A vacuum furnace is a device that performs high-temperature heat treatment or material processing in a high-vacuum environment, widely used in applications such as sapphire crystal growth, metal heat treatment, and ceramic sintering. Within the vacuum furnace, the reflective screen is a critical component, designed to reduce heat loss, improve thermal efficiency, and protect the furnace structure. Due to its excellent physical and chemical properties, molybdenum sheet is the preferred material for vacuum furnace reflective screens.

Molybdenum sheet, with its excellent high-temperature resistance, thermal properties, chemical stability, and processability, is the preferred material for covers in sapphire crystal growth furnaces.

A vacuum furnace is a device that performs high-temperature heat treatment and material processing in a high-vacuum or inert gas environment. It is widely used in fields such as sapphire crystal growth, metal heat treatment, semiconductor manufacturing, and ceramic sintering. Due to its outstanding physical and chemical properties, molybdenum sheet is the preferred material for key components of vacuum furnaces, particularly in the fabrication of reflective screens, heating elements, and connectors.

As a critical component of sapphire crystal growth furnaces, the reflective screen plays a key role in thermal management: it concentrates radiant heat from high-temperature sources through high infrared reflectivity, optimizing the temperature field distribution within the furnace and ensuring a stable temperature gradient at the crystal growth interface, while reducing heat loss to enhance thermal efficiency. This demands excellent high-temperature resistance, thermal shock resistance, and chemical stability from the reflective screen to ensure the uniformity and yield of sapphire crystal growth. Molybdenum sheet, with its high melting point, high infrared reflectivity, low thermal expansion coefficient, and superior chemical stability, is the ideal material for reflective screens.