全套SPC表格指导表格

均值X图均值X图n A 2d 2D 3D 4A 3c 4B 3B 42

1.880 1.128- 3.267

2.6590.7979-

3.2763

1.023 1.693-

2.571 1.9540.8862- 2.5684

0.729 2.059- 2.282 1.6280.9213- 2.2665

0.577 2.326- 2.114 1.4270.9400- 2.0896

0.483 2.543- 2.004 1.2870.95150.030 1.9707

0.419 2.7040.076 1.924 1.1820.95940.118 1.8828

0.373 2.8470.136 1.864 1.0990.96500.185 1.8159

0.337 2.9700.184 1.816 1.0320.96930.239 1.76110

0.308 3.0780.223 1.7770.9750.97270.284 1.71611

0.285 3.1730.256 1.7440.9270.97540.321 1.67912

0.266 3.2580.283 1.7170.8860.97760.354 1.64013

0.249 3.3360.307 1.6930.8500.97940.382 1.61814

0.235 3.4070.328 1.6720.8170.98100.406 1.59415

0.223 3.4720.347 1.6530.7890.98230.428 1.57216

0.212 3.5320.363 1.6370.7630.98350.448 1.55217

0.203 3.5880.378 1.6220.7390.98450.446 1.53418

0.194 3.6400.391 1.6080.7180.98540.482 1.51819

0.187 3.6890.403 1.5970.6980.98620.497 1.50320

0.180 3.7350.415 1.5850.6800.98690.510 1.49021

0.173 3.7780.425 1.5750.6630.98760.523 1.47722

0.167 3.8190.434 1.5660.6470.98820.534 1.46623

0.162 3.8580.443 1.5570.6330.98870.545 1.45524

0.157 3.8950.451 1.5480.6190.98920.555 1.445250.153 3.931

0.459 1.5410.6060.98960.565 1.435X±A 2R X±A 2R 中位数X图单值X图n A 2d 2D 3D 4E 2d 2D 3D 4

控制图的常数和公式表

δ=R/D 2

δ= s/c 4

子组容量计算控制限用的系数标准差估计值的除数计算控制限用的系数UCL X ,LCL X =

UCL R = D 4R

LCL R = D 3R

UCL S = B 4s LCL S = B 3s 标准差估计值的除数计算控制限用的系数 全距R图 X-R图 标准差S图 X-s图 计算控制限用的系数计算控制限用的系数子组容量计算控制限用的系数标准差估计值的除数计算控制限用的系数 全距R图 中位数图计算控制限用的系数單值圖标准差估计值的除数UCL X ,LCL X = 全距R图

2 1.880

1.128- 3.267

2.660 1.128-

3.2673 1.187

1.693-

2.574 1.772 1.693- 2.57440.796

2.059- 2.282 1.457 2.059- 2.28250.691

2.326- 2.114 1.290 2.326- 2.11460.548

2.534- 2.004 1.184 2.534- 2.00470.508

2.7040.076 1.924 1.109 2.7040.076 1.92480.433

2.8470.136 1.864 1.054 2.8470.136 1.86490.412

2.9700.184 1.816 1.010 2.9700.184 1.816100.362

3.0780.223 1.7770.975 3.0780.223 1.777X±A 2R X±E 2R UCL ,LCL =

UCL X ,LCL X =δ=R/d 2δ= R/d 2UCL R = D 4R

UCL MR = D 4R LCL R = D 3R

LCL MR = D 3R

UCL P ,LCL P ==UCL np ,LCL np =UCL C ,LCL C =UCL U

,LCL U

=Cpk=( 1 - k ) x Cp 或 MIN {CPU,CPL}

Ppk=( 1 - k ) x Pp 或 MIN {PPU,PPL}

单边规格(设计规格)因没有规格上限或下限,没有规格下限 Cp = CPU = Cpk,没有规格上限 C U±3√

U/√n P±3√P ( 1 - P ) /√n

P±3√P ( 1 - P ) /n

nP±3√n P ( 1 - P )C±3√C

上限 Cp = CPL = Cpk

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