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    UV-stop Quartz Tube >> UV-stop Quartz Tube  


    UV-stop Quartz Tube

      This Ce doped glass can stop nearly all the radiation of ultraviolet ray of UV-B&UV-C and big proportion radiation of ultraviolet ray of UV-A.it is an ideal material which stops ultravilet ray and set out maximum visible light .it serves as the material of quartz alogen lamps ,high density discharge lamps and other UV light,which prevent the harm to the skin of the people and the things which has to be under the exposion of UV radiation and set out the maximum visible light at the same time .
    For detailed dimensional toletance and technical data please see table I,table II,table III, tableIV.

    Dimensional Tolerance (table I)
    Range of 0D
    0D
    WT
    Siding
    Out of Round
    Bow/1220mm
    ≤6mm
    ±20%
    ±10%
    12%
    2.0%
    2.5mm
    6.0-15.00m
    ±1.25%
    ±8%
    10%
    1.5%
    2.5mm
    15.00-20.00mm
    ±1.25%
    ±10%
    15%
    1.5%
    2.5mm
    20.00-25.00mm
    ±1.25%
    ±10%
    15%
    1.5%
    3.0mm
    25.00-30.00mm
    ±1.35%
    ±12%
    15%
    1.5%
    3.0mm
    29.00-38.00mm
    ±1.35%
    ±12%
    15%
    1.5%
    3.0mm

    Chemical composition&OH (table II)
    Cr
    Ge
    Fe
    Mg
    Ti
    Ca
    Al
    Na
    Li
    K
    OH
    20
    0.4
    1.5
    0.4
    100
    1.0
    16
    2.3
    0.5
    2.0
    <25

    Physical Properties (table III)
     Density 20 kg.m-3(×103)
    2.2
     Coefficient of expansion 25-300 c-1(×10-6)
    0.56
     Softening point()
    1630
     Annealning point()
    1180
     Strain point()
    1100
     Youngs modulus(pa)
    7.3×105

     Spectral Transmission at 1.0mm Thickness (table IV)
    nm
    <220
    230-280
    290-330
    350
    450
    550
    590
    780
    0
    <15
    0
    15
    88
    92
    93
    93

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