Three Target Vacuum Tube

These Three target vacuum tube assimilate the advanced 12 layers of spattering deposition of trivalent technology, high borosilicate glass, gradual change of CU/SS-ALN(H)/SS-ALN(L)/ALN selective complex absorptive coating. And these make vacuum tubes have high performance of absorptance and low reflection ratio. Through the interlayer, vacuum has a unique effect of thermo, with its temperature up to 380A C of idle sunning, performing a strong heating ability.
Performance and specification:
Tube structure
All-glass double deck co-axial structure
Glass material
High borosilicate 3.3 glass
Out tube diameter and glass thickness
I 47A 0.7mm;Glass thickness 1.6A 0.15mm
I 58A 0.7mm;Glass thickness 1.6A 0.15mm
I 70A 0.7mm;Glass thickness 2.0A 0.15mm
Inner tube diameter and glass thickness
I 37A 0.7mm;Glass thickness 1.6A 0.15mm
I 47A 0.7mm;Glass thickness 1.6A 0.15mm
I 58A 0.7mm;Glass thickness 1.6A 0.15mm
Tube length
800mm,1200mm,1500mm,1600mm,1800mm,
1900mm,2000mm,2100mm,etc.
Coating material
CU/SS-ALN(H)/SS-ALN(L)/ALN
Sediment method
Three target magnetron sputtering plation
Absorptivity
0.92-0.96(AM 1.5)
Emission ratio
0.04-0.06(80A CA 5A C)
Vacuum degree
P a 5.0 A 10-3 (PA)
Stagnation temperature (temperature inside of empty evacuated tube)
260-300A C
Hail resistance
I 25mm
Pressure-endure
1MPa