The four arc pulling method single crystal growth furnace is an equipment used for growing high melting point, chemically active intermetallic compound single crystals, especially suitable for preparing materials containing rare earth or uranium elements. The core principle is to generate high-temperature melted raw materials through the discharge of four symmetrical electrodes, and then control crystal growth through a precision pulling system.

Hydraulic system maintenance is of utmost importance. Regularly check the oil quality, observe the color, odor, viscosity, and impurities. Generally, check once every 1-3 months and replace the oil if necessary. At the same time, it is necessary to control oil pollution, regularly replace the filter element (check every 1-2 months), maintain the normal oil level in the tank, and replenish the same type of hydraulic oil in a timely manner. The oil temperature should be controlled within the range of 30-55 ℃ and can be adjusted through a cooler or heater. In addition, it is necessary to regularly inspect the hydraulic cylinder piston rod, seals, and installation bolts, maintain the working sound, pressure, and flow of the hydraulic pump, and maintain the flexibility and cleanliness of the control valve.

The maintenance of key components cannot be ignored. Regularly inspect the 30 ° cone angle contact surface of the graphite crucible holder to ensure smooth and consistent contact. At the same time, it is necessary to check the lubrication of the transmission screw and guide rail, clean them in a timely manner, and add lubricating oil. For the electrodes of the electric arc furnace, it is necessary to check the temperature and return water situation at the outlet pipe to ensure smooth water flow.