- THE MAGAZINE
Thermal Technology Inc. (TTI) recently delivered a large Astro Group 1700 automatic vacuum/hydrogen furnace to the Argonne National Laboratory. The Argonne specification required the furnace to operate up to 1600°C in a hydrogen atmosphere or vacuum. To meet these goals, TTI supplied a model APF-1836-MS furnace system. The APF-1836 is a bell-jar type furnace with the main heating element measuring 18 in. in diameter by 36 in. high, providing a work zone 15 in. in diameter by 30 in. high. The heating element is fabricated from molybdenum sheet and provides approximately 2000 square inches of radiating surface area facing the work.