首頁  >  功能性複合材料  >  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◕₪▩、油汙及雜質◕₪▩↟╃,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◕₪▩↟╃,適用於電器裝置中作絕緣結構零部件◕₪▩↟╃,並可變壓器油中使用₪₪▩₪✘。
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 . 

亚洲色欲色欲www在线看,精品久久久久久无码中文字幕,x8x8国产在线观看,asian极品呦女中国