Atmosphere control of pusher furnace mouth

4.1. The gas used for the gas curtain at the furnace mouth is hydrogen or ammonia decomposition gas.

4.2. When the furnace door is opened, ignite the ignition nozzle of the furnace mouth first.

5. Heating element and temperature zone distribution

5.1. The heating elements are arranged in 4 zones, which are arranged on both sides of molybdenum wire.