2024/11/12 
Keep the furnace tube clean and hygienic, and the furnace tube can not remain with SiO2. When heat treat materials, in order to make the service life of the furnace tube longer, do not directly put the material on the furnace tube, but put them with a quartz boat.
When heating, please be sure to put the ceramic plug in the furnace tube, otherwise the temperature at both ends of the furnace tube is high, and the O-ring of the flange can not withstand the higher temperature, which makes the air tightness not good. The two ends of the furnace plug and the furnace are conducive to the formation of a balanced temperature field.
The temperature resistance of quartz tube is related to its purity. The higher the purity, the higher the temperature resistance.
