Optical Fiber Graphite Molds
Compared with other materials, special graphite has a high melting point (3650 ° C), a low vapor pressure at high temperatures (about 10~(-5) mm mercury column height at 2000 ° C), good electrical conductivity, and easy machining. If an ultra-high-purity graphite resistance furnace is used as the heat source for pulling the quartz fiber, the pollution level can be very low, the temperature can be easily controlled, the temperature distribution field can be adjusted according to the needs of the process. Besides, our special graphite molds are simple to use, of high quality-cost ratio and high efficiency.