VB-450 polykristalline Ingots Ofen

Product introduction VB-450 polycrystal ingot furnace is specially designed for the solar photovoltaic industry, which is the equipment for manufacturing polysilicon ingots of high-quality. It can adapt to long hours of work with high precision, high reliability and high degree of automation and is the necessary equipment in the production process of solar polysilicon chips. The furnace is a kind of highly efficient and energy-saving fused-silica ingot furnace, which uses mainstream heating technology in the industry, achieves steady directional solidification and can produce polysilicon ingots of high-quality and large size. Product features 1) High output: it is convenient for forming the thermal field design of vertical temperature gradient; it can achieve the rapid development of the crystal; it can produce polycrystal ingots of 450kg in about 60 hours; 2) Simple structure and high reliability: Throughout the nucleation process, insulated cage synchronous lift technology not only ensures vertical temperature gradient and the level of solid-liquid interface, but also simplifies the operability of the equipment and enhances the reliability of the equipment; 3) High efficiency: it uses mainstream graphite resistance heating technology of the industry so it heats rapidly; 4) Low energy consumption: it uses solidified carbon felt misplacing design to reduce heat loss and save energy; 5) High safety: it uses a variety of safety technologies to prevent silicon fluid from overflow and ensure personal and equipment safety; multiple safety protections of UPS power supply, software and hardware, failure alarm and safety interlocks; 6) Simple operation: it uses WINDOWS operating mode and working environment with only Chinese; 7) Fully automatic control: the whole process can be completed with fully automatic operation and it also has automatic alarm. Main technical parameters Overall dimensions 840×840×280(mm) Max material charge amount 450kg Dimensions of the quartz crucible Internal cavity:840×840×420; External cavity:878×878×420 Dimensions of body 4300×4000×4500(mm) Max stroke of insulated cage 380mm Max stroke of the furnace body below 900mm Limiting vacuum of cold furnace 0.008mbar leakage rate 0.0014mbar/min Directional crystallization speed About 12mm/h Inner diameter of the cavity 1840mm Production cycle About 62h Max temperature 1600°c