关键特性过程控制图及CPK分析
CPK小于1.67，应分析原因
n2345678910
d2 1.13 1.69 2.06 2.33 2.53 2.7 2.85 2.97 3.08 2.33
D3000000.080.140.180.220
D4 3.27 2.57 2.28 2.11 2.00 1.92 1.86 1.82 1.78 2.11
A2 1.88 1.020.730.580.480.420.370.340.310.58
X
UCL 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 6.03 CL 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 6.00 LCL 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97 5.97
36.1236.2436.2436.1236.4836.1236.2436.0035.7635.5236.4836.2435.5236.0035.6436.0036.1235.4035.6436.1236.2435.6436.2436.1235.64
35.8835.8836.2435.8836.2435.7636.1236.2435.8835.8836.0036.3636.1236.4836.0036.2436.3636.1236.0035.6436.2436.1236.3636.6035.52
36.2436.1236.1236.0035.7636.0036.4836.0036.0035.7636.0036.1236.2436.2436.1235.8836.4835.7635.5236.0035.6435.7635.7636.1236.00
35.5236.1235.6435.6436.2435.8835.7636.2435.6436.2436.1236.4835.8835.8835.6436.2435.7635.7635.6436.3635.4036.6036.3635.8836.24
36.1235.8835.8836.1236.2436.1236.2436.3636.3635.7635.7636.0036.3636.1236.2436.1236.4836.0035.8836.6036.3635.6436.2436.1235.88
0.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.00 R
UCL0.110.110.110.110.110.110.110.110.110.110.110.110.110.110.110.110.110.110.110.110.110.110.110.110.11 CL0.050.050.050.050.050.050.050.050.050.050.050.050.050.050.050.050.050.050.050.050.050.050.050.050.05 LCL0.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.00
USL 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 6.15 LSL 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85 5.85
1.点出界就判异。
2.连续9点在中心线的同一侧。
3.连续6点递增或递减。
4.连续14点中相邻点交替上下。
5.连续3点中有2点落在中心线同一侧B区之外。
6.连续5点中有4点落在中心线同一侧的C区之外。
7.连续15点落在C区内。8.连续8点落在中心线两侧，且无一在C区内。
6.03 6.00 5.97 #REF! #REF! #REF! #REF! #REF! #REF!
0.11 0.05 0.00
6.15 5.85