弯头重量计算公式.doc

《弯头重量计算公式.doc》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、弯头重量计算公式圆环体积=2X3.14X3.14(r^2)Rr--圆环圆半径R--圆环回转半径中空管圆环体积=2X3.14X3.14((r^2)-(r'^2))Rr'--圆环内圆半径90，60，45度的弯头（肘管）体积分别是对应中空管圆环体积的1/4、1/6、1/8。钢的密度工程上计算重量时按7.85公斤/立方分米，密度X体积=重量（质量）。1、180°弯头按表2倍计算，45°按1/2计算；2、R1.0DN弯头重量按表2/3计算；3、表中未列出壁厚的重量，可取与之相近的两个重量计算平均值；4、90°弯头计算公式；0.0387*S(D-

2、S)R/1000式中S=壁厚mmD=外径mmR=弯曲半径mm90°弯头重量计算公式：W=9.685*10^-6*R(D2-d2)式中：W—90°弯头重量，kg；R—弯头的曲率半径（结构尺寸），mm；D—弯头外径，mm；d—弯头内径，mm。弯头重量公式中采用碳钢比重，即7.85kg/dm3计算。180°弯头的重量按90°弯头重量的2倍计算。即W=2*9.685*10^-6*R(D2-d2)提示：10^-6表10的-6次方。法兰成品理论重量算法：（外径＊外径－内径＊内径－螺栓孔径＊螺栓孔径＊螺栓孔数）＊厚度＊０.６１６＊０.００００１＝法

3、兰加工好的成品理论重量．　　一般的国内用的法兰对精密度要求不是很高的．用普通车床加工出来的法兰正负会有一点差．和这个法兰的实际重量要差一点．所以我们称之为理论重量．一般国内都是用理论重量来衡量法兰的标准平焊法兰理论重量表重量PNDN0.250.61.01.62.5100.360.360.610.610.61150.410.410.680.680.68200.60.60.940.940.94250.730.731.121.121.12321.191.191.861.861.86401.381.382.122.122.12501.511.

4、512.772.772.77651.851.853.313.313.46802.942.943.593.594.311003.413.414.574.576.291254.534.535.655.658.51505.145.147.617.6110.82006.856.859.249.6914.22508.968.9611.913.820.230011.911.914.618.926.535014.314.318.924.737.640017.117.124.432.150.745020.520.527.940.557.850023.

5、723.734.957.676.260033.733.748.188.2117.070044.249.180058.667.890069.182.9100079.498.3120098.6163.11400124.4244.11600166.8309.01800197.5408.02000234.6538.0平焊带颈法兰理论重量表重量PNDN0.61.01.62.54.0100.380.650.650.650.65150.440.720.720.720.72100.661.031.031.031.03250.811.241.241.2

6、41.24321.322.022.022.022.02401.552.362.362.362.36501.733.083.083.083.08652.233.663.663.933.93803.324.084.084.864.861004.065.45.46.916.911255.267.017.019.349.341506.379.19.112.212.22007.9810.610.615.619.425010.313.414.321.930.530014.115.418.828.842.935020.525.242.458.640

7、027.634.857.488.345031.141.263.785.650038.154.981.4106.260048.177.0109.4171.2带颈对焊法兰理论重量表重量PNDN1.01.62.54.06.310.016.025.0100.660.660.660.661.181.181.392.23150.750.750.750.751.301.301.652.65201.051.051.051.052.002.002.93.12251.261.261.261.262.792.793.613.74322.052.052.05

8、2.053.383.384.65.32402.372.372.372.374.44.45.927.08503.113.113.113.114.866.248.288.61653.743.743.943.945.927.9