Tubular furnace

crystal growthquenchingelectric

A crystal growth tube furnace incorporating a programmable motion system to “rock” the complete hot zone for long durations while maintaining temperatures up to 1300°C in an oxidizing environment. The heated zone consists of a 50″ long mullite tube with resistance type heating elements. The hot zone contains three independent heating elements. The complete hot zone is able to continuously rock at 90° angles and is provided for growing crystal composites. Once the rocking heat cycle is complete, a unique quenching system will drop the crystal composites to a controlled depth in a cooling medium for quick cooling. General specifications: Tubular 4″ x 28″ usable hot zone 90° continuous rotation with rocking drive mechanism Quick quench mechanism for immediate cooling +/- 1 Deg. C uniform hot zone The chamber and hot zone consists of a 50″ long mullite tube with resistance-type heating elements. The hot zone contains three independent heating elements. A center zone of 28″ with 10″ buffer zones at each side accomplish a uniformity of +/- 1°C over the complete 28″ and is capable of maintaining a temperature of 1300°C. The hot zone chamber is mounted in a clear enclosure for safety and clean environments. The chamber houses a muffle tube which is captivated and centered in the hot zone by means of end plugs. This muffle tube contains the medium. One end of the muffle tube is covered with a plug, the other end is a spring loaded cover that will automatically be removed when the medium is ready for quenching. A center wire runs through the center of the tube and is attached to the crystal ampule, which allows for a programmable quenching speed and distance.