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    首頁  >  功能性復合材料  >  詳情
    3721酚醛層壓布棒

    54cbf63a786741bb60bac4a3fe21c062.png

    特性/Features
    玻璃化溫度130℃  B級        
    TG130℃  B Class 
    主要特性/General properties

    序號No.

        Item 

      Unit

       Specified Value 

    典型值  Typical Value

    1

    密度  Density

    g/cm3

    ≥1.25

    1.28

    2

    吸水率 Water Absorption

    %

    ≤1.0(直徑25mm(Diameter 25mm)

    0.6

    3

    彎曲強度 Flexural Strength

    MPa

    ≥118

    128

    4

    拉伸強度 Tensile strength

    MPa

    ≥80

    91

    5

    平行層向絕緣電阻 Parallel to layer Insulation Resistance 

    Ω

    ≥1.0×108

    3.5×109

    6

    平行層向擊穿電壓   20±2變壓器油中Parallel to layer direction Breakdown Voltage 20±2 in transformer oil )

    kV

    ≥10.0

    12

    外觀
    表面應光滑,無氣泡、油污及雜質,允許有不影響使用的輕微樹脂積膠和斑痕;兩端須切割整齊,端頭不得有裂紋;棒的接縫線寬度應符合如下規定:直徑15mm及以下者不得超過2mm,直徑15mm至60mm者不得超過3mm,直徑60mm以上者不得超過4mm。
    Appearance: the surface should be smooth, no bubbles, wrinkles. no obvious scratch marks. Both ends should be cut neatly . The seam line on the rod should meet the following  requirement :
    Diameter under 15mm:≤ 2mm   
    Diameter 15mm-60mm :≤3mm 
    Diameter over 60mm : ≤4mm 
     直徑偏差:Diameter Tolerance :                                  翹曲度:Warpage :

    標稱直徑 Nominal Diameter

          Tolerance 

    812

    ±0.5

    >1216

    ±0.7

    >1628

    ±1.0

    >2845

    ±1.5

    >4565

    ±2.0

    >65100

    ±2.3



    應用領域/Application
    3721酚醛層壓布棒是用棉布浸以酚醛樹脂,經成型模具熱壓而成,其截面呈圓形。
    3721棒具有較高的機械強度,適用于電器設備中作絕緣結構零部件,并可變壓器油中使用。
    3721 phenolic  laminated cloth rod is made of  cotton cloth dipped in phenolic resin, and then hot press by molding ,and the section is round .
    The main properties of 3721 rod are as below: High mechanical strength , suitable for insulation component in electrical equipment and transformer oil . 

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