A photoelectric materials technology enterprise specializes in the R&D and mass production of high-end optical glass and infrared transparent glass, whose products are widely applied in precision optical instruments, security infrared equipment, vehicle-mounted optical components and other fields.
The enterprise previously adopted ordinary clay crucibles and quartz crucibles for its glass melting process. Multiple pain points emerged during long-term mass production:
Conventional crucibles have limited high-temperature resistance. They are prone to cracking, deformation and spalling under prolonged melting temperatures above 1200°C;
Poor chemical stability makes them highly susceptible to corrosion by alkaline glass melts, introducing impurities, air bubbles and black spots into the molten glass, which drastically reduces the light transmittance and purity of optical glass;
Such crucibles feature a short service life and require frequent replacements. This not only drives up production costs, but also triggers production halts and unstable product yield rates, failing to meet the stringent precision and high-purity manufacturing requirements for high-end special glass.
To address the aforementioned production challenges and improve the quality and production stability of special glass products, the enterprise has adopted 99% high-purity alumina ceramic crucibles to replace conventional crucibles.Applied to the entire process of high-temperature melting, refining and forming of optical glass, and carried out mass production and practical application.
The launch and industrial application of this mass production project for special optical glass has fully validated the core value of alumina ceramic crucibles in the glass melting industry. Boasting outstanding high-temperature resistance, corrosion resistance, high purity and thermal stability, these crucibles effectively address the pain points of contamination, easy wear, low efficiency and high costs associated with conventional crucibles in the manufacturing of high-end glass. They not only meet the stringent precision quality requirements for special glass, but also drastically cut the overall costs of industrial mass production while improving production continuity and operational stability.
