High-strength and high-thermal-conductivity quartz crucible with three-layer structure and preparation method thereof

The invention relates to the technical field of quartz crucibles, and discloses a high-strength and high-thermal-conductivity three-layer structure quartz crucible preparation method which comprises the following steps: S1, raw material detection: sampling detection is performed on raw materials according to purchase requirements, detection items comprise the diameter, purity and humidity of the raw materials, and then recording and analysis are performed according to actual detection conditions to obtain a detection result; the raw materials are prohibited from being used if not qualified; the qualified raw materials are added into a ball mill to be subjected to ball milling, the high-strength and high-thermal-conductivity quartz crucible with the three-layer structure comprises a base plate and a quartz layer, a graphite layer is arranged on the outer wall of one side of the quartz layer, and a protective layer is arranged on the outer wall of one side of the graphite layer. According to the invention, unqu