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爱森Eisen螺纹测量仪三线规
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产品品牌：
爱森Eisen
类型：
精密量规

螺纹测量仪三线规

有效直径E E=M-3dm+0.866025 M:三针的外侧测量尺寸 P:螺纹间距 dm :平均线径  

①     将[三线规]的定盘固定在台架上，针规自然下垂。将需测量的[螺纹]夹紧在微型千分尺上，与[三线规]相接触。

②     将三支针规放置于螺纹的凹面,并使其保持平稳。

③     将三支针规的其中一只放置于反面侧。

④     通过微型千分尺测量，所得数值放入公式中计算，可得到螺纹有效直径。

  &性能参数：
容许公差 真圆度·圆柱度 相互差 HRC硬度  
 
±2.0μm 0.5μm 0.5μm 58以上  
 
套装编号 针规直径 适用螺纹种类、齿距以及牙數  
公制螺紋 英制螺紋 管用平行螺紋PPT  
 
齿距mm 牙數 牙數  
 

TW-01            -02                 -03

0.1155              0.1433                      0.1732

 0.2                                   0.25                              0.3 -                            -                          80

-                 -                  -

  
 
 

TW-04            -05                          -06

 0.2021                             0.2309                    0.2598 0.35                             0.4                              0.45 72                            64                            56

-                      -                   -

  
 
 
TW-07                      -08                      -09 0.2887                      0.3464             0.4330 0.5                           0.6                             0.75

48                   44.40                            -

 -                              -                       -  
 
 

TW-10                  -11                    -12

 0.5196                    0.5774                 0.7217 -                                   1                             1.25

28                    24                     20

28                -                  -

  
 
 

TW-13               -14                       -15

 0.7954                    0.8949                 1.0227 -                            1.5                               1.75 18                        16                      14

-                 -                   14

  
 
 
TW-16                   -17                    -18 1.1547                          1.1932                          1.3016 2                                    -                                      -

13                    12                        11

 -                 -                  11  
 
 
TW-19                      -20                   -21

1.4434                1.5908                         1.7897

 2.5                               -                                    3

10                       9                   8

-                -                 -

  
 
 
TW-22                       -23                    -24 2.0454                      2.3863                    2.5981 3.5                             4                                     4.5

7                       6                        -

-                -                  -

  
 
 

TW-25                  -26                       -27

2.8868              3.1817                    3.5794

 5                                5.5                                  -

5                       41/2                            4

-               -                  -

  
 
 

TW-28                    -29                    -30

0.4041               0.4619                      0.7536

 0.7                              0.8                                   -

36                      32                       -

 -              19  
 
 
TW-31 3.4641 6 - -