- Vertical hanging of silicon molybdenum rods
Vertical installation of U-shaped silicon molybdenum rods suspended from the top of the furnace is ideal. For furnaces with temperatures exceeding 1500°C, the vertical installation method is recommended. At operating temperatures, the element will elongate and deform a little. In than the proposed installation distance is strictly controlled to avoid overheating of the electric heating body and the furnace wall collision heat: end and cold end of the connection of the cone exposed in the furnace reason, the cone from the top of the fine Rui for 25-30mm, connected to the cold end (including the electric heating body of the fixture) should be at least power out of the top of the outside of the 75mm, the electric heating body in the furnace spacing should not be less than the center of the electric heaters spacing width.
- Horizontal mounting of silicon phase rods
For the electric furnace with low chamber temperature, the electric heating body can be installed horizontally and horizontally. When warming up, the hot end of the silicon molybdenum rod should be able to expand freely, and the lower part of the hot end is set up to support it, which can be made of silica nepheline refractory products with a density of more than 2.5 g/cm3 and an iron content of less than 1%. Cross-mounted electric heaters hot end temperature should not exceed 1600 ° C, high furnace temperature of 1 500% ° C. If the temperature is too high, the hot end of the surface painting of the silica film and refractory materials to react and bonded together in the cooling, preventing free contraction of the electric heating element, damage to the electric heating body.