The installation tips of the Mosi2 heater rod
Ushaped silicon molybdenum rod hanging from the top of the vertical installation of the most ideal. For furnaces with furnace temperatures above 1 500 ° C, vertical installation is the only reliable installation method. At the operating temperature, the element will elongate and deform. Therefore, the minimum distance installed should be strictly controlled to avoid overheating of the heating body and collision with the furnace wall.
The pyramid connected to the hot end and the cold end is exposed in the furnace, and the cone is 5-30 mm from the top of the furnace. The cold end (including the holder of the heating body) shall be exposed to at least 75 mm outside the top of the furnace. The width of the heating body
in the furnace should not be less than the center distance of the heating body.2. Horizontal installation of silicon phase bar
Furnaces with lower furnace temperature can be installed horizontally horizontally. At the elevated temperature, the hot ends of the silicon molybdenum rods should be free to expand and be supported at the lower part of the hot end. Spinel refractory products with densities greater than 2.5 g / cm3 and less than 1% iron can be used. The hot end temperature of the cross-mounted electric heating body should not exceed 1600 ℃ and the maximum furnace temperature is 1500 ℃. If the temperature is too high, the hot side of the surface of the silica film reacts with the refractory material and is bonded. In the cooling, to prevent the heating element free to shrink, damage the heating body.