Diffusion air inlet pipeline

• Main Author: HE HAITAO
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2022
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CHEMISTRY; CRYSTAL GROWTH; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; METALLURGY; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; REFINING BY ZONE-MELTING OF MATERIAL; SEMICONDUCTOR DEVICES; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; SINGLE-CRYSTAL-GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL

The utility model provides a diffusion air inlet pipeline, which is applied in a diffusion furnace pipe and is characterized by comprising an air inlet pipe and a ring-shaped ventilation ring, the ventilation ring is divided into an upper air supply part and a lower air supply part by taking the horizontal diameter of the ventilation ring as a boundary, the upper air supply part and the lower air supply part are provided with exhaust holes, and the exhaust holes are communicated with the air inlet pipe. The distance between the adjacent vent holes in the upper air supply part is smaller than that between the adjacent vent holes in the lower air supply part, so that a special dispersion structure that the vent holes in the upper air supply part are dense and the vent holes in the lower air supply part are sparse is formed; one end of the air inlet pipe is vertically communicated with the lower air supply part of the ventilation ring, and the other end of the air inlet pipe is led out of the furnace tube. By us