three-target evacuated tube

solar vacuum tube ) Rise the heat more than 12% than nomal vacuum tube. 1) High temperature2) Super anti-cold 3) Efficient solar vacuum tube 1. Excellent performance of absorbing, but low heat loss, Especially adapted to sever cold regions,(super heat preservation). JINYI successfully introduced the Advanced Solar Selective Coating, which achieves the greater thermal efficiency and better thermal stability innovatively. The solar selective coating absorbs most solar radiation as well as suppresses the thermal emittance loss from the coating. With the help of DC magnetron sputtering technology, the absorptance of 0.94 - 0.96 and emittance of 0.04 - 0.06 has been achieved. The main absorbing wavelength ranges from 0.35μm to 3.0μm 2. Excellent resistance of burst. Improved molecule structure of plated selective coating, attributed to DC magnetron sputtering technology, makes the highest of vacuum tube working temperature as high as 500, effectively preventing