On November 15, 2017, the customized vacuum atmosphere tube resistance furnace from Chongqing University was shipped. After fierce competition from 15 furnace factories 30 days ago, Sante Furnace Technology successfully won the bid and immediately entered the design stage. After carefully discussing the actual usage process with the teacher, the product structure was optimized. This tube furnace can be used vertically or horizontally, achieving heat treatment at different positions of the sample. The high operating temperature is 1400 ℃, using alumina fiber ceramic material as the furnace lining material and high-purity corundum tube as the furnace tube. It can be used under vacuum or in a protective atmosphere. In terms of furnace material selection, Sante Furnace Technology is consistent, ensuring the long-term stability and reliability of the product.