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螺栓安装扭矩计算

Tags
Selected 螺栓, 扭矩.
  • 螺栓
  • 扭矩
  • 螺栓
  • 扭矩
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 依据:GB/T 38343-2019
螺栓安装扭矩计算
名称 单位 公式/来源 值
1 示意图
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13 输入
14  螺母承载面内径,di mm 38
15  螺母承载面外径,do mm 50
16  螺母与法兰接触面摩擦系数,fn / 0.12
17  螺纹公称直径,d mm 20
18  螺纹啮合面摩擦系数,f1 / 0.12
19  螺纹螺距,p mm 2.5
20  螺栓根径截面积,Ab mm² 23
21  螺栓安装拉应力,SB MPa 350
22 过程
23  螺母承载面的有效直径,De mm De=(do+di)/2 44
24  螺纹基本中径,d2 mm d2=d-0.6495p 18.37625
25  螺纹半角,β ° β=30° 30
26  单个螺栓安装载荷,W0 N W0=Ab×SB 8050
27 结果
28  单个螺栓安装扭矩,T N·mm 1 34703.80 
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