical
interaction between charge and heating elements
ย Appealing, double-walled stainless steel housing
ย Only fiber materials are used which are not classified as carcinogenic according to
TRGS 905, class 1 or 2
ย Outstanding temperature uniformity due to all-round furnace chamber heating
ย Scope of delivery includes a starter set for charging on one level, additional levels as
additional equipment
ย Precise, motorized toothed belt drive of the table with button operation
ย Forced cooling function with automatic, step-by-step opening from a preset temperature
ย Exhaust air vent in the roof
ย Type S thermocouple
ย Controller P480 with memory for 50 programs, 2 sample programs
ย Usable for sintering blanks of all leading manufacturers
ย Drying function: When starting the program the table will be driven in drying position and
closes automatically at 500 ยฐC
ย Defined application within the constraints of the operating instructions
ย NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
Charge saggar, two levels for LHT 02/17 LB Speed
Starter set for one level for LHT 01/17 LB Speed
Additional equipment
ย Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with
EN 60519-2 as temperature limiter to protect the furnace and load
ย Stackable saggars for loading in up to two or three levels, depending on model, see page 9
ย Process control and documentation via VCD software package for monitoring
